diff options
Diffstat (limited to 'target/linux/ifxmips/image/u-boot/files/cpu')
22 files changed, 6317 insertions, 0 deletions
diff --git a/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/Makefile b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/Makefile new file mode 100644 index 000000000..da329b378 --- /dev/null +++ b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/Makefile @@ -0,0 +1,49 @@ +# +# (C) Copyright 2003-2006 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +include $(TOPDIR)/config.mk + +LIB = $(obj)lib$(CPU).a + +START = start.o +COBJS = asc_serial.o au1x00_serial.o au1x00_eth.o au1x00_usb_ohci.o \ + cpu.o interrupts.o incaip_clock.o ifx_asc.o ifx_clock.o +SOBJS = incaip_wdt.o cache.o + +SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) +START := $(addprefix $(obj),$(START)) + +all: $(obj).depend $(START) $(LIB) + +$(LIB): $(OBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/asc_serial.c b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/asc_serial.c new file mode 100644 index 000000000..d95ec3fd2 --- /dev/null +++ b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/asc_serial.c @@ -0,0 +1,371 @@ +/* + * (INCA) ASC UART support + */ + +#include <config.h> + +#if defined(CONFIG_PURPLE) || defined(CONFIG_INCA_IP) + +#ifdef CONFIG_PURPLE +#define serial_init asc_serial_init +#define serial_putc asc_serial_putc +#define serial_puts asc_serial_puts +#define serial_getc asc_serial_getc +#define serial_tstc asc_serial_tstc +#define serial_setbrg asc_serial_setbrg +#endif + +#include <common.h> +#include <asm/inca-ip.h> +#include "asc_serial.h" + +#ifdef CONFIG_PURPLE + +#undef ASC_FIFO_PRESENT +#define TOUT_LOOP 100000 + +/* Set base address for second FPI interrupt control register bank */ +#define SFPI_INTCON_BASEADDR 0xBF0F0000 + +/* Register offset from base address */ +#define FBS_ISR 0x00000000 /* Interrupt status register */ +#define FBS_IMR 0x00000008 /* Interrupt mask register */ +#define FBS_IDIS 0x00000010 /* Interrupt disable register */ + +/* Interrupt status register bits */ +#define FBS_ISR_AT 0x00000040 /* ASC transmit interrupt */ +#define FBS_ISR_AR 0x00000020 /* ASC receive interrupt */ +#define FBS_ISR_AE 0x00000010 /* ASC error interrupt */ +#define FBS_ISR_AB 0x00000008 /* ASC transmit buffer interrupt */ +#define FBS_ISR_AS 0x00000004 /* ASC start of autobaud detection interrupt */ +#define FBS_ISR_AF 0x00000002 /* ASC end of autobaud detection interrupt */ + +#else + +#define ASC_FIFO_PRESENT + +#endif + + +#define SET_BIT(reg, mask) reg |= (mask) +#define CLEAR_BIT(reg, mask) reg &= (~mask) +#define CLEAR_BITS(reg, mask) CLEAR_BIT(reg, mask) +#define SET_BITS(reg, mask) SET_BIT(reg, mask) +#define SET_BITFIELD(reg, mask, off, val) {reg &= (~mask); reg |= (val << off);} + +extern uint incaip_get_fpiclk(void); + +static int serial_setopt (void); + +/* pointer to ASC register base address */ +static volatile incaAsc_t *pAsc = (incaAsc_t *)INCA_IP_ASC; + +/****************************************************************************** +* +* serial_init - initialize a INCAASC channel +* +* This routine initializes the number of data bits, parity +* and set the selected baud rate. Interrupts are disabled. +* Set the modem control signals if the option is selected. +* +* RETURNS: N/A +*/ + +int serial_init (void) +{ +#ifdef CONFIG_INCA_IP + /* we have to set PMU.EN13 bit to enable an ASC device*/ + INCAASC_PMU_ENABLE(13); +#endif + + /* and we have to set CLC register*/ + CLEAR_BIT(pAsc->asc_clc, ASCCLC_DISS); + SET_BITFIELD(pAsc->asc_clc, ASCCLC_RMCMASK, ASCCLC_RMCOFFSET, 0x0001); + + /* initialy we are in async mode */ + pAsc->asc_con = ASCCON_M_8ASYNC; + + /* select input port */ + pAsc->asc_pisel = (CONSOLE_TTY & 0x1); + +#ifdef ASC_FIFO_PRESENT + /* TXFIFO's filling level */ + SET_BITFIELD(pAsc->asc_txfcon, ASCTXFCON_TXFITLMASK, + ASCTXFCON_TXFITLOFF, INCAASC_TXFIFO_FL); + /* enable TXFIFO */ + SET_BIT(pAsc->asc_txfcon, ASCTXFCON_TXFEN); + + /* RXFIFO's filling level */ + SET_BITFIELD(pAsc->asc_txfcon, ASCRXFCON_RXFITLMASK, + ASCRXFCON_RXFITLOFF, INCAASC_RXFIFO_FL); + /* enable RXFIFO */ + SET_BIT(pAsc->asc_rxfcon, ASCRXFCON_RXFEN); +#endif + + /* enable error signals */ + SET_BIT(pAsc->asc_con, ASCCON_FEN); + SET_BIT(pAsc->asc_con, ASCCON_OEN); + +#ifdef CONFIG_INCA_IP + /* acknowledge ASC interrupts */ + ASC_INTERRUPTS_CLEAR(INCAASC_IRQ_LINE_ALL); + + /* disable ASC interrupts */ + ASC_INTERRUPTS_DISABLE(INCAASC_IRQ_LINE_ALL); +#endif + +#ifdef ASC_FIFO_PRESENT + /* set FIFOs into the transparent mode */ + SET_BIT(pAsc->asc_txfcon, ASCTXFCON_TXTMEN); + SET_BIT(pAsc->asc_rxfcon, ASCRXFCON_RXTMEN); +#endif + + /* set baud rate */ + serial_setbrg(); + + /* set the options */ + serial_setopt(); + + return 0; +} + +void serial_setbrg (void) +{ + ulong uiReloadValue, fdv; + ulong f_ASC; + +#ifdef CONFIG_INCA_IP + f_ASC = incaip_get_fpiclk(); +#else + f_ASC = ASC_CLOCK_RATE; +#endif + +#ifndef INCAASC_USE_FDV + fdv = 2; + uiReloadValue = (f_ASC / (fdv * 16 * CONFIG_BAUDRATE)) - 1; +#else + fdv = INCAASC_FDV_HIGH_BAUDRATE; + uiReloadValue = (f_ASC / (8192 * CONFIG_BAUDRATE / fdv)) - 1; +#endif /* INCAASC_USE_FDV */ + + if ( (uiReloadValue < 0) || (uiReloadValue > 8191) ) + { +#ifndef INCAASC_USE_FDV + fdv = 3; + uiReloadValue = (f_ASC / (fdv * 16 * CONFIG_BAUDRATE)) - 1; +#else + fdv = INCAASC_FDV_LOW_BAUDRATE; + uiReloadValue = (f_ASC / (8192 * CONFIG_BAUDRATE / fdv)) - 1; +#endif /* INCAASC_USE_FDV */ + + if ( (uiReloadValue < 0) || (uiReloadValue > 8191) ) + { + return; /* can't impossibly generate that baud rate */ + } + } + + /* Disable Baud Rate Generator; BG should only be written when R=0 */ + CLEAR_BIT(pAsc->asc_con, ASCCON_R); + +#ifndef INCAASC_USE_FDV + /* + * Disable Fractional Divider (FDE) + * Divide clock by reload-value + constant (BRS) + */ + /* FDE = 0 */ + CLEAR_BIT(pAsc->asc_con, ASCCON_FDE); + + if ( fdv == 2 ) + CLEAR_BIT(pAsc->asc_con, ASCCON_BRS); /* BRS = 0 */ + else + SET_BIT(pAsc->asc_con, ASCCON_BRS); /* BRS = 1 */ + +#else /* INCAASC_USE_FDV */ + + /* Enable Fractional Divider */ + SET_BIT(pAsc->asc_con, ASCCON_FDE); /* FDE = 1 */ + + /* Set fractional divider value */ + pAsc->asc_fdv = fdv & ASCFDV_VALUE_MASK; + +#endif /* INCAASC_USE_FDV */ + + /* Set reload value in BG */ + pAsc->asc_bg = uiReloadValue; + + /* Enable Baud Rate Generator */ + SET_BIT(pAsc->asc_con, ASCCON_R); /* R = 1 */ +} + +/******************************************************************************* +* +* serial_setopt - set the serial options +* +* Set the channel operating mode to that specified. Following options +* are supported: CREAD, CSIZE, PARENB, and PARODD. +* +* Note, this routine disables the transmitter. The calling routine +* may have to re-enable it. +* +* RETURNS: +* Returns 0 to indicate success, otherwise -1 is returned +*/ + +static int serial_setopt (void) +{ + ulong con; + + switch ( ASC_OPTIONS & ASCOPT_CSIZE ) + { + /* 7-bit-data */ + case ASCOPT_CS7: + con = ASCCON_M_7ASYNCPAR; /* 7-bit-data and parity bit */ + break; + + /* 8-bit-data */ + case ASCOPT_CS8: + if ( ASC_OPTIONS & ASCOPT_PARENB ) + con = ASCCON_M_8ASYNCPAR; /* 8-bit-data and parity bit */ + else + con = ASCCON_M_8ASYNC; /* 8-bit-data no parity */ + break; + + /* + * only 7 and 8-bit frames are supported + * if we don't use IOCTL extensions + */ + default: + return -1; + } + + if ( ASC_OPTIONS & ASCOPT_STOPB ) + SET_BIT(con, ASCCON_STP); /* 2 stop bits */ + else + CLEAR_BIT(con, ASCCON_STP); /* 1 stop bit */ + + if ( ASC_OPTIONS & ASCOPT_PARENB ) + SET_BIT(con, ASCCON_PEN); /* enable parity checking */ + else + CLEAR_BIT(con, ASCCON_PEN); /* disable parity checking */ + + if ( ASC_OPTIONS & ASCOPT_PARODD ) + SET_BIT(con, ASCCON_ODD); /* odd parity */ + else + CLEAR_BIT(con, ASCCON_ODD); /* even parity */ + + if ( ASC_OPTIONS & ASCOPT_CREAD ) + SET_BIT(pAsc->asc_whbcon, ASCWHBCON_SETREN); /* Receiver enable */ + + pAsc->asc_con |= con; + + return 0; +} + +void serial_putc (const char c) +{ +#ifdef ASC_FIFO_PRESENT + uint txFl = 0; +#else + uint timeout = 0; +#endif + + if (c == '\n') serial_putc ('\r'); + +#ifdef ASC_FIFO_PRESENT + /* check do we have a free space in the TX FIFO */ + /* get current filling level */ + do + { + txFl = ( pAsc->asc_fstat & ASCFSTAT_TXFFLMASK ) >> ASCFSTAT_TXFFLOFF; + } + while ( txFl == INCAASC_TXFIFO_FULL ); +#else + + while(!(*(volatile unsigned long*)(SFPI_INTCON_BASEADDR + FBS_ISR) & + FBS_ISR_AB)) + { + if (timeout++ > TOUT_LOOP) + { + break; + } + } +#endif + + pAsc->asc_tbuf = c; /* write char to Transmit Buffer Register */ + +#ifndef ASC_FIFO_PRESENT + *(volatile unsigned long*)(SFPI_INTCON_BASEADDR + FBS_ISR) = FBS_ISR_AB | + FBS_ISR_AT; +#endif + + /* check for errors */ + if ( pAsc->asc_con & ASCCON_OE ) + { + SET_BIT(pAsc->asc_whbcon, ASCWHBCON_CLROE); + return; + } +} + +void serial_puts (const char *s) +{ + while (*s) + { + serial_putc (*s++); + } +} + +int serial_getc (void) +{ + ulong symbol_mask; + char c; + + while (!serial_tstc()); + + symbol_mask = + ((ASC_OPTIONS & ASCOPT_CSIZE) == ASCOPT_CS7) ? (0x7f) : (0xff); + + c = (char)(pAsc->asc_rbuf & symbol_mask); + +#ifndef ASC_FIFO_PRESENT + *(volatile unsigned long*)(SFPI_INTCON_BASEADDR + FBS_ISR) = FBS_ISR_AR; +#endif + + return c; +} + +int serial_tstc (void) +{ + int res = 1; + +#ifdef ASC_FIFO_PRESENT + if ( (pAsc->asc_fstat & ASCFSTAT_RXFFLMASK) == 0 ) + { + res = 0; + } +#else + if (!(*(volatile unsigned long*)(SFPI_INTCON_BASEADDR + FBS_ISR) & + FBS_ISR_AR)) + + { + res = 0; + } +#endif + else if ( pAsc->asc_con & ASCCON_FE ) + { + SET_BIT(pAsc->asc_whbcon, ASCWHBCON_CLRFE); + res = 0; + } + else if ( pAsc->asc_con & ASCCON_PE ) + { + SET_BIT(pAsc->asc_whbcon, ASCWHBCON_CLRPE); + res = 0; + } + else if ( pAsc->asc_con & ASCCON_OE ) + { + SET_BIT(pAsc->asc_whbcon, ASCWHBCON_CLROE); + res = 0; + } + + return res; +} +#endif /* CONFIG_PURPLE || CONFIG_INCA_IP */ diff --git a/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/asc_serial.h b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/asc_serial.h new file mode 100644 index 000000000..7ffdcfaf8 --- /dev/null +++ b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/asc_serial.h @@ -0,0 +1,177 @@ +/* incaAscSio.h - (INCA) ASC UART tty driver header */ + +#ifndef __INCincaAscSioh +#define __INCincaAscSioh + +#include <asm/inca-ip.h> + +/* channel operating modes */ +#define ASCOPT_CSIZE 0x00000003 +#define ASCOPT_CS7 0x00000001 +#define ASCOPT_CS8 0x00000002 +#define ASCOPT_PARENB 0x00000004 +#define ASCOPT_STOPB 0x00000008 +#define ASCOPT_PARODD 0x00000010 +#define ASCOPT_CREAD 0x00000020 + +#define ASC_OPTIONS (ASCOPT_CREAD | ASCOPT_CS8) + +/* ASC input select (0 or 1) */ +#define CONSOLE_TTY 0 + +/* use fractional divider for baudrate settings */ +#define INCAASC_USE_FDV + +#ifdef INCAASC_USE_FDV + #define INCAASC_FDV_LOW_BAUDRATE 71 + #define INCAASC_FDV_HIGH_BAUDRATE 453 +#endif /*INCAASC_USE_FDV*/ + + +#define INCAASC_TXFIFO_FL 1 +#define INCAASC_RXFIFO_FL 1 +#define INCAASC_TXFIFO_FULL 16 + +/* interrupt lines masks for the ASC device interrupts*/ +/* change these macroses if it's necessary */ +#define INCAASC_IRQ_LINE_ALL 0x000F0000 /* all IRQs */ + +#define INCAASC_IRQ_LINE_TIR 0x00010000 /* TIR - Tx */ +#define INCAASC_IRQ_LINE_RIR 0x00020000 /* RIR - Rx */ +#define INCAASC_IRQ_LINE_EIR 0x00040000 /* EIR - Err */ +#define INCAASC_IRQ_LINE_TBIR 0x00080000 /* TBIR - Tx Buf*/ + +/* interrupt controller access macros */ +#define ASC_INTERRUPTS_ENABLE(X) \ + *((volatile unsigned int*) INCA_IP_ICU_IM2_IER) |= X; +#define ASC_INTERRUPTS_DISABLE(X) \ + *((volatile unsigned int*) INCA_IP_ICU_IM2_IER) &= ~X; +#define ASC_INTERRUPTS_CLEAR(X) \ + *((volatile unsigned int*) INCA_IP_ICU_IM2_ISR) = X; + +/* CLC register's bits and bitfields */ +#define ASCCLC_DISR 0x00000001 +#define ASCCLC_DISS 0x00000002 +#define ASCCLC_RMCMASK 0x0000FF00 +#define ASCCLC_RMCOFFSET 8 + +/* CON register's bits and bitfields */ +#define ASCCON_MODEMASK 0x0007 + #define ASCCON_M_8SYNC 0x0 + #define ASCCON_M_8ASYNC 0x1 + #define ASCCON_M_8IRDAASYNC 0x2 + #define ASCCON_M_7ASYNCPAR 0x3 + #define ASCCON_M_9ASYNC 0x4 + #define ASCCON_M_8WAKEUPASYNC 0x5 + #define ASCCON_M_8ASYNCPAR 0x7 +#define ASCCON_STP 0x0008 +#define ASCCON_REN 0x0010 +#define ASCCON_PEN 0x0020 +#define ASCCON_FEN 0x0040 +#define ASCCON_OEN 0x0080 +#define ASCCON_PE 0x0100 +#define ASCCON_FE 0x0200 +#define ASCCON_OE 0x0400 +#define ASCCON_FDE 0x0800 +#define ASCCON_ODD 0x1000 +#define ASCCON_BRS 0x2000 +#define ASCCON_LB 0x4000 +#define ASCCON_R 0x8000 + +/* WHBCON register's bits and bitfields */ +#define ASCWHBCON_CLRREN 0x0010 +#define ASCWHBCON_SETREN 0x0020 +#define ASCWHBCON_CLRPE 0x0100 +#define ASCWHBCON_CLRFE 0x0200 +#define ASCWHBCON_CLROE 0x0400 +#define ASCWHBCON_SETPE 0x0800 +#define ASCWHBCON_SETFE 0x1000 +#define ASCWHBCON_SETOE 0x2000 + +/* ABCON register's bits and bitfields */ +#define ASCABCON_ABEN 0x0001 +#define ASCABCON_AUREN 0x0002 +#define ASCABCON_ABSTEN 0x0004 +#define ASCABCON_ABDETEN 0x0008 +#define ASCABCON_FCDETEN 0x0010 +#define ASCABCON_EMMASK 0x0300 + #define ASCABCON_EMOFF 8 + #define ASCABCON_EM_DISAB 0x0 + #define ASCABCON_EM_DURAB 0x1 + #define ASCABCON_EM_ALWAYS 0x2 +#define ASCABCON_TXINV 0x0400 +#define ASCABCON_RXINV 0x0800 + +/* FDV register mask, offset and bitfields*/ +#define ASCFDV_VALUE_MASK 0x000001FF + +/* WHBABCON register's bits and bitfields */ +#define ASCWHBABCON_SETABEN 0x0001 +#define ASCWHBABCON_CLRABEN 0x0002 + +/* ABSTAT register's bits and bitfields */ +#define ASCABSTAT_FCSDET 0x0001 +#define ASCABSTAT_FCCDET 0x0002 +#define ASCABSTAT_SCSDET 0x0004 +#define ASCABSTAT_SCCDET 0x0008 +#define ASCABSTAT_DETWAIT 0x0010 + +/* WHBABSTAT register's bits and bitfields */ +#define ASCWHBABSTAT_CLRFCSDET 0x0001 +#define ASCWHBABSTAT_SETFCSDET 0x0002 +#define ASCWHBABSTAT_CLRFCCDET 0x0004 +#define ASCWHBABSTAT_SETFCCDET 0x0008 +#define ASCWHBABSTAT_CLRSCSDET 0x0010 +#define ASCWHBABSTAT_SETSCSDET 0x0020 +#define ASCWHBABSTAT_SETSCCDET 0x0040 +#define ASCWHBABSTAT_CLRSCCDET 0x0080 +#define ASCWHBABSTAT_CLRDETWAIT 0x0100 +#define ASCWHBABSTAT_SETDETWAIT 0x0200 + +/* TXFCON register's bits and bitfields */ +#define ASCTXFCON_TXFEN 0x0001 +#define ASCTXFCON_TXFFLU 0x0002 +#define ASCTXFCON_TXTMEN 0x0004 +#define ASCTXFCON_TXFITLMASK 0x3F00 +#define ASCTXFCON_TXFITLOFF 8 + +/* RXFCON register's bits and bitfields */ +#define ASCRXFCON_RXFEN 0x0001 +#define ASCRXFCON_RXFFLU 0x0002 +#define ASCRXFCON_RXTMEN 0x0004 +#define ASCRXFCON_RXFITLMASK 0x3F00 +#define ASCRXFCON_RXFITLOFF 8 + +/* FSTAT register's bits and bitfields */ +#define ASCFSTAT_RXFFLMASK 0x003F +#define ASCFSTAT_TXFFLMASK 0x3F00 +#define ASCFSTAT_TXFFLOFF 8 + +#define INCAASC_PMU_ENABLE(BIT) *((volatile ulong*)0xBF102000) |= (0x1 << BIT); + +typedef struct /* incaAsc_t */ +{ + volatile unsigned long asc_clc; /*0x0000*/ + volatile unsigned long asc_pisel; /*0x0004*/ + volatile unsigned long asc_rsvd1[2]; /* for mapping */ /*0x0008*/ + volatile unsigned long asc_con; /*0x0010*/ + volatile unsigned long asc_bg; /*0x0014*/ + volatile unsigned long asc_fdv; /*0x0018*/ + volatile unsigned long asc_pmw; /* not used */ /*0x001C*/ + volatile unsigned long asc_tbuf; /*0x0020*/ + volatile unsigned long asc_rbuf; /*0x0024*/ + volatile unsigned long asc_rsvd2[2]; /* for mapping */ /*0x0028*/ + volatile unsigned long asc_abcon; /*0x0030*/ + volatile unsigned long asc_abstat; /* not used */ /*0x0034*/ + volatile unsigned long asc_rsvd3[2]; /* for mapping */ /*0x0038*/ + volatile unsigned long asc_rxfcon; /*0x0040*/ + volatile unsigned long asc_txfcon; /*0x0044*/ + volatile unsigned long asc_fstat; /*0x0048*/ + volatile unsigned long asc_rsvd4; /* for mapping */ /*0x004C*/ + volatile unsigned long asc_whbcon; /*0x0050*/ + volatile unsigned long asc_whbabcon; /*0x0054*/ + volatile unsigned long asc_whbabstat; /* not used */ /*0x0058*/ + +} incaAsc_t; + +#endif /* __INCincaAscSioh */ diff --git a/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/au1x00_eth.c b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/au1x00_eth.c new file mode 100644 index 000000000..078e8328b --- /dev/null +++ b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/au1x00_eth.c @@ -0,0 +1,311 @@ +/* Only eth0 supported for now + * + * (C) Copyright 2003 + * Thomas.Lange@corelatus.se + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#include <config.h> + +#ifdef CONFIG_AU1X00 + +#if defined(CFG_DISCOVER_PHY) +#error "PHY not supported yet" +/* We just assume that we are running 100FD for now */ +/* We all use switches, right? ;-) */ +#endif + +/* I assume ethernet behaves like au1000 */ + +#ifdef CONFIG_AU1000 +/* Base address differ between cpu:s */ +#define ETH0_BASE AU1000_ETH0_BASE +#define MAC0_ENABLE AU1000_MAC0_ENABLE +#else +#ifdef CONFIG_AU1100 +#define ETH0_BASE AU1100_ETH0_BASE +#define MAC0_ENABLE AU1100_MAC0_ENABLE +#else +#ifdef CONFIG_AU1500 +#define ETH0_BASE AU1500_ETH0_BASE +#define MAC0_ENABLE AU1500_MAC0_ENABLE +#else +#ifdef CONFIG_AU1550 +#define ETH0_BASE AU1550_ETH0_BASE +#define MAC0_ENABLE AU1550_MAC0_ENABLE +#else +#error "No valid cpu set" +#endif +#endif +#endif +#endif + +#include <common.h> +#include <malloc.h> +#include <net.h> +#include <command.h> +#include <asm/io.h> +#include <asm/au1x00.h> + +#if (CONFIG_COMMANDS & CFG_CMD_MII) +#include <miiphy.h> +#endif + +/* Ethernet Transmit and Receive Buffers */ +#define DBUF_LENGTH 1520 +#define PKT_MAXBUF_SIZE 1518 + +static char txbuf[DBUF_LENGTH]; + +static int next_tx; +static int next_rx; + +/* 4 rx and 4 tx fifos */ +#define NO_OF_FIFOS 4 + +typedef struct{ + u32 status; + u32 addr; + u32 len; /* Only used for tx */ + u32 not_used; +} mac_fifo_t; + +mac_fifo_t mac_fifo[NO_OF_FIFOS]; + +#define MAX_WAIT 1000 + +static int au1x00_send(struct eth_device* dev, volatile void *packet, int length){ + volatile mac_fifo_t *fifo_tx = + (volatile mac_fifo_t*)(MAC0_TX_DMA_ADDR+MAC_TX_BUFF0_STATUS); + int i; + int res; + + /* tx fifo should always be idle */ + fifo_tx[next_tx].len = length; + fifo_tx[next_tx].addr = (virt_to_phys(packet))|TX_DMA_ENABLE; + au_sync(); + + udelay(1); + i=0; + while(!(fifo_tx[next_tx].addr&TX_T_DONE)){ + if(i>MAX_WAIT){ + printf("TX timeout\n"); + break; + } + udelay(1); + i++; + } + + /* Clear done bit */ + fifo_tx[next_tx].addr = 0; + fifo_tx[next_tx].len = 0; + au_sync(); + + res = fifo_tx[next_tx].status; + + next_tx++; + if(next_tx>=NO_OF_FIFOS){ + next_tx=0; + } + return(res); +} + +static int au1x00_recv(struct eth_device* dev){ + volatile mac_fifo_t *fifo_rx = + (volatile mac_fifo_t*)(MAC0_RX_DMA_ADDR+MAC_RX_BUFF0_STATUS); + + int length; + u32 status; + + for(;;){ + if(!