diff options
Diffstat (limited to 'target/linux/brcm63xx/files/arch/mips/bcm963xx')
9 files changed, 0 insertions, 1513 deletions
diff --git a/target/linux/brcm63xx/files/arch/mips/bcm963xx/Makefile b/target/linux/brcm63xx/files/arch/mips/bcm963xx/Makefile deleted file mode 100644 index a9d1e5597..000000000 --- a/target/linux/brcm63xx/files/arch/mips/bcm963xx/Makefile +++ /dev/null @@ -1,9 +0,0 @@ -# -# Makefile for the Broadcom BCM963xx SoC specific parts of the kernel -# -# Copyright (C) 2004 Broadcom Corporation -# -obj-y := irq.o prom.o setup.o time.o ser_init.o int-handler.o info.o wdt.o - -SRCBASE := $(TOPDIR) -EXTRA_CFLAGS += -I$(SRCBASE)/include diff --git a/target/linux/brcm63xx/files/arch/mips/bcm963xx/info.c b/target/linux/brcm63xx/files/arch/mips/bcm963xx/info.c deleted file mode 100644 index d50b601e2..000000000 --- a/target/linux/brcm63xx/files/arch/mips/bcm963xx/info.c +++ /dev/null @@ -1,102 +0,0 @@ -/* - * $Id$ - * - * Copyright (C) 2007 OpenWrt.org - * Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org> - * Copyright (C) 2007 Florian Fainelli <florian@openwrt.org> - * - * 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. - */ - -#include <linux/types.h> -#include <linux/autoconf.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/module.h> - -#include <asm/bootinfo.h> -#include <asm/addrspace.h> -#include <asm/string.h> -#include <asm/mach-bcm963xx/bootloaders.h> - -static char *boot_loader_names[BOOT_LOADER_LAST+1] = { - [BOOT_LOADER_UNKNOWN] = "Unknown", - [BOOT_LOADER_CFE] = "CFE", - [BOOT_LOADER_REDBOOT] = "RedBoot", - [BOOT_LOADER_CFE2] = "CFEv2" -}; - -/* boot loaders specific definitions */ -#define CFE_EPTSEAL 0x43464531 /* CFE1 is the magic number to recognize CFE from other bootloaders */ - -int boot_loader_type; -/* - * Boot loader detection routines - */ -static int __init detect_cfe(void) -{ - /* - * This method only works, when we are booted directly from the CFE. - */ - uint32_t cfe_handle = (uint32_t) fw_arg0; - uint32_t cfe_a1_val = (uint32_t) fw_arg1; - uint32_t cfe_entry = (uint32_t) fw_arg2; - uint32_t cfe_seal = (uint32_t) fw_arg3; - - /* Check for CFE by finding the CFE magic number */ - if (cfe_seal != CFE_EPTSEAL) - /* We are not booted from CFE */ - return 0; - - /* cfe_a1_val must be 0, because only one CPU present in the ADM5120 SoC */ - if (cfe_a1_val != 0) - return 0; - - /* The cfe_handle, and the cfe_entry must be kernel mode addresses */ - if ((cfe_handle < KSEG0) || (cfe_entry < KSEG0)) - return 0; - - return 1; -} - -static int __init detect_redboot(void) -{ - /* On Inventel Livebox, the boot loader is passed as a command line argument, check for it */ - if (!strncmp(arcs_cmdline, "boot_loader=RedBoot", 19)) - return 1; - return 0; -} - -void __init detect_bootloader(void) -{ - if (detect_cfe()) { - boot_loader_type = BOOT_LOADER_CFE; - } - - if (detect_redboot()) { - boot_loader_type = BOOT_LOADER_REDBOOT; - } - else { - /* Some devices are using CFE, but it is not detected as is */ - boot_loader_type = BOOT_LOADER_CFE2; - } - printk("Boot loader is : %s\n", boot_loader_names[boot_loader_type]); -} - -void __init detect_board(void) -{ - switch (boot_loader_type) - { - case BOOT_LOADER_CFE: - break; - case BOOT_LOADER_REDBOOT: - break; - default: - break; - } -} - -EXPORT_SYMBOL(boot_loader_type); diff --git a/target/linux/brcm63xx/files/arch/mips/bcm963xx/int-handler.S b/target/linux/brcm63xx/files/arch/mips/bcm963xx/int-handler.S deleted file mode 100644 index a7a9c9d20..000000000 --- a/target/linux/brcm63xx/files/arch/mips/bcm963xx/int-handler.S +++ /dev/null @@ -1,59 +0,0 @@ -/* -<:copyright-gpl - Copyright 2002 Broadcom Corp. All Rights Reserved. - - 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. -:> -*/ -/* - * Generic interrupt handler for Broadcom MIPS boards - */ - -#include <linux/autoconf.h> - -#include <asm/asm.h> -#include <asm/mipsregs.h> -#include <asm/regdef.h> -#include <asm/stackframe.h> - -/* - * MIPS IRQ Source - * -------- ------ - * 0 Software (ignored) - * 1 Software (ignored) - * 2 Combined hardware interrupt (hw0) - * 3 Hardware - * 4 Hardware - * 5 Hardware - * 6 Hardware - * 7 R4k timer - */ - - .text - .set noreorder - .set noat - .align 5 - NESTED(brcmIRQ, PT_SIZE, sp) - SAVE_ALL - CLI - .set noreorder - .set at - - jal plat_irq_dispatch - move a0, sp - - j ret_from_irq - nop - - END(brcmIRQ) diff --git a/target/linux/brcm63xx/files/arch/mips/bcm963xx/irq.c b/target/linux/brcm63xx/files/arch/mips/bcm963xx/irq.c deleted file mode 100644 index 62a848bd7..000000000 --- a/target/linux/brcm63xx/files/arch/mips/bcm963xx/irq.c +++ /dev/null @@ -1,259 +0,0 @@ -/* -<:copyright-gpl - Copyright 2002 Broadcom Corp. All Rights Reserved. - - 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. -:> -*/ -/* - * Interrupt control functions for Broadcom 963xx MIPS boards - */ - -#include <asm/atomic.h> - -#include <linux/delay.h> -#include <linux/init.h> -#include <linux/ioport.h> -#include <linux/irq.h> -#include <linux/interrupt.h> -#include <linux/kernel.h> -#include <linux/slab.h> -#include <linux/module.h> - -#include <asm/irq.h> -#include <asm/mipsregs.h> -#include <asm/addrspace.h> -#include <asm/signal.h> -#include <6348_map_part.h> -#include <6348_intr.h> -#include <bcm_map_part.h> -#include <bcm_intr.h> - -static void irq_dispatch_int(void) -{ - unsigned int pendingIrqs; - static unsigned int irqBit; - static unsigned int isrNumber = 31; - - pendingIrqs = PERF->IrqStatus & PERF->IrqMask; - if (!pendingIrqs) { - return; - } - - while (1) { - irqBit <<= 1; - isrNumber++; - if (isrNumber == 32) { - isrNumber = 0; - irqBit = 0x1; - } - if (pendingIrqs & irqBit) { - PERF->IrqMask &= ~irqBit; // mask - do_IRQ(isrNumber + INTERNAL_ISR_TABLE_OFFSET); - break; - } - } -} - -static void irq_dispatch_ext(uint32 irq) -{ - if (!(PERF->ExtIrqCfg & (1 << (irq - INTERRUPT_ID_EXTERNAL_0 + EI_MASK_SHFT)))) { - printk("**** Ext IRQ mask. Should not dispatch ****\n"); - } - /* disable and clear interrupt in the controller */ - PERF->ExtIrqCfg |= (1 << (irq - INTERRUPT_ID_EXTERNAL_0 + EI_CLEAR_SHFT)); - PERF->ExtIrqCfg &= ~(1 << (irq - INTERRUPT_ID_EXTERNAL_0 + EI_MASK_SHFT)); - do_IRQ(irq); -} - - -//extern void brcm_timer_interrupt(struct pt_regs *regs); - -asmlinkage void plat_irq_dispatch(void) -{ - unsigned long cause; - - cause = read_c0_status() & read_c0_cause() & ST0_IM; - if (cause & CAUSEF_IP7) - do_IRQ(7); - else if (cause & CAUSEF_IP2) - irq_dispatch_int(); - else if (cause & CAUSEF_IP3) - irq_dispatch_ext(INTERRUPT_ID_EXTERNAL_0); - else if (cause & CAUSEF_IP4) - irq_dispatch_ext(INTERRUPT_ID_EXTERNAL_1); - else if (cause & CAUSEF_IP5) - irq_dispatch_ext(INTERRUPT_ID_EXTERNAL_2); - else if (cause & CAUSEF_IP6) { - irq_dispatch_ext(INTERRUPT_ID_EXTERNAL_3); - local_irq_disable(); - } -} - - -void enable_brcm_irq(unsigned int irq) -{ - unsigned long flags; - - local_irq_save(flags); - if( irq >= INTERNAL_ISR_TABLE_OFFSET ) { - PERF->IrqMask |= (1 << (irq - INTERNAL_ISR_TABLE_OFFSET)); - } - else if (irq >= INTERRUPT_ID_EXTERNAL_0 && irq <= INTERRUPT_ID_EXTERNAL_3) { - /* enable and clear interrupt in the controller */ - PERF->ExtIrqCfg |= (1 << (irq - INTERRUPT_ID_EXTERNAL_0 + EI_CLEAR_SHFT)); - PERF->ExtIrqCfg |= (1 << (irq - INTERRUPT_ID_EXTERNAL_0 + EI_MASK_SHFT)); - } - local_irq_restore(flags); -} - -void disable_brcm_irq(unsigned int irq) -{ - unsigned long flags; - - local_irq_save(flags); - if( irq >= INTERNAL_ISR_TABLE_OFFSET ) { - PERF->IrqMask &= ~(1 << (irq - INTERNAL_ISR_TABLE_OFFSET)); - } - else if (irq >= INTERRUPT_ID_EXTERNAL_0 && irq <= INTERRUPT_ID_EXTERNAL_3) { - /* disable interrupt in the controller */ - PERF->ExtIrqCfg &= ~(1 << (irq - INTERRUPT_ID_EXTERNAL_0 + EI_MASK_SHFT)); - } - local_irq_restore(flags); -} - -void ack_brcm_irq(unsigned int irq) -{ - /* Already done in brcm_irq_dispatch */ -} - -unsigned int startup_brcm_irq(unsigned int irq) -{ - enable_brcm_irq(irq); - - return 0; /* never anything pending */ -} - -unsigned int startup_brcm_none(unsigned int irq) -{ - return 0; -} - -void end_brcm_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - enable_brcm_irq(irq); -} - -void end_brcm_none(unsigned int irq) -{ -} - -static struct hw_interrupt_type brcm_irq_type = { - .typename = "MIPS", - .startup = startup_brcm_irq, - .shutdown = disable_brcm_irq, - .enable = enable_brcm_irq, - .disable = disable_brcm_irq, - .ack = ack_brcm_irq, - .end = end_brcm_irq, - .set_affinity = NULL -}; - -static struct hw_interrupt_type brcm_irq_no_end_type = { - .typename = "MIPS", - .startup = startup_brcm_none, - .shutdown = disable_brcm_irq, - .enable = enable_brcm_irq, - .disable = disable_brcm_irq, - .ack = ack_brcm_irq, - .end = end_brcm_none, - .set_affinity = NULL -}; - -void __init arch_init_irq(void) -{ - int i; - - clear_c0_status(ST0_BEV); - change_c0_status(ST0_IM, (IE_IRQ0 | IE_IRQ1 | IE_IRQ2 | IE_IRQ3 | IE_IRQ4)); - - for (i = 0; i < NR_IRQS; i++) { - irq_desc[i].status = IRQ_DISABLED; - irq_desc[i].action = 0; - irq_desc[i].depth = 1; - irq_desc[i].chip = &brcm_irq_type; - } -} - -int request_external_irq(unsigned int irq, - FN_HANDLER handler, - unsigned long irqflags, - const char * devname, - void *dev_id) -{ - unsigned long flags; - - local_irq_save(flags); - - PERF->ExtIrqCfg |= (1 << (irq - INTERRUPT_ID_EXTERNAL_0 + EI_CLEAR_SHFT)); // Clear - PERF->ExtIrqCfg &= ~(1 << (irq - INTERRUPT_ID_EXTERNAL_0 + EI_MASK_SHFT)); // Mask - PERF->ExtIrqCfg &= ~(1 << (irq - INTERRUPT_ID_EXTERNAL_0 + EI_INSENS_SHFT)); // Edge insesnsitive - PERF->ExtIrqCfg |= (1 << (irq - INTERRUPT_ID_EXTERNAL_0 + EI_LEVEL_SHFT)); // Level triggered - PERF->ExtIrqCfg &= ~(1 << (irq - INTERRUPT_ID_EXTERNAL_0 + EI_SENSE_SHFT)); // Low level - - local_irq_restore(flags); - - return( request_irq(irq, handler, irqflags, devname, dev_id) ); -} - -/* VxWorks compatibility function(s). */ - -unsigned int BcmHalMapInterrupt(FN_HANDLER