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Diffstat (limited to 'package/linux/kernel-source/include/sbchipc.h')
| -rw-r--r-- | package/linux/kernel-source/include/sbchipc.h | 367 |
1 files changed, 367 insertions, 0 deletions
diff --git a/package/linux/kernel-source/include/sbchipc.h b/package/linux/kernel-source/include/sbchipc.h new file mode 100644 index 000000000..7f37b2a6f --- /dev/null +++ b/package/linux/kernel-source/include/sbchipc.h @@ -0,0 +1,367 @@ +/* + * 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 */ |