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/*
* SiliconBackplane Chipcommon core hardware definitions.
*
* The chipcommon core provides chip identification, SB control,
* jtag, 0/1/2 uarts, clock frequency control, a watchdog interrupt timer,
* gpio interface, extbus, and support for serial and parallel flashes.
*
* $Id$
* Copyright 2004, Broadcom Corporation
* All Rights Reserved.
*
* THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
* KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
* SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
*
*/
#ifndef _SBCHIPC_H
#define _SBCHIPC_H
#ifndef _LANGUAGE_ASSEMBLY
/* cpp contortions to concatenate w/arg prescan */
#ifndef PAD
#define _PADLINE(line) pad ## line
#define _XSTR(line) _PADLINE(line)
#define PAD _XSTR(__LINE__)
#endif /* PAD */
typedef volatile struct {
uint32 chipid; /* 0x0 */
uint32 capabilities;
uint32 corecontrol; /* corerev >= 1 */
uint32 bist;
/* OTP */
uint32 otpstatus; /* 0x10, corerev >= 10 */
uint32 otpcontrol;
uint32 otpprog;
uint32 PAD;
/* Interrupt control */
uint32 intstatus; /* 0x20 */
uint32 intmask;
uint32 PAD[2];
/* Jtag Master */
uint32 jtagcmd; /* 0x30, rev >= 10 */
uint32 jtagir;
uint32 jtagdr;
uint32 jtagctrl;
/* serial flash interface registers */
uint32 flashcontrol; /* 0x40 */
uint32 flashaddress;
uint32 flashdata;
uint32 PAD[1];
/* Silicon backplane configuration broadcast control */
uint32 broadcastaddress; /* 0x50 */
uint32 broadcastdata;
uint32 PAD[2];
/* gpio - cleared only by power-on-reset */
uint32 gpioin; /* 0x60 */
uint32 gpioout;
uint32 gpioouten;
uint32 gpiocontrol;
uint32 gpiointpolarity;
uint32 gpiointmask;
uint32 PAD[2];
/* Watchdog timer */
uint32 watchdog; /* 0x80 */
uint32 PAD[3];
/* clock control */
uint32 clockcontrol_n; /* 0x90 */
uint32 clockcontrol_sb; /* aka m0 */
uint32 clockcontrol_pci; /* aka m1 */
uint32 clockcontrol_m2; /* mii/uart/mipsref */
uint32 clockcontrol_mips; /* aka m3 */
uint32 clkdiv; /* corerev >= 3 */
uint32 PAD[2];
/* pll delay registers (corerev >= 4) */
uint32 pll_on_delay; /* 0xb0 */
uint32 fref_sel_delay;
uint32 slow_clk_ctl; /* 5 < corerev < 10 */
uint32 PAD[1];
/* Instaclock registers (corerev >= 10) */
uint32 system_clk_ctl; /* 0xc0 */
uint32 clkstatestretch;
uint32 PAD[14];
/* ExtBus control registers (corerev >= 3) */
uint32 pcmcia_config; /* 0x100 */
uint32 pcmcia_memwait;
uint32 pcmcia_attrwait;
uint32 pcmcia_iowait;
uint32 ide_config;
uint32 ide_memwait;
uint32 ide_attrwait;
uint32 ide_iowait;
uint32 prog_config;
uint32 prog_waitcount;
uint32 flash_config;
uint32 flash_waitcount;
uint32 PAD[116];
/* uarts */
uint8 uart0data; /* 0x300 */
uint8 uart0imr;
uint8 uart0fcr;
uint8 uart0lcr;
uint8 uart0mcr;
uint8 uart0lsr;
uint8 uart0msr;
uint8 uart0scratch;
uint8 PAD[248]; /* corerev >= 1 */
uint8 uart1data; /* 0x400 */
uint8 uart1imr;
uint8 uart1fcr;
uint8 uart1lcr;
uint8 uart1mcr;
uint8 uart1lsr;