pfunc, unsigned int param, - unsigned int interruptId) -{ - int nRet = -1; - char *devname; - - devname = kmalloc(16, GFP_KERNEL); - if (devname) - sprintf( devname, "brcm_%d", interruptId ); - - /* Set the IRQ description to not automatically enable the interrupt at - * the end of an ISR. The driver that handles the interrupt must - * explicitly call BcmHalInterruptEnable or enable_brcm_irq. This behavior - * is consistent with interrupt handling on VxWorks. - */ - irq_desc[interruptId].chip = &brcm_irq_no_end_type; - - if( interruptId >= INTERNAL_ISR_TABLE_OFFSET ) - { - printk("BcmHalMapInterrupt : internal IRQ\n"); - nRet = request_irq( interruptId, pfunc, IRQF_DISABLED, devname, (void *) param ); - } - else if (interruptId >= INTERRUPT_ID_EXTERNAL_0 && interruptId <= INTERRUPT_ID_EXTERNAL_3) - { - printk("BcmHalMapInterrupt : external IRQ\n"); - nRet = request_external_irq( interruptId, pfunc, IRQF_DISABLED, devname, (void *) param ); - } - - return( nRet ); -} - - -EXPORT_SYMBOL(enable_brcm_irq); -EXPORT_SYMBOL(disable_brcm_irq); -EXPORT_SYMBOL(request_external_irq); -EXPORT_SYMBOL(BcmHalMapInterrupt); - diff --git a/target/linux/brcm63xx/files/arch/mips/bcm963xx/prom.c b/target/linux/brcm63xx/files/arch/mips/bcm963xx/prom.c deleted file mode 100644 index 5ebadc667..000000000 --- a/target/linux/brcm63xx/files/arch/mips/bcm963xx/prom.c +++ /dev/null @@ -1,67 +0,0 @@ -/* - Copyright 2004 Broadcom Corp. All Rights Reserved. - Copyright 2007 OpenWrt,org, Florian Fainelli <florian@openwrt.org> - - 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. -*/ -/* - * prom.c: PROM library initialization code. - * - */ -#include <linux/init.h> -#include <linux/mm.h> -#include <linux/sched.h> -#include <linux/bootmem.h> -#include <linux/blkdev.h> - -#include <asm/addrspace.h> -#include <asm/bootinfo.h> -#include <asm/cpu.h> -#include <asm/time.h> -#include <asm/mach-bcm963xx/bootloaders.h> -#include <asm/mach-bcm963xx/6348_map_part.h> - -#include "../cfe/cfe_private.h" - -extern void __init detect_bootloader(void); -extern void serial_init(void); -extern int boot_loader_type; - -#define MACH_BCM MACH_BCM96348 - -const char *get_system_type(void) -{ - return "Broadcom BCM963xx"; -} - -void __init prom_init(void) -{ - serial_init(); - - printk("%s prom init\n", get_system_type() ); - - PERF->IrqMask = 0; - - /* Detect the bootloader */ - detect_bootloader(); - - /* Register 16MB RAM minus the ADSL SDRAM by default */ - add_memory_region(0, (0x01000000 - ADSL_SDRAM_IMAGE_SIZE), BOOT_MEM_RAM); - -} - -void __init prom_free_prom_memory(void) -{ - /* We do not have any memory to free */ -} diff --git a/target/linux/brcm63xx/files/arch/mips/bcm963xx/ser_init.c b/target/linux/brcm63xx/files/arch/mips/bcm963xx/ser_init.c deleted file mode 100644 index bb745aec6..000000000 --- a/target/linux/brcm63xx/files/arch/mips/bcm963xx/ser_init.c +++ /dev/null @@ -1,181 +0,0 @@ -/* -<:copyright-gpl - Copyright 2004 Broadcom Corp. All Rights Reserved. - - 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. -:> -*/ -/* - * Broadcom bcm63xx serial port initialization, also prepare for printk - * by registering with console_init - * - */ - -#include <linux/autoconf.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/console.h> -#include <linux/sched.h> - -#include <asm/addrspace.h> -#include <asm/irq.h> -#include <asm/reboot.h> -#include <asm/gdb-stub.h> -#include <asm/mc146818rtc.h> - -#include <bcm_map_part.h> -#include <6348_map_part.h> -#include <board.h> - -#define SER63XX_DEFAULT_BAUD 115200 -#define BD_BCM63XX_TIMER_CLOCK_INPUT (FPERIPH) -#define stUart ((volatile Uart * const) UART_BASE) - -// Transmit interrupts -#define TXINT (TXFIFOEMT | TXUNDERR | TXOVFERR) -// Receive interrupts -#define RXINT (RXFIFONE | RXOVFERR) - -/* -------------------------------------------------------------------------- - Name: serial_init - Purpose: Initalize the UART --------------------------------------------------------------------------- */ -void __init serial_init(void) -{ - u32 tmpVal = SER63XX_DEFAULT_BAUD; - ULONG clockFreqHz; - -#if defined(CONFIG_BCM96345) - // Make sure clock is ticking - PERF->blkEnables |= UART_CLK_EN; -#endif - - /* Dissable channel's receiver and transmitter. */ - stUart->control &= ~(BRGEN|TXEN|RXEN); - - /*--------------------------------------------------------------------*/ - /* Write the table value to the clock select register. */ - /* DPullen - this is the equation to use: */ - /* value = clockFreqHz / baud / 32-1; */ - /* (snmod) Actually you should also take into account any necessary */ - /* rounding. Divide by 16, look at lsb, if 0, divide by 2 */ - /* and subtract 1. If 1, just divide by 2 */ - /*--------------------------------------------------------------------*/ - clockFreqHz = BD_BCM63XX_TIMER_CLOCK_INPUT; - tmpVal = (clockFreqHz / tmpVal) / 16; - if( tmpVal & 0x01 ) - tmpVal /= 2; //Rounding up, so sub is already accounted for - else - tmpVal = (tmpVal / 2) - 1; // Rounding down so we must sub 1 - stUart->baudword = tmpVal; - - /* Finally, re-enable the transmitter and receiver. */ - stUart->control |= (BRGEN|TXEN|RXEN); - - stUart->config = (BITS8SYM | ONESTOP); - // Set the FIFO interrupt depth ... stUart->fifocfg = 0xAA; - stUart->fifoctl = RSTTXFIFOS | RSTRXFIFOS; - stUart->intMask = 0; - stUart->intMask = RXINT | TXINT; -} - - -/* prom_putc() - * Output a character to the UART - */ -void prom_putc(char c) -{ - /* Wait for Tx uffer to empty */ - while (! (READ16(stUart->intStatus) & TXFIFOEMT)); - /* Send character */ - stUart->Data = c; -} - -/* prom_puts() - * Write a string to the UART - */ -void prom_puts(const char *s) -{ - while (*s) { - if (*s == '\n') { - prom_putc('\r'); - } - prom_putc(*s++); - } -} - - -/* prom_getc_nowait() - * Returns a character from the UART - * Returns -1 if no characters available or corrupted - */ -int prom_getc_nowait(void) -{ - uint16 uStatus; - int cData = -1; - - uStatus = READ16(stUart->intStatus); - - if (uStatus & RXFIFONE) { /* Do we have a character? */ - cData = READ16(stUart->Data) & 0xff; /* Read character */ - if (uStatus & (RXFRAMERR | RXPARERR)) { /* If we got an error, throw it away */ - cData = -1; - } - } - - return cData; -} - -/* prom_getc() - * Returns a charcter from the serial port - * Will block until it receives a valid character -*/ -char prom_getc(void) -{ - int cData = -1; - - /* Loop until we get a valid character */ - while(cData == -1) { - cData = prom_getc_nowait(); - } - return (char) cData; -} - -/* prom_testc() - * Returns 0 if no characters available - */ -int prom_testc(void) -{ - uint16 uStatus; - - uStatus = READ16(stUart->intStatus); - - return (uStatus & RXFIFONE); -} - -#if defined (CONFIG_REMOTE_DEBUG) -/* Prevent other code from writing to the serial port */ -void _putc(char c) { } -void _puts(const char *ptr) { } -#else -/* Low level outputs call prom routines */ -void _putc(char c) { - prom_putc(c); -} -void _puts(const char *ptr) { - prom_puts(ptr); -} -#endif diff --git a/target/linux/brcm63xx/files/arch/mips/bcm963xx/setup.c b/target/linux/brcm63xx/files/arch/mips/bcm963xx/setup.c deleted file mode 100644 index 58472783f..000000000 --- a/target/linux/brcm63xx/files/arch/mips/bcm963xx/setup.c +++ /dev/null @@ -1,472 +0,0 @@ -/* -<:copyright-gpl - Copyright 2002 Broadcom Corp. All Rights Reserved. - - 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. -:> -*/ -/* - * Generic setup routines for Broadcom 963xx MIPS boards - */ - -#include <linux/autoconf.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/kernel.h> -#include <linux/kdev_t.h> -#include <linux/types.h> -#include <linux/console.h> -#include <linux/sched.h> -#include <linux/mm.h> -#include <linux/slab.h> -#include <linux/module.h> -#include <linux/pm.h> -#include <linux/bootmem.h> - -#include <asm/addrspace.h> -#include <asm/bcache.h> -#include <asm/irq.h> -#include <asm/time.h> -#include <asm/reboot.h> -#include <asm/gdb-stub.h> -#include <asm/bootinfo.h> -#include <asm/cpu.h> -#include <asm/mach-bcm963xx/bootloaders.h> - -extern void brcm_time_init(void); -extern int boot_loader_type; - -#include <linux/pci.h> -#include <linux/delay.h> -#include <bcm_map_part.h> -#include <6348_map_part.h> -#include <bcmpci.h> - -static volatile MpiRegisters * mpi = (MpiRegisters *)(MPI_BASE); - -/* This function should be in a board specific directory. For now, - * assume that all boards that include this file use a Broadcom chip - * with a soft reset bit in the PLL control register. - */ -static void brcm_machine_restart(char *command) -{ - const unsigned long ulSoftReset = 0x00000001; - unsigned long *pulPllCtrl = (unsigned long *) 0xfffe0008; - *pulPllCtrl |= ulSoftReset; -} - -static void brcm_machine_halt(void) -{ - printk("System halted\n"); - while (1); -} - -static void mpi_SetLocalPciConfigReg(uint32 reg, uint32 value) -{ - /* write index then value */ - mpi->pcicfgcntrl = PCI_CFG_REG_WRITE_EN + reg;; - mpi->pcicfgdata = value; -} - -static uint32 mpi_GetLocalPciConfigReg(uint32 reg) -{ - /* write index then get value */ - mpi->pcicfgcntrl = PCI_CFG_REG_WRITE_EN + reg;; - return mpi->pcicfgdata; -} - -/* - * mpi_ResetPcCard: Set/Reset the PcCard - */ -static void mpi_ResetPcCard(int cardtype, BOOL bReset) -{ - if (cardtype == MPI_CARDTYPE_NONE) { - return; - } - - if (cardtype == MPI_CARDTYPE_CARDBUS) { - bReset = ! bReset; - } - - if (bReset) { - mpi->pcmcia_cntl1 = (mpi->pcmcia_cntl1 & ~PCCARD_CARD_RESET); - } else { - mpi->pcmcia_cntl1 = (mpi->pcmcia_cntl1 | PCCARD_CARD_RESET); - } -} - -/* - * mpi_ConfigCs: Configure an MPI/EBI chip select - */ -static void mpi_ConfigCs(uint32 cs, uint32 base, uint32 size, uint32 flags) -{ - mpi->cs[cs].base = ((base & 0x1FFFFFFF) | size); - mpi->cs[cs].config = flags; -} - -/* - * mpi_InitPcmciaSpace - */ -static void mpi_InitPcmciaSpace(void) -{ - // ChipSelect 4 controls PCMCIA Memory accesses - mpi_ConfigCs(PCMCIA_COMMON_BASE, pcmciaMem, EBI_SIZE_1M, (EBI_WORD_WIDE|EBI_ENABLE)); - // ChipSelect 5 controls PCMCIA Attribute accesses - mpi_ConfigCs(PCMCIA_ATTRIBUTE_BASE, pcmciaAttr, EBI_SIZE_1M, (EBI_WORD_WIDE|EBI_ENABLE)); - // ChipSelect 6 controls PCMCIA I/O accesses - mpi_ConfigCs(PCMCIA_IO_BASE, pcmciaIo, EBI_SIZE_64K, (EBI_WORD_WIDE|EBI_ENABLE)); - - mpi->pcmcia_cntl2 = ((PCMCIA_ATTR_ACTIVE << RW_ACTIVE_CNT_BIT) | - (PCMCIA_ATTR_INACTIVE << INACTIVE_CNT_BIT) | - (PCMCIA_ATTR_CE_SETUP << CE_SETUP_CNT_BIT) | - (PCMCIA_ATTR_CE_HOLD << CE_HOLD_CNT_BIT)); - - mpi->pcmcia_cntl2 |= (PCMCIA_HALFWORD_EN | PCMCIA_BYTESWAP_DIS); -} - -/* - * cardtype_vcc_detect: PC Card's card detect and voltage sense connection - * - * CD1#/ CD2#/ VS1#/ VS2#/ Card Initial Vcc - * CCD1# CCD2# CVS1 CVS2 Type - * - * GND GND open open 16-bit 5 vdc - * - * GND GND GND open 16-bit 3.3 vdc - * - * GND GND open GND 16-bit x.x vdc - * - * GND GND GND GND 16-bit 3.3 & x.x vdc - * - *==================================================================== - * - * CVS1 GND CCD1# open CardBus 3.3 vdc - * - * GND CVS2 open CCD2# CardBus x.x vdc - * - * GND CVS1 CCD2# open CardBus y.y vdc - * - * GND CVS2 GND CCD2# CardBus 3.3 & x.x vdc - * - * CVS2 GND open CCD1# CardBus x.x & y.y vdc - * - * GND CVS1 CCD2# open CardBus 3.3, x.x & y.y vdc - * - */ -static int cardtype_vcc_detect(void) -{ - uint32 data32; - int cardtype; - - cardtype = MPI_CARDTYPE_NONE; - mpi->pcmcia_cntl1 = 0x0000A000; // Turn on the output enables and drive - // the CVS pins to 0. - data32 = mpi->pcmcia_cntl1; - switch (data32 & 0x00000003) // Test CD1# and CD2#, see if card is plugged in. - { - case 0x00000003: // No Card is in the slot. - printk("mpi: No Card is in the PCMCIA slot\n"); - break; - - case 0x00000002: // Partial insertion, No CD2#. - printk("mpi: Card in the PCMCIA slot partial insertion, no CD2 signal\n"); - break; - - case 0x00000001: // Partial insertion, No CD1#. - printk("mpi: Card in the PCMCIA slot partial insertion, no CD1 signal\n"); - break; - - case 0x00000000: - mpi->pcmcia_cntl1 = 0x0000A0C0; // Turn off the CVS output enables and - // float the CVS pins. - mdelay(1); - data32 = mpi->pcmcia_cntl1; - // Read the Register. - switch (data32 & 0x0000000C) // See what is on the CVS pins. - { - case 0x00000000: // CVS1 and CVS2 are tied to ground, only 1 option. - printk("mpi: Detected 3.3 & x.x 16-bit PCMCIA card\n"); - cardtype = MPI_CARDTYPE_PCMCIA; - break; - - case 0x00000004: // CVS1 is open or tied to CCD1/CCD2 and CVS2 is tied to ground. - // 2 valid voltage options. - switch (data32 & 0x00000003) // Test the values of CCD1 and CCD2. - { - case 0x00000003: // CCD1 and CCD2 are tied to 1 of the CVS pins. - // This is not a valid combination. - printk("mpi: Unknown card plugged into slot\n"); - break; - - case 0x00000002: // CCD2 is tied to either CVS1 or CVS2. - mpi->pcmcia_cntl1 = 0x0000A080; // Drive CVS1 to a 0. - mdelay(1); - data32 = mpi->pcmcia_cntl1; - if (data32 & 0x00000002) { // CCD2 is tied to CVS2, not valid. - printk("mpi: Unknown card plugged into slot\n"); - } else { // CCD2 is tied to CVS1. - printk("mpi: Detected 3.3, x.x and y.y Cardbus card\n"); - cardtype = MPI_CARDTYPE_CARDBUS; - } - break; - - case 0x00000001: // CCD1 is tied to either CVS1 or CVS2. - // This is not a valid combination. - printk("mpi: Unknown card plugged into slot\n"); - break; - - case 0x00000000: // CCD1 and CCD2 are tied to ground. - printk("mpi: Detected x.x vdc 16-bit PCMCIA card\n"); - cardtype = MPI_CARDTYPE_PCMCIA; - break; - } - break; - - case 0x00000008: // CVS2 is open or tied to CCD1/CCD2 and CVS1 is tied to ground. - // 2 valid voltage options. - switch (data32 & 0x00000003) // Test the values of CCD1 and CCD2. - { - case 0x00000003: // CCD1 and CCD2 are tied to 1 of the CVS pins. - // This is not a valid combination. - printk("mpi: Unknown card plugged into slot\n"); - break; - - case 0x00000002: // CCD2 is tied to either CVS1 or CVS2. - mpi->pcmcia_cntl1 = 0x0000A040; // Drive CVS2 to a 0. - mdelay(1); - data32 = mpi->pcmcia_cntl1; - if (data32 & 0x00000002) { // CCD2 is tied to CVS1, not valid. - printk("mpi: Unknown card plugged into slot\n"); - } else {// CCD2 is tied to CVS2. - printk("mpi: Detected 3.3 and x.x Cardbus card\n"); - cardtype = MPI_CARDTYPE_CARDBUS; - } - break; - - case 0x00000001: // CCD1 is tied to either CVS1 or CVS2. - // This is not a valid combination. - printk("mpi: Unknown card plugged into slot\n"); - break; - - case 0x00000000: // CCD1 and CCD2 are tied to ground. - cardtype = MPI_CARDTYPE_PCMCIA; - printk("mpi: Detected 3.3 vdc 16-bit PCMCIA card\n"); - break; - } - break; - - case 0x0000000C: // CVS1 and CVS2 are open or tied to CCD1/CCD2. - // 5 valid voltage options. - - switch (data32 & 0x00000003) // Test the values of CCD1 and CCD2. - { - case 0x00000003: // CCD1 and CCD2 are tied to 1 of the CVS pins. - // This is not a valid combination. - printk("mpi: Unknown