(fifo_rx[next_rx].addr&RX_T_DONE)){ + /* Nothing has been received */ + return(-1); + } + + status = fifo_rx[next_rx].status; + + length = status&0x3FFF; + + if(status&RX_ERROR){ + printf("Rx error 0x%x\n", status); + } + else{ + /* Pass the packet up to the protocol layers. */ + NetReceive(NetRxPackets[next_rx], length - 4); + } + + fifo_rx[next_rx].addr = (virt_to_phys(NetRxPackets[next_rx]))|RX_DMA_ENABLE; + + next_rx++; + if(next_rx>=NO_OF_FIFOS){ + next_rx=0; + } + } /* for */ + + return(0); /* Does anyone use this? */ +} + +static int au1x00_init(struct eth_device* dev, bd_t * bd){ + + volatile u32 *macen = (volatile u32*)MAC0_ENABLE; + volatile u32 *mac_ctrl = (volatile u32*)(ETH0_BASE+MAC_CONTROL); + volatile u32 *mac_addr_high = (volatile u32*)(ETH0_BASE+MAC_ADDRESS_HIGH); + volatile u32 *mac_addr_low = (volatile u32*)(ETH0_BASE+MAC_ADDRESS_LOW); + volatile u32 *mac_mcast_high = (volatile u32*)(ETH0_BASE+MAC_MCAST_HIGH); + volatile u32 *mac_mcast_low = (volatile u32*)(ETH0_BASE+MAC_MCAST_LOW); + volatile mac_fifo_t *fifo_tx = + (volatile mac_fifo_t*)(MAC0_TX_DMA_ADDR+MAC_TX_BUFF0_STATUS); + volatile mac_fifo_t *fifo_rx = + (volatile mac_fifo_t*)(MAC0_RX_DMA_ADDR+MAC_RX_BUFF0_STATUS); + int i; + + next_tx = TX_GET_DMA_BUFFER(fifo_tx[0].addr); + next_rx = RX_GET_DMA_BUFFER(fifo_rx[0].addr); + + /* We have to enable clocks before releasing reset */ + *macen = MAC_EN_CLOCK_ENABLE; + udelay(10); + + /* Enable MAC0 */ + /* We have to release reset before accessing registers */ + *macen = MAC_EN_CLOCK_ENABLE|MAC_EN_RESET0| + MAC_EN_RESET1|MAC_EN_RESET2; + udelay(10); + + for(i=0;i<NO_OF_FIFOS;i++){ + fifo_tx[i].len = 0; + fifo_tx[i].addr = virt_to_phys(&txbuf[0]); + fifo_rx[i].addr = (virt_to_phys(NetRxPackets[i]))|RX_DMA_ENABLE; + } + + /* Put mac addr in little endian */ +#define ea eth_get_dev()->enetaddr + *mac_addr_high = (ea[5] << 8) | (ea[4] ) ; + *mac_addr_low = (ea[3] << 24) | (ea[2] << 16) | + (ea[1] << 8) | (ea[0] ) ; +#undef ea + *mac_mcast_low = 0; + *mac_mcast_high = 0; + + /* Make sure the MAC buffer is in the correct endian mode */ +#ifdef __LITTLE_ENDIAN + *mac_ctrl = MAC_FULL_DUPLEX; + udelay(1); + *mac_ctrl = MAC_FULL_DUPLEX|MAC_RX_ENABLE|MAC_TX_ENABLE; +#else + *mac_ctrl = MAC_BIG_ENDIAN|MAC_FULL_DUPLEX; + udelay(1); + *mac_ctrl = MAC_BIG_ENDIAN|MAC_FULL_DUPLEX|MAC_RX_ENABLE|MAC_TX_ENABLE; +#endif + + return(1); +} + +static void au1x00_halt(struct eth_device* dev){ +} + +int au1x00_enet_initialize(bd_t *bis){ + struct eth_device* dev; + + if ((dev = (struct eth_device*)malloc(sizeof *dev)) == NULL) { + puts ("malloc failed\n"); + return 0; + } + + memset(dev, 0, sizeof *dev); + + sprintf(dev->name, "Au1X00 ethernet"); + dev->iobase = 0; + dev->priv = 0; + dev->init = au1x00_init; + dev->halt = au1x00_halt; + dev->send = au1x00_send; + dev->recv = au1x00_recv; + + eth_register(dev); + +#if (CONFIG_COMMANDS & CFG_CMD_MII) + miiphy_register(dev->name, + au1x00_miiphy_read, au1x00_miiphy_write); +#endif + + return 1; +} + +#if (CONFIG_COMMANDS & CFG_CMD_MII) +int au1x00_miiphy_read(char *devname, unsigned char addr, + unsigned char reg, unsigned short * value) +{ + volatile u32 *mii_control_reg = (volatile u32*)(ETH0_BASE+MAC_MII_CNTRL); + volatile u32 *mii_data_reg = (volatile u32*)(ETH0_BASE+MAC_MII_DATA); + u32 mii_control; + unsigned int timedout = 20; + + while (*mii_control_reg & MAC_MII_BUSY) { + udelay(1000); + if (--timedout == 0) { + printf("au1x00_eth: miiphy_read busy timeout!!\n"); + return -1; + } + } + + mii_control = MAC_SET_MII_SELECT_REG(reg) | + MAC_SET_MII_SELECT_PHY(addr) | MAC_MII_READ; + + *mii_control_reg = mii_control; + + timedout = 20; + while (*mii_control_reg & MAC_MII_BUSY) { + udelay(1000); + if (--timedout == 0) { + printf("au1x00_eth: miiphy_read busy timeout!!\n"); + return -1; + } + } + *value = *mii_data_reg; + return 0; +} + +int au1x00_miiphy_write(char *devname, unsigned char addr, + unsigned char reg, unsigned short value) +{ + volatile u32 *mii_control_reg = (volatile u32*)(ETH0_BASE+MAC_MII_CNTRL); + volatile u32 *mii_data_reg = (volatile u32*)(ETH0_BASE+MAC_MII_DATA); + u32 mii_control; + unsigned int timedout = 20; + + while (*mii_control_reg & MAC_MII_BUSY) { + udelay(1000); + if (--timedout == 0) { + printf("au1x00_eth: miiphy_write busy timeout!!\n"); + return; + } + } + + mii_control = MAC_SET_MII_SELECT_REG(reg) | + MAC_SET_MII_SELECT_PHY(addr) | MAC_MII_WRITE; + + *mii_data_reg = value; + *mii_control_reg = mii_control; + return 0; +} +#endif /* CONFIG_COMMANDS & CFG_CMD_MII */ + +#endif /* CONFIG_AU1X00 */ diff --git a/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/au1x00_serial.c b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/au1x00_serial.c new file mode 100644 index 000000000..42c668ee3 --- /dev/null +++ b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/au1x00_serial.c @@ -0,0 +1,135 @@ +/* + * AU1X00 UART support + * + * Hardcoded to UART 0 for now + * Speed and options also hardcoded to 115200 8N1 + * + * Copyright (c) 2003 Thomas.Lange@corelatus.se + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <config.h> + +#ifdef CONFIG_AU1X00 + +#include <common.h> +#include <asm/au1x00.h> + +/****************************************************************************** +* +* serial_init - initialize a channel +* +* This routine initializes the number of data bits, parity +* and set the selected baud rate. Interrupts are disabled. +* Set the modem control signals if the option is selected. +* +* RETURNS: N/A +*/ + +int serial_init (void) +{ + volatile u32 *uart_fifoctl = (volatile u32*)(UART0_ADDR+UART_FCR); + volatile u32 *uart_enable = (volatile u32*)(UART0_ADDR+UART_ENABLE); + + /* Enable clocks first */ + *uart_enable = UART_EN_CE; + + /* Then release reset */ + /* Must release reset before setting other regs */ + *uart_enable = UART_EN_CE|UART_EN_E; + + /* Activate fifos, reset tx and rx */ + /* Set tx trigger level to 12 */ + *uart_fifoctl = UART_FCR_ENABLE_FIFO|UART_FCR_CLEAR_RCVR| + UART_FCR_CLEAR_XMIT|UART_FCR_T_TRIGGER_12; + + serial_setbrg(); + + return 0; +} + + +void serial_setbrg (void) +{ + volatile u32 *uart_clk = (volatile u32*)(UART0_ADDR+UART_CLK); + volatile u32 *uart_lcr = (volatile u32*)(UART0_ADDR+UART_LCR); + volatile u32 *sys_powerctrl = (u32 *)SYS_POWERCTRL; + int sd; + int divisorx2; + + /* sd is system clock divisor */ + /* see section 10.4.5 in au1550 datasheet */ + sd = (*sys_powerctrl & 0x03) + 2; + + /* calulate 2x baudrate and round */ + divisorx2 = ((CFG_HZ/(sd * 16 * CONFIG_BAUDRATE))); + + if (divisorx2 & 0x01) + divisorx2 = divisorx2 + 1; + + *uart_clk = divisorx2 / 2; + + /* Set parity, stop bits and word length to 8N1 */ + *uart_lcr = UART_LCR_WLEN8; +} + +void serial_putc (const char c) +{ + volatile u32 *uart_lsr = (volatile u32*)(UART0_ADDR+UART_LSR); + volatile u32 *uart_tx = (volatile u32*)(UART0_ADDR+UART_TX); + + if (c == '\n') serial_putc ('\r'); + + /* Wait for fifo to shift out some bytes */ + while((*uart_lsr&UART_LSR_THRE)==0); + + *uart_tx = (u32)c; +} + +void serial_puts (const char *s) +{ + while (*s) + { + serial_putc (*s++); + } +} + +int serial_getc (void) +{ + volatile u32 *uart_rx = (volatile u32*)(UART0_ADDR+UART_RX); + char c; + + while (!serial_tstc()); + + c = (*uart_rx&0xFF); + return c; +} + +int serial_tstc (void) +{ + volatile u32 *uart_lsr = (volatile u32*)(UART0_ADDR+UART_LSR); + + if(*uart_lsr&UART_LSR_DR){ + /* Data in rfifo */ + return(1); + } + return 0; +} +#endif /* CONFIG_SERIAL_AU1X00 */ diff --git a/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/au1x00_usb_ohci.c b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/au1x00_usb_ohci.c new file mode 100644 index 000000000..dbf72dc6f --- /dev/null +++ b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/au1x00_usb_ohci.c @@ -0,0 +1,1727 @@ +/* + * URB OHCI HCD (Host Controller Driver) for USB on the AU1x00. + * + * (C) Copyright 2003 + * Gary Jennejohn, DENX Software Engineering <gj@denx.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * Note: Part of this code has been derived from linux + * + */ +/* + * IMPORTANT NOTES + * 1 - you MUST define LITTLEENDIAN in the configuration file for the + * board or this driver will NOT work! + * 2 - this driver is intended for use with USB Mass Storage Devices + * (BBB) ONLY. There is NO support for Interrupt or Isochronous pipes! + */ + +#include <config.h> + +#if defined(CONFIG_AU1X00) && defined(CONFIG_USB_OHCI) + +/* #include <pci.h> no PCI on the AU1x00 */ + +#include <common.h> +#include <malloc.h> +#include <asm/io.h> +#include <asm/au1x00.h> +#include <usb.h> +#include "au1x00_usb_ohci.h" + +#define OHCI_USE_NPS /* force NoPowerSwitching mode */ +#define OHCI_VERBOSE_DEBUG /* not always helpful */ +#define OHCI_FILL_TRACE + +#define USBH_ENABLE_BE (1<<0) +#define USBH_ENABLE_C (1<<1) +#define USBH_ENABLE_E (1<<2) +#define USBH_ENABLE_CE (1<<3) +#define USBH_ENABLE_RD (1<<4) + +#ifdef LITTLEENDIAN +#define USBH_ENABLE_INIT (USBH_ENABLE_CE | USBH_ENABLE_E | USBH_ENABLE_C) +#else +#define USBH_ENABLE_INIT (USBH_ENABLE_CE | USBH_ENABLE_E | USBH_ENABLE_C | USBH_ENABLE_BE) +#endif + + +/* For initializing controller (mask in an HCFS mode too) */ +#define OHCI_CONTROL_INIT \ + (OHCI_CTRL_CBSR & 0x3) | OHCI_CTRL_IE | OHCI_CTRL_PLE + +#undef readl +#undef writel + +#define readl(a) au_readl((long)(a)) +#define writel(v,a) au_writel((v),(int)(a)) + +#define min_t(type,x,y) ({ type __x = (x); type __y = (y); __x < __y ? __x: __y; }) + +#define DEBUG +#ifdef DEBUG +#define dbg(format, arg...) printf("DEBUG: " format "\n", ## arg) +#else +#define dbg(format, arg...) do {} while(0) +#endif /* DEBUG */ +#define err(format, arg...) printf("ERROR: " format "\n", ## arg) +#define SHOW_INFO +#ifdef SHOW_INFO +#define info(format, arg...) printf("INFO: " format "\n", ## arg) +#else +#define info(format, arg...) do {} while(0) +#endif + +#define m16_swap(x) swap_16(x) +#define m32_swap(x) swap_32(x) + +/* global ohci_t */ +static ohci_t gohci; +/* this must be aligned to a 256 byte boundary */ +struct ohci_hcca ghcca[1]; +/* a pointer to the aligned storage */ +struct ohci_hcca *phcca; +/* this allocates EDs for all possible endpoints */ +struct ohci_device ohci_dev; +/* urb_priv */ +urb_priv_t urb_priv; +/* RHSC flag */ +int got_rhsc; +/* device which was disconnected */ +struct usb_device *devgone; + +/*-------------------------------------------------------------------------*/ + +/* AMD-756 (D2 rev) reports corrupt register contents in some cases. + * The erratum (#4) description is incorrect. AMD's workaround waits + * till some bits (mostly reserved) are clear; ok for all revs. + */ +#define OHCI_QUIRK_AMD756 0xabcd +#define read_roothub(hc, register, mask) ({ \ + u32 temp = readl (&hc->regs->roothub.register); \ + if (hc->flags & OHCI_QUIRK_AMD756) \ + while (temp & mask) \ + temp = readl (&hc->regs->roothub.register); \ + temp; }) + +static u32 roothub_a (struct ohci *hc) + { return read_roothub (hc, a, 0xfc0fe000); } +static inline u32 roothub_b (struct ohci *hc) + { return readl (&hc->regs->roothub.b); } +static inline u32 roothub_status (struct ohci *hc) + { return readl (&hc->regs->roothub.status); } +static u32 roothub_portstatus (struct ohci *hc, int i) + { return read_roothub (hc, portstatus [i], 0xffe0fce0); } + + +/* forward declaration */ +static int hc_interrupt (void); +static void +td_submit_job (struct usb_device * dev, unsigned long pipe, void * buffer, + int transfer_len, struct devrequest * setup, urb_priv_t * urb, int interval); + +/*-------------------------------------------------------------------------* + * URB support functions + *-------------------------------------------------------------------------*/ + +/* free HCD-private data associated with this URB */ + +static void urb_free_priv (urb_priv_t * urb) +{ + int i; + int last; + struct td * td; + + last = urb->length - 1; + if (last >= 0) { + for (i = 0; i <= last; i++) { + td = urb->td[i]; + if (td) { + td->usb_dev = NULL; + urb->td[i] = NULL; + } + } + } +} + +/*-------------------------------------------------------------------------*/ + +#ifdef DEBUG +static int sohci_get_current_frame_number (struct usb_device * dev); + +/* debug| print the main components of an URB + * small: 0) header + data packets 1) just header */ + +static void pkt_print (struct usb_device * dev, unsigned long pipe, void * buffer, + int transfer_len, struct devrequest * setup, char * str, int small) +{ + urb_priv_t * purb = &urb_priv; + + dbg("%s URB:[%4x] dev:%2d,ep:%2d-%c,type:%s,len:%d/%d stat:%#lx", + str, + sohci_get_current_frame_number (dev), + usb_pipedevice (pipe), + usb_pipeendpoint (pipe), + usb_pipeout (pipe)? 'O': 'I', + usb_pipetype (pipe) < 2? (usb_pipeint (pipe)? "INTR": "ISOC"): + (usb_pipecontrol (pipe)? "CTRL": "BULK"), + purb->actual_length, + transfer_len, dev->status); +#ifdef OHCI_VERBOSE_DEBUG + if (!small) { + int i, len; + + if (usb_pipecontrol (pipe)) { + printf (__FILE__ ": cmd(8):"); + for (i = 0; i < 8 ; i++) + printf (" %02x", ((__u8 *) setup) [i]); + printf ("\n"); + } + if (transfer_len > 0 && buffer) { + printf (__FILE__ ": data(%d/%d):", + purb->actual_length, + transfer_len); + len = usb_pipeout (pipe)? + transfer_len: purb->actual_length; + for (i = 0; i < 16 && i < len; i++) + printf (" %02x", ((__u8 *) buffer) [i]); + printf ("%s\n", i < len? "...": ""); + } + } +#endif +} + +/* just for debugging; prints non-empty branches of the int ed tree inclusive iso eds*/ +void ep_print_int_eds (ohci_t *ohci, char * str) { + int i, j; + __u32 * ed_p; + for (i= 0; i < 32; i++) { + j = 5; + ed_p = &(ohci->hcca->int_table [i]); + if (*ed_p == 0) + continue; + printf (__FILE__ ": %s branch int %2d(%2x):", str, i, i); + while (*ed_p != 0 && j--) { + ed_t *ed = (ed_t *)m32_swap(ed_p); + printf (" ed: %4x;", ed->hwINFO); + ed_p = &ed->hwNextED; + } + printf ("\n"); + } +} + +static void ohci_dump_intr_mask (char *label, __u32 mask) +{ + dbg ("%s: 0x%08x%s%s%s%s%s%s%s%s%s", + label, + mask, + (mask & OHCI_INTR_MIE) ? " MIE" : "", + (mask & OHCI_INTR_OC) ? " OC" : "", + (mask & OHCI_INTR_RHSC) ? " RHSC" : "", + (mask & OHCI_INTR_FNO) ? " FNO" : "", + (mask & OHCI_INTR_UE) ? " UE" : "", + (mask & OHCI_INTR_RD) ? " RD" : "", + (mask & OHCI_INTR_SF) ? " SF" : "", + (mask & OHCI_INTR_WDH) ? " WDH" : "", + (mask & OHCI_INTR_SO) ? " SO" : "" + ); +} + +static void maybe_print_eds (char *label, __u32 value) +{ + ed_t *edp = (ed_t *)value; + + if (value) { + dbg ("%s %08x", label, value); + dbg ("%08x", edp->hwINFO); + dbg ("%08x", edp->hwTailP); + dbg ("%08x", edp->hwHeadP); + dbg ("%08x", edp->hwNextED); + } +} + +static char * hcfs2string (int state) +{ + switch (state) { + case OHCI_USB_RESET: return "reset"; + case OHCI_USB_RESUME: return "resume"; + case OHCI_USB_OPER: return "operational"; + case OHCI_USB_SUSPEND: return "suspend"; + } + return "?"; +} + +/* dump control and status registers */ +static void ohci_dump_status (ohci_t *controller) +{ + struct ohci_regs *regs = controller->regs; + __u32 temp; + + temp = readl (®s->revision) & 0xff; + if (temp != 0x10) + dbg ("spec %d.%d", (temp >> 4), (temp & 0x0f)); + + temp = readl (®s->control); + dbg ("control: 0x%08x%s%s%s HCFS=%s%s%s%s%s CBSR=%d", temp, + (temp & OHCI_CTRL_RWE) ? " RWE" : "", + (temp & OHCI_CTRL_RWC) ? " RWC" : "", + (temp & OHCI_CTRL_IR) ? " IR" : "", + hcfs2string (temp & OHCI_CTRL_HCFS), + (temp & OHCI_CTRL_BLE) ? " BLE" : "", + (temp & OHCI_CTRL_CLE) ? " CLE" : "", + (temp & OHCI_CTRL_IE) ? " IE" : "", + (temp & OHCI_CTRL_PLE) ? " PLE" : "", + temp & OHCI_CTRL_CBSR + ); + + temp = readl (®s->cmdstatus); + dbg ("cmdstatus: 0x%08x SOC=%d%s%s%s%s", temp, + (temp & OHCI_SOC) >> 16, + (temp & OHCI_OCR) ? " OCR" : "", + (temp & OHCI_BLF) ? " BLF" : "", + (temp & OHCI_CLF) ? " CLF" : "", + (temp & OHCI_HCR) ? " HCR" : "" + ); + + ohci_dump_intr_mask ("intrstatus", readl (®s->intrstatus)); + ohci_dump_intr_mask ("intrenable", readl (®s->intrenable)); + + maybe_print_eds ("ed_periodcurrent", readl (®s->ed_periodcurrent)); + + maybe_print_eds ("ed_controlhead", readl (®s->ed_controlhead)); + maybe_print_eds ("ed_controlcurrent", readl (®s->ed_controlcurrent)); + + maybe_print_eds ("ed_bulkhead", readl (®s->ed_bulkhead)); + maybe_print_eds ("ed_bulkcurrent", readl (®s->ed_bulkcurrent)); + + maybe_print_eds ("donehead", readl (®s->donehead)); +} + +static void ohci_dump_roothub (ohci_t *controller, int verbose) +{ + __u32 temp, ndp, i; + + temp = roothub_a (controller); + ndp = (temp & RH_A_NDP); + + if (verbose) { + dbg ("roothub.a: %08x POTPGT=%d%s%s%s%s%s NDP=%d", temp, + ((temp & RH_A_POTPGT) >> 24) & 0xff, + (temp & RH_A_NOCP) ? " NOCP" : "", + (temp & RH_A_OCPM) ? " OCPM" : "", + (temp & RH_A_DT) ? " DT" : "", + (temp & RH_A_NPS) ? " NPS" : "", + (temp & RH_A_PSM) ? " PSM" : "", + ndp + ); + temp = roothub_b (controller); + dbg ("roothub.b: %08x PPCM=%04x DR=%04x", + temp, + (temp & RH_B_PPCM) >> 16, + (temp & RH_B_DR) + ); + temp = roothub_status (controller); + dbg ("roothub.status: %08x%s%s%s%s%s%s", + temp, + (temp & RH_HS_CRWE) ? " CRWE" : "", + (temp & RH_HS_OCIC) ? " OCIC" : "", + (temp & RH_HS_LPSC) ? " LPSC" : "", + (temp & RH_HS_DRWE) ? " DRWE" : "", + (temp & RH_HS_OCI) ? " OCI" : "", + (temp & RH_HS_LPS) ? " LPS" : "" + ); + } + + for (i = 0; i < ndp; i++) { + temp = roothub_portstatus (controller, i); + dbg ("roothub.portstatus [%d] = 0x%08x%s%s%s%s%s%s%s%s%s%s%s%s", + i, + temp, + (temp & RH_PS_PRSC) ? " PRSC" : "", + (temp & RH_PS_OCIC) ? " OCIC" : "", + (temp & RH_PS_PSSC) ? " PSSC" : "", + (temp & RH_PS_PESC) ? " PESC" : "", + (temp & RH_PS_CSC) ? " CSC" : "", + + (temp & RH_PS_LSDA) ? " LSDA" : "", + (temp & RH_PS_PPS) ? " PPS" : "", + (temp & RH_PS_PRS) ? " PRS" : "", + (temp & RH_PS_POCI) ? " POCI" : "", + (temp & RH_PS_PSS) ? " PSS" : "", + + (temp & RH_PS_PES) ? " PES" : "", + (temp & RH_PS_CCS) ? " CCS" : "" + ); + } +} + +static void ohci_dump (ohci_t *controller, int verbose) +{ + dbg ("OHCI controller usb-%s state", controller->slot_name); + + /* dumps some of the state we know about */ + ohci_dump_status (controller); + if (verbose) + ep_print_int_eds (controller, "hcca"); + dbg ("hcca frame #%04x", controller->hcca->frame_no); + ohci_dump_roothub (controller, 1); +} + + +#endif /* DEBUG */ + +/*-------------------------------------------------------------------------* + * Interface functions (URB) + *-------------------------------------------------------------------------*/ + +/* get a transfer request */ + +int sohci_submit_job(struct usb_device *dev, unsigned long pipe, void *buffer, + int transfer_len, struct devrequest *setup, int interval) +{ + ohci_t *ohci; + ed_t * ed; + urb_priv_t *purb_priv; + int i, size = 0; + + ohci = &gohci; + + /* when controller's hung, permit only roothub cleanup attempts + * such as powering down ports */ + if (ohci->disabled) { + err("sohci_submit_job: EPIPE"); + return -1; + } + + /* every endpoint has a ed, locate and fill it */ + if (!(ed = ep_add_ed (dev, pipe))) { + err("sohci_submit_job: ENOMEM"); + return -1; + } + + /* for the private part of the URB we need the number of TDs (size) */ + switch (usb_pipetype (pipe)) { + case PIPE_BULK: /* one TD for every 4096 Byte */ + size = (transfer_len - 1) / 4096 + 1; + break; + case PIPE_CONTROL: /* 1 TD for setup, 1 for ACK and 1 for every 4096 B */ + size = (transfer_len == 0)? 