uint8 uart1msr;
uint8 uart1scratch;
} chipcregs_t;
#endif /* _LANGUAGE_ASSEMBLY */
#define CC_CHIPID 0
#define CC_CAPABILITIES 4
#define CC_JTAGCMD 0x30
#define CC_JTAGIR 0x34
#define CC_JTAGDR 0x38
#define CC_JTAGCTRL 0x3c
#define CC_CLKDIV 0xa4
/* chipid */
#define CID_ID_MASK 0x0000ffff /* Chip Id mask */
#define CID_REV_MASK 0x000f0000 /* Chip Revision mask */
#define CID_REV_SHIFT 16 /* Chip Revision shift */
#define CID_PKG_MASK 0x00f00000 /* Package Option mask */
#define CID_PKG_SHIFT 20 /* Package Option shift */
#define CID_CC_MASK 0x0f000000 /* CoreCount (corerev >= 4) */
#define CID_CC_SHIFT 24
/* capabilities */
#define CAP_UARTS_MASK 0x00000003 /* Number of uarts */
#define CAP_MIPSEB 0x00000004 /* MIPS is in big-endian mode */
#define CAP_UCLKSEL 0x00000018 /* UARTs clock select */
#define CAP_UINTCLK 0x00000008 /* UARTs are driven by internal divided clock */
#define CAP_UARTGPIO 0x00000020 /* UARTs own Gpio's 15:12 */
#define CAP_EXTBUS 0x00000040 /* External bus present */
#define CAP_FLASH_MASK 0x00000700 /* Type of flash */
#define CAP_PLL_MASK 0x00038000 /* Type of PLL */
#define CAP_PWR_CTL 0x00040000 /* Power control */
#define CAP_OTPSIZE 0x00380000 /* OTP Size (0 = none) */
#define CAP_JTAGP 0x00400000 /* JTAG Master Present */
#define CAP_ROM 0x00800000 /* Internal boot rom active */
/* PLL type */
#define PLL_NONE 0x00000000
#define PLL_TYPE1 0x00010000 /* 48Mhz base, 3 dividers */
#define PLL_TYPE2 0x00020000 /* 48Mhz, 4 dividers */
#define PLL_TYPE3 0x00030000 /* 25Mhz, 2 dividers */
#define PLL_TYPE4 0x00008000 /* 48Mhz, 4 dividers */
/* corecontrol */
#define CC_UARTCLKO 0x00000001 /* Drive UART with internal clock */
#define CC_SE 0x00000002 /* sync clk out enable (corerev >= 3) */
/* jtagcmd */
#define JCMD_START 0x80000000
#define JCMD_BUSY 0x80000000
#define JCMD_PAUSE 0x40000000
#define JCMD0_ACC_MASK 0x0000f000
#define JCMD0_ACC_IRDR 0x00000000
#define JCMD0_ACC_DR 0x00001000
#define JCMD0_ACC_IR 0x00002000
#define JCMD0_ACC_RESET 0x00003000
#define JCMD0_ACC_IRPDR 0x00004000
#define JCMD0_ACC_PDR 0x00005000
#define JCMD0_IRW_MASK 0x00000f00
#define JCMD_ACC_MASK 0x000f0000 /* Changes for corerev 11 */
#define JCMD_ACC_IRDR 0x00000000
#define JCMD_ACC_DR 0x00010000
#define JCMD_ACC_IR 0x00020000
#define JCMD_ACC_RESET 0x00030000
#define JCMD_ACC_IRPDR 0x00040000
#define JCMD_ACC_PDR 0x00050000
#define JCMD_IRW_MASK 0x00001f00
#define JCMD_IRW_SHIFT 8
#define JCMD_DRW_MASK 0x0000003f
/* jtagctrl */
#define JCTRL_FORCE_CLK 4 /* Force clock */
#define JCTRL_EXT_EN 2 /* Enable external targets */
#define JCTRL_EN 1 /* Enable Jtag master */
/* Fields in clkdiv */
#define CLKD_SFLASH 0x0f000000
#define CLKD_SFLASH_SHIFT 24
#define CLKD_OTP 0x000f0000
#define CLKD_OTP_SHIFT 16
#define CLKD_JTAG 0x00000f00
#define CLKD_JTAG_SHIFT 8
#define CLKD_UART 0x000000ff
/* intstatus/intmask */
#define CI_GPIO 0x00000001 /* gpio intr */