card plugged into slot\n"); - break; - - case 0x00000002: // CCD2 is tied to either CVS1 or CVS2. - // CCD1 is tied to ground. - mpi->pcmcia_cntl1 = 0x0000A040; // Drive CVS2 to a 0. - mdelay(1); - data32 = mpi->pcmcia_cntl1; - if (data32 & 0x00000002) { // CCD2 is tied to CVS1. - printk("mpi: Detected y.y vdc Cardbus card\n"); - } else { // CCD2 is tied to CVS2. - printk("mpi: Detected x.x vdc Cardbus card\n"); - } - cardtype = MPI_CARDTYPE_CARDBUS; - break; - - case 0x00000001: // CCD1 is tied to either CVS1 or CVS2. - // CCD2 is tied to ground. - - mpi->pcmcia_cntl1 = 0x0000A040; // Drive CVS2 to a 0. - mdelay(1); - data32 = mpi->pcmcia_cntl1; - if (data32 & 0x00000001) {// CCD1 is tied to CVS1. - printk("mpi: Detected 3.3 vdc Cardbus card\n"); - } else { // CCD1 is tied to CVS2. - printk("mpi: Detected x.x and y.y Cardbus card\n"); - } - cardtype = MPI_CARDTYPE_CARDBUS; - break; - - case 0x00000000: // CCD1 and CCD2 are tied to ground. - cardtype = MPI_CARDTYPE_PCMCIA; - printk("mpi: Detected 5 vdc 16-bit PCMCIA card\n"); - break; - } - break; - - default: - printk("mpi: Unknown card plugged into slot\n"); - break; - - } - } - return cardtype; -} - -/* - * mpi_DetectPcCard: Detect the plugged in PC-Card - * Return: < 0 => Unknown card detected - * 0 => No card detected - * 1 => 16-bit card detected - * 2 => 32-bit CardBus card detected - */ -static int mpi_DetectPcCard(void) -{ - int cardtype; - - cardtype = cardtype_vcc_detect(); - switch(cardtype) { - case MPI_CARDTYPE_PCMCIA: - mpi->pcmcia_cntl1 &= ~0x0000e000; // disable enable bits - //mpi->pcmcia_cntl1 = (mpi->pcmcia_cntl1 & ~PCCARD_CARD_RESET); - mpi->pcmcia_cntl1 |= (PCMCIA_ENABLE | PCMCIA_GPIO_ENABLE); - mpi_InitPcmciaSpace(); - mpi_ResetPcCard(cardtype, FALSE); - // Hold card in reset for 10ms - mdelay(10); - mpi_ResetPcCard(cardtype, TRUE); - // Let card come out of reset - mdelay(100); - break; - case MPI_CARDTYPE_CARDBUS: - // 8 => CardBus Enable - // 1 => PCI Slot Number - // C => Float VS1 & VS2 - mpi->pcmcia_cntl1 = (mpi->pcmcia_cntl1 & 0xFFFF0000) | - CARDBUS_ENABLE | - (CARDBUS_SLOT << 8)| - VS2_OEN | - VS1_OEN; - /* access to this memory window will be to/from CardBus */ - mpi->l2pmremap1 |= CARDBUS_MEM; - - // Need to reset the Cardbus Card. There's no CardManager to do this, - // and we need to be ready for PCI configuration. - mpi_ResetPcCard(cardtype, FALSE); - // Hold card in reset for 10ms - mdelay(10); - mpi_ResetPcCard(cardtype, TRUE); - // Let card come out of reset - mdelay(100); - break; - default: - break; - } - return cardtype; -} - -static int mpi_init(void) -{ - unsigned long data; - unsigned int chipid, chiprev, sdramsize; - - printk("Broadcom BCM963xx MPI\n"); - chipid = (PERF->RevID & 0xFFFF0000) >> 16; - chiprev = (PERF->RevID & 0xFF); - - if (boot_loader_type == BOOT_LOADER_CFE) - sdramsize = boot_mem_map.map[0].size; - else - sdramsize = 0x01000000; - /* - * Init the pci interface - */ - data = GPIO->GPIOMode; // GPIO mode register - data |= GROUP2_PCI | GROUP1_MII_PCCARD; // PCI internal arbiter + Cardbus - GPIO->GPIOMode = data; // PCI internal arbiter - - /* - * In the BCM6348 CardBus support is defaulted to Slot 0 - * because there is no external IDSEL for CardBus. To disable - * the CardBus and allow a standard PCI card in Slot 0 - * set the cbus_idsel field to 0x1f. - */ - /* - uData = mpi->pcmcia_cntl1; - uData |= CARDBUS_IDSEL; - mpi->pcmcia_cntl1 = uData; - */ - // Setup PCI I/O Window range. Give 64K to PCI I/O - mpi->l2piorange = ~(BCM_PCI_IO_SIZE_64KB-1); - // UBUS to PCI I/O base address - mpi->l2piobase = BCM_PCI_IO_BASE & BCM_PCI_ADDR_MASK; - // UBUS to PCI I/O Window remap - mpi->l2pioremap = (BCM_PCI_IO_BASE | MEM_WINDOW_EN); - - // enable PCI related GPIO pins and data swap between system and PCI bus - mpi->locbuscntrl = (EN_PCI_GPIO | DIR_U2P_NOSWAP); - - /* Enable 6348 BusMaster and Memory access mode */ - data = mpi_GetLocalPciConfigReg(PCI_COMMAND); - data |= (PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER); - mpi_SetLocalPciConfigReg(PCI_COMMAND, data); - - /* Configure two 16 MByte PCI to System memory regions. */ - /* These memory regions are used when PCI device is a bus master */ - /* Accesses to the SDRAM from PCI bus will be "byte swapped" for this region */ - mpi_SetLocalPciConfigReg(PCI_BASE_ADDRESS_3, BCM_HOST_MEM_SPACE1); - mpi->sp0remap = 0x0; - - /* Accesses to the SDRAM from PCI bus will not be "byte swapped" for this region */ - mpi_SetLocalPciConfigReg(PCI_BASE_ADDRESS_4, BCM_HOST_MEM_SPACE2); - mpi->sp1remap = 0x0; - mpi->pcimodesel |= (PCI_BAR2_NOSWAP | 0x40); - - if ((chipid == 0x6348) && (chiprev == 0xb0)) { - mpi->sp0range = ~(sdramsize-1); - mpi->sp1range = ~(sdramsize-1); - } - /* - * Change 6348 PCI Cfg Reg. offset 0x40 to PCI memory read retry count infinity - * by set 0 in bit 8~15. This resolve read Bcm4306 srom return 0xffff in - * first read. - */ - data = mpi_GetLocalPciConfigReg(BRCM_PCI_CONFIG_TIMER); - data &= ~BRCM_PCI_CONFIG_TIMER_RETRY_MASK; - data |= 0x00000080; - mpi_SetLocalPciConfigReg(BRCM_PCI_CONFIG_TIMER, data); - - /* enable pci interrupt */ - mpi->locintstat |= (EXT_PCI_INT << 16); - - mpi_DetectPcCard(); - - ioport_resource.start = BCM_PCI_IO_BASE; - ioport_resource.end = BCM_PCI_IO_BASE + BCM_PCI_IO_SIZE_64KB; - -#if defined(CONFIG_USB) - PERF->blkEnables |= USBH_CLK_EN; - mdelay(100); - *USBH_NON_OHCI = NON_OHCI_BYTE_SWAP; -#endif - - return 0; -} - -void __init plat_mem_setup(void) -{ - _machine_restart = brcm_machine_restart; - _machine_halt = brcm_machine_halt; - pm_power_off = brcm_machine_halt; - - //board_time_init = brcm_time_init; - - /* mpi initialization */ - mpi_init(); -} diff --git a/target/linux/brcm63xx/files/arch/mips/bcm963xx/time.c b/target/linux/brcm63xx/files/arch/mips/bcm963xx/time.c deleted file mode 100644 index fa0fa71a7..000000000 --- a/target/linux/brcm63xx/files/arch/mips/bcm963xx/time.c +++ /dev/null @@ -1,118 +0,0 @@ -/* -<:copyright-gpl - Copyright 2004 Broadcom Corp. All Rights Reserved. - - 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. -:> -*/ -/* - * Setup time for Broadcom 963xx MIPS boards - */ - -#include <linux/autoconf.h> -#include <linux/init.h> -#include <linux/kernel_stat.h> -#include <linux/sched.h> -#include <linux/spinlock.h> -#include <linux/interrupt.h> -#include <linux/module.h> -#include <linux/time.h> -#include <linux/timex.h> - -#include <asm/mipsregs.h> -#include <asm/ptrace.h> -#include <asm/div64.h> -#include <asm/time.h> - -#include <6348_map_part.h> -#include <6348_intr.h> -#include <bcm_map_part.h> -#include <bcm_intr.h> - -static unsigned long r4k_offset; /* Amount to increment compare reg each time */ -static unsigned long r4k_cur; /* What counter should be at next timer irq */ - -/* ********************************************************************* - * calculateCpuSpeed() - * Calculate the BCM6348 CPU speed by reading the PLL strap register - * and applying the following formula: - * cpu_clk = (.25 * 64MHz freq) * (N1 + 1) * (N2 + 2) / (M1_CPU + 1) - * Input parameters: - * none - * Return value: - * none - ********************************************************************* */ - -static inline unsigned long __init calculateCpuSpeed(void) -{ - u32 pllStrap = PERF->PllStrap; - int n1 = (pllStrap & PLL_N1_MASK) >> PLL_N1_SHFT; - int n2 = (pllStrap & PLL_N2_MASK) >> PLL_N2_SHFT; - int m1cpu = (pllStrap & PLL_M1_CPU_MASK) >> PLL_M1_CPU_SHFT; - - return (16 * (n1 + 1) * (n2 + 2) / (m1cpu + 1)) * 1000000; -} - - -static inline unsigned long __init cal_r4koff(void) -{ - mips_hpt_frequency = calculateCpuSpeed() / 2; - return (mips_hpt_frequency / HZ); -} - - -/* - * There are a lot of conceptually broken versions of the MIPS timer interrupt - * handler floating around. This one is rather different, but the algorithm - * is provably more robust. - */ -#if 0 -irqreturn_t brcm_timer_interrupt(struct pt_regs *regs) -{ - int irq = MIPS_TIMER_INT; - - irq_enter(); - kstat_this_cpu.irqs[irq]++; - - timer_interrupt(irq, regs); - irq_exit(); - return IRQ_HANDLED; -} -#endif - -void __init plat_time_init(void) -{ - unsigned int est_freq, flags; - local_irq_save(flags); - - printk("calculating r4koff... "); - r4k_offset = cal_r4koff(); - printk("%08lx(%d)\n", r4k_offset, (int)r4k_offset); - - est_freq = 2 * r4k_offset * HZ; - est_freq += 5000; /* round */ - est_freq -= est_freq % 10000; - printk("CPU frequency %d.%02d MHz\n", est_freq / 1000000, - (est_freq % 1000000) * 100 / 1000000); - local_irq_restore(flags); -} - -#if 0 -void __init plat_timer_setup(struct irqaction *irq) -{ - r4k_cur = (read_c0_count() + r4k_offset); - write_c0_compare(r4k_cur); - set_c0_status(IE_IRQ5); -} -#endif diff --git a/target/linux/brcm63xx/files/arch/mips/bcm963xx/wdt.c b/target/linux/brcm63xx/files/arch/mips/bcm963xx/wdt.c deleted file mode 100644 index 0ea36a67f..000000000 --- a/target/linux/brcm63xx/files/arch/mips/bcm963xx/wdt.c +++ /dev/null @@ -1,246 +0,0 @@ -/* - * Watchdog driver for the BCM963xx devices - * - * Copyright (C) 2007 OpenWrt.org - * Florian Fainelli <florian@openwrt.org> - * - * 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. - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/errno.h> -#include <linux/miscdevice.h> -#include <linux/fs.h> -#include <linux/init.h> -#include <linux/notifier.h> -#include <linux/watchdog.h> -#include <linux/timer.h> -#include <linux/jiffies.h> -#include <linux/completion.h> -#include <linux/ioport.h> - -typedef struct bcm963xx_timer { - unsigned short unused0; - unsigned char timer_mask; -#define TIMER0EN 0x01 -#define TIMER1EN 0x02 -#define TIMER2EN 0x04 - unsigned char timer_ints; -#define TIMER0 0x01 -#define TIMER1 0x02 -#define TIMER2 0x04 -#define WATCHDOG 0x08 - unsigned long timer_ctl0; - unsigned long timer_ctl1; - unsigned long timer_ctl2; -#define TIMERENABLE 0x80000000 -#define RSTCNTCLR 0x40000000 - unsigned long timer_cnt0; - unsigned