2: + (transfer_len - 1) / 4096 + 3; + break; + } + + if (size >= (N_URB_TD - 1)) { + err("need %d TDs, only have %d", size, N_URB_TD); + return -1; + } + purb_priv = &urb_priv; + purb_priv->pipe = pipe; + + /* fill the private part of the URB */ + purb_priv->length = size; + purb_priv->ed = ed; + purb_priv->actual_length = 0; + + /* allocate the TDs */ + /* note that td[0] was allocated in ep_add_ed */ + for (i = 0; i < size; i++) { + purb_priv->td[i] = td_alloc (dev); + if (!purb_priv->td[i]) { + purb_priv->length = i; + urb_free_priv (purb_priv); + err("sohci_submit_job: ENOMEM"); + return -1; + } + } + + if (ed->state == ED_NEW || (ed->state & ED_DEL)) { + urb_free_priv (purb_priv); + err("sohci_submit_job: EINVAL"); + return -1; + } + + /* link the ed into a chain if is not already */ + if (ed->state != ED_OPER) + ep_link (ohci, ed); + + /* fill the TDs and link it to the ed */ + td_submit_job(dev, pipe, buffer, transfer_len, setup, purb_priv, interval); + + return 0; +} + +/*-------------------------------------------------------------------------*/ + +#ifdef DEBUG +/* tell us the current USB frame number */ + +static int sohci_get_current_frame_number (struct usb_device *usb_dev) +{ + ohci_t *ohci = &gohci; + + return m16_swap (ohci->hcca->frame_no); +} +#endif + +/*-------------------------------------------------------------------------* + * ED handling functions + *-------------------------------------------------------------------------*/ + +/* link an ed into one of the HC chains */ + +static int ep_link (ohci_t *ohci, ed_t *edi) +{ + volatile ed_t *ed = edi; + + ed->state = ED_OPER; + + switch (ed->type) { + case PIPE_CONTROL: + ed->hwNextED = 0; + if (ohci->ed_controltail == NULL) { + writel ((long)ed, &ohci->regs->ed_controlhead); + } else { + ohci->ed_controltail->hwNextED = m32_swap (ed); + } + ed->ed_prev = ohci->ed_controltail; + if (!ohci->ed_controltail && !ohci->ed_rm_list[0] && + !ohci->ed_rm_list[1] && !ohci->sleeping) { + ohci->hc_control |= OHCI_CTRL_CLE; + writel (ohci->hc_control, &ohci->regs->control); + } + ohci->ed_controltail = edi; + break; + + case PIPE_BULK: + ed->hwNextED = 0; + if (ohci->ed_bulktail == NULL) { + writel ((long)ed, &ohci->regs->ed_bulkhead); + } else { + ohci->ed_bulktail->hwNextED = m32_swap (ed); + } + ed->ed_prev = ohci->ed_bulktail; + if (!ohci->ed_bulktail && !ohci->ed_rm_list[0] && + !ohci->ed_rm_list[1] && !ohci->sleeping) { + ohci->hc_control |= OHCI_CTRL_BLE; + writel (ohci->hc_control, &ohci->regs->control); + } + ohci->ed_bulktail = edi; + break; + } + return 0; +} + +/*-------------------------------------------------------------------------*/ + +/* unlink an ed from one of the HC chains. + * just the link to the ed is unlinked. + * the link from the ed still points to another operational ed or 0 + * so the HC can eventually finish the processing of the unlinked ed */ + +static int ep_unlink (ohci_t *ohci, ed_t *ed) +{ + ed->hwINFO |= m32_swap (OHCI_ED_SKIP); + + switch (ed->type) { + case PIPE_CONTROL: + if (ed->ed_prev == NULL) { + if (!ed->hwNextED) { + ohci->hc_control &= ~OHCI_CTRL_CLE; + writel (ohci->hc_control, &ohci->regs->control); + } + writel (m32_swap (*((__u32 *)&ed->hwNextED)), &ohci->regs->ed_controlhead); + } else { + ed->ed_prev->hwNextED = ed->hwNextED; + } + if (ohci->ed_controltail == ed) { + ohci->ed_controltail = ed->ed_prev; + } else { + ((ed_t *)m32_swap (*((__u32 *)&ed->hwNextED)))->ed_prev = ed->ed_prev; + } + break; + + case PIPE_BULK: + if (ed->ed_prev == NULL) { + if (!ed->hwNextED) { + ohci->hc_control &= ~OHCI_CTRL_BLE; + writel (ohci->hc_control, &ohci->regs->control); + } + writel (m32_swap (*((__u32 *)&ed->hwNextED)), &ohci->regs->ed_bulkhead); + } else { + ed->ed_prev->hwNextED = ed->hwNextED; + } + if (ohci->ed_bulktail == ed) { + ohci->ed_bulktail = ed->ed_prev; + } else { + ((ed_t *)m32_swap (*((__u32 *)&ed->hwNextED)))->ed_prev = ed->ed_prev; + } + break; + } + ed->state = ED_UNLINK; + return 0; +} + + +/*-------------------------------------------------------------------------*/ + +/* add/reinit an endpoint; this should be done once at the usb_set_configuration command, + * but the USB stack is a little bit stateless so we do it at every transaction + * if the state of the ed is ED_NEW then a dummy td is added and the state is changed to ED_UNLINK + * in all other cases the state is left unchanged + * the ed info fields are setted anyway even though most of them should not change */ + +static ed_t * ep_add_ed (struct usb_device *usb_dev, unsigned long pipe) +{ + td_t *td; + ed_t *ed_ret; + volatile ed_t *ed; + + ed = ed_ret = &ohci_dev.ed[(usb_pipeendpoint (pipe) << 1) | + (usb_pipecontrol (pipe)? 0: usb_pipeout (pipe))]; + + if ((ed->state & ED_DEL) || (ed->state & ED_URB_DEL)) { + err("ep_add_ed: pending delete"); + /* pending delete request */ + return NULL; + } + + if (ed->state == ED_NEW) { + ed->hwINFO = m32_swap (OHCI_ED_SKIP); /* skip ed */ + /* dummy td; end of td list for ed */ + td = td_alloc (usb_dev); + ed->hwTailP = m32_swap (td); + ed->hwHeadP = ed->hwTailP; + ed->state = ED_UNLINK; + ed->type = usb_pipetype (pipe); + ohci_dev.ed_cnt++; + } + + ed->hwINFO = m32_swap (usb_pipedevice (pipe) + | usb_pipeendpoint (pipe) << 7 + | (usb_pipeisoc (pipe)? 0x8000: 0) + | (usb_pipecontrol (pipe)? 0: (usb_pipeout (pipe)? 0x800: 0x1000)) + | usb_pipeslow (pipe) << 13 + | usb_maxpacket (usb_dev, pipe) << 16); + + return ed_ret; +} + +/*-------------------------------------------------------------------------* + * TD handling functions + *-------------------------------------------------------------------------*/ + +/* enqueue next TD for this URB (OHCI spec 5.2.8.2) */ + +static void td_fill (ohci_t *ohci, unsigned int info, + void *data, int len, + struct usb_device *dev, int index, urb_priv_t *urb_priv) +{ + volatile td_t *td, *td_pt; +#ifdef OHCI_FILL_TRACE + int i; +#endif + + if (index > urb_priv->length) { + err("index > length"); + return; + } + /* use this td as the next dummy */ + td_pt = urb_priv->td [index]; + td_pt->hwNextTD = 0; + + /* fill the old dummy TD */ + td = urb_priv->td [index] = (td_t *)(m32_swap (urb_priv->ed->hwTailP) & ~0xf); + + td->ed = urb_priv->ed; + td->next_dl_td = NULL; + td->index = index; + td->data = (__u32)data; +#ifdef OHCI_FILL_TRACE + if (1 || ((usb_pipetype(urb_priv->pipe) == PIPE_BULK) && usb_pipeout(urb_priv->pipe))) { + for (i = 0; i < len; i++) + printf("td->data[%d] %#2x\n",i, ((unsigned char *)(td->data+0x80000000))[i]); + } +#endif + if (!len) + data = 0; + + td->hwINFO = m32_swap (info); + td->hwCBP = m32_swap (data); + if (data) + td->hwBE = m32_swap (data + len - 1); + else + td->hwBE = 0; + td->hwNextTD = m32_swap (td_pt); + td->hwPSW [0] = m16_swap (((__u32)data & 0x0FFF) | 0xE000); + + /* append to queue */ + td->ed->hwTailP = td->hwNextTD; +} + +/*-------------------------------------------------------------------------*/ + +/* prepare all TDs of a transfer */ + +#define kseg_to_phys(x) ((void *)((__u32)(x) - 0x80000000)) + +static void td_submit_job (struct usb_device *dev, unsigned long pipe, void *buffer, + int transfer_len, struct devrequest *setup, urb_priv_t *urb, int interval) +{ + ohci_t *ohci = &gohci; + int data_len = transfer_len; + void *data; + int cnt = 0; + __u32 info = 0; + unsigned int toggle = 0; + + /* OHCI handles the DATA-toggles itself, we just use the USB-toggle bits for reseting */ + if(usb_gettoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe))) { + toggle = TD_T_TOGGLE; + } else { + toggle = TD_T_DATA0; + usb_settoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe), 1); + } + urb->td_cnt = 0; + if (data_len) + data = kseg_to_phys(buffer); + else + data = 0; + + switch (usb_pipetype (pipe)) { + case PIPE_BULK: + info = usb_pipeout (pipe)? + TD_CC | TD_DP_OUT : TD_CC | TD_DP_IN ; + while(data_len > 4096) { + td_fill (ohci, info | (cnt? TD_T_TOGGLE:toggle), data, 4096, dev, cnt, urb); + data += 4096; data_len -= 4096; cnt++; + } + info = usb_pipeout (pipe)? + TD_CC | TD_DP_OUT : TD_CC | TD_R | TD_DP_IN ; + td_fill (ohci, info | (cnt? TD_T_TOGGLE:toggle), data, data_len, dev, cnt, urb); + cnt++; + + if (!ohci->sleeping) + writel (OHCI_BLF, &ohci->regs->cmdstatus); /* start bulk list */ + break; + + case PIPE_CONTROL: + info = TD_CC | TD_DP_SETUP | TD_T_DATA0; + td_fill (ohci, info, kseg_to_phys(setup), 8, dev, cnt++, urb); + if (data_len > 0) { + info = usb_pipeout (pipe)? + TD_CC | TD_R | TD_DP_OUT | TD_T_DATA1 : TD_CC | TD_R | TD_DP_IN | TD_T_DATA1; + /* NOTE: mishandles transfers >8K, some >4K */ + td_fill (ohci, info, data, data_len, dev, cnt++, urb); + } + info = usb_pipeout (pipe)? + TD_CC | TD_DP_IN | TD_T_DATA1: TD_CC | TD_DP_OUT | TD_T_DATA1; + td_fill (ohci, info, data, 0, dev, cnt++, urb); + if (!ohci->sleeping) + writel (OHCI_CLF, &ohci->regs->cmdstatus); /* start Control list */ + break; + } + if (urb->length != cnt) + dbg("TD LENGTH %d != CNT %d", urb->length, cnt); +} + +/*-------------------------------------------------------------------------* + * Done List handling functions + *-------------------------------------------------------------------------*/ + + +/* calculate the transfer length and update the urb */ + +static void dl_transfer_length(td_t * td) +{ + __u32 tdINFO, tdBE, tdCBP; + urb_priv_t *lurb_priv = &urb_priv; + + tdINFO = m32_swap (td->hwINFO); + tdBE = m32_swap (td->hwBE); + tdCBP = m32_swap (td->hwCBP); + + + if (!(usb_pipetype (lurb_priv->pipe) == PIPE_CONTROL && + ((td->index == 0) || (td->index == lurb_priv->length - 1)))) { + if (tdBE != 0) { + if (td->hwCBP == 0) + lurb_priv->actual_length += tdBE - td->data + 1; + else + lurb_priv->actual_length += tdCBP - td->data; + } + } +} + +/*-------------------------------------------------------------------------*/ + +/* replies to the request have to be on a FIFO basis so + * we reverse the reversed done-list */ + +static td_t * dl_reverse_done_list (ohci_t *ohci) +{ + __u32 td_list_hc; + td_t *td_rev = NULL; + td_t *td_list = NULL; + urb_priv_t *lurb_priv = NULL; + + td_list_hc = m32_swap (ohci->hcca->done_head) & 0xfffffff0; + ohci->hcca->done_head = 0; + + while (td_list_hc) { + td_list = (td_t *)td_list_hc; + + if (TD_CC_GET (m32_swap (td_list->hwINFO))) { + lurb_priv = &urb_priv; + dbg(" USB-error/status: %x : %p", + TD_CC_GET (m32_swap (td_list->hwINFO)), td_list); + if (td_list->ed->hwHeadP & m32_swap (0x1)) { + if (lurb_priv && ((td_list->index + 1) < lurb_priv->length)) { + td_list->ed->hwHeadP = + (lurb_priv->td[lurb_priv->length - 1]->hwNextTD & m32_swap (0xfffffff0)) | + (td_list->ed->hwHeadP & m32_swap (0x2)); + lurb_priv->td_cnt += lurb_priv->length - td_list->index - 1; + } else + td_list->ed->hwHeadP &= m32_swap (0xfffffff2); + } + } + + td_list->next_dl_td = td_rev; + td_rev = td_list; + td_list_hc = m32_swap (td_list->hwNextTD) & 0xfffffff0; + } + return td_list; +} + +/*-------------------------------------------------------------------------*/ + +/* td done list */ +static int dl_done_list (ohci_t *ohci, td_t *td_list) +{ + td_t *td_list_next = NULL; + ed_t *ed; + int cc = 0; + int stat = 0; + /* urb_t *urb; */ + urb_priv_t *lurb_priv; + __u32 tdINFO, edHeadP, edTailP; + + while (td_list) { + td_list_next = td_list->next_dl_td; + + lurb_priv = &urb_priv; + tdINFO = m32_swap (td_list->hwINFO); + + ed = td_list->ed; + + dl_transfer_length(td_list); + + /* error code of transfer */ + cc = TD_CC_GET (tdINFO); + if (cc != 0) { + dbg("ConditionCode %#x", cc); + stat = cc_to_error[cc]; + } + + if (ed->state != ED_NEW) { + edHeadP = m32_swap (ed->hwHeadP) & 0xfffffff0; + edTailP = m32_swap (ed->hwTailP); + + /* unlink eds if they are not busy */ + if ((edHeadP == edTailP) && (ed->state == ED_OPER)) + ep_unlink (ohci, ed); + } + + td_list = td_list_next; + } + return stat; +} + +/*-------------------------------------------------------------------------* + * Virtual Root Hub + *-------------------------------------------------------------------------*/ + +/* Device descriptor */ +static __u8 root_hub_dev_des[] = +{ + 0x12, /* __u8 bLength; */ + 0x01, /* __u8 bDescriptorType; Device */ + 0x10, /* __u16 bcdUSB; v1.1 */ + 0x01, + 0x09, /* __u8 bDeviceClass; HUB_CLASSCODE */ + 0x00, /* __u8 bDeviceSubClass; */ + 0x00, /* __u8 bDeviceProtocol; */ + 0x08, /* __u8 bMaxPacketSize0; 8 Bytes */ + 0x00, /* __u16 idVendor; */ + 0x00, + 0x00, /* __u16 idProduct; */ + 0x00, + 0x00, /* __u16 bcdDevice; */ + 0x00, + 0x00, /* __u8 iManufacturer; */ + 0x01, /* __u8 iProduct; */ + 0x00, /* __u8 iSerialNumber; */ + 0x01 /* __u8 bNumConfigurations; */ +}; + + +/* Configuration descriptor */ +static __u8 root_hub_config_des[] = +{ + 0x09, /* __u8 bLength; */ + 0x02, /* __u8 bDescriptorType; Configuration */ + 0x19, /* __u16 wTotalLength; */ + 0x00, + 0x01, /* __u8 bNumInterfaces; */ + 0x01, /* __u8 bConfigurationValue; */ + 0x00, /* __u8 iConfiguration; */ + 0x40, /* __u8 bmAttributes; + Bit 7: Bus-powered, 6: Self-powered, 5 Remote-wakwup, 4..0: resvd */ + 0x00, /* __u8 MaxPower; */ + + /* interface */ + 0x09, /* __u8 if_bLength; */ + 0x04, /* __u8 if_bDescriptorType; Interface */ + 0x00, /* __u8 if_bInterfaceNumber; */ + 0x00, /* __u8 if_bAlternateSetting; */ + 0x01, /* __u8 if_bNumEndpoints; */ + 0x09, /* __u8 if_bInterfaceClass; HUB_CLASSCODE */ + 0x00, /* __u8 if_bInterfaceSubClass; */ + 0x00, /* __u8 if_bInterfaceProtocol; */ + 0x00, /* __u8 if_iInterface; */ + + /* endpoint */ + 0x07, /* __u8 ep_bLength; */ + 0x05, /* __u8 ep_bDescriptorType; Endpoint */ + 0x81, /* __u8 ep_bEndpointAddress; IN Endpoint 1 */ + 0x03, /* __u8 ep_bmAttributes; Interrupt */ + 0x02, /* __u16 ep_wMaxPacketSize; ((MAX_ROOT_PORTS + 1) / 8 */ + 0x00, + 0xff /* __u8 ep_bInterval; 255 ms */ +}; + +static unsigned char root_hub_str_index0[] = +{ + 0x04, /* __u8 bLength; */ + 0x03, /* __u8 bDescriptorType; String-descriptor */ + 0x09, /* __u8 lang ID */ + 0x04, /* __u8 lang ID */ +}; + +static unsigned char root_hub_str_index1[] = +{ + 28, /* __u8 bLength; */ + 0x03, /* __u8 bDescriptorType; String-descriptor */ + 'O', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'H', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'C', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'I', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + ' ', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'R', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'o', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'o', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 't', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + ' ', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'H', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'u', /* __u8 Unicode */ + 0, /* __u8 Unicode */ + 'b', /* __u8 Unicode */ + 0, /* __u8 Unicode */ +}; + +/* Hub class-specific descriptor is constructed dynamically */ + + +/*-------------------------------------------------------------------------*/ + +#define OK(x) len = (x); break +#ifdef DEBUG +#define WR_RH_STAT(x) {info("WR:status %#8x", (x));writel((x), &gohci.regs->roothub.status);} +#define WR_RH_PORTSTAT(x) {info("WR:portstatus[%d] %#8x", wIndex-1, (x));writel((x), &gohci.regs->roothub.portstatus[wIndex-1]);} +#else +#define WR_RH_STAT(x) writel((x), &gohci.regs->roothub.status) +#define WR_RH_PORTSTAT(x) writel((x), &gohci.regs->roothub.portstatus[wIndex-1]) +#endif +#define RD_RH_STAT roothub_status(&gohci) +#define RD_RH_PORTSTAT roothub_portstatus(&gohci,wIndex-1) + +/* request to virtual root hub */ + +int rh_check_port_status(ohci_t *controller) +{ + __u32 temp, ndp, i; + int res; + + res = -1; + temp = roothub_a (controller); + ndp = (temp & RH_A_NDP); + for (i = 0; i < ndp; i++) { + temp = roothub_portstatus (controller, i); + /* check for a device disconnect */ + if (((temp & (RH_PS_PESC | RH_PS_CSC)) == + (RH_PS_PESC | RH_PS_CSC)) && + ((temp & RH_PS_CCS) == 0)) { + res = i; + break; + } + } + return res; +} + +static int ohci_submit_rh_msg(struct usb_device *dev, unsigned long pipe, + void *buffer, int transfer_len, struct devrequest *cmd) +{ + void * data = buffer; + int leni = transfer_len; + int len = 0; + int stat = 0; + __u32 datab[4]; + __u8 *data_buf = (__u8 *)datab; + __u16 bmRType_bReq; + __u16 wValue; + __u16 wIndex; + __u16 wLength; + +#ifdef DEBUG +urb_priv.actual_length = 0; +pkt_print(dev, pipe, buffer, transfer_len, cmd, "SUB(rh)", usb_pipein(pipe)); +#else + wait_ms(1); +#endif + if ((pipe & PIPE_INTERRUPT) == PIPE_INTERRUPT) { + info("Root-Hub submit IRQ: NOT implemented"); + return 0; + } + + bmRType_bReq = cmd->requesttype | (cmd->request << 8); + wValue = m16_swap (cmd->value); + wIndex = m16_swap (cmd->index); + wLength = m16_swap (cmd->length); + + info("Root-Hub: adr: %2x cmd(%1x): %08x %04x %04x %04x", + dev->devnum, 8, bmRType_bReq, wValue, wIndex, wLength); + + switch (bmRType_bReq) { + /* Request Destination: + without flags: Device, + RH_INTERFACE: interface, + RH_ENDPOINT: endpoint, + RH_CLASS means HUB here, + RH_OTHER | RH_CLASS almost ever means HUB_PORT here + */ + + case RH_GET_STATUS: + *(__u16 *) data_buf = m16_swap (1); OK (2); + case RH_GET_STATUS | RH_INTERFACE: + *(__u16 *) data_buf = m16_swap (0); OK (2); + case RH_GET_STATUS | RH_ENDPOINT: + *(__u16 *) data_buf = m16_swap (0); OK (2); + case RH_GET_STATUS | RH_CLASS: + *(__u32 *) data_buf = m32_swap ( + RD_RH_STAT & ~(RH_HS_CRWE | RH_HS_DRWE)); + OK (4); + case RH_GET_STATUS | RH_OTHER | RH_CLASS: + *(__u32 *) data_buf = m32_swap (RD_RH_PORTSTAT); OK (4); + + case RH_CLEAR_FEATURE | RH_ENDPOINT: + switch (wValue) { + case (RH_ENDPOINT_STALL): OK (0); + } + break; + + case RH_CLEAR_FEATURE | RH_CLASS: + switch (wValue) { + case RH_C_HUB_LOCAL_POWER: + OK(0); + case (RH_C_HUB_OVER_CURRENT): + WR_RH_STAT(RH_HS_OCIC); OK (0); + } + break; + + case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS: + switch (wValue) { + case (RH_PORT_ENABLE): + WR_RH_PORTSTAT (RH_PS_CCS ); OK (0); + case (RH_PORT_SUSPEND): + WR_RH_PORTSTAT (RH_PS_POCI); OK (0); + case (RH_PORT_POWER): + WR_RH_PORTSTAT (RH_PS_LSDA); OK (0); + case (RH_C_PORT_CONNECTION): + WR_RH_PORTSTAT (RH_PS_CSC ); OK (0); + case (RH_C_PORT_ENABLE): + WR_RH_PORTSTAT (RH_PS_PESC); OK (0); + case (RH_C_PORT_SUSPEND): + WR_RH_PORTSTAT (RH_PS_PSSC); OK (0); + case (RH_C_PORT_OVER_CURRENT): + WR_RH_PORTSTAT (RH_PS_OCIC); OK (0); + case (RH_C_PORT_RESET): + WR_RH_PORTSTAT (RH_PS_PRSC); OK (0); + } + break; + + case RH_SET_FEATURE | RH_OTHER | RH_CLASS: + switch (wValue) { + case (RH_PORT_SUSPEND): + WR_RH_PORTSTAT (RH_PS_PSS ); OK (0); + case (RH_PORT_RESET): /* BUG IN HUP CODE *********/ + if (RD_RH_PORTSTAT & RH_PS_CCS) + WR_RH_PORTSTAT (RH_PS_PRS); + OK (0); + case (RH_PORT_POWER): + WR_RH_PORTSTAT (RH_PS_PPS ); OK (0); + case (RH_PORT_ENABLE): /* BUG IN HUP CODE *********/ + if (RD_RH_PORTSTAT & RH_PS_CCS) + WR_RH_PORTSTAT (RH_PS_PES ); + OK (0); + } + break; + + case RH_SET_ADDRESS: gohci.rh.devnum = wValue; OK(0); + + case RH_GET_DESCRIPTOR: + switch ((wValue & 0xff00) >> 8) { + case (0x01): /* device descriptor */ + len = min_t(unsigned int, + leni, + min_t(unsigned int, + sizeof (root_hub_dev_des), + wLength)); + data_buf = root_hub_dev_des; OK(len); + case (0x02): /* configuration descriptor */ + len = min_t(unsigned int, + leni, + min_t(unsigned int, + sizeof (root_hub_config_des), + wLength)); + data_buf = root_hub_config_des; OK(len); + case (0x03): /* string descriptors */ + if(wValue==0x0300) { + len = min_t(unsigned int, + leni, + min_t(unsigned int, + sizeof (root_hub_str_index0), + wLength)); + data_buf = root_hub_str_index0; + OK(len); + } + if(wValue==0x0301) { + len = min_t(unsigned int, + leni, + min_t(unsigned int, + sizeof (root_hub_str_index1), + wLength)); + data_buf = root_hub_str_index1; + OK(len); + } + default: + stat = USB_ST_STALLED; + } + break; + + case RH_GET_DESCRIPTOR | RH_CLASS: + { + __u32 temp = roothub_a (&gohci); + + data_buf [0] = 9; /* min length; */ + data_buf [1] = 0x29; + data_buf [2] = temp & RH_A_NDP; + data_buf [3] = 0; + if (temp & RH_A_PSM) /* per-port power switching? */ + data_buf [3] |= 0x1; + if (temp & RH_A_NOCP) /* no overcurrent reporting? */ + data_buf [3] |= 0x10; + else if (temp & RH_A_OCPM) /* per-port overcurrent reporting? */ + data_buf [3] |= 0x8; + + /* corresponds to data_buf[4-7] */ + datab [1] = 0; + data_buf [5] = (temp & RH_A_POTPGT) >> 24; + temp = roothub_b (&gohci); + data_buf [7] = temp & RH_B_DR; + if (data_buf [2] < 7) { + data_buf [8] = 0xff; + } else { + data_buf [0] += 2; + data_buf [8] = (temp & RH_B_DR) >> 8; + data_buf [10] = data_buf [9] = 0xff; + } + + len = min_t(unsigned int, leni, + min_t(unsigned int, data_buf [0], wLength)); + OK (len); + } + + case RH_GET_CONFIGURATION: *(__u8 *) data_buf = 0x01; OK (1); + + case RH_SET_CONFIGURATION: WR_RH_STAT (0x10000); OK (0); + + default: + dbg ("unsupported root hub command"); + stat = USB_ST_STALLED; + } + +#ifdef DEBUG + ohci_dump_roothub (&gohci, 1); +#else + wait_ms(1); +#endif + + len = min_t(int, len, leni); + if (data != data_buf) + memcpy (data, data_buf, len); + dev->act_len = len; + dev->status = stat; + +#ifdef DEBUG + if (transfer_len) + urb_priv.actual_length = transfer_len; + pkt_print(dev, pipe, buffer, transfer_len, cmd, "RET(rh)", 0/*usb_pipein(pipe)*/); +#else + wait_ms(1); +#endif + + return stat; +} + +/*-------------------------------------------------------------------------*/ + +/* common code for handling submit messages - used for all but root hub */ +/* accesses. */ +int submit_common_msg(struct usb_device *dev, unsigned long pipe, void *buffer, + int transfer_len, struct devrequest *setup, int interval) +{ + int stat = 0; + int maxsize = usb_maxpacket(dev, pipe); + int timeout; + + /* device pulled? Shortcut the action. */ + if (devgone == dev) { + dev->status = USB_ST_CRC_ERR; + return 0; + } + +#ifdef DEBUG + urb_priv.actual_length = 0; + pkt_print(dev, pipe, buffer, transfer_len, setup, "SUB", usb_pipein(pipe)); +#else + wait_ms(1); +#endif + if (!maxsize) { + err("submit_common_message: pipesize for pipe %lx is zero", + pipe); + return -1; + } + + if (sohci_submit_job(dev, pipe, buffer, transfer_len, setup, interval) < 0) { + err("sohci_submit_job failed"); + return -1; + } + + wait_ms(10); + /* ohci_dump_status(&gohci); */ + + /* allow more time for a BULK device to react - some are slow */ +#define BULK_TO 5000 /* timeout in milliseconds */ + if (usb_pipetype (pipe) == PIPE_BULK) + timeout = BULK_TO; + else + timeout = 100; + + timeout *= 4; + /* wait for it to complete */ + for (;;) { + /* check whether the controller is done */ + stat = hc_interrupt(); + if (stat < 0) { + stat = USB_ST_CRC_ERR; + break; + } + if (stat >= 0 && stat != 0xff) { + /* 0xff is returned for an SF-interrupt */ + break; + } + if (--timeout) { + udelay(250); /* wait_ms(1); */ + } else { + err("CTL:TIMEOUT "); + stat = USB_ST_CRC_ERR; + break; + } + } + /* we got an Root Hub Status Change interrupt */ + if (got_rhsc) { +#ifdef DEBUG + ohci_dump_roothub (&gohci, 1); +#endif + got_rhsc = 0; + /* abuse timeout */ + timeout = rh_check_port_status(&gohci); + if (timeout >= 0) { +#if 0 /* this does nothing useful, but leave it here in case that changes */ + /* the called routine adds 1 to the passed value */ + usb_hub_port_connect_change(gohci.rh.dev, timeout - 1); +#endif + /* + * XXX + * This is potentially dangerous because it assumes + * that only one device is ever plugged in! + */ + devgone = dev; + } + } + + dev->status = stat; + dev->act_len = transfer_len; + +#ifdef DEBUG + pkt_print(dev, pipe, buffer, transfer_len, setup, "RET(ctlr)", usb_pipein(pipe)); +#else + wait_ms(1); +#endif + + /* free TDs in urb_priv */ + urb_free_priv (&urb_priv); + return 0; +} + +/* submit routines called from usb.c */ +int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer, + int transfer_len) +{ + info("submit_bulk_msg"); + return submit_common_msg(dev, pipe, buffer, transfer_len, NULL, 0); +} + +int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer, + int transfer_len, struct devrequest *setup) +{ + int maxsize = usb_maxpacket(dev, pipe); + + info("submit_control_msg"); +#ifdef DEBUG + urb_priv.actual_length = 0; + pkt_print(dev, pipe, buffer, transfer_len, setup, "SUB", usb_pipein(pipe)); +#else + wait_ms(1); +#endif + if (!maxsize) { + err("submit_control_message: pipesize for pipe %lx is zero", + pipe); + return -1; + } + if (((pipe >> 8) & 0x7f) == gohci.rh.devnum) { + gohci.rh.dev = dev; + /* root hub - redirect */ + return ohci_submit_rh_msg(dev, pipe, buffer, transfer_len, + setup); + } + + return submit_common_msg(dev, pipe, buffer, transfer_len, setup, 0); +} + +int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer, + int transfer_len, int interval) +{ + info("submit_int_msg"); + return -1; +} + +/*-------------------------------------------------------------------------* + * HC functions + *-------------------------------------------------------------------------*/ + +/* reset the HC and BUS */ + +static int hc_reset (ohci_t *ohci) +{ + int timeout = 30; + int smm_timeout = 50; /* 0,5 sec */ + + if (readl (&ohci->regs->control) & OHCI_CTRL_IR) { /* SMM owns the HC */ + writel (OHCI_OCR, &ohci->regs->cmdstatus); /* request ownership */ + info("USB HC TakeOver from SMM"); + while (readl (&ohci->regs->control) & OHCI_CTRL_IR) { + wait_ms (10); + if (--smm_timeout == 0) { + err("USB HC TakeOver failed!"); + return -1; + } + } + } + + /* Disable HC interrupts */ + writel (OHCI_INTR_MIE, &ohci->regs->intrdisable); + + dbg("USB HC reset_hc usb-%s: ctrl = 0x%X ;", + ohci->slot_name, + readl (&ohci->regs->control)); + + /* Reset USB (needed by some controllers) */ + writel (0, &ohci->regs->control); + + /* HC Reset requires max 10 us delay */ + writel (OHCI_HCR, &ohci->regs->cmdstatus); + while ((readl (&ohci->regs->cmdstatus) & OHCI_HCR) != 0) { + if (--timeout == 0) { + err("USB HC reset timed out!"); + return -1; + } + udelay (1); + } + return 0; +} + +/*-------------------------------------------------------------------------*/ + +/* Start an OHCI controller, set the BUS operational + * enable interrupts + * connect the virtual root hub */ + +static int hc_start (ohci_t * ohci) +{ + __u32 mask; + unsigned int fminterval; + + ohci->disabled = 1; + + /* Tell the controller where the control and bulk lists are + * The lists are empty now. */ + + writel (0, &ohci->regs->ed_controlhead); + writel (0, &ohci->regs->ed_bulkhead); + + writel ((__u32)ohci->hcca, &ohci->regs->hcca); /* a reset clears this */ + + fminterval = 0x2edf; + writel ((fminterval * 9) / 10, &ohci->regs->periodicstart); + fminterval |= ((((fminterval - 210) * 6) / 7) << 16); + writel (fminterval, &ohci->regs->fminterval); + writel (0x628, &ohci->regs->lsthresh); + + /* start controller operations */ + ohci->hc_control = OHCI_CONTROL_INIT | OHCI_USB_OPER; + ohci->disabled = 0; + writel (ohci->hc_control, &ohci->regs->control); + + /* disable all interrupts */ + mask = (OHCI_INTR_SO | OHCI_INTR_WDH | OHCI_INTR_SF | OHCI_INTR_RD | + OHCI_INTR_UE | OHCI_INTR_FNO | OHCI_INTR_RHSC | + OHCI_INTR_OC | OHCI_INTR_MIE); + writel (mask, &ohci->regs->intrdisable); + /* clear all interrupts */ + mask &= ~OHCI_INTR_MIE; + writel (mask, &ohci->regs->intrstatus); + /* Choose the interrupts we care about now - but w/o MIE */ + mask = OHCI_INTR_RHSC | OHCI_INTR_UE | OHCI_INTR_WDH | OHCI_INTR_SO; + writel (mask, &ohci->regs->intrenable); + +#ifdef OHCI_USE_NPS + /* required for AMD-756 and some Mac platforms */ + writel ((roothub_a (ohci) | RH_A_NPS) & ~RH_A_PSM, + &ohci->regs->roothub.a); + writel (RH_HS_LPSC, &ohci->regs->roothub.status); +#endif /* OHCI_USE_NPS */ + +#define mdelay(n) ({unsigned long msec=(n); while (msec--) udelay(1000);}) + /* POTPGT delay is bits 24-31, in 2 ms units. */ + mdelay ((roothub_a (ohci) >> 23) & 0x1fe); + + /* connect the virtual root hub */ + ohci->rh.devnum = 0; + + return 0; +} + +/*-------------------------------------------------------------------------*/ + +/* an interrupt happens */ + +static int +hc_interrupt (void) +{ + ohci_t *ohci = &gohci; + struct ohci_regs *regs = ohci->regs; + int ints; + int stat = -1; + + if ((ohci->hcca->done_head != 0) && !(m32_swap (ohci->hcca->done_head) & 0x01)) { + ints = OHCI_INTR_WDH; + } else { + ints = readl (®s->intrstatus); + } + + /* dbg("Interrupt: %x frame: %x", ints, le16_to_cpu (ohci->hcca->frame_no)); */ + + if (ints & OHCI_INTR_RHSC) { + got_rhsc = 1; + } + + if (ints & OHCI_INTR_UE) { + ohci->disabled++; + err ("OHCI Unrecoverable Error, controller usb-%s disabled", + ohci->slot_name); + /* e.g. due to PCI Master/Target Abort */ + +#ifdef DEBUG + ohci_dump (ohci, 1); +#else + wait_ms(1); +#endif + /* FIXME: be optimistic, hope that bug won't repeat often. */ + /* Make some non-interrupt context restart the controller. */ + /* Count and limit the retries though; either hardware or */ + /* software errors can go forever... */ + hc_reset (ohci); + return -1; + } + + if (ints & OHCI_INTR_WDH) { + wait_ms(1); + writel (OHCI_INTR_WDH, ®s->intrdisable); + stat = dl_done_list (&gohci, dl_reverse_done_list (&gohci)); + writel (OHCI_INTR_WDH, ®s->intrenable); + } + + if (ints & OHCI_INTR_SO) { + dbg("USB Schedule overrun\n"); + writel (OHCI_INTR_SO, ®s->intrenable); + stat = -1; + } + + /* FIXME: this assumes SOF (1/ms) interrupts don't get lost... */ + if (ints & OHCI_INTR_SF) { + unsigned int frame = m16_swap (ohci->hcca->frame_no) & 1; + wait_ms(1); + writel (OHCI_INTR_SF, ®s->intrdisable); + if (ohci->ed_rm_list[frame] != NULL) + writel (OHCI_INTR_SF, ®s->intrenable); + stat = 0xff; + } + + writel (ints, ®s->intrstatus); + return stat; +} + +/*-------------------------------------------------------------------------*/ + +/*-------------------------------------------------------------------------*/ + +/* De-allocate all resources.. */ + +static void hc_release_ohci (ohci_t *ohci) +{ + dbg ("USB HC release ohci usb-%s", ohci->slot_name); + + if (!ohci->disabled) + hc_reset (ohci); +} + +/*-------------------------------------------------------------------------*/ + +#define __read_32bit_c0_register(source, sel) \ +({ int __res; \ + if (sel == 0) \ + __asm__ __volatile__( \ + "mfc0\t%0, " #source "\n\t" \ + : "=r" (__res)); \ + else \ + __asm__ __volatile__( \ + ".set\tmips32\n\t" \ + "mfc0\t%0, " #source ", " #sel "\n\t" \ + ".set\tmips0\n\t" \ + : "=r" (__res)); \ + __res; \ +}) + +#define read_c0_prid() __read_32bit_c0_register($15, 0) + +/* + * low level initalisation routine, called from usb.c + */ +static char ohci_inited = 0; + +int usb_lowlevel_init(void) +{ + u32 pin_func; + u32 sys_freqctrl, sys_clksrc; + u32 prid = read_c0_prid(); + + dbg("in usb_lowlevel_init\n"); + + /* zero and disable FREQ2 */ + sys_freqctrl = au_readl(SYS_FREQCTRL0); + sys_freqctrl &= ~0xFFF00000; + au_writel(sys_freqctrl, SYS_FREQCTRL0); + + /* zero and disable USBH/USBD clocks */ + sys_clksrc = au_readl(SYS_CLKSRC); + sys_clksrc &= ~0x00007FE0; + au_writel(sys_clksrc, SYS_CLKSRC); + + sys_freqctrl = au_readl(SYS_FREQCTRL0); + sys_freqctrl &= ~0xFFF00000; + + sys_clksrc = au_readl(SYS_CLKSRC); + sys_clksrc &= ~0x00007FE0; + + switch (prid & 0x000000FF) { + case 0x00: /* DA */ + case 0x01: /* HA */ + case 0x02: /* HB */ + /* CPU core freq to 48MHz to slow it way down... */ + au_writel(4, SYS_CPUPLL); + + /* + * Setup 48MHz FREQ2 from CPUPLL for USB Host + */ + /* FRDIV2=3 -> div by 8 of 384MHz -> 48MHz */ + sys_freqctrl |= ((3<<22) | (1<<21) | (0<<20)); + au_writel(sys_freqctrl, SYS_FREQCTRL0); + + /* CPU core freq to 384MHz */ + au_writel(0x20, SYS_CPUPLL); + + printf("Au1000: 48MHz OHCI workaround enabled\n"); + break; + + default: /* HC and newer */ + /* FREQ2 = aux/2 = 48 MHz */ + sys_freqctrl |= ((0<<22) | (1<<21) | (1<<20)); + au_writel(sys_freqctrl, SYS_FREQCTRL0); + break; + } + + /* + * Route 48MHz FREQ2 into USB Host and/or Device + */ + sys_clksrc |= ((4<<12) | (0<<11) | (0<<10)); + au_writel(sys_clksrc, SYS_CLKSRC); + + /* configure pins GPIO[14:9] as GPIO */ + pin_func = au_readl(SYS_PINFUNC) & (u32)(~0x8080); + + au_writel(pin_func, SYS_PINFUNC); + au_writel(0x2800, SYS_TRIOUTCLR); + au_writel(0x0030, SYS_OUTPUTCLR); + + dbg("OHCI board setup complete\n"); + + /* enable host controller */ + au_writel(USBH_ENABLE_CE, USB_HOST_CONFIG); + udelay(1000); + au_writel(USBH_ENABLE_INIT, USB_HOST_CONFIG); + udelay(1000); + + /* wait for reset complete (read register twice; see au1500 errata) */ + while (au_readl(USB_HOST_CONFIG), + !(au_readl(USB_HOST_CONFIG) & USBH_ENABLE_RD)) + udelay(1000); + + dbg("OHCI clock running\n"); + + memset (&gohci, 0, sizeof (ohci_t)); + memset (&urb_priv, 0, sizeof (urb_priv_t)); + + /* align the storage */ + if ((__u32)&ghcca[0] & 0xff) { + err("HCCA not aligned!!"); + return -1; + } + phcca = &ghcca[0]; + info("aligned ghcca %p", phcca); + memset(&ohci_dev, 0, sizeof(struct ohci_device)); + if ((__u32)&ohci_dev.ed[0] & 0x7) { + err("EDs not aligned!!"); + return -1; + } + memset(gtd, 0, sizeof(td_t) * (NUM_TD + 1)); + if ((__u32)gtd & 0x7) { + err("TDs not aligned!!"); + return -1; + } + ptd = gtd; + gohci.hcca = phcca; + memset (phcca, 0, sizeof (struct ohci_hcca)); + + gohci.disabled = 1; + gohci.sleeping = 0; + gohci.irq = -1; + gohci.regs = (struct ohci_regs *)(USB_OHCI_BASE | 0xA0000000); + + gohci.flags = 0; + gohci.slot_name = "au1x00"; + + dbg("OHCI revision: 0x%08x\n" + " RH: a: 0x%08x b: 0x%08x\n", + readl(&gohci.regs->revision), + readl(&gohci.regs->roothub.a), readl(&gohci.regs->roothub.b)); + + if (hc_reset (&gohci) < 0) + goto errout; + + /* FIXME this is a second HC reset; why?? */ + writel (gohci.hc_control = OHCI_USB_RESET, &gohci.regs->control); + wait_ms (10); + + if (hc_start (&gohci) < 0) + goto errout; + +#ifdef DEBUG + ohci_dump (&gohci, 1); +#else + wait_ms(1); +#endif + ohci_inited = 1; + return 0; + + errout: + err("OHCI initialization error\n"); + hc_release_ohci (&gohci); + /* Initialization failed */ + au_writel(readl(USB_HOST_CONFIG) & ~USBH_ENABLE_CE, USB_HOST_CONFIG); + return -1; +} + +int usb_lowlevel_stop(void) +{ + /* this gets called really early - before the controller has */ + /* even been initialized! */ + if (!ohci_inited) + return 0; + /* TODO release any interrupts, etc. */ + /* call hc_release_ohci() here ? */ + hc_reset (&gohci); + /* may not want to do this */ + /* Disable clock */ + au_writel(readl(USB_HOST_CONFIG) & ~USBH_ENABLE_CE, USB_HOST_CONFIG); + return 0; +} + +#endif /* CONFIG_USB_OHCI */ diff --git a/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/au1x00_usb_ohci.h b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/au1x00_usb_ohci.h new file mode 100644 index 000000000..4ef06ffde --- /dev/null +++ b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/au1x00_usb_ohci.h @@ -0,0 +1,416 @@ +/* + * URB OHCI HCD (Host Controller Driver) for USB. + * + * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at> + * (C) Copyright 2000-2001 David Brownell <dbrownell@users.sourceforge.net> + * + * usb-ohci.h + */ + + +static int cc_to_error[16] = { + +/* mapping of the OHCI CC status to error codes */ + /* No Error */ 0, + /* CRC Error */ USB_ST_CRC_ERR, + /* Bit Stuff */ USB_ST_BIT_ERR, + /* Data Togg */ USB_ST_CRC_ERR, + /* Stall */ USB_ST_STALLED, + /* DevNotResp */ -1, + /* PIDCheck */ USB_ST_BIT_ERR, + /* UnExpPID */ USB_ST_BIT_ERR, + /* DataOver */ USB_ST_BUF_ERR, + /* DataUnder */ USB_ST_BUF_ERR, + /* reservd */ -1, + /* reservd */ -1, + /* BufferOver */ USB_ST_BUF_ERR, + /* BuffUnder */ USB_ST_BUF_ERR, + /* Not Access */ -1, + /* Not Access */ -1 +}; + +/* ED States */ + +#define ED_NEW 0x00 +#define ED_UNLINK 0x01 +#define ED_OPER 0x02 +#define ED_DEL 0x04 +#define ED_URB_DEL 0x08 + +/* usb_ohci_ed */ +struct ed { + __u32 hwINFO; + __u32 hwTailP; + __u32 hwHeadP; + __u32 hwNextED; + + struct ed *ed_prev; + __u8 int_period; + __u8 int_branch; + __u8 int_load; + __u8 int_interval; + __u8 state; + __u8 type; + __u16 last_iso; + struct ed *ed_rm_list; + + struct usb_device *usb_dev; + __u32 unused[3]; +} __attribute((aligned(16))); +typedef struct ed ed_t; + + +/* TD info field */ +#define TD_CC 0xf0000000 +#define TD_CC_GET(td_p) ((td_p >>28) & 0x0f) +#define TD_CC_SET(td_p, cc) (td_p) = ((td_p) & 0x0fffffff) | (((cc) & 0x0f) << 28) +#define TD_EC 0x0C000000 +#define TD_T 0x03000000 +#define TD_T_DATA0 0x02000000 +#define TD_T_DATA1 0x03000000 +#define TD_T_TOGGLE 0x00000000 +#define TD_R 0x00040000 +#define TD_DI 0x00E00000 +#define TD_DI_SET(X) (((X) & 0x07)<< 21) +#define TD_DP 0x00180000 +#define TD_DP_SETUP 0x00000000 +#define TD_DP_IN 0x00100000 +#define TD_DP_OUT 0x00080000 + +#define TD_ISO 0x00010000 +#define TD_DEL 0x00020000 + +/* CC Codes */ +#define TD_CC_NOERROR 0x00 +#define TD_CC_CRC 0x01 +#define TD_CC_BITSTUFFING 0x02 +#define TD_CC_DATATOGGLEM 0x03 +#define TD_CC_STALL 0x04 +#define TD_DEVNOTRESP 0x05 +#define TD_PIDCHECKFAIL 0x06 +#define TD_UNEXPECTEDPID 0x07 +#define TD_DATAOVERRUN 0x08 +#define TD_DATAUNDERRUN 0x09 +#define TD_BUFFEROVERRUN 0x0C +#define TD_BUFFERUNDERRUN 0x0D +#define TD_NOTACCESSED 0x0F + + +#define MAXPSW 1 + +struct td { + __u32 hwINFO; + __u32 hwCBP; /* Current Buffer Pointer */ + __u32 hwNextTD; /* Next TD Pointer */ + __u32 hwBE; /* Memory Buffer End Pointer */ + + __u16 hwPSW[MAXPSW]; + __u8 unused; + __u8 index; + struct ed *ed; + struct td *next_dl_td; + struct usb_device *usb_dev; + int transfer_len; + __u32 data; + + __u32 unused2[2]; +} __attribute((aligned(32))); +typedef struct td td_t; + +#define OHCI_ED_SKIP (1 << 14) + +/* + * The HCCA (Host Controller Communications Area) is a 256 byte + * structure defined in the OHCI spec. that the host controller is + * told the base address of. It must be 256-byte aligned. + */ + +#define NUM_INTS 32 /* part of the OHCI standard */ +struct ohci_hcca { + __u32 int_table[NUM_INTS]; /* Interrupt ED table */ + __u16 frame_no; /* current frame number */ + __u16 pad1; /* set to 0 on each frame_no change */ + __u32 done_head; /* info returned for an interrupt */ + u8 reserved_for_hc[116]; +} __attribute((aligned(256))); + + +/* + * Maximum number of root hub ports. + */ +#define MAX_ROOT_PORTS 15 /* maximum OHCI root hub ports */ + +/* + * This is the structure of the OHCI controller's memory mapped I/O + * region. This is Memory Mapped I/O. You must use the readl() and + * writel() macros defined in asm/io.h to access these!! + */ +struct ohci_regs { + /* control and status registers */ + __u32 revision; + __u32 control; + __u32 cmdstatus; + __u32 intrstatus; + __u32 intrenable; + __u32 intrdisable; + /* memory pointers */ + __u32 hcca; + __u32 ed_periodcurrent; + __u32 ed_controlhead; + __u32 ed_controlcurrent; + __u32 ed_bulkhead; + __u32 ed_bulkcurrent; + __u32 donehead; + /* frame counters */ + __u32 fminterval; + __u32 fmremaining; + __u32 fmnumber; + __u32 periodicstart; + __u32 lsthresh; + /* Root hub ports */ + struct ohci_roothub_regs { + __u32 a; + __u32 b; + __u32 status; + __u32 portstatus[MAX_ROOT_PORTS]; + } roothub; +} __attribute((aligned(32))); + + +/* OHCI CONTROL AND STATUS REGISTER MASKS */ + +/* + * HcControl (control) register masks + */ +#define OHCI_CTRL_CBSR (3 << 0) /* control/bulk service ratio */ +#define OHCI_CTRL_PLE (1 << 2) /* periodic list enable */ +#define OHCI_CTRL_IE (1 << 3) /* isochronous enable */ +#define OHCI_CTRL_CLE (1 << 4) /* control list enable */ +#define OHCI_CTRL_BLE (1 << 5) /* bulk list enable */ +#define OHCI_CTRL_HCFS (3 << 6) /* host controller functional state */ +#define OHCI_CTRL_IR (1 << 8) /* interrupt routing */ +#define OHCI_CTRL_RWC (1 << 9) /* remote wakeup connected */ +#define OHCI_CTRL_RWE (1 << 10) /* remote wakeup enable */ + +/* pre-shifted values for HCFS */ +# define OHCI_USB_RESET (0 << 6) +# define OHCI_USB_RESUME (1 << 6) +# define OHCI_USB_OPER (2 << 6) +# define OHCI_USB_SUSPEND (3 << 6) + +/* + * HcCommandStatus (cmdstatus) register masks + */ +#define OHCI_HCR (1 << 0) /* host controller reset */ +#define OHCI_CLF (1 << 1) /* control list filled */ +#define OHCI_BLF (1 << 2) /* bulk list filled */ +#define OHCI_OCR (1 << 3) /* ownership change request */ +#define OHCI_SOC (3 << 16) /* scheduling overrun count */ + +/* + * masks used with interrupt registers: + * HcInterruptStatus (intrstatus) + * HcInterruptEnable (intrenable) + * HcInterruptDisable (intrdisable) + */ +#define OHCI_INTR_SO (1 << 0) /* scheduling overrun */ +#define OHCI_INTR_WDH (1 << 1) /* writeback of done_head */ +#define OHCI_INTR_SF (1 << 2) /* start frame */ +#define OHCI_INTR_RD (1 << 3) /* resume detect */ +#define OHCI_INTR_UE (1 << 4) /* unrecoverable error */ +#define OHCI_INTR_FNO (1 << 5) /* frame number overflow */ +#define OHCI_INTR_RHSC (1 << 6) /* root hub status change */ +#define OHCI_INTR_OC (1 << 30) /* ownership change */ +#define OHCI_INTR_MIE (1 << 31) /* master interrupt enable */ + + +/* Virtual Root HUB */ +struct virt_root_hub { + int devnum; /* Address of Root Hub endpoint */ + void *dev; /* was urb */ + void *int_addr; + int send; + int interval; +}; + +/* USB HUB CONSTANTS (not OHCI-specific; see hub.h) */ + +/* destination of request */ +#define RH_INTERFACE 0x01 +#define RH_ENDPOINT 0x02 +#define RH_OTHER 0x03 + +#define