#define CI_EI 0x00000002 /* ro: ext intr pin (corerev >= 3) */
#define CI_WDREST 0x80000000 /* watchdog reset occurred */
/* slow_clk_ctl */
#define SCC_SS_MASK 0x00000007 /* slow clock source mask */
#define SCC_SS_LPO 0x00000000 /* source of slow clock is LPO */
#define SCC_SS_XTAL 0x00000001 /* source of slow clock is crystal */
#define SCC_SS_PCI 0x00000002 /* source of slow clock is PCI */
#define SCC_LF 0x00000200 /* LPOFreqSel, 1: 160Khz, 0: 32KHz */
#define SCC_LP 0x00000400 /* LPOPowerDown, 1: LPO is disabled, 0: LPO is enabled */
#define SCC_FS 0x00000800 /* ForceSlowClk, 1: sb/cores running on slow clock, 0: power logic control */
#define SCC_IP 0x00001000 /* IgnorePllOffReq, 1/0: power logic ignores/honors PLL clock disable requests from core */
#define SCC_XC 0x00002000 /* XtalControlEn, 1/0: power logic does/doesn't disable crystal when appropriate */
#define SCC_XP 0x00004000 /* XtalPU (RO), 1/0: crystal running/disabled */
#define SCC_CD_MASK 0xffff0000 /* ClockDivider mask, SlowClk = 1/(4+divisor) * crystal/PCI clock */
#define SCC_CD_SHF 16 /* CLockDivider shift */
/* sys_clk_ctl */
#define SYCC_IE 0x00000001 /* ILPen: Enable Idle Low Power */
#define SYCC_AE 0x00000002 /* ALPen: Enable Active Low Power */
#define SYCC_FP 0x00000004 /* ForcePLLOn */
#define SYCC_AR 0x00000008 /* Force ALP (or HT if ALPen is not set */
#define SYCC_HR 0x00000010 /* Force HT */
#define SYCC_CD_MASK 0xffff0000 /* ClockDivider mask, SlowClk = 1/(4+divisor) * crystal/PCI clock */
#define SYCC_CD_SHF 16 /* CLockDivider shift */
/* clockcontrol_n */
#define CN_N1_MASK 0x3f /* n1 control */
#define CN_N2_MASK 0x3f00 /* n2 control */
#define CN_N2_SHIFT 8
/* clockcontrol_sb/pci/uart */
#define CC_M1_MASK 0x3f /* m1 control */
#define CC_M2_MASK 0x3f00 /* m2 control */
#define CC_M2_SHIFT 8
#define CC_M3_MASK 0x3f0000 /* m3 control */
#define CC_M3_SHIFT 16
#define CC_MC_MASK 0x1f000000 /* mux control */
#define CC_MC_SHIFT 24
/* N3M Clock control values for 125Mhz */
#define CC_125_N 0x0802 /* Default values for bcm4310 */
#define CC_125_M 0x04020009
#define CC_125_M25 0x11090009
#define CC_125_M33 0x11090005
/* N3M Clock control magic field values */
#define CC_F6_2 0x02 /* A factor of 2 in */
#define CC_F6_3 0x03 /* 6-bit fields like */
#define CC_F6_4 0x05 /* N1, M1 or M3 */
#define CC_F6_5 0x09
#define CC_F6_6 0x11
#define CC_F6_7 0x21
#define CC_F5_BIAS 5 /* 5-bit fields get this added */
#define CC_MC_BYPASS 0x08
#define CC_MC_M1 0x04
#define CC_MC_M1M2 0x02
#define CC_MC_M1M2M3 0x01
#define CC_MC_M1M3 0x11
/* Type 2 Clock control magic field values */
#define CC_T2_BIAS 2 /* n1, n2, m1 & m3 bias */
#define CC_T2M2_BIAS 3 /* m2 bias */
#define CC_T2MC_M1BYP 1
#define CC_T2MC_M2BYP 2
#define CC_T2MC_M3BYP 4
/* Common clock base */
#define CC_CLOCK_BASE 24000000 /* Half the clock freq */
/* Flash types in the chipcommon capabilities register */