long timer_cnt1; - unsigned long timer_cnt2; - unsigned long wdt_def_count; - - /* Write 0xff00 0x00ff to Start timer - * Write 0xee00 0x00ee to Stop and re-load default count - * Read from this register returns current watch dog count - */ - unsigned long wdt_ctl; - - /* Number of 40-MHz ticks for WD Reset pulse to last */ - unsigned long wdt_rst_count; -} bcm963xx_timer; - -static struct bcm963xx_wdt_device { - struct completion stop; - volatile int running; - struct timer_list timer; - volatile int queue; - int default_ticks; - unsigned long inuse; -} bcm963xx_wdt_device; - -static int ticks = 1000; - -#define WDT_BASE 0xfffe0200 -#define WDT ((volatile bcm963xx_timer * const) WDT_BASE) - -#define BCM963XX_INTERVAL (HZ/10+1) - -static void bcm963xx_wdt_trigger(unsigned long unused) -{ - if (bcm963xx_wdt_device.running) - ticks--; - - /* Load the default ticking value into the reset counter register */ - WDT->wdt_rst_count = bcm963xx_wdt_device.default_ticks; - - if (bcm963xx_wdt_device.queue && ticks) { - bcm963xx_wdt_device.timer.expires = jiffies + BCM963XX_INTERVAL; - add_timer(&bcm963xx_wdt_device.timer); - } - else { - complete(&bcm963xx_wdt_device.stop); - } -} - -static void bcm963xx_wdt_reset(void) -{ - ticks = bcm963xx_wdt_device.default_ticks; - /* Also reload default count */ - WDT->wdt_def_count = ticks; - WDT->wdt_ctl = 0xee00; - WDT->wdt_ctl = 0x00ee; -} - -static void bcm963xx_wdt_start(void) -{ - if (!bcm963xx_wdt_device.queue) { - bcm963xx_wdt_device.queue; - /* Enable the watchdog by writing 0xff00 ,then 0x00ff to the control register */ - WDT->wdt_ctl = 0xff00; - WDT->wdt_ctl = 0x00ff; - bcm963xx_wdt_device.timer.expires = jiffies + BCM963XX_INTERVAL; - add_timer(&bcm963xx_wdt_device.timer); - } - bcm963xx_wdt_device.running++; -} - -static int bcm963xx_wdt_stop(void) -{ - if (bcm963xx_wdt_device.running) - bcm963xx_wdt_device.running = 0; - - ticks = bcm963xx_wdt_device.default_ticks; - - /* Stop the watchdog by writing 0xee00 then 0x00ee to the control register */ - WDT->wdt_ctl = 0xee00; - WDT->wdt_ctl = 0x00ee; - - return -EIO; -} - -static int bcm963xx_wdt_open(struct inode *inode, struct file *file) -{ - if (test_and_set_bit(0, &bcm963xx_wdt_device.inuse)) - return -EBUSY; - return nonseekable_open(inode, file); -} - -static int bcm963xx_wdt_release(struct inode *inode, struct file *file) -{ - clear_bit(0, &bcm963xx_wdt_device.inuse); - return 0; -} - -static int bcm963xx_wdt_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) -{ - void __user *argp = (void __user *)arg; - unsigned int value; - - static struct watchdog_info ident = { - .options = WDIOF_CARDRESET, - .identity = "BCM963xx WDT", - }; - - switch (cmd) { - case WDIOC_KEEPALIVE: - bcm963xx_wdt_reset(); - break; - case WDIOC_GETSTATUS: - /* Reading from the control register will return the current value */ - value = WDT->wdt_ctl; - if ( copy_to_user(argp, &value, sizeof(int)) ) - return -EFAULT; - break; - case WDIOC_GETSUPPORT: - if ( copy_to_user(argp, &ident, sizeof(ident)) ) - return -EFAULT; - break; - case WDIOC_SETOPTIONS: - if ( copy_from_user(&value, argp, sizeof(int)) ) - return -EFAULT; - switch(value) { - case WDIOS_ENABLECARD: - bcm963xx_wdt_start(); - break; - case WDIOS_DISABLECARD: - bcm963xx_wdt_stop(); - break; - default: - return -EINVAL; - } - break; - default: - return -ENOTTY; - } - return 0; -} - -static int bcm963xx_wdt_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) -{ - if (!count) - return -EIO; - bcm963xx_wdt_reset(); - return count; -} - -static const struct file_operations bcm963xx_wdt_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .write = bcm963xx_wdt_write, - .ioctl = bcm963xx_wdt_ioctl, - .open = bcm963xx_wdt_open, - .release = bcm963xx_wdt_release, -}; - -static struct miscdevice bcm963xx_wdt_miscdev = { - .minor = WATCHDOG_MINOR, - .name = "watchdog", - .fops = &bcm963xx_wdt_fops, -}; - -static void __exit bcm963xx_wdt_exit(void) -{ - if (bcm963xx_wdt_device.queue ){ - bcm963xx_wdt_device.queue = 0; - wait_for_completion(&bcm963xx_wdt_device.stop); - } - misc_deregister(&bcm963xx_wdt_miscdev); -} - -static int __init bcm963xx_wdt_init(void) -{ - int ret = 0; - - printk("Broadcom BCM963xx Watchdog timer\n"); - - ret = misc_register(&bcm963xx_wdt_miscdev); - if (ret) { - printk(KERN_CRIT "Cannot register miscdev on minor=%d (err=%d)\n", WATCHDOG_MINOR, ret); - return ret; - } - init_completion(&bcm963xx_wdt_device.stop); - bcm963xx_wdt_device.queue = 0; - - clear_bit(0, &bcm963xx_wdt_device.inuse); - - init_timer(&bcm963xx_wdt_device.timer); - bcm963xx_wdt_device.timer.function = bcm963xx_wdt_trigger; - bcm963xx_wdt_device.timer.data = 0; - - bcm963xx_wdt_device.default_ticks = ticks; - return ret; -} - - -module_init(bcm963xx_wdt_init); -module_exit(bcm963xx_wdt_exit); - -MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>"); -MODULE_DESCRIPTION("Broadcom BCM963xx Watchdog driver"); -MODULE_LICENSE("GPL"); |