RH_CLASS 0x20 +#define RH_VENDOR 0x40 + +/* Requests: bRequest << 8 | bmRequestType */ +#define RH_GET_STATUS 0x0080 +#define RH_CLEAR_FEATURE 0x0100 +#define RH_SET_FEATURE 0x0300 +#define RH_SET_ADDRESS 0x0500 +#define RH_GET_DESCRIPTOR 0x0680 +#define RH_SET_DESCRIPTOR 0x0700 +#define RH_GET_CONFIGURATION 0x0880 +#define RH_SET_CONFIGURATION 0x0900 +#define RH_GET_STATE 0x0280 +#define RH_GET_INTERFACE 0x0A80 +#define RH_SET_INTERFACE 0x0B00 +#define RH_SYNC_FRAME 0x0C80 +/* Our Vendor Specific Request */ +#define RH_SET_EP 0x2000 + + +/* Hub port features */ +#define RH_PORT_CONNECTION 0x00 +#define RH_PORT_ENABLE 0x01 +#define RH_PORT_SUSPEND 0x02 +#define RH_PORT_OVER_CURRENT 0x03 +#define RH_PORT_RESET 0x04 +#define RH_PORT_POWER 0x08 +#define RH_PORT_LOW_SPEED 0x09 + +#define RH_C_PORT_CONNECTION 0x10 +#define RH_C_PORT_ENABLE 0x11 +#define RH_C_PORT_SUSPEND 0x12 +#define RH_C_PORT_OVER_CURRENT 0x13 +#define RH_C_PORT_RESET 0x14 + +/* Hub features */ +#define RH_C_HUB_LOCAL_POWER 0x00 +#define RH_C_HUB_OVER_CURRENT 0x01 + +#define RH_DEVICE_REMOTE_WAKEUP 0x00 +#define RH_ENDPOINT_STALL 0x01 + +#define RH_ACK 0x01 +#define RH_REQ_ERR -1 +#define RH_NACK 0x00 + + +/* OHCI ROOT HUB REGISTER MASKS */ + +/* roothub.portstatus [i] bits */ +#define RH_PS_CCS 0x00000001 /* current connect status */ +#define RH_PS_PES 0x00000002 /* port enable status*/ +#define RH_PS_PSS 0x00000004 /* port suspend status */ +#define RH_PS_POCI 0x00000008 /* port over current indicator */ +#define RH_PS_PRS 0x00000010 /* port reset status */ +#define RH_PS_PPS 0x00000100 /* port power status */ +#define RH_PS_LSDA 0x00000200 /* low speed device attached */ +#define RH_PS_CSC 0x00010000 /* connect status change */ +#define RH_PS_PESC 0x00020000 /* port enable status change */ +#define RH_PS_PSSC 0x00040000 /* port suspend status change */ +#define RH_PS_OCIC 0x00080000 /* over current indicator change */ +#define RH_PS_PRSC 0x00100000 /* port reset status change */ + +/* roothub.status bits */ +#define RH_HS_LPS 0x00000001 /* local power status */ +#define RH_HS_OCI 0x00000002 /* over current indicator */ +#define RH_HS_DRWE 0x00008000 /* device remote wakeup enable */ +#define RH_HS_LPSC 0x00010000 /* local power status change */ +#define RH_HS_OCIC 0x00020000 /* over current indicator change */ +#define RH_HS_CRWE 0x80000000 /* clear remote wakeup enable */ + +/* roothub.b masks */ +#define RH_B_DR 0x0000ffff /* device removable flags */ +#define RH_B_PPCM 0xffff0000 /* port power control mask */ + +/* roothub.a masks */ +#define RH_A_NDP (0xff << 0) /* number of downstream ports */ +#define RH_A_PSM (1 << 8) /* power switching mode */ +#define RH_A_NPS (1 << 9) /* no power switching */ +#define RH_A_DT (1 << 10) /* device type (mbz) */ +#define RH_A_OCPM (1 << 11) /* over current protection mode */ +#define RH_A_NOCP (1 << 12) /* no over current protection */ +#define RH_A_POTPGT (0xff << 24) /* power on to power good time */ + +/* urb */ +#define N_URB_TD 48 +typedef struct +{ + ed_t *ed; + __u16 length; /* number of tds associated with this request */ + __u16 td_cnt; /* number of tds already serviced */ + int state; + unsigned long pipe; + int actual_length; + td_t *td[N_URB_TD]; /* list pointer to all corresponding TDs associated with this request */ +} urb_priv_t; +#define URB_DEL 1 + +/* + * This is the full ohci controller description + * + * Note how the "proper" USB information is just + * a subset of what the full implementation needs. (Linus) + */ + + +typedef struct ohci { + struct ohci_hcca *hcca; /* hcca */ + /*dma_addr_t hcca_dma;*/ + + int irq; + int disabled; /* e.g. got a UE, we're hung */ + int sleeping; + unsigned long flags; /* for HC bugs */ + + struct ohci_regs *regs; /* OHCI controller's memory */ + + ed_t *ed_rm_list[2]; /* lists of all endpoints to be removed */ + ed_t *ed_bulktail; /* last endpoint of bulk list */ + ed_t *ed_controltail; /* last endpoint of control list */ + int intrstatus; + __u32 hc_control; /* copy of the hc control reg */ + struct usb_device *dev[32]; + struct virt_root_hub rh; + + const char *slot_name; +} ohci_t; + +#define NUM_EDS 8 /* num of preallocated endpoint descriptors */ + +struct ohci_device { + ed_t ed[NUM_EDS]; + int ed_cnt; +}; + +/* hcd */ +/* endpoint */ +static int ep_link(ohci_t * ohci, ed_t * ed); +static int ep_unlink(ohci_t * ohci, ed_t * ed); +static ed_t * ep_add_ed(struct usb_device * usb_dev, unsigned long pipe); + +/*-------------------------------------------------------------------------*/ + +/* we need more TDs than EDs */ +#define NUM_TD 64 + +/* +1 so we can align the storage */ +td_t gtd[NUM_TD+1]; +/* pointers to aligned storage */ +td_t *ptd; + +/* TDs ... */ +static inline struct td * +td_alloc (struct usb_device *usb_dev) +{ + int i; + struct td *td; + + td = NULL; + for (i = 0; i < NUM_TD; i++) { + if (ptd[i].usb_dev == NULL) { + td = &ptd[i]; + td->usb_dev = usb_dev; + break; + } + } + return td; +} + +static inline void +ed_free (struct ed *ed) +{ + ed->usb_dev = NULL; +} diff --git a/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/cache.S b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/cache.S new file mode 100644 index 000000000..9a3978447 --- /dev/null +++ b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/cache.S @@ -0,0 +1,278 @@ +/* + * Cache-handling routined for MIPS 4K CPUs + * + * Copyright (c) 2003 Wolfgang Denk <wd@denx.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + + +#include <config.h> +#include <version.h> +#include <asm/regdef.h> +#include <asm/mipsregs.h> +#include <asm/addrspace.h> +#include <asm/cacheops.h> +#if defined(CONFIG_IFX_MIPS) +# include "ifx_cache.S" +#endif + + /* 16KB is the maximum size of instruction and data caches on + * MIPS 4K. + */ +#define MIPS_MAX_CACHE_SIZE 0x4000 + + +/* + * cacheop macro to automate cache operations + * first some helpers... + */ +#define _mincache(size, maxsize) \ + bltu size,maxsize,9f ; \ + move size,maxsize ; \ +9: + +#define _align(minaddr, maxaddr, linesize) \ + .set noat ; \ + subu AT,linesize,1 ; \ + not AT ; \ + and minaddr,AT ; \ + addu maxaddr,-1 ; \ + and maxaddr,AT ; \ + .set at + +/* general operations */ +#define doop1(op1) \ + cache op1,0(a0) +#define doop2(op1, op2) \ + cache op1,0(a0) ; \ + nop ; \ + cache op2,0(a0) + +/* specials for cache initialisation */ +#define doop1lw(op1) \ + lw zero,0(a0) +#define doop1lw1(op1) \ + cache op1,0(a0) ; \ + lw zero,0(a0) ; \ + cache op1,0(a0) +#define doop121(op1,op2) \ + cache op1,0(a0) ; \ + nop; \ + cache op2,0(a0) ; \ + nop; \ + cache op1,0(a0) + +#define _oploopn(minaddr, maxaddr, linesize, tag, ops) \ + .set noreorder ; \ +10: doop##tag##ops ; \ + bne minaddr,maxaddr,10b ; \ + add minaddr,linesize ; \ + .set reorder + +/* finally the cache operation macros */ +#define vcacheopn(kva, n, cacheSize, cacheLineSize, tag, ops) \ + blez n,11f ; \ + addu n,kva ; \ + _align(kva, n, cacheLineSize) ; \ + _oploopn(kva, n, cacheLineSize, tag, ops) ; \ +11: + +#define icacheopn(kva, n, cacheSize, cacheLineSize, tag, ops) \ + _mincache(n, cacheSize); \ + blez n,11f ; \ + addu n,kva ; \ + _align(kva, n, cacheLineSize) ; \ + _oploopn(kva, n, cacheLineSize, tag, ops) ; \ +11: + +#define vcacheop(kva, n, cacheSize, cacheLineSize, op) \ + vcacheopn(kva, n, cacheSize, cacheLineSize, 1, (op)) + +#define icacheop(kva, n, cacheSize, cacheLineSize, op) \ + icacheopn(kva, n, cacheSize, cacheLineSize, 1, (op)) + +/******************************************************************************* +* +* mips_cache_reset - low level initialisation of the primary caches +* +* This routine initialises the primary caches to ensure that they +* have good parity. It must be called by the ROM before any cached locations +* are used to prevent the possibility of data with bad parity being written to +* memory. +* To initialise the instruction cache it is essential that a source of data +* with good parity is available. This routine +* will initialise an area of memory starting at location zero to be used as +* a source of parity. +* +* RETURNS: N/A +* +*/ + .globl mips_cache_reset + .ent mips_cache_reset +mips_cache_reset: + + li t2, CFG_ICACHE_SIZE + li t3, CFG_DCACHE_SIZE + li t4, CFG_CACHELINE_SIZE + move t5, t4 + + + li v0, MIPS_MAX_CACHE_SIZE + + /* Now clear that much memory starting from zero. + */ + + li a0, KSEG1 + addu a1, a0, v0 + +2: sw zero, 0(a0) + sw zero, 4(a0) + sw zero, 8(a0) + sw zero, 12(a0) + sw zero, 16(a0) + sw zero, 20(a0) + sw zero, 24(a0) + sw zero, 28(a0) + addu a0, 32 + bltu a0, a1, 2b + + /* Set invalid tag. + */ + + mtc0 zero, CP0_TAGLO +#if defined(CONFIG_IFX_MIPS) && defined(IFX_CACHE_EXTRA_INVALID_TAG) + IFX_CACHE_EXTRA_INVALID_TAG +#endif + + /* + * The caches are probably in an indeterminate state, + * so we force good parity into them by doing an + * invalidate, load/fill, invalidate for each line. + */ + + /* Assume bottom of RAM will generate good parity for the cache. + */ + + li a0, K0BASE + move a2, t2 # icacheSize + move a3, t4 # icacheLineSize + move a1, a2 + icacheopn(a0,a1,a2,a3,121,(Index_Store_Tag_I,Fill)) + +#if defined(CONFIG_IFX_MIPS) && defined(IFX_CACHE_EXTRA_OPERATION) + IFX_CACHE_EXTRA_OPERATION +#else + /* To support Orion/R4600, we initialise the data cache in 3 passes. + */ + + /* 1: initialise dcache tags. + */ + + li a0, K0BASE + move a2, t3 # dcacheSize + move a3, t5 # dcacheLineSize + move a1, a2 + icacheop(a0,a1,a2,a3,Index_Store_Tag_D) + + /* 2: fill dcache. + */ + + li a0, K0BASE + move a2, t3 # dcacheSize + move a3, t5 # dcacheLineSize + move a1, a2 + icacheopn(a0,a1,a2,a3,1lw,(dummy)) + + /* 3: clear dcache tags. + */ + + li a0, K0BASE + move a2, t3 # dcacheSize + move a3, t5 # dcacheLineSize + move a1, a2 + icacheop(a0,a1,a2,a3,Index_Store_Tag_D) +#endif + + j ra + .end mips_cache_reset + + +/******************************************************************************* +* +* dcache_status - get cache status +* +* RETURNS: 0 - cache disabled; 1 - cache enabled +* +*/ + .globl dcache_status + .ent dcache_status +dcache_status: + + mfc0 v0, CP0_CONFIG + andi v0, v0, 1 + j ra + + .end dcache_status + +/******************************************************************************* +* +* dcache_disable - disable cache +* +* RETURNS: N/A +* +*/ + .globl dcache_disable + .ent dcache_disable +dcache_disable: + + mfc0 t0, CP0_CONFIG + li t1, -8 + and t0, t0, t1 + ori t0, t0, CONF_CM_UNCACHED + mtc0 t0, CP0_CONFIG + j ra + + .end dcache_disable + + +/******************************************************************************* +* +* mips_cache_lock - lock RAM area pointed to by a0 in cache. +* +* RETURNS: N/A +* +*/ +#if defined(CONFIG_PURPLE) +# define CACHE_LOCK_SIZE (CFG_DCACHE_SIZE/2) +#else +# define CACHE_LOCK_SIZE (CFG_DCACHE_SIZE) +#endif + .globl mips_cache_lock + .ent mips_cache_lock +mips_cache_lock: + li a1, K0BASE - CACHE_LOCK_SIZE + addu a0, a1 + li a2, CACHE_LOCK_SIZE + li a3, CFG_CACHELINE_SIZE + move a1, a2 + icacheop(a0,a1,a2,a3,0x1d) + + j ra + .end mips_cache_lock diff --git a/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/config.mk b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/config.mk new file mode 100644 index 000000000..3414ad8a7 --- /dev/null +++ b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/config.mk @@ -0,0 +1,53 @@ +# +# (C) Copyright 2003 +# Wolfgang Denk, DENX Software Engineering, <wd@denx.de> +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# +v=$(shell \ +$(CROSS_COMPILE)as --version|grep "GNU assembler"|awk '{print $$3}'|awk -F . '{print $$2}') + +ifndef PLATFORM_CPU +PLATFORM_CPU = mips32r2 +endif + +MIPSFLAGS=$(shell \ +if [ "$v" -lt "14" ]; then \ + echo "-mcpu=$(PLATFORM_CPU)"; \ +else \ + echo "-march=$(PLATFORM_CPU) -mtune=$(PLATFORM_CPU)"; \ +fi) + +ifeq ($(CROSS_COMPILE_UCLIBC),1) +ifneq (,$(findstring mipsel,$(CROSS_COMIPLE))) +ENDIANNESS = -el +else +ENDIANNESS = -eb +endif +else +ifneq (,$(findstring 4KCle,$(CROSS_COMPILE))) +ENDIANNESS = -EL +else +ENDIANNESS = -EB +endif +endif + +MIPSFLAGS += $(ENDIANNESS) -mabicalls + +PLATFORM_CPPFLAGS += $(MIPSFLAGS) diff --git a/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/cpu.c b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/cpu.c new file mode 100644 index 000000000..b9f90ce0c --- /dev/null +++ b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/cpu.c @@ -0,0 +1,61 @@ +/* + * (C) Copyright 2003 + * Wolfgang Denk, DENX Software Engineering, <wd@denx.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <command.h> +#if defined(CONFIG_INCA_IP) +# include <asm/inca-ip.h> +#elif defined(CONFIG_IFX_MIPS) +# include <asm/danube.h> +# include "ifx_cpu.c" +#endif +#include <asm/mipsregs.h> + +int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ +#if defined(CONFIG_INCA_IP) + *INCA_IP_WDT_RST_REQ = 0x3f; +#elif defined(CONFIG_PURPLE) || defined(CONFIG_TB0229) + void (*f)(void) = (void *) 0xbfc00000; + + f(); +#elif defined(CONFIG_IFX_MIPS) + IFX_CPU_RESET; +#endif + fprintf(stderr, "*** reset failed ***\n"); + return 0; +} + +void flush_cache (ulong start_addr, ulong size) +{ + +} + +void write_one_tlb( int index, u32 pagemask, u32 hi, u32 low0, u32 low1 ){ + write_32bit_cp0_register(CP0_ENTRYLO0, low0); + write_32bit_cp0_register(CP0_PAGEMASK, pagemask); + write_32bit_cp0_register(CP0_ENTRYLO1, low1); + write_32bit_cp0_register(CP0_ENTRYHI, hi); + write_32bit_cp0_register(CP0_INDEX, index); + tlb_write_indexed(); +} diff --git a/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/ifx_asc.c b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/ifx_asc.c new file mode 100644 index 000000000..52c6cb271 --- /dev/null +++ b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/ifx_asc.c @@ -0,0 +1,257 @@ +/***************************************************************************** + * DANUBE BootROM + * Copyright (c) 2005, Infineon Technologies AG, All rights reserved + * IFAP DC COM SD + *****************************************************************************/ + +#include <config.h> +//#include <lib.h> +#include <asm/danube.h> +#include <asm/addrspace.h> +#include <asm/ifx_asc.h> + + +#define ASC_FIFO_PRESENT +#define SET_BIT(reg, mask) reg |= (mask) +#define CLEAR_BIT(reg, mask) reg &= (~mask) +#define CLEAR_BITS(reg, mask) CLEAR_BIT(reg, mask) +#define SET_BITS(reg, mask) SET_BIT(reg, mask) +#define SET_BITFIELD(reg, mask, off, val) {reg &= (~mask); reg |= (val << off);} + + +typedef unsigned char u8; +typedef unsigned short u16; +typedef unsigned long u32; +typedef signed long s32; +typedef unsigned int uint; +typedef unsigned long ulong; +typedef volatile unsigned short vuint; + + + +void serial_setbrg (void); + +/*TODO: undefine this !!!*/ +#undef DEBUG_ASC_RAW +#ifdef DEBUG_ASC_RAW +#define DEBUG_ASC_RAW_RX_BUF 0xA0800000 +#define DEBUG_ASC_RAW_TX_BUF 0xA0900000 +#endif + +static volatile DanubeAsc_t *pAsc = (DanubeAsc_t *)DANUBE_ASC1; + +typedef struct{ + u16 fdv; /* 0~511 fractional divider value*/ + u16 reload; /* 13 bit reload value*/ +} ifx_asc_baud_reg_t; + +#ifdef ON_VENUS +/*9600 @1.25M rel 00.08*/ +//#define FDV 503 +//#define RELOAD 7 +/*9600 @0.625M rel final00.01 & rtl_freeze*/ +#define FDV 503 +#define RELOAD 3 +/* first index is DDR_SEL, second index is FPI_SEL */ +#endif +static ifx_asc_baud_reg_t g_danube_asc_baud[4][2] = +{ +#ifdef ON_VENUS + {{503,3},{503,3}}, /* 1152000 @ 166.67M and half*/ + {{503,3},{503,3}}, /* 1152000 @ 133.3M and half*/ + {{503,3},{503,3}}, /* 1152000 @ 111.11M and half*/ + {{503.3},{503,3}} /* 1152000 @ 83.33M and half*/ +#else +/* TAPEOUT table */ + {{436,76},{419,36}}, /* 1152000 @ 166.67M and half*/ + {{453,63},{453,31}}, /* 1152000 @ 133.3M and half*/ + {{501,58},{510,29}}, /* 1152000 @ 111.11M and half*/ + {{419.36},{453,19}} /* 1152000 @ 83.33M and half*/ +#endif +}; +/****************************************************************************** +* +* asc_init - initialize a Danube ASC channel +* +* This routine initializes the number of data bits, parity +* and set the selected baud rate. Interrupts are disabled. +* Set the modem control signals if the option is selected. +* +* RETURNS: N/A +*/ + +int serial_init (void) +{ + + /* and we have to set CLC register*/ + CLEAR_BIT(pAsc->asc_clc, ASCCLC_DISS); + SET_BITFIELD(pAsc->asc_clc, ASCCLC_RMCMASK, ASCCLC_RMCOFFSET, 0x0001); + + /* initialy we are in async mode */ + pAsc->asc_con = ASCCON_M_8ASYNC; + + /* select input port */ + pAsc->asc_pisel = (CONSOLE_TTY & 0x1); + + /* TXFIFO's filling level */ + SET_BITFIELD(pAsc->asc_txfcon, ASCTXFCON_TXFITLMASK, + ASCTXFCON_TXFITLOFF, DANUBEASC_TXFIFO_FL); + /* enable TXFIFO */ + SET_BIT(pAsc->asc_txfcon, ASCTXFCON_TXFEN); + + /* RXFIFO's filling level */ + SET_BITFIELD(pAsc->asc_txfcon, ASCRXFCON_RXFITLMASK, + ASCRXFCON_RXFITLOFF, DANUBEASC_RXFIFO_FL); + /* enable RXFIFO */ + SET_BIT(pAsc->asc_rxfcon, ASCRXFCON_RXFEN); + + /* set baud rate */ + serial_setbrg(); + + /* enable error signals & Receiver enable */ + SET_BIT(pAsc->asc_whbstate, ASCWHBSTATE_SETREN|ASCCON_FEN|ASCCON_TOEN|ASCCON_ROEN); + + return 0; +} + +void serial_setbrg (void) +{ + u32 uiReloadValue, fdv; + +#if defined(ON_IKOS) + /*1200 @77K */ + fdv=472; + uiReloadValue=5; +#else + /*venus & tapeout */ + u32 ddr_sel,fpi_sel; + ddr_sel = (* DANUBE_CGU_SYS) & 0x3; + fpi_sel = ((* DANUBE_CGU_SYS) & 0x40)?1:0; + fdv= g_danube_asc_baud[ddr_sel][fpi_sel].fdv; + uiReloadValue=g_danube_asc_baud[ddr_sel][fpi_sel].reload; +#endif //ON_IKOS + /* Disable Baud Rate Generator; BG should only be written when R=0 */ + CLEAR_BIT(pAsc->asc_con, ASCCON_R); + + /* Enable Fractional Divider */ + SET_BIT(pAsc->asc_con, ASCCON_FDE); /* FDE = 1 */ + + /* Set fractional divider value */ + pAsc->asc_fdv = fdv & ASCFDV_VALUE_MASK; + + /* Set reload value in BG */ + pAsc->asc_bg = uiReloadValue; + + /* Enable Baud Rate Generator */ + SET_BIT(pAsc->asc_con, ASCCON_R); /* R = 1 */ +} + + +void serial_putc (const char c) +{ + u32 txFl = 0; +#ifdef DEBUG_ASC_RAW + static u8 * debug = (u8 *) DEBUG_ASC_RAW_TX_BUF; + *debug++=c; +#endif + if (c == '\n') + serial_putc ('\r'); + /* check do we have a free space in the TX FIFO */ + /* get current filling level */ + do + { + txFl = ( pAsc->asc_fstat & ASCFSTAT_TXFFLMASK ) >> ASCFSTAT_TXFFLOFF; + } + while ( txFl == DANUBEASC_TXFIFO_FULL ); + + pAsc->asc_tbuf = c; /* write char to Transmit Buffer Register */ + + /* check for errors */ + if ( pAsc->asc_state & ASCSTATE_TOE ) + { + SET_BIT(pAsc->asc_whbstate, ASCWHBSTATE_CLRTOE); + return; + } +} + +void serial_puts (const char *s) +{ + while (*s) + { + serial_putc (*s++); + } +} + +int asc_inb(int timeout) +{ + u32 symbol_mask; + char c; + while ((pAsc->asc_fstat & ASCFSTAT_RXFFLMASK) == 0 ) { + } + symbol_mask = ((ASC_OPTIONS & ASCOPT_CSIZE) == ASCOPT_CS7) ? (0x7f) : (0xff); + c = (char)(pAsc->asc_rbuf & symbol_mask); + return (c); +} + +int serial_getc (void) +{ + char c; + while ((pAsc->asc_fstat & ASCFSTAT_RXFFLMASK) == 0 ); + c = (char)(pAsc->asc_rbuf & 0xff); + +#ifdef DEBUG_ASC_RAW + static u8* debug=(u8*)(DEBUG_ASC_RAW_RX_BUF); + *debug++=c; +#endif + return c; +} + + + +int serial_tstc (void) +{ + int res = 1; + +#ifdef ASC_FIFO_PRESENT + if ( (pAsc->asc_fstat & ASCFSTAT_RXFFLMASK) == 0 ) + { + res = 0; + } +#else + if (!(*(volatile unsigned long*)(SFPI_INTCON_BASEADDR + FBS_ISR) & + FBS_ISR_AR)) + + { + res = 0; + } +#endif +#if 0 + else if ( pAsc->asc_con & ASCCON_FE ) + { + SET_BIT(pAsc->asc_whbcon, ASCWHBCON_CLRFE); + res = 0; + } + else if ( pAsc->asc_con & ASCCON_PE ) + { + SET_BIT(pAsc->asc_whbcon, ASCWHBCON_CLRPE); + res = 0; + } + else if ( pAsc->asc_con & ASCCON_OE ) + { + SET_BIT(pAsc->asc_whbcon, ASCWHBCON_CLROE); + res = 0; + } +#endif + return res; +} + + +int serial_start(void) +{ + return 1; +} + +int serial_stop(void) +{ + return 1; +} diff --git a/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/ifx_cache.S b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/ifx_cache.S new file mode 100644 index 000000000..fc482dcd6 --- /dev/null +++ b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/ifx_cache.S @@ -0,0 +1,60 @@ + +#define IFX_CACHE_EXTRA_INVALID_TAG \ + mtc0 zero, CP0_TAGLO, 1; \ + mtc0 zero, CP0_TAGLO, 2; \ + mtc0 zero, CP0_TAGLO, 3; \ + mtc0 zero, CP0_TAGLO, 4; + +#define IFX_CACHE_EXTRA_OPERATION \ + /* set WST bit */ \ + mfc0 a0, CP0_ECC; \ + li a1, ECCF_WST; \ + or a0, a1; \ + mtc0 a0, CP0_ECC; \ + \ + li a0, K0BASE; \ + move a2, t2; /* icacheSize */ \ + move a3, t4; /* icacheLineSize */ \ + move a1, a2; \ + icacheop(a0,a1,a2,a3,(Index_Store_Tag_I)); \ + \ + /* clear WST bit */ \ + mfc0 a0, CP0_ECC; \ + li a1, ~ECCF_WST; \ + and a0, a1; \ + mtc0 a0, CP0_ECC; \ + \ + /* 1: initialise dcache tags. */ \ + \ + /* cache line size */ \ + li a2, CFG_CACHELINE_SIZE; \ + /* kseg0 mem address */ \ + li a1, 0; \ + li a3, CFG_CACHE_SETS * CFG_CACHE_WAYS; \ +1: \ + /* store tag (invalid, not locked) */ \ + cache 0x8, 0(a1); \ + cache 0x9, 0(a1); \ + \ + add a3, -1; \ + bne a3, zero, 1b; \ + add a1, a2; \ + \ + /* set WST bit */ \ + mfc0 a0, CP0_ECC; \ + li a1, ECCF_WST; \ + or a0, a1; \ + mtc0 a0, CP0_ECC; \ + \ + li a0, K0BASE; \ + move a2, t3; /* dcacheSize */ \ + move a3, t5; /* dcacheLineSize */ \ + move a1, a2; \ + icacheop(a0,a1,a2,a3,(Index_Store_Tag_D)); \ + \ + /* clear WST bit */ \ + mfc0 a0, CP0_ECC; \ + li a1, ~ECCF_WST; \ + and a0, a1; \ + mtc0 a0, CP0_ECC; + diff --git a/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/ifx_cgu.c b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/ifx_cgu.c new file mode 100644 index 000000000..3fe13dde2 --- /dev/null +++ b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/ifx_cgu.c @@ -0,0 +1,1086 @@ +/*