#define FLASH_NONE 0x000 /* No flash */
#define SFLASH_ST 0x100 /* ST serial flash */
#define SFLASH_AT 0x200 /* Atmel serial flash */
#define PFLASH 0x700 /* Parallel flash */
/* Prefered flash window in chipcommon */
#define CC_FLASH_BASE 0xbc000000 /* Chips with chipcommon cores */
#define CC_FLASH_MAX 0x02000000 /* Maximum flash size with chipc */
/* Bits in the config registers */
#define CC_CFG_EN 0x0001 /* Enable */
#define CC_CFG_EM_MASK 0x000e /* Extif Mode */
#define CC_CFG_EM_ASYNC 0x0002 /* Async/Parallel flash */
#define CC_CFG_EM_SYNC 0x0004 /* Synchronous */
#define CC_CFG_EM_PCMCIA 0x0008 /* PCMCIA */
#define CC_CFG_EM_IDE 0x000a /* IDE */
#define CC_CFG_DS 0x0010 /* Data size, 0=8bit, 1=16bit */
#define CC_CFG_CD_MASK 0x0060 /* Sync: Clock divisor */
#define CC_CFG_CE 0x0080 /* Sync: Clock enable */
#define CC_CFG_SB 0x0100 /* Sync: Size/Bytestrobe */
/* Start/busy bit in flashcontrol */
#define SFLASH_START 0x80000000
#define SFLASH_BUSY SFLASH_START
/* flashcontrol opcodes for ST flashes */
#define SFLASH_ST_WREN 0x0006 /* Write Enable */
#define SFLASH_ST_WRDIS 0x0004 /* Write Disable */
#define SFLASH_ST_RDSR 0x0105 /* Read Status Register */
#define SFLASH_ST_WRSR 0x0101 /* Write Status Register */
#define SFLASH_ST_READ 0x0303 /* Read Data Bytes */
#define SFLASH_ST_PP 0x0302 /* Page Program */
#define SFLASH_ST_SE 0x02d8 /* Sector Erase */
#define SFLASH_ST_BE 0x00c7 /* Bulk Erase */
#define SFLASH_ST_DP 0x00b9 /* Deep Power-down */
#define SFLASH_ST_RES 0x03ab /* Read Electronic Signature */
/* Status register bits for ST flashes */
#define SFLASH_ST_WIP 0x01 /* Write In Progress */
#define SFLASH_ST_WEL 0x02 /* Write Enable Latch */
#define SFLASH_ST_BP_MASK 0x1c /* Block Protect */
#define SFLASH_ST_BP_SHIFT 2
#define SFLASH_ST_SRWD 0x80 /* Status Register Write Disable */
/* flashcontrol opcodes for Atmel flashes */
#define SFLASH_AT_READ 0x07e8
#define SFLASH_AT_PAGE_READ 0x07d2
#define SFLASH_AT_BUF1_READ
#define SFLASH_AT_BUF2_READ
#define SFLASH_AT_STATUS 0x01d7
#define SFLASH_AT_BUF1_WRITE 0x0384
#define SFLASH_AT_BUF2_WRITE 0x0387
#define SFLASH_AT_BUF1_ERASE_PROGRAM 0x0283
#define SFLASH_AT_BUF2_ERASE_PROGRAM 0x0286
#define SFLASH_AT_BUF1_PROGRAM 0x0288
#define SFLASH_AT_BUF2_PROGRAM 0x0289
#define SFLASH_AT_PAGE_ERASE 0x0281
#define SFLASH_AT_BLOCK_ERASE 0x0250
#define SFLASH_AT_BUF1_WRITE_ERASE_PROGRAM 0x0382
#define SFLASH_AT_BUF2_WRITE_ERASE_PROGRAM 0x0385
#define SFLASH_AT_BUF1_LOAD 0x0253
#define SFLASH_AT_BUF2_LOAD 0x0255
#define SFLASH_AT_BUF1_COMPARE 0x0260
#define SFLASH_AT_BUF2_COMPARE 0x0261
#define SFLASH_AT_BUF1_REPROGRAM 0x0258
#define SFLASH_AT_BUF2_REPROGRAM 0x0259
/* Status register bits for Atmel flashes */
#define SFLASH_AT_READY 0x80
#define SFLASH_AT_MISMATCH 0x40
#define SFLASH_AT_ID_MASK 0x38
#define SFLASH_AT_ID_SHIFT 3
#endif /* _SBCHIPC_H */
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