+ * ########################################################################
+ *
+ * This program is free software; you can distribute it and/or modify it
+ * under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * ########################################################################
+ *
+ * danube_cgu.c
+ *
+ * Description:
+ * device driver of clock generation unit of Danube chip
+ * Author:
+ * Samuels Xu Liang
+ * Created:
+ * 19 Jul 2005
+ * History & Modification Tag:
+ * ___________________________________________________________________________
+ * | Tag | Comments | Modifier & Time |
+ * |--------+---------------------------------------------+------------------|
+ * | S0.0 | First version of this driver and the tag is | Samuels Xu Liang |
+ * | | implied. | 19 Jul 2005 |
+ * ---------------------------------------------------------------------------
+ *
+ */
+
+
+/*
+ * ####################################
+ * Head File
+ * ####################################
+ */
+
+/*
+ * Common Head File
+ */
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/types.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/init.h>
+#include <asm/uaccess.h>
+#include <asm/unistd.h>
+#include <asm/irq.h>
+#include <linux/errno.h>
+
+/*
+ * Chip Specific Head File
+ */
+#include "ifx_cgu.h"
+
+
+/*
+ * ####################################
+ * Definition
+ * ####################################
+ */
+
+#define DEBUG_ON_AMAZON 1
+#define DEBUG_PRINT_INFO 1
+
+/*
+ * Frequency of Clock Direct Feed from The Analog Line Driver Chip
+ */
+#define BASIC_INPUT_CLOCK_FREQUENCY 35328000
+
+/*
+ * Bits Operation
+ */
+#define GET_BITS(x, msb, lsb) (((x) & ((1 << ((msb) + 1)) - 1)) >> (lsb))
+#define SET_BITS(x, msb, lsb, value) (((x) & ~(((1 << ((msb) + 1)) - 1) ^ ((1 << (lsb)) - 1))) | (((value) & ((1 << (1 + (msb) - (lsb))) - 1)) << (lsb)))
+
+/*
+ * CGU Register Mapping
+ */
+#define DANUBE_CGU (KSEG1 + 0x1F103000)
+#define DANUBE_CGU_DIV ((volatile u32*)(DANUBE_CGU + 0x0000))
+#define DANUBE_CGU_PLL_NMK0 ((volatile u32*)(DANUBE_CGU + 0x0004))
+#define DANUBE_CGU_PLL_SR0 ((volatile u32*)(DANUBE_CGU + 0x0008))
+#define DANUBE_CGU_PLL_NMK1 ((volatile u32*)(DANUBE_CGU + 0x000C))
+#define DANUBE_CGU_PLL_SR1 ((volatile u32*)(DANUBE_CGU + 0x0010))
+#define DANUBE_CGU_PLL_SR2 ((volatile u32*)(DANUBE_CGU + 0x0014))
+#define DANUBE_CGU_IF_CLK ((volatile u32*)(DANUBE_CGU + 0x0018))
+#define DANUBE_CGU_OSC_CTRL ((volatile u32*)(DANUBE_CGU + 0x001C))
+#define DANUBE_CGU_SMD ((volatile u32*)(DANUBE_CGU + 0x0020))
+#define DANUBE_CGU_CRD ((volatile u32*)(DANUBE_CGU + 0x0024))
+#define DANUBE_CGU_CT1SR ((volatile u32*)(DANUBE_CGU + 0x0028))
+#define DANUBE_CGU_CT2SR ((volatile u32*)(DANUBE_CGU + 0x002C))
+#define DANUBE_CGU_PCMCR ((volatile u32*)(DANUBE_CGU + 0x0030))
+#define DANUBE_CGU_MUX ((volatile u32*)(DANUBE_CGU + 0x0034))
+
+/*
+ * CGU Divider Register
+ */
+#define CGU_DIV_SFTR (*DANUBE_CGU_DIV & (1 << 31))
+#define CGU_DIV_DIVE (*DANUBE_CGU_DIV & (1 << 16))
+#define CGU_DIV_IOR GET_BITS(*DANUBE_CGU_DIV, 5, 4)
+#define CGU_DIV_FKS GET_BITS(*DANUBE_CGU_DIV, 3, 2)
+#define CGU_DIV_FBS GET_BITS(*DANUBE_CGU_DIV, 1, 0)
+
+/*
+ * CGU PLL0 NMK Register
+ */
+#define CGU_PLL_NMK0_PLLN ((*DANUBE_CGU_PLL_NMK0 & (0xFFFFFFFF ^ ((1 << 24) - 1))) >> 24)
+#define CGU_PLL_NMK0_PLLM GET_BITS(*DANUBE_CGU_PLL_NMK0, 23, 20)
+#define CGU_PLL_NMK0_PLLK GET_BITS(*DANUBE_CGU_PLL_NMK0, 19, 0)
+
+/*
+ * CGU PLL0 Status Register
+ */
+#define CGU_PLL_SR0_PLLDIV ((*DANUBE_CGU_PLL_SR0 & (0xFFFFFFFF ^ ((1 << 28) - 1))) >> 28)
+#define CGU_PLL_SR0_PLLDEN (*DANUBE_CGU_PLL_SR0 & (1 << 26))
+#define CGU_PLL_SR0_PLLPSE GET_BITS(*DANUBE_CGU_PLL_SR0, 5, 4)
+#define CGU_PLL_SR0_PLLB (*DANUBE_CGU_PLL_SR0 & (1 << 2))
+#define CGU_PLL_SR0_PLLL (*DANUBE_CGU_PLL_SR0 & (1 << 1))
+#define CGU_PLL_SR0_PLLEN (*DANUBE_CGU_PLL_SR0 & (1 << 0))
+
+#define CGU_PLL_SR0_DSMSEL 1
+#define CGU_PLL_SR0_PHASE_DIV_EN 1
+
+/*
+ * CGU PLL1 NMK Register
+ */
+#define CGU_PLL_NMK1_PLLN ((*DANUBE_CGU_PLL_NMK1 & (0xFFFFFFFF ^ ((1 << 24) - 1))) >> 24)
+#define CGU_PLL_NMK1_PLLM GET_BITS(*DANUBE_CGU_PLL_NMK1, 23, 20)
+#define CGU_PLL_NMK1_PLLK GET_BITS(*DANUBE_CGU_PLL_NMK1, 19, 0)
+
+/*
+ * CGU PLL1 Status Register
+ */
+#define CGU_PLL_SR1_PLLDIV ((*DANUBE_CGU_PLL_SR1 & (0xFFFFFFFF ^ ((1 << 28) - 1))) >> 28)
+#define CGU_PLL_SR1_PLLDEN (*DANUBE_CGU_PLL_SR1 & (1 << 26))
+#define CGU_PLL_SR1_PLLPSE GET_BITS(*DANUBE_CGU_PLL_SR1, 5, 4)
+#define CGU_PLL_SR1_PLLB (*DANUBE_CGU_PLL_SR1 & (1 << 2))
+#define CGU_PLL_SR1_PLLL (*DANUBE_CGU_PLL_SR1 & (1 << 1))
+#define CGU_PLL_SR1_PLLEN (*DANUBE_CGU_PLL_SR1 & (1 << 0))
+
+#define CGU_PLL_SR1_DSMSEL 1
+#define CGU_PLL_SR1_PHASE_DIV_EN 1
+
+/*
+ * CGU PLL2 Status Register
+ */
+#define CGU_PLL_SR2_PLLDIV ((*DANUBE_CGU_PLL_SR2 & (0xFFFFFFFF ^ ((1 << 28) - 1))) >> 28)
+#define CGU_PLL_SR2_PLLDEN (*DANUBE_CGU_PLL_SR2 & (1 << 27))
+#define CGU_PLL_SR2_PLLN GET_BITS(*DANUBE_CGU_PLL_SR2, 25, 20)
+#define CGU_PLL_SR2_PLLM GET_BITS(*DANUBE_CGU_PLL_SR2, 19, 16)
+#define CGU_PLL_SR2_PLLPS (*DANUBE_CGU_PLL_SR2 & (1 << 5))
+#define CGU_PLL_SR2_PLLPE (*DANUBE_CGU_PLL_SR2 & (1 << 4))
+#define CGU_PLL_SR2_PLLB (*DANUBE_CGU_PLL_SR2 & (1 << 2))
+#define CGU_PLL_SR2_PLLL (*DANUBE_CGU_PLL_SR2 & (1 << 1))
+#define CGU_PLL_SR2_PLLEN (*DANUBE_CGU_PLL_SR2 & (1 << 0))
+
+/*
+ * CGU Interface Clock Register
+ */
+#define CGU_IF_CLK_CLKOD0 GET_BITS(*DANUBE_CGU_IF_CLK, 27, 26)
+#define CGU_IF_CLK_CLKOD1 GET_BITS(*DANUBE_CGU_IF_CLK, 25, 24)
+#define CGU_IF_CLK_CLKOD2 GET_BITS(*DANUBE_CGU_IF_CLK, 23, 22)
+#define CGU_IF_CLK_CLKOD3 GET_BITS(*DANUBE_CGU_IF_CLK, 21, 20)
+#define CGU_IF_CLK_PDA (*DANUBE_CGU_IF_CLK & (1 << 18))
+#define CGU_IF_CLK_PCI_B (*DANUBE_CGU_IF_CLK & (1 << 17))
+#define CGU_IF_CLK_PCIBM (*DANUBE_CGU_IF_CLK & (1 << 16))
+#define CGU_IF_CLK_MIICS (*DANUBE_CGU_IF_CLK & (1 << 3))
+#define CGU_IF_CLK_USBCS (*DANUBE_CGU_IF_CLK & (1 << 2))
+#define CGU_IF_CLK_PCIF (*DANUBE_CGU_IF_CLK & (1 << 1))
+#define CGU_IF_CLK_PCIS (*DANUBE_CGU_IF_CLK & (1 << 0))
+
+/*
+ * CGU Oscillator Control Register
+ */
+#define CGU_OSC_CTRL GET_BITS(*DANUBE_CGU_OSC_CTRL, 1, 0)
+
+/*
+ * CGU SDRAM Memory Delay Register
+ */
+#define CGU_SMD_CLKI (*DANUBE_CGU_SMD & (1 << 31))
+#define CGU_SMD_MIDS GET_BITS(*DANUBE_CGU_SMD, 17, 12)
+#define CGU_SMD_MODS GET_BITS(*DANUBE_CGU_SMD, 11, 6)
+#define CGU_SMD_MDSEL GET_BITS(*DANUBE_CGU_SMD, 5, 0)
+
+/*
+ * CGU CPU Clock Reduction Register
+ */
+#define CGU_CRD_SFTR (*DANUBE_CGU_CRD & (1 << 31))
+#define CGU_CRD_DIVE (*DANUBE_CGU_CRD & (1 << 16))
+#define CGU_CRD_CRD1 GET_BITS(*DANUBE_CGU_CRD, 3, 2)
+#define CGU_CRD_CRD GET_BITS(*DANUBE_CGU_CRD, 1, 0)
+
+/*
+ * CGU CT Status Register 1
+ */
+#define CGU_CT1SR_PDOUT GET_BITS(*DANUBE_CGU_CT1SR, 13, 0)
+
+/*
+ * CGU CT Status Register 2
+ */
+#define CGU_CT2SR_PLL1K GET_BITS(*DANUBE_CGU_CT2SR, 9, 0)
+
+/*
+ * CGU PCM Control Register
+ */
+#define CGU_PCMCR_DCL1 GET_BITS(*DANUBE_CGU_PCMCR, 27, 25)
+#define CGU_PCMCR_MUXDCL (*DANUBE_CGU_PCMCR & (1 << 22))
+#define CGU_PCMCR_MUXFSC (*DANUBE_CGU_PCMCR & (1 << 18))
+#define CGU_PCMCR_PCM_SL (*DANUBE_CGU_PCMCR & (1 << 13))
+#define CGU_PCMCR_DNTR (*DANUBE_CGU_PCMCR & (1 << 12))
+
+/*
+ * CGU Clock Mux Register
+ */
+#define CGU_MUX_MII_CLK (*DANUBE_CGU_MUX & (1 << 6))
+#define CGU_MUX_SUB_SYS GET_BITS(*DANUBE_CGU_MUX, 5, 3)
+#define CGU_MUX_PP32 GET_BITS(*DANUBE_CGU_MUX, 1, 0)
+
+
+/*
+ * ####################################
+ * Preparation of Debug on Amazon Chip
+ * ####################################
+ */
+
+/*
+ * If try module on Amazon chip, prepare some tricks to prevent invalid memory write.
+ */
+#if defined(DEBUG_ON_AMAZON) && DEBUG_ON_AMAZON
+ u32 g_pFakeRegisters[0x0100];
+
+ #undef DANUBE_CGU
+ #define DANUBE_CGU ((u32)g_pFakeRegisters)
+#endif // defined(DEBUG_ON_AMAZON) && DEBUG_ON_AMAZON
+
+
+/*
+ * ####################################
+ * Data Type
+ * ####################################
+ */
+
+
+/*
+ * ####################################
+ * Declaration
+ * ####################################
+ */
+
+/*
+ * Pre-declaration of File Operations
+ */
+static ssize_t cgu_read(struct file *, char *, size_t, loff_t *);
+static ssize_t cgu_write(struct file *, const char *, size_t, loff_t *);
+static int cgu_ioctl(struct inode *, struct file *, unsigned int, unsigned long);
+static int cgu_open(struct inode *, struct file *);
+static int cgu_release(struct inode *, struct file *);
+
+/*
+ * Pre-declaration of 64-bit Unsigned Integer Operation
+ */
+static inline void uint64_multiply(unsigned int, unsigned int, unsigned int *);
+static inline void uint64_divide(unsigned int *, unsigned int, unsigned int *, unsigned int *);
+
+/*
+ * Calculate PLL Frequency
+ */
+static inline u32 cal_dsm(u32, u32);
+static inline u32 mash_dsm(u32, u32, u32);
+static inline u32 ssff_dsm_1(u32, u32, u32);
+static inline u32 ssff_dsm_2(u32, u32, u32);
+static inline u32 dsm(u32 M, u32, u32, int, int);
+static inline u32 cgu_get_pll0_fosc(void);
+static inline u32 cgu_get_pll0_fps(void);
+static inline u32 cgu_get_pll0_fdiv(void);
+static inline u32 cgu_get_pll1_fosc(void);
+static inline u32 cgu_get_pll1_fps(void);
+static inline u32 cgu_get_pll1_fdiv(void);
+static inline u32 cgu_get_pll2_fosc(void);
+static inline u32 cgu_get_pll2_fps(void);
+
+/*
+ * Export Functions
+ */
+u32 cgu_get_mips_clock(int);
+u32 cgu_get_cpu_clock(void);
+u32 cgu_get_io_region_clock(void);
+u32 cgu_get_fpi_bus_clock(int);
+u32 cgu_get_pp32_clock(void);
+u32 cgu_get_pci_clock(void);
+u32 cgu_get_ethernet_clock(void);
+u32 cgu_get_usb_clock(void);
+u32 cgu_get_clockout(int);
+
+
+/*
+ * ####################################
+ * Local Variable
+ * ####################################
+ */
+
+static struct file_operations cgu_fops = {
+ owner: THIS_MODULE,
+ llseek: no_llseek,
+ read: cgu_read,
+ write: cgu_write,
+ ioctl: cgu_ioctl,
+ open: cgu_open,
+ release: cgu_release
+};
+
+static struct miscdevice cgu_miscdev = {
+ MISC_DYNAMIC_MINOR,
+ "danube_cgu_dev",
+ &cgu_fops
+};
+
+
+/*
+ * ####################################
+ * Global Variable
+ * ####################################
+ */
+
+
+/*
+ * ####################################
+ * Local Function
+ * ####################################
+ */
+
+static ssize_t cgu_read(struct file *file, char *buf, size_t count, loff_t *ppos)
+{
+ return -EPERM;
+}
+
+static ssize_t cgu_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
+{
+ return -EPERM;
+}
+
+static int cgu_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+{
+ int ret = 0;
+ struct cgu_clock_rates rates;
+
+ if ( _IOC_TYPE(cmd) != CGU_IOC_MAGIC
+ || _IOC_NR(cmd) >= CGU_IOC_MAXNR )
+ return -ENOTTY;
+
+ if ( _IOC_DIR(cmd) & _IOC_READ )
+ ret = !access_ok(VERIFY_WRITE, arg, _IOC_SIZE(cmd));
+ else if ( _IOC_DIR(cmd) & _IOC_WRITE )
+ ret = !access_ok(VERIFY_READ, arg, _IOC_SIZE(cmd));
+ if ( ret )
+ return -EFAULT;
+
+ switch ( cmd )
+ {
+ case CGU_GET_CLOCK_RATES:
+ /* Calculate Clock Rates */
+ rates.mips0 = cgu_get_mips_clock(0);
+ rates.mips1 = cgu_get_mips_clock(1);
+ rates.cpu = cgu_get_cpu_clock();
+ rates.io_region = cgu_get_io_region_clock();
+ rates.fpi_bus1 = cgu_get_fpi_bus_clock(1);
+ rates.fpi_bus2 = cgu_get_fpi_bus_clock(2);
+ rates.pp32 = cgu_get_pp32_clock();
+ rates.pci = cgu_get_pci_clock();
+ rates.ethernet = cgu_get_ethernet_clock();
+ rates.usb = cgu_get_usb_clock();
+ rates.clockout0 = cgu_get_clockout(0);
+ rates.clockout1 = cgu_get_clockout(1);
+ rates.clockout2 = cgu_get_clockout(2);
+ rates.clockout3 = cgu_get_clockout(3);
+ /* Copy to User Space */
+ copy_to_user((char*)arg, (char*)&rates, sizeof(rates));
+
+ ret = 0;
+ break;
+ default:
+ ret = -ENOTTY;
+ }
+
+ return ret;
+}
+
+static int cgu_open(struct inode *inode, struct file *file)
+{
+ return 0;
+}
+
+static int cgu_release(struct inode *inode, struct file *file)
+{
+ return 0;
+}
+
+/*
+ * Description:
+ * calculate 64-bit multiplication result of two 32-bit unsigned integer
+ * Input:
+ * u32Multiplier1 --- u32 (32-bit), one of the multipliers
+ * u32Multiplier2 --- u32 (32-bit), the other multiplier
+ * u32Result --- u32[2], array to retrieve the multiplication result,
+ * index 0 is high word, index 1 is low word
+ * Output:
+* none
+ */
+static inline void uint64_multiply(u32 u32Multiplier1, u32 u32Multiplier2, u32 u32Result[2])
+{
+ u32 u32Multiplier1LowWord = u32Multiplier1 & 0xFFFF;
+ u32 u32Multiplier1HighWord = u32Multiplier1 >> 16;
+ u32 u32Multiplier2LowWord = u32Multiplier2 & 0xFFFF;
+ u32 u32Multiplier2HighWord = u32Multiplier2 >> 16;
+ u32 u32Combo1, u32Combo2, u32Combo3, u32Combo4;
+ u32 u32Word1, u32Word2, u32Word3, u32Word4;
+
+ u32Combo1 = u32Multiplier1LowWord * u32Multiplier2LowWord;
+ u32Combo2 = u32Multiplier1HighWord * u32Multiplier2LowWord;
+ u32Combo3 = u32Multiplier1LowWord * u32Multiplier2HighWord;
+ u32Combo4 = u32Multiplier1HighWord * u32Multiplier2HighWord;
+
+ u32Word1 = u32Combo1 & 0xFFFF;
+ u32Word2 = (u32Combo1 >> 16) + (u32Combo2 & 0xFFFF) + (u32Combo3 & 0xFFFF);
+ u32Word3 = (u32Combo2 >> 16) + (u32Combo3 >> 16) + (u32Combo4 & 0xFFFF) + (u32Word2 >> 16);
+ u32Word4 = (u32Combo4 >> 16) + (u32Word3 >> 16);
+
+ u32Result[0] = (u32Word4 << 16) | u32Word3;
+ u32Result[1] = (u32Word2 << 16) | u32Word1;
+}
+
+/*
+ * Description:
+ * divide 64-bit unsigned integer with 32-bit unsigned integer
+ * Input:
+ * u32Numerator --- u32[2], index 0 is high word of numerator, while
+ * index 1 is low word of numerator
+ * u32Denominator --- u32 (32-bit), the denominator in division, this
+ * parameter can not be zero, or lead to unpredictable
+ * result
+ * pu32Quotient --- u32 *, the pointer to retrieve 32-bit quotient, null
+ * pointer means ignore quotient
+ * pu32Residue --- u32 *, the pointer to retrieve 32-bit residue null
+ * pointer means ignore residue
+ * Output:
+ * none
+ */
+static inline void uint64_divide(u32 u32Numerator[2], u32 u32Denominator, u32 *pu32Quotient, u32 *pu32Residue)
+{
+ u32 u32DWord1, u32DWord2, u32DWord3;
+ u32 u32Quotient;
+ int i;
+
+ u32DWord3 = 0;
+ u32DWord2 = u32Numerator[0];
+ u32DWord1 = u32Numerator[1];
+
+ u32Quotient = 0;
+
+ for ( i = 0; i < 64; i++ )
+ {
+ u32DWord3 = (u32DWord3 << 1) | (u32DWord2 >> 31);
+ u32DWord2 = (u32DWord2 << 1) | (u32DWord1 >> 31);
+ u32DWord1 <<= 1;
+ u32Quotient <<= 1;
+ if ( u32DWord3 >= u32Denominator )
+ {
+ u32DWord3 -= u32Denominator;
+ u32Quotient |= 1;
+ }
+ }
+ if ( pu32Quotient )
+ *pu32Quotient = u32Quotient;
+ if ( pu32Residue )
+ *pu32Residue = u32DWord3;
+}
+
+/*
+ * Description:
+ * common routine to calculate PLL frequency
+ * Input:
+ * num --- u32, numerator
+ * den --- u32, denominator
+ * Output:
+ * u32 --- frequency the PLL output
+ */
+static inline u32 cal_dsm(u32 num, u32 den)
+{
+ u32 ret;
+ u32 temp[2];
+ u32 residue;
+
+ uint64_multiply(num, BASIC_INPUT_CLOCK_FREQUENCY, temp);
+ uint64_divide(temp, den, &ret, &residue);
+ if ( (residue << 1) >= den )
+ ret++;
+
+ return ret;
+}
+
+/*
+ * Description:
+ * calculate PLL frequency following MASH-DSM
+ * Input:
+ * M --- u32, denominator coefficient
+ * N --- u32, numerator integer coefficient
+ * K --- u32, numerator fraction coefficient
+ * Output:
+ * u32 --- frequency the PLL output
+ */
+static inline u32 mash_dsm(u32 M, u32 N, u32 K)
+{
+ u32 num = ((N + 1) << 10) + K;
+ u32 den = (M + 1) << 10;
+
+ return cal_dsm(num, den);
+}
+
+/*
+ * Description:
+ * calculate PLL frequency following SSFF-DSM (0.25 < fraction < 0.75)
+ * Input:
+ * M --- u32, denominator coefficient
+ * N --- u32, numerator integer coefficient
+ * K --- u32, numerator fraction coefficient
+ * Output:
+ * u32 --- frequency the PLL output
+ */
+static inline u32 ssff_dsm_1(u32 M, u32 N, u32 K)
+{
+ u32 num = ((N + 1) << 11) + K + 512;
+ u32 den = (M + 1) << 11;
+
+ return cal_dsm(num, den);
+}
+
+/*
+ * Description:
+ * calculate PLL frequency following SSFF-DSM
+ * (fraction < 0.125 || fraction > 0.875)
+ * Input:
+ * M --- u32, denominator coefficient
+ * N --- u32, numerator integer coefficient
+ * K --- u32, numerator fraction coefficient
+ * Output:
+ * u32 --- frequency the PLL output
+ */
+static inline u32 ssff_dsm_2(u32 M, u32 N, u32 K)
+{
+ u32 num = K >= 512 ? ((N + 1) << 12) + K - 512 : ((N + 1) << 12) + K + 3584;
+ u32 den = (M + 1) << 12;
+
+ return cal_dsm(num, den);
+}
+
+/*
+ * Description:
+ * calculate PLL frequency
+ * Input:
+ * M --- u32, denominator coefficient
+ * N --- u32, numerator integer coefficient
+ * K --- u32, numerator fraction coefficient
+ * dsmsel --- int, 0: MASH-DSM, 1: SSFF-DSM
+ * phase_div_en --- int, 0: 0.25 < fraction < 0.75
+ * 1: fraction < 0.125 || fraction > 0.875
+ * Output:
+ * u32 --- frequency the PLL output
+ */
+static inline u32 dsm(u32 M, u32 N, u32 K, int dsmsel, int phase_div_en)
+{
+ if ( !dsmsel )
+ return mash_dsm(M, N, K);
+ else
+ if ( !phase_div_en )
+ return ssff_dsm_1(M, N, K);
+ else
+ return ssff_dsm_2(M, N, K);
+}
+
+/*
+ * Description:
+ * get oscillate frequency of PLL0
+ * Input:
+ * none
+ * Output:
+ * u32 --- frequency of PLL0 Fosc
+ */
+static inline u32 cgu_get_pll0_fosc(void)
+{
+ return CGU_PLL_SR0_PLLB ? BASIC_INPUT_CLOCK_FREQUENCY : dsm(CGU_PLL_NMK0_PLLM, CGU_PLL_NMK0_PLLN, CGU_PLL_NMK0_PLLK, CGU_PLL_SR0_DSMSEL, CGU_PLL_SR0_PHASE_DIV_EN);
+}
+
+/*
+ * Description:
+ * get output frequency of PLL0 phase shifter
+ * Input:
+ * none
+ * Output:
+ * u32 --- frequency of PLL0 Fps
+ */
+static inline u32 cgu_get_pll0_fps(void)
+{
+ register u32 fps = cgu_get_pll0_fosc();
+
+ switch ( CGU_PLL_SR0_PLLPSE )
+ {
+ case 1:
+ /* 1.5 */
+ fps = ((fps << 1) + 1) / 3; break;
+ case 2:
+ /* 1.25 */
+ fps = ((fps << 2) + 2) / 5; break;
+ case 3:
+ /* 3.5 */
+ fps = ((fps << 1) + 3) / 7;
+ }
+ return fps;
+}
+
+/*
+ * Description:
+ * get output frequency of PLL0 output divider
+ * Input:
+ * none
+ * Output:
+ * u32 --- frequency of PLL0 Fdiv
+ */
+static inline u32 cgu_get_pll0_fdiv(void)
+{
+ register u32 fdiv = cgu_get_pll0_fosc();
+
+ if ( CGU_PLL_SR0_PLLDEN )
+ fdiv = (fdiv + (CGU_PLL_SR0_PLLDIV + 1) / 2) / (CGU_PLL_SR0_PLLDIV + 1);
+ return fdiv;
+}
+
+/*
+ * Description:
+ * get oscillate frequency of PLL1
+ * Input:
+ * none
+ * Output:
+ * u32 --- frequency of PLL1 Fosc
+ */
+static inline u32 cgu_get_pll1_fosc(void)
+{
+ return CGU_PLL_SR1_PLLB ? BASIC_INPUT_CLOCK_FREQUENCY : dsm(CGU_PLL_NMK1_PLLM, CGU_PLL_NMK1_PLLN, CGU_PLL_NMK1_PLLK, CGU_PLL_SR1_DSMSEL, CGU_PLL_SR1_PHASE_DIV_EN);
+}
+
+/*
+ * Description:
+ * get output frequency of PLL1 phase shifter
+ * Input:
+ * none
+ * Output:
+ * u32 --- frequency of PLL1 Fps
+ */
+static inline u32 cgu_get_pll1_fps(void)
+{
+ register u32 fps = cgu_get_pll1_fosc();
+
+ switch ( CGU_PLL_SR1_PLLPSE )
+ {
+ case 1:
+ /* 1.5 */
+ fps = ((fps << 1) + 1) / 3; break;
+ case 2:
+ /* 1.25 */
+ fps = ((fps << 2) + 2) / 5; break;
+ case 3:
+ /* 3.5 */
+ fps = ((fps << 1) + 3) / 7;
+ }
+ return fps;
+}
+
+/*
+ * Description:
+ * get output frequency of PLL1 output divider
+ * Input:
+ * none
+ * Output:
+ * u32 --- frequency of PLL1 Fdiv
+ */
+static inline u32 cgu_get_pll1_fdiv(void)
+{
+ register u32 fdiv = cgu_get_pll1_fosc();
+
+ if ( CGU_PLL_SR1_PLLDEN )
+ fdiv = (fdiv + (CGU_PLL_SR1_PLLDIV + 1) / 2) / (CGU_PLL_SR1_PLLDIV + 1);
+ return fdiv;
+}
+
+/*
+ * Description:
+ * get oscillate frequency of PLL2
+ * Input:
+ * none
+ * Output:
+ * u32 --- frequency of PLL2 Fosc
+ */
+static inline u32 cgu_get_pll2_fosc(void)
+{
+ u32 ret;
+ u32 temp[2];
+ u32 residue;
+
+ uint64_multiply((CGU_PLL_SR2_PLLN + 1) * 8, cgu_get_pll0_fdiv(), temp);
+ uint64_divide(temp, CGU_PLL_SR2_PLLM + 1, &ret, &residue);
+ if ( (residue << 1) >= CGU_PLL_SR2_PLLM )
+ ret++;
+
+ return ret;
+}
+
+/*
+ * Description:
+ * get output frequency of PLL2 phase shifter
+ * Input:
+ * none
+ * Output:
+ * u32 --- frequency of PLL2 Fps
+ */
+static inline u32 cgu_get_pll2_fps(void)
+{
+ register u32 fps = cgu_get_pll2_fosc();
+
+ if ( CGU_PLL_SR2_PLLPE )
+ {
+ if ( CGU_PLL_SR2_PLLPS )
+ /* 1.25 */
+ fps = ((fps << 3) + 4) / 9;
+ else
+ /* 1.125 */
+ fps = ((fps << 2) + 2) / 5;
+ }
+
+ return fps;
+}
+
+
+/*
+ * ####################################
+ * Global Function
+ * ####################################
+ */
+
+/*
+ * Description:
+ * get frequency of MIPS (0: core, 1: DSP)
+ * Input:
+ * cpu --- int, 0: core, 1: DSP
+ * Output:
+ * u32 --- frequency of MIPS coprocessor (0: core, 1: DSP)
+ */
+u32 cgu_get_mips_clock(int cpu)
+{
+ register u32 ret = cgu_get_pll0_fosc();
+
+ if ( CGU_CRD_CRD )
+ ret = (ret + (CGU_CRD_CRD >> 1)) / (CGU_CRD_CRD + 1);
+ if ( cpu == 0 && CGU_CRD_CRD1 )
+ ret >>= CGU_CRD_CRD1;
+ return ret;
+}
+
+/*
+ * Description:
+ * get frequency of MIPS core
+ * Input:
+ * none
+ * Output:
+ * u32 --- frequency of MIPS core
+ */
+u32 cgu_get_cpu_clock(void)
+{
+ return cgu_get_mips_clock(0);
+}
+
+/*
+ * Description:
+ * get frequency of sub-system and memory controller
+ * Input:
+ * none
+ * Output:
+ * u32 --- frequency of sub-system and memory controller
+ */
+u32 cgu_get_io_region_clock(void)
+{
+ register u32 ret = (CGU_MUX_SUB_SYS > 4) ? cgu_get_pll0_fosc() : cgu_get_mips_clock(1);
+
+ switch ( CGU_MUX_SUB_SYS )
+ {
+ case 0:
+ break;
+ case 1:
+ default:
+ ret = (ret + 1) >> 1; break;
+ case 2:
+ ret = (ret + 1) / 3; break;
+ case 3:
+ ret = (ret + 2) >> 2; break;
+ case 5:
+ ret = ((ret << 1) + 1) / 3; break;
+ case 6:
+ ret = ((ret << 1) + 2) / 5;
+ }
+
+ return ret;
+}
+
+/*
+ * Description:
+ * get frequency of FPI bus
+ * Input:
+ * fpi --- int, 1: FPI bus 1 (FBS1/Fast FPI Bus), 2: FPI bus 2 (FBS2)
+ * Output:
+ * u32 --- frequency of FPI bus
+ */
+u32 cgu_get_fpi_bus_clock(int fpi)
+{
+ register u32 ret = cgu_get_io_region_clock();
+
+ if ( fpi == 2 )
+ ret >>= 1;
+ return ret;
+}
+
+/*
+ * Description:
+ * get frequency of PP32 processor
+ * Input:
+ * none
+ * Output:
+ * u32 --- frequency of PP32 processor
+ */
+u32 cgu_get_pp32_clock(void)
+{
+ register u32 ret;
+
+ switch ( CGU_MUX_PP32 )
+ {
+ case 0:
+ default:
+ ret = ((cgu_get_pll2_fosc() << 2) + 2) / 5; break;
+ case 1:
+ ret = ((cgu_get_pll2_fosc() << 3) + 4) / 9; break;
+ case 2:
+ ret = cgu_get_fpi_bus_clock(1); break;
+ case 3:
+ ret = cgu_get_mips_clock(1);
+ }
+
+ return ret;
+}
+
+/*
+ * Description:
+ * get frequency of PCI bus
+ * Input:
+ * none
+ * Output:
+ * u32 --- frequency of PCI bus
+ */
+u32 cgu_get_pci_clock(void)
+{
+ register u32 ret = 0;
+
+ if ( !CGU_IF_CLK_PCIS )
+ {
+ ret = cgu_get_pll2_fosc();
+ if ( CGU_IF_CLK_PCIF )
+ ret = (ret + 2) / 5;
+ else
+ ret = (ret + 4) / 9;
+ }
+
+ return ret;
+}
+
+/*
+ * Description:
+ * get frequency of ethernet module (MII)
+ * Input:
+ * none
+ * Output:
+ * u32 --- frequency of ethernet module
+ */
+u32 cgu_get_ethernet_clock(void)
+{
+ register u32 ret = 0;
+
+ if ( !CGU_IF_CLK_MIICS )
+ {
+ ret = cgu_get_pll2_fosc();
+ if ( CGU_MUX_MII_CLK )
+ ret = (ret + 3) / 6;
+ else
+ ret = (ret + 6) / 12;
+ }
+
+ return ret;
+}
+
+/*
+ * Description:
+ * get frequency of USB
+ * Input:
+ * none
+ * Output:
+ * u32 --- frequency of USB
+ */
+u32 cgu_get_usb_clock(void)
+{
+ return CGU_IF_CLK_USBCS ? 12000000 : (cgu_get_pll2_fosc() + 12) / 25;
+}
+
+/*
+ * Description:
+ * get frequency of CLK_OUT pin
+ * Input:
+ * clkout --- int, clock out pin number
+ * Output:
+ * u32 --- frequency of CLK_OUT pin
+ */
+u32 cgu_get_clockout(int clkout)
+{
+ u32 fosc1 = cgu_get_pll1_fosc();
+ u32 fosc2 = cgu_get_pll2_fosc();
+
+ if ( clkout > 3 || clkout < 0 )
+ return 0;
+
+ switch ( ((u32)clkout << 2) | GET_BITS(*DANUBE_CGU_IF_CLK, 21 + clkout * 2, 20 + clkout * 2) )
+ {
+ case 0: /* 32.768KHz */
+ case 14:
+ return (fosc1 + 6000) / 12000;
+ case 1: /* 1.536MHz */
+ return (fosc1 + 128) / 256;
+ case 2: /* 2.5MHz */
+ return (fosc2 + 60) / 120;
+ case 3: /* 12MHz */
+ case 5:
+ case 12:
+ return (fosc2 + 12) / 25;
+ case 4: /* 40MHz */
+ return (fosc2 * 2 + 7) / 15;
+ case 6: /* 24MHz */
+ return (fosc2 * 2 + 12) / 25;
+ case 7: /* 48MHz */
+ return (fosc2 * 4 + 12) / 25;
+ case 8: /* 25MHz */
+ case 15:
+ return (fosc2 + 6) / 12;
+ case 9: /* 50MHz */
+ case 13:
+ return (fosc2 + 3) / 6;
+ case 10:/* 30MHz */
+ return (fosc2 + 5) / 10;
+ case 11:/* 60MHz */
+ return (fosc2 + 2) / 5;
+ }
+
+ return 0;
+}
+
+
+/*
+ * ####################################
+ * Init/Cleanup API
+ * ####################################
+ */
+
+/*
+ * Description:
+ * register device
+ * Input:
+ * none
+ * Output:
+ * 0 --- successful
+ * else --- failure, usually it is negative value of error code
+ */
+int __init danube_cgu_init(void)
+{
+ int ret;
+
+ ret = misc_register(&cgu_miscdev);
+ if ( ret )
+ {
+ printk(KERN_ERR "cgu: can't misc_register\n");
+ return ret;
+ }
+ else
+ printk(KERN_INFO "cgu: misc_register on minor = %d\n", cgu_miscdev.minor);
+
+ /*
+ * initialize fake registers to do testing on Amazon
+ */
+#if defined(DEBUG_ON_AMAZON) && DEBUG_ON_AMAZON
+ #ifdef DEBUG_PRINT_INFO
+ #undef DEBUG_PRINT_INFO
+ #endif
+ #define DEBUG_PRINT_INFO 1
+
+ *DANUBE_CGU_DIV = 0x00010019;
+ *DANUBE_CGU_PLL_NMK0 = 0x416002C3;
+ *DANUBE_CGU_PLL_SR0 = 0x74000013;
+ *DANUBE_CGU_PLL_NMK1 = 0x4C60009C;
+ *DANUBE_CGU_PLL_SR1 = 0x54000013;
+ *DANUBE_CGU_PLL_SR2 = 0x58890013;
+ *DANUBE_CGU_IF_CLK = 0x00000000;
+ *DANUBE_CGU_OSC_CTRL = 0x00000000;
+ *DANUBE_CGU_SMD = 0x00000000;
+ *DANUBE_CGU_CRD = 0x00010000;
+ *DANUBE_CGU_CT1SR = 0x00000000;
+ *DANUBE_CGU_CT2SR = CGU_PLL_NMK1_PLLK;
+ *DANUBE_CGU_PCMCR = 0x00000000;
+ *DANUBE_CGU_MUX = 0x00000008;
+#endif // defined(DEBUG_ON_AMAZON) && DEBUG_ON_AMAZON
+
+ /*
+ * for testing only
+ */
+#if defined(DEBUG_PRINT_INFO) && DEBUG_PRINT_INFO
+ printk("pll0 N = %d, M = %d, K = %d, DIV = %d\n", CGU_PLL_NMK0_PLLN, CGU_PLL_NMK0_PLLM, CGU_PLL_NMK0_PLLK, CGU_PLL_SR0_PLLDIV);
+ printk("pll1 N = %d, M = %d, K = %d, DIV = %d\n", CGU_PLL_NMK1_PLLN, CGU_PLL_NMK1_PLLM, CGU_PLL_NMK1_PLLK, CGU_PLL_SR1_PLLDIV);
+ printk("pll2 N = %d, M = %d, DIV = %d\n", CGU_PLL_SR2_PLLN, CGU_PLL_SR2_PLLM, CGU_PLL_SR2_PLLDIV);
+ printk("pll0_fosc = %d\n", cgu_get_pll0_fosc());
+ printk("pll0_fps = %d\n", cgu_get_pll0_fps());
+ printk("pll0_fdiv = %d\n", cgu_get_pll0_fdiv());
+ printk("pll1_fosc = %d\n", cgu_get_pll1_fosc());
+ printk("pll1_fps = %d\n", cgu_get_pll1_fps());
+ printk("pll1_fdiv = %d\n", cgu_get_pll1_fdiv());
+ printk("pll2_fosc = %d\n", cgu_get_pll2_fosc());
+ printk("pll2_fps = %d\n", cgu_get_pll2_fps());
+ printk("mips0 clock = %d\n", cgu_get_mips_clock(0));
+ printk("mips1 clock = %d\n", cgu_get_mips_clock(1));
+ printk("cpu clock = %d\n", cgu_get_cpu_clock());
+ printk("IO region = %d\n", cgu_get_io_region_clock());
+ printk("FPI bus 1 = %d\n", cgu_get_fpi_bus_clock(1));
+ printk("FPI bus 2 = %d\n", cgu_get_fpi_bus_clock(2));
+ printk("PP32 clock = %d\n", cgu_get_pp32_clock());
+ printk("PCI clock = %d\n", cgu_get_pci_clock());
+ printk("Ethernet = %d\n", cgu_get_ethernet_clock());
+ printk("USB clock = %d\n", cgu_get_usb_clock());
+ printk("Clockout0 = %d\n", cgu_get_clockout(0));
+ printk("Clockout1 = %d\n", cgu_get_clockout(1));
+ printk("Clockout2 = %d\n", cgu_get_clockout(2));
+ printk("Clockout3 = %d\n", cgu_get_clockout(3));
+#endif // defined(DEBUG_PRINT_INFO) && DEBUG_PRINT_INFO
+
+ return 0;
+}
+
+/*
+ * Description:
+ * deregister device
+ * Input:
+ * none
+ * Output:
+ * none
+ */
+void __exit danube_cgu_exit(void)
+{
+ int ret;
+
+ ret = misc_deregister(&cgu_miscdev);
+ if ( ret )
+ printk(KERN_ERR "cgu: can't misc_deregister, get error number %d\n", -ret);
+ else
+ printk(KERN_INFO "cgu: misc_deregister successfully\n");
+}
+
+module_init(danube_cgu_init);
+module_exit(danube_cgu_exit);
diff --git a/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/ifx_cgu.h b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/ifx_cgu.h new file mode 100644 index 000000000..78fe21d62 --- /dev/null +++ b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/ifx_cgu.h @@ -0,0 +1,91 @@ +#ifndef __DANUBE_CGU_DEV_H__2005_07_20__14_26__
+#define __DANUBE_CGU_DEV_H__2005_07_20__14_26__
+
+
+/******************************************************************************
+ Copyright (c) 2002, Infineon Technologies. All rights reserved.
+
+ No Warranty
+ Because the program is licensed free of charge, there is no warranty for
+ the program, to the extent permitted by applicable law. Except when
+ otherwise stated in writing the copyright holders and/or other parties
+ provide the program "as is" without warranty of any kind, either
+ expressed or implied, including, but not limited to, the implied
+ warranties of merchantability and fitness for a particular purpose. The
+ entire risk as to the quality and performance of the program is with
+ you. should the program prove defective, you assume the cost of all
+ necessary servicing, repair or correction.
+
+ In no event unless required by applicable law or agreed to in writing
+ will any copyright holder, or any other party who may modify and/or
+ redistribute the program as permitted above, be liable to you for
+ damages, including any general, special, incidental or consequential
+ damages arising out of the use or inability to use the program
+ (including but not limited to loss of data or data being rendered
+ inaccurate or losses sustained by you or third parties or a failure of
+ the program to operate with any other programs), even if such holder or
+ other party has been advised of the possibility of such damages.
+******************************************************************************/
+
+
+/*
+ * ####################################
+ * Definition
+ * ####################################
+ */
+
+/*
+ * ioctl Command
+ */
+#define CGU_IOC_MAGIC 'u'
+#define CGU_GET_CLOCK_RATES _IOW(CGU_IOC_MAGIC, 0, struct cgu_clock_rates)
+#define CGU_IOC_MAXNR 1
+
+
+/*
+ * ####################################
+ * Data Type
+ * ####################################
+ */
+
+/*
+ * Data Type Used to Call ioctl(GET_CLOCK_RATES)
+ */
+struct cgu_clock_rates {
+ u32 mips0;
+ u32 mips1;
+ u32 cpu;
+ u32 io_region;
+ u32 fpi_bus1;
+ u32 fpi_bus2;
+ u32 pp32;
+ u32 pci;
+ u32 ethernet;
+ u32 usb;
+ u32 clockout0;
+ u32 clockout1;
+ u32 clockout2;
+ u32 clockout3;
+};
+
+
+/*
+ * ####################################
+ * Declaration
+ * ####################################
+ */
+
+#if defined(__KERNEL__)
+ extern u32 cgu_get_mips_clock(int);
+ extern u32 cgu_get_cpu_clock(void);
+ extern u32 cgu_get_io_region_clock(void);
+ extern u32 cgu_get_fpi_bus_clock(int);
+ extern u32 cgu_get_pp32_clock(void);
+ extern u32 cgu_get_pci_clock(void);
+ extern u32 cgu_get_ethernet_clock(void);
+ extern u32 cgu_get_usb_clock(void);
+ extern u32 cgu_get_clockout(int);
+#endif // defined(__KERNEL__)
+
+
+#endif // __DANUBE_CGU_DEV_H__2005_07_20__14_26__
diff --git a/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/ifx_clock.c b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/ifx_clock.c new file mode 100644 index 000000000..0a1cdacdc --- /dev/null +++ b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/ifx_clock.c @@ -0,0 +1,91 @@ +/* + * (C) Copyright 2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <asm-mips/danube.h> + + + +/******************************************************************************* +* +* get_cpuclk - returns the frequency of the CPU. +* +* NOTE: +* This functions should be used by the hardware driver to get the correct +* frequency of the CPU. +*/ + +unsigned int danube_get_ddr_hz(void) +{ + switch((*DANUBE_CGU_SYS) & 0x3){ + case 0: + return 166666667; + case 1: + return 133333333; + case 2: + return 111111111; + case 3: + return 83333333; + } +} + + +uint danube_get_cpuclk(void) +{ +#ifdef CONFIG_USE_EMULATOR + return EMULATOR_CPU_SPEED; +#else //NOT CONFIG_USE_EMULATOR + unsigned int ddr_clock=danube_get_ddr_hz(); + switch((*DANUBE_CGU_SYS) & 0xc){ + case 0: + return 333333333; + case 4: + return ddr_clock; + case 8: + return ddr_clock << 1; + default: + break; + /*reserved*/ + } +#endif + +} + + +uint danube_get_fpiclk(void) +{ +#ifdef CONFIG_USE_EMULATOR + unsigned int clkCPU; + clkCPU = danube_get_cpu_hz(); + return clkCPU >> 2; +#else //NOT CONFIG_USE_EMULATOR + unsigned int ddr_clock=danube_get_ddr_hz(); + if ((*DANUBE_CGU_SYS) & 0x40){ + return ddr_clock >> 1; + } + return ddr_clock; +#endif + +} + + diff --git a/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/ifx_cpu.c b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/ifx_cpu.c new file mode 100644 index 000000000..49355de55 --- /dev/null +++ b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/ifx_cpu.c @@ -0,0 +1,5 @@ + +#define IFX_CPU_RESET \ +{ *DANUBE_RCU_RST_REQ |=1<<30; \ +} + diff --git a/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/ifx_start.S b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/ifx_start.S new file mode 100644 index 000000000..17c0b0ae5 --- /dev/null +++ b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/ifx_start.S @@ -0,0 +1,51 @@ +/* + * IFX Platform Dependent CPU Initializations + * - for Danube + */ + +#define IFX_EBU_BOOTCFG_DWORD \ + .word INFINEON_EBU_BOOTCFG; /* EBU init code, fetched during booting */ \ + .word 0x00000000; /* phases of the flash */ + +#define IFX_MORE_RESERVED_VECTORS \ + XVECENT(romExcHandle,0x400); /* Int, CauseIV=1 */ \ + RVECENT(romReserved,129); \ + RVECENT(romReserved,130); \ + RVECENT(romReserved,131); \ + RVECENT(romReserved,132); \ + RVECENT(romReserved,133); \ + RVECENT(romReserved,134); \ + RVECENT(romReserved,135); \ + RVECENT(romReserved,136); \ + RVECENT(romReserved,137); \ + RVECENT(romReserved,138); \ + RVECENT(romReserved,139); \ + RVECENT(romReserved,140); \ + RVECENT(romReserved,141); \ + RVECENT(romReserved,142); \ + RVECENT(romReserved,143); \ + RVECENT(romExcHandle,0x480); /* EJTAG debug exception */ + +#define IFX_RESET_PRECHECK \ + mfc0 k0, CP0_EBASE; \ + and k0, EBASEF_CPUNUM; \ + bne k0, zero, ifx_mips_handler_1; \ + nop; + +#define IFX_CPU_EXTRA_INIT \ + mfc0 k0, CP0_CONFIG, 7; \ + li k1, 0x04; \ + or k0, k1; \ + mtc0 k0, CP0_CONFIG, 7; + +#define IFX_CACHE_OPER_MODE \ + li t0, CONF_CM_CACHABLE_NO_WA; + +/* + * Stop VCPU + */ +#define IFX_MIPS_HANDLER_1 \ + wait; \ + b ifx_mips_handler_1; \ + nop; + diff --git a/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/incaip_clock.c b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/incaip_clock.c new file mode 100644 index 000000000..1b0a0fd39 --- /dev/null +++ b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/incaip_clock.c @@ -0,0 +1,120 @@ +/* + * (C) Copyright 2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifdef CONFIG_INCA_IP + +#include <common.h> +#include <asm/inca-ip.h> + + +/******************************************************************************* +* +* get_cpuclk - returns the frequency of the CPU. +* +* Gets the value directly from the INCA-IP hardware. +* +* RETURNS: +* 150.000.000 for 150 MHz +* 133.333.333 for 133 Mhz (= 400MHz/3) +* 100.000.000 for 100 Mhz (= 400MHz/4) +* NOTE: +* This functions should be used by the hardware driver to get the correct +* frequency of the CPU. Don't use the macros, which are set to init the CPU +* frequency in the ROM code. +*/ +uint incaip_get_cpuclk (void) +{ + /*-------------------------------------------------------------------------*/ + /* CPU Clock Input Multiplexer (MUX I) */ + /* Multiplexer MUX I selects the maximum input clock to the CPU. */ + /*-------------------------------------------------------------------------*/ + if (*((volatile ulong *) INCA_IP_CGU_CGU_MUXCR) & + INCA_IP_CGU_CGU_MUXCR_MUXI) { + /* MUX I set to 150 MHz clock */ + return 150000000; + } else { + /* MUX I set to 100/133 MHz clock */ + if (*((volatile ulong *) INCA_IP_CGU_CGU_DIVCR) & 0x40) { + /* Division value is 1/3, maximum CPU operating */ + /* frequency is 133.3 MHz */ + return 133333333; + } else { + /* Division value is 1/4, maximum CPU operating */ + /* frequency is 100 MHz */ + return 100000000; + } + } +} + +/******************************************************************************* +* +* get_fpiclk - returns the frequency of the FPI bus. +* +* Gets the value directly from the INCA-IP hardware. +* +* RETURNS: Frquency in Hz +* +* NOTE: +* This functions should be used by the hardware driver to get the correct +* frequency of the CPU. Don't use the macros, which are set to init the CPU +* frequency in the ROM code. +* The calculation for the +*/ +uint incaip_get_fpiclk (void) +{ + uint clkCPU; + + clkCPU = incaip_get_cpuclk (); + + switch (*((volatile ulong *) INCA_IP_CGU_CGU_DIVCR) & 0xC) { + case 0x4: + return clkCPU >> 1; /* devided by 2 */ + break; + case 0x8: + return clkCPU >> 2; /* devided by 4 */ + break; + default: + return clkCPU; + break; + } +} + +int incaip_set_cpuclk (void) +{ + extern void ebu_init(long); + extern void cgu_init(long); + extern void sdram_init(long); + char tmp[64]; + ulong cpuclk; + + if (getenv_r ("cpuclk", tmp, sizeof (tmp)) > 0) { + cpuclk = simple_strtoul (tmp, NULL, 10) * 1000000; + cgu_init (cpuclk); + ebu_init (cpuclk); + sdram_init (cpuclk); + } + + return 0; +} + +#endif /* CONFIG_INCA_IP */ diff --git a/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/incaip_wdt.S b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/incaip_wdt.S new file mode 100644 index 000000000..0c6b5e201 --- /dev/null +++ b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/incaip_wdt.S @@ -0,0 +1,75 @@ +/* + * INCA-IP Watchdog timer management code. + * + * Copyright (c) 2003 Wolfgang Denk <wd@denx.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + + +#include <config.h> +#include <version.h> +#include <asm/regdef.h> + +#ifdef CONFIG_INCA_IP + +#define WD_BASE 0xb8000000 +#define WD_CON0(value) 0x0020(value) +#define WD_CON1(value) 0x0024(value) +#define WD_DISABLE 0x00000008 +#define WD_ENABLE 0x00000000 +#define WD_WRITE_PW 0xFFFC00F8 +#define WD_WRITE_ENDINIT 0xFFFC00F3 +#define WD_WRITE_INIT 0xFFFC00F2 + + + .globl disable_incaip_wdt +disable_incaip_wdt: + li t0, WD_BASE + + /* Calculate password. + */ + lw t2, WD_CON1(t0) + and t2, 0xC + + lw t3, WD_CON0(t0) + and t3, 0xFFFFFF01 + + or t3, t2 + or t3, 0xF0 + + sw t3, WD_CON0(t0) /* write password */ + + /* Clear ENDINIT. + */ + li t1, WD_WRITE_INIT + sw t1, WD_CON0(t0) + + + li t1, WD_DISABLE + sw t1, WD_CON1(t0) /* disable watchdog */ + li t1, WD_WRITE_PW + sw t1, WD_CON0(t0) /* write password */ + li t1, WD_WRITE_ENDINIT + sw t1, WD_CON0(t0) /* end command */ + + j ra + nop + +#endif /* CONFIG_INCA_IP */ diff --git a/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/interrupts.c b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/interrupts.c new file mode 100644 index 000000000..87f7a9f7e --- /dev/null +++ b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/interrupts.c @@ -0,0 +1,33 @@ +/* + * (C) Copyright 2003 + * Wolfgang Denk, DENX Software Engineering, <wd@denx.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> + +void enable_interrupts(void) +{ +} + +int disable_interrupts(void) +{ + return 0; +} diff --git a/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/start.S b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/start.S new file mode 100644 index 000000000..b1ee491d3 --- /dev/null +++ b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/start.S @@ -0,0 +1,442 @@ +/* + * Startup Code for MIPS32 CPU-core + * + * Copyright (c) 2003 Wolfgang Denk <wd@denx.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + + +#include <config.h> +#include <version.h> +#include <asm/regdef.h> +#include <asm/mipsregs.h> +#if defined(CONFIG_IFX_MIPS) +#include "ifx_start.S" +#endif + +#define RVECENT(f,n) \ + b f; nop +#define XVECENT(f,bev) \ + b f ; \ + li k0,bev + + .set noreorder + + .globl _start + .text +_start: + RVECENT(reset,0) /* U-boot entry point */ + RVECENT(reset,1) /* software reboot */ +#if defined(CONFIG_INCA_IP) + .word INFINEON_EBU_BOOTCFG /* EBU init code, fetched during booting */ + .word 0x00000000 /* phase of the flash */ +#elif defined(CONFIG_IFX_MIPS) && defined(IFX_EBU_BOOTCFG_DWORD) + IFX_EBU_BOOTCFG_DWORD +#elif defined(CONFIG_PURPLE) + .word INFINEON_EBU_BOOTCFG /* EBU init code, fetched during booting */ + .word INFINEON_EBU_BOOTCFG /* EBU init code, fetched during booting */ +#else + RVECENT(romReserved,2) +#endif + RVECENT(romReserved,3) + RVECENT(romReserved,4) + RVECENT(romReserved,5) + RVECENT(romReserved,6) + RVECENT(romReserved,7) + RVECENT(romReserved,8) + RVECENT(romReserved,9) + RVECENT(romReserved,10) + RVECENT(romReserved,11) + RVECENT(romReserved,12) + RVECENT(romReserved,13) + RVECENT(romReserved,14) + RVECENT(romReserved,15) + RVECENT(romReserved,16) + RVECENT(romReserved,17) + RVECENT(romReserved,18) + RVECENT(romReserved,19) + RVECENT(romReserved,20) + RVECENT(romReserved,21) + RVECENT(romReserved,22) + RVECENT(romReserved,23) + RVECENT(romReserved,24) + RVECENT(romReserved,25) + RVECENT(romReserved,26) + RVECENT(romReserved,27) + RVECENT(romReserved,28) + RVECENT(romReserved,29) + RVECENT(romReserved,30) + RVECENT(romReserved,31) + RVECENT(romReserved,32) + RVECENT(romReserved,33) + RVECENT(romReserved,34) + RVECENT(romReserved,35) + RVECENT(romReserved,36) + RVECENT(romReserved,37) + RVECENT(romReserved,38) + RVECENT(romReserved,39) + RVECENT(romReserved,40) + RVECENT(romReserved,41) + RVECENT(romReserved,42) + RVECENT(romReserved,43) + RVECENT(romReserved,44) + RVECENT(romReserved,45) + RVECENT(romReserved,46) + RVECENT(romReserved,47) + RVECENT(romReserved,48) + RVECENT(romReserved,49) + RVECENT(romReserved,50) + RVECENT(romReserved,51) + RVECENT(romReserved,52) + RVECENT(romReserved,53) + RVECENT(romReserved,54) + RVECENT(romReserved,55) + RVECENT(romReserved,56) + RVECENT(romReserved,57) + RVECENT(romReserved,58) + RVECENT(romReserved,59) + RVECENT(romReserved,60) + RVECENT(romReserved,61) + RVECENT(romReserved,62) + RVECENT(romReserved,63) + XVECENT(romExcHandle,0x200) /* bfc00200: R4000 tlbmiss vector */ + RVECENT(romReserved,65) + RVECENT(romReserved,66) + RVECENT(romReserved,67) + RVECENT(romReserved,68) + RVECENT(romReserved,69) + RVECENT(romReserved,70) + RVECENT(romReserved,71) + RVECENT(romReserved,72) + RVECENT(romReserved,73) + RVECENT(romReserved,74) + RVECENT(romReserved,75) + RVECENT(romReserved,76) + RVECENT(romReserved,77) + RVECENT(romReserved,78) + RVECENT(romReserved,79) + XVECENT(romExcHandle,0x280) /* bfc00280: R4000 xtlbmiss vector */ + RVECENT(romReserved,81) + RVECENT(romReserved,82) + RVECENT(romReserved,83) + RVECENT(romReserved,84) + RVECENT(romReserved,85) + RVECENT(romReserved,86) + RVECENT(romReserved,87) + RVECENT(romReserved,88) + RVECENT(romReserved,89) + RVECENT(romReserved,90) + RVECENT(romReserved,91) + RVECENT(romReserved,92) + RVECENT(romReserved,93) + RVECENT(romReserved,94) + RVECENT(romReserved,95) + XVECENT(romExcHandle,0x300) /* bfc00300: R4000 cache vector */ + RVECENT(romReserved,97) + RVECENT(romReserved,98) + RVECENT(romReserved,99) + RVECENT(romReserved,100) + RVECENT(romReserved,101) + RVECENT(romReserved,102) + RVECENT(romReserved,103) + RVECENT(romReserved,104) + RVECENT(romReserved,105) + RVECENT(romReserved,106) + RVECENT(romReserved,107) + RVECENT(romReserved,108) + RVECENT(romReserved,109) + RVECENT(romReserved,110) + RVECENT(romReserved,111) + XVECENT(romExcHandle,0x380) /* bfc00380: R4000 general vector */ + RVECENT(romReserved,113) + RVECENT(romReserved,114) + RVECENT(romReserved,115) + RVECENT(romReserved,116) + RVECENT(romReserved,116) + RVECENT(romReserved,118) + RVECENT(romReserved,119) + RVECENT(romReserved,120) + RVECENT(romReserved,121) + RVECENT(romReserved,122) + RVECENT(romReserved,123) + RVECENT(romReserved,124) + RVECENT(romReserved,125) + RVECENT(romReserved,126) + RVECENT(romReserved,127) + + /* We hope there are no more reserved vectors! + * 128 * 8 == 1024 == 0x400 + * so this is address R_VEC+0x400 == 0xbfc00400 + */ +#if defined(CONFIG_IFX_MIPS) && defined(IFX_MORE_RESERVED_VECTORS) + IFX_MORE_RESERVED_VECTORS +#else +#ifdef CONFIG_PURPLE +/* 0xbfc00400 */ + .word 0xdc870000 + .word 0xfca70000 + .word 0x20840008 + .word 0x20a50008 + .word 0x20c6ffff + .word 0x14c0fffa + .word 0x00000000 + .word 0x03e00008 + .word 0x00000000 + .word 0x00000000 +/* 0xbfc00428 */ + .word 0xdc870000 + .word 0xfca70000 + .word 0x20840008 + .word 0x20a50008 + .word 0x20c6ffff + .word 0x14c0fffa + .word 0x00000000 + .word 0x03e00008 + .word 0x00000000 + .word 0x00000000 +#endif /* CONFIG_PURPLE */ +#endif /* CONFIG_IFX_MIPS */ + .align 4 +reset: +#if defined(CONFIG_IFX_MIPS) && defined(IFX_RESET_PRECHECK) + IFX_RESET_PRECHECK +#endif + /* Clear watch registers. + */ + mtc0 zero, CP0_WATCHLO + mtc0 zero, CP0_WATCHHI + + /* STATUS register */ +#ifdef CONFIG_TB0229 + li k0, ST0_CU0 +#else + mfc0 k0, CP0_STATUS +#endif + li k1, ~ST0_IE + and k0, k1 + mtc0 k0, CP0_STATUS + + /* CAUSE register */ + mtc0 zero, CP0_CAUSE + +#if defined(CONFIG_IFX_MIPS) && defined(IFX_CPU_EXTRA_INIT) + IFX_CPU_EXTRA_INIT +#endif + + /* Init Timer */ + mtc0 zero, CP0_COUNT + mtc0 zero, CP0_COMPARE + + /* CONFIG0 register */ + li t0, CONF_CM_UNCACHED + mtc0 t0, CP0_CONFIG + + /* Initialize GOT pointer. + */ + bal 1f + nop + .word _GLOBAL_OFFSET_TABLE_ + 1: + move gp, ra + lw t1, 0(ra) + move gp, t1 + +#ifdef CONFIG_INCA_IP + /* Disable INCA-IP Watchdog. + */ + la t9, disable_incaip_wdt + jalr t9 + nop +#endif + + /* Initialize any external memory. + */ + la t9, lowlevel_init + jalr t9 + nop + + /* Initialize caches... + */ + la t9, mips_cache_reset + jalr t9 + nop + + /* ... and enable them. + */ +#if defined(CONFIG_IFX_MIPS) && defined(IFX_CACHE_OPER_MODE) + IFX_CACHE_OPER_MODE +#else + li t0, CONF_CM_CACHABLE_NONCOHERENT +#endif + mtc0 t0, CP0_CONFIG + + + /* Set up temporary stack. + */ + li a0, CFG_INIT_SP_OFFSET + la t9, mips_cache_lock + jalr t9 + nop + + li t0, CFG_SDRAM_BASE + CFG_INIT_SP_OFFSET + la sp, 0(t0) + + la t9, board_init_f + j t9 + nop + +#ifdef CFG_HEAD_CODE +/* + * void jump_unconditional (addr) + * This function simply jumps to the location pointed by a0. + * a0 = target_location + * + */ + .globl jump_unconditional + .ent jump_unconditional +jump_unconditional: + move t9, a0 + j t9 + nop + .end jump_unconditional + +#endif + +/* + * void relocate_code (addr_sp, gd, addr_moni) + * + * This "function" does not return, instead it continues in RAM + * after relocating the monitor code. + * + * a0 = addr_sp + * a1 = gd + * a2 = destination address + */ + .globl relocate_code + .ent relocate_code +relocate_code: + move sp, a0 /* Set new stack pointer */ + +#ifdef CFG_HEAD_CODE + li t0, CFG_HEAD_BASE +#else + li t0, CFG_MONITOR_BASE +#endif + la t3, in_ram + lw t2, -12(t3) /* t2 <-- uboot_end_data */ + move t1, a2 + + /* + * Fix GOT pointer: + * + * New GOT-PTR = (old GOT-PTR - CFG_MONITOR_BASE) + Destination Address + */ + move t6, gp +#ifdef CFG_HEAD_CODE + sub gp, CFG_HEAD_BASE +#else + sub gp, CFG_MONITOR_BASE +#endif + add gp, a2 /* gp now adjusted */ + sub t6, gp, t6 /* t6 <-- relocation offset */ + + /* + * t0 = source address + * t1 = target address + * t2 = source end address + */ + /* On the purple board we copy the code earlier in a special way + * in order to solve flash problems + */ +#ifndef CONFIG_PURPLE +1: + lw t3, 0(t0) + sw t3, 0(t1) + addu t0, 4 + ble t0, t2, 1b + addu t1, 4 /* delay slot */ +#endif + + /* If caches were enabled, we would have to flush them here. + */ + + /* Jump to where we've relocated ourselves. + */ + addi t0, a2, in_ram - _start + j t0 + nop + + .word uboot_end_data + .word uboot_end + .word num_got_entries + +in_ram: + /* Now we want to update GOT. + */ + lw t3, -4(t0) /* t3 <-- num_got_entries */ + addi t4, gp, 8 /* Skipping first two entries. */ + li t2, 2 +1: + lw t1, 0(t4) + beqz t1, 2f + add t1, t6 + sw t1, 0(t4) +2: + addi t2, 1 + blt t2, t3, 1b + addi t4, 4 /* delay slot */ + + /* Clear BSS. + */ + lw t1, -12(t0) /* t1 <-- uboot_end_data */ + lw t2, -8(t0) /* t2 <-- uboot_end */ + add t1, t6 /* adjust pointers */ + add t2, t6 + + sub t1, 4 +1: addi t1, 4 + bltl t1, t2, 1b + sw zero, 0(t1) /* delay slot */ + + move a0, a1 + la t9, board_init_r + j t9 + move a1, a2 /* delay slot */ + + .end relocate_code + + + /* Exception handlers. + */ +romReserved: + b romReserved + +romExcHandle: + b romExcHandle + + /* Additional handlers. + */ +#if defined(CONFIG_IFX_MIPS) +#if defined(IFX_MIPS_HANDLER_1) +ifx_mips_handler_1: + IFX_MIPS_HANDLER_1 +#endif +#endif + diff --git a/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/start_bootstrap.S b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/start_bootstrap.S new file mode 100644 index 000000000..cd7a13fab --- /dev/null +++ b/target/linux/ifxmips/image/u-boot/files/cpu/mips/danube/start_bootstrap.S @@ -0,0 +1,428 @@ +/* + * Startup Code for MIPS32 CPU-core + * + * Copyright (c) 2003 Wolfgang Denk <wd@denx.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + + +#include <config.h> +#include <version.h> +#include <asm/regdef.h> +#include <asm/mipsregs.h> + + +#define RVECENT(f,n) \ + b f; nop +#define XVECENT(f,bev) \ + b f ; \ + li k0,bev + + .set noreorder + + .globl _start_bootstrap + .text +_start_bootstrap: + RVECENT(reset,0) /* U-boot entry point */ + RVECENT(reset,1) /* software reboot */ +#if defined(CONFIG_INCA_IP) || defined(CONFIG_INCA_IP2) + .word INFINEON_EBU_BOOTCFG /* EBU init code, fetched during booting */ + .word 0x00000000 /* phase of the flash */ +#elif defined(CONFIG_PURPLE) + .word INFINEON_EBU_BOOTCFG /* EBU init code, fetched during booting */ + .word INFINEON_EBU_BOOTCFG /* EBU init code, fetched during booting */ +#elif defined(CONFIG_DANUBE) + + .org 0x10 + .word INFINEON_EBU_BOOTCFG /* EBU init code, fetched during booting */ + .word 0x00000000 /* phase of the flash */ + + .org 0x18 + .word 0x312E3000 /* version x.x */ + .word 0x00000000 /* phase of the flash */ +#else + RVECENT(romReserved,2) +#endif + RVECENT(romReserved,3) + RVECENT(romReserved,4) + RVECENT(romReserved,5) + RVECENT(romReserved,6) + RVECENT(romReserved,7) + RVECENT(romReserved,8) + RVECENT(romReserved,9) + RVECENT(romReserved,10) + RVECENT(romReserved,11) + RVECENT(romReserved,12) + RVECENT(romReserved,13) + RVECENT(romReserved,14) + RVECENT(romReserved,15) + RVECENT(romReserved,16) + RVECENT(romReserved,17) + RVECENT(romReserved,18) + RVECENT(romReserved,19) + RVECENT(romReserved,20) + RVECENT(romReserved,21) + RVECENT(romReserved,22) + RVECENT(romReserved,23) + RVECENT(romReserved,24) + RVECENT(romReserved,25) + RVECENT(romReserved,26) + RVECENT(romReserved,27) + RVECENT(romReserved,28) + RVECENT(romReserved,29) + RVECENT(romReserved,30) + RVECENT(romReserved,31) + RVECENT(romReserved,32) + RVECENT(romReserved,33) + RVECENT(romReserved,34) + RVECENT(romReserved,35) + RVECENT(romReserved,36) + RVECENT(romReserved,37) + RVECENT(romReserved,38) + RVECENT(romReserved,39) + RVECENT(romReserved,40) + RVECENT(romReserved,41) + RVECENT(romReserved,42) + RVECENT(romReserved,43) + RVECENT(romReserved,44) + RVECENT(romReserved,45) + RVECENT(romReserved,46) + RVECENT(romReserved,47) + RVECENT(romReserved,48) + RVECENT(romReserved,49) + RVECENT(romReserved,50) + RVECENT(romReserved,51) + RVECENT(romReserved,52) + RVECENT(romReserved,53) + RVECENT(romReserved,54) + RVECENT(romReserved,55) + RVECENT(romReserved,56) + RVECENT(romReserved,57) + RVECENT(romReserved,58) + RVECENT(romReserved,59) + RVECENT(romReserved,60) + RVECENT(romReserved,61) + RVECENT(romReserved,62) + RVECENT(romReserved,63) + XVECENT(romExcHandle,0x200) /* bfc00200: R4000 tlbmiss vector */ + RVECENT(romReserved,65) + RVECENT(romReserved,66) + RVECENT(romReserved,67) + RVECENT(romReserved,68) + RVECENT(romReserved,69) + RVECENT(romReserved,70) + RVECENT(romReserved,71) + RVECENT(romReserved,72) + RVECENT(romReserved,73) + RVECENT(romReserved,74) + RVECENT(romReserved,75) + RVECENT(romReserved,76) + RVECENT(romReserved,77) + RVECENT(romReserved,78) + RVECENT(romReserved,79) + XVECENT(romExcHandle,0x280) /* bfc00280: R4000 xtlbmiss vector */ + RVECENT(romReserved,81) + RVECENT(romReserved,82) + RVECENT(romReserved,83) + RVECENT(romReserved,84) + RVECENT(romReserved,85) + RVECENT(romReserved,86) + RVECENT(romReserved,87) + RVECENT(romReserved,88) + RVECENT(romReserved,89) + RVECENT(romReserved,90) + RVECENT(romReserved,91) + RVECENT(romReserved,92) + RVECENT(romReserved,93) + RVECENT(romReserved,94) + RVECENT(romReserved,95) + XVECENT(romExcHandle,0x300) /* bfc00300: R4000 cache vector */ + RVECENT(romReserved,97) + RVECENT(romReserved,98) + RVECENT(romReserved,99) + RVECENT(romReserved,100) + RVECENT(romReserved,101) + RVECENT(romReserved,102) + RVECENT(romReserved,103) + RVECENT(romReserved,104) + RVECENT(romReserved,105) + RVECENT(romReserved,106) + RVECENT(romReserved,107) + RVECENT(romReserved,108) + RVECENT(romReserved,109) + RVECENT(romReserved,110) + RVECENT(romReserved,111) + XVECENT(romExcHandle,0x380) /* bfc00380: R4000 general vector */ + RVECENT(romReserved,113) + RVECENT(romReserved,114) + RVECENT(romReserved,115) + RVECENT(romReserved,116) + RVECENT(romReserved,116) + RVECENT(romReserved,118) + RVECENT(romReserved,119) + RVECENT(romReserved,120) + RVECENT(romReserved,121) + RVECENT(romReserved,122) + RVECENT(romReserved,123) + RVECENT(romReserved,124) + RVECENT(romReserved,125) + RVECENT(romReserved,126) + RVECENT(romReserved,127) + + /* We hope there are no more reserved vectors! + * 128 * 8 == 1024 == 0x400 + * so this is address R_VEC+0x400 == 0xbfc00400 + */ +#ifdef CONFIG_PURPLE +/* 0xbfc00400 */ + .word 0xdc870000 + .word 0xfca70000 + .word 0x20840008 + .word 0x20a50008 + .word 0x20c6ffff + .word 0x14c0fffa + .word 0x00000000 + .word 0x03e00008 + .word 0x00000000 + .word 0x00000000 +/* 0xbfc00428 */ + .word 0xdc870000 + .word 0xfca70000 + .word 0x20840008 + .word 0x20a50008 + .word 0x20c6ffff + .word 0x14c0fffa + .word 0x00000000 + .word 0x03e00008 + .word 0x00000000 + .word 0x00000000 +#endif /* CONFIG_PURPLE */ + .align 4 +reset: +#ifdef CONFIG_INCA_IP2 + /* Check for Host or Voice CPU */ + + mfc0 k0, CP0_EBASE + and k0, EBASEF_CPUNUM + srl k0, EBASEB_CPUNUM + subu k0, EBASE_CPU_HOST + bne k0, zero, voice_reset_handler + nop + +#endif + + /* Clear watch registers. + */ + mtc0 zero, CP0_WATCHLO + mtc0 zero, CP0_WATCHHI + + /* STATUS register */ +#ifdef CONFIG_TB0229 + li k0, ST0_CU0 +#else + mfc0 k0, CP0_STATUS +#endif + li k1, ~ST0_IE + and k0, k1 + mtc0 k0, CP0_STATUS + + /* CAUSE register */ + mtc0 zero, CP0_CAUSE + +#ifdef CONFIG_INCA_IP2 + /* CONFIG7 register */ + mfc0 k0, CP0_CONFIG, 7 + li k1, 4 /* Disable RPS due to E83 bug of 24KEC */ + or k0, k1 + mtc0 k0, CP0_CONFIG, 7 +#endif + /* Init Timer */ + mtc0 zero, CP0_COUNT + mtc0 zero, CP0_COMPARE + + /* CONFIG0 register */ + li t0, CONF_CM_UNCACHED + mtc0 t0, CP0_CONFIG + + /* Initialize GOT pointer. + */ + bal 1f + nop + .word _GLOBAL_OFFSET_TABLE_ + 1: + move gp, ra + lw t1, 0(ra) + move gp, t1 + +#ifdef CONFIG_INCA_IP + /* Disable INCA-IP Watchdog. + */ + la t9, disable_incaip_wdt + jalr t9 + nop +#endif + + /* Initialize any external memory. + */ + la t9, lowlevel_init + jalr t9 + nop + + /* Initialize caches... + */ + la t9, mips_cache_reset + jalr t9 + nop + + /* ... and enable them. + */ +#ifdef CONFIG_MIPS_FORCE_CACHE_WRITE_THROUGH + li t0, CONF_CM_CACHABLE_NO_WA +#else + li t0, CONF_CM_CACHABLE_NONCOHERENT +#endif + mtc0 t0, CP0_CONFIG + + + /* Set up temporary stack. + */ + li a0, CFG_INIT_SP_OFFSET + la t9, mips_cache_lock + jalr t9 + nop + + li t0, CFG_SDRAM_BASE + CFG_INIT_SP_OFFSET + la sp, 0(t0) + + la t9, bootstrap_board_init_f + j t9 + nop + + +/* + * void bootstrap_relocate_code (addr_sp, gd, addr_moni) + * + * This "function" does not return, instead it continues in RAM + * after relocating the monitor code. + * + * a0 = addr_sp + * a1 = gd + * a2 = destination address + */ + .globl bootstrap_relocate_code + .ent bootstrap_relocate_code +bootstrap_relocate_code: + move sp, a0 /* Set new stack pointer */ + + li t0, BOOTSTRAP_CFG_MONITOR_BASE + la t3, in_ram + lw t2, -12(t3) /* t2 <-- uboot_end_data_bootsrap */ + move t1, a2 + + /* + * Fix GOT pointer: + * + * New GOT-PTR = (old GOT-PTR - BOOTSTRAP_CFG_MONITOR_BASE) + Destination Address + */ + move t6, gp + sub gp, BOOTSTRAP_CFG_MONITOR_BASE + add gp, a2 /* gp now adjusted */ + sub t6, gp, t6 /* t6 <-- relocation offset */ + + /* + * t0 = source address + * t1 = target address + * t2 = source end address + */ + /* On the purple board we copy the code earlier in a special way + * in order to solve flash problems + */ +#ifndef CONFIG_PURPLE +1: + lw t3, 0(t0) + sw t3, 0(t1) + addu t0, 4 + ble t0, t2, 1b + addu t1, 4 /* delay slot */ +#endif + + /* If caches were enabled, we would have to flush them here. + */ + + /* Jump to where we've relocated ourselves. + */ + addi t0, a2, in_ram - _start_bootstrap + j t0 + nop + + .word uboot_end_data_bootstrap + .word uboot_end_bootstrap + .word num_got_entries + +in_ram: + /* Now we want to update GOT. + */ + lw t3, -4(t0) /* t3 <-- num_got_entries */ + addi t4, gp, 8 /* Skipping first two entries. */ + li t2, 2 +1: + lw t1, 0(t4) + beqz t1, 2f + add t1, t6 + sw t1, 0(t4) +2: + addi t2, 1 + blt t2, t3, 1b + addi t4, 4 /* delay slot */ + + /* Clear BSS. + */ + lw t1, -12(t0) /* t1 <-- uboot_end_data_bootstrap */ + lw t2, -8(t0) /* t2 <-- uboot_end_bootstrap */ + add t1, t6 /* adjust pointers */ + add t2, t6 + + sub t1, 4 +1: addi t1, 4 + bltl t1, t2, 1b + sw zero, 0(t1) /* delay slot */ + + move a0, a1 + la t9, bootstrap_board_init_r + j t9 + move a1, a2 /* delay slot */ + + .end bootstrap_relocate_code + + + /* Exception handlers. + */ +romReserved: + b romReserved + +romExcHandle: + b romExcHandle + +#ifdef CONFIG_INCA_IP2 +voice_reset_handler: + wait + b voice_reset_handler + nop +#endif |