/* * Blackfin core register bit & address definitions * * Copyright 2005-2008 Analog Devices Inc. * * Licensed under the Clear BSD license or GPL-2 (or later). */ #ifndef _DEF_LPBLACKFIN_H #define _DEF_LPBLACKFIN_H #include #define MK_BMSK_(x) (1<> __ffs(mask)) #ifndef __ASSEMBLY__ #include #if ANOMALY_05000198 # define NOP_PAD_ANOMALY_05000198 "nop;" #else # define NOP_PAD_ANOMALY_05000198 #endif #define _bfin_readX(addr, size, asm_size, asm_ext) ({ \ u32 __v; \ __asm__ __volatile__( \ NOP_PAD_ANOMALY_05000198 \ "%0 = " #asm_size "[%1]" #asm_ext ";" \ : "=d" (__v) \ : "a" (addr) \ ); \ __v; }) #define _bfin_writeX(addr, val, size, asm_size) \ __asm__ __volatile__( \ NOP_PAD_ANOMALY_05000198 \ #asm_size "[%0] = %1;" \ : \ : "a" (addr), "d" ((u##size)(val)) \ : "memory" \ ) #define bfin_read8(addr) _bfin_readX(addr, 8, b, (z)) #define bfin_read16(addr) _bfin_readX(addr, 16, w, (z)) #define bfin_read32(addr) _bfin_readX(addr, 32, , ) #define bfin_write8(addr, val) _bfin_writeX(addr, val, 8, b) #define bfin_write16(addr, val) _bfin_writeX(addr, val, 16, w) #define bfin_write32(addr, val) _bfin_writeX(addr, val, 32, ) #define bfin_read(addr) \ ({ \ sizeof(*(addr)) == 1 ? bfin_read8(addr) : \ sizeof(*(addr)) == 2 ? bfin_read16(addr) : \ sizeof(*(addr)) == 4 ? bfin_read32(addr) : \ ({ BUG(); 0; }); \ }) #define bfin_write(addr, val) \ do { \ switch (sizeof(*(addr))) { \ case 1: bfin_write8(addr, val); break; \ case 2: bfin_write16(addr, val); break; \ case 4: bfin_write32(addr, val); break; \ default: BUG(); \ } \ } while (0) #define bfin_write_or(addr, bits) \ do { \ typeof(addr) __addr = (addr); \ bfin_write(__addr, bfin_read(__addr) | (bits)); \ } while (0) #define bfin_write_and(addr, bits) \ do { \ typeof(addr) __addr = (addr); \ bfin_write(__addr, bfin_read(__addr) & (bits)); \ } while (0) #endif /* __ASSEMBLY__ */ /************************************************** * System Register Bits **************************************************/ /************************************************** * ASTAT register **************************************************/ /* definitions of ASTAT bit positions*/ /*Result of last ALU0 or shifter operation is zero*/ #define ASTAT_AZ_P 0x00000000 /*Result of last ALU0 or shifter operation is negative*/ #define ASTAT_AN_P 0x00000001 /*Condition Code, used for holding comparison results*/ #define ASTAT_CC_P 0x00000005 /*Quotient Bit*/ #define ASTAT_AQ_P 0x00000006 /*Rounding mode, set for biased, clear for unbiased*/ #define ASTAT_RND_MOD_P 0x00000008 /*Result of last ALU0 operation generated a carry*/ #define ASTAT_AC0_P 0x0000000C /*Result of last ALU0 operation generated a carry*/ #define ASTAT_AC0_COPY_P 0x00000002 /*Result of last ALU1 operation generated a carry*/ #define ASTAT_AC1_P 0x0000000D /*Result of last ALU0 or MAC0 operation overflowed, sticky for MAC*/ #define ASTAT_AV0_P 0x00000010 /*Sticky version of ASTAT_AV0 */ #define ASTAT_AV0S_P 0x00000011 /*Result of last MAC1 operation overflowed, sticky for MAC*/ #define ASTAT_AV1_P 0x00000012 /*Sticky version of ASTAT_AV1 */ #define ASTAT_AV1S_P 0x00000013 /*Result of last ALU0 or MAC0 operation overflowed*/ #define ASTAT_V_P 0x00000018 /*Result of last ALU0 or MAC0 operation overflowed*/ #define ASTAT_V_COPY_P 0x00000003 /*Sticky version of ASTAT_V*/ #define ASTAT_VS_P 0x00000019 /* Masks */ /*Result of last ALU0 or shifter operation is zero*/ #define ASTAT_AZ MK_BMSK_(ASTAT_AZ_P) /*Result of last ALU0 or shifter operation is negative*/ #define ASTAT_AN MK_BMSK_(ASTAT_AN_P) /*Result of last ALU0 operation generated a carry*/ #define ASTAT_AC0 MK_BMSK_(ASTAT_AC0_P) /*Result of last ALU0 operation generated a carry*/ #define ASTAT_AC0_COPY MK_BMSK_(ASTAT_AC0_COPY_P) /*Result of last ALU0 operation generated a carry*/ #define ASTAT_AC1 MK_BMSK_(ASTAT_AC1_P) /*Result of last ALU0 or MAC0 operation overflowed, sticky for MAC*/ #define ASTAT_AV0 MK_BMSK_(ASTAT_AV0_P) /*Result of last MAC1 operation overflowed, sticky for MAC*/ #define ASTAT_AV1 MK_BMSK_(ASTAT_AV1_P) /*Condition Code, used for holding comparison results*/ #define ASTAT_CC MK_BMSK_(ASTAT_CC_P) /*Quotient Bit*/ #define ASTAT_AQ MK_BMSK_(ASTAT_AQ_P) /*Rounding mode, set for biased, clear for unbiased*/ #define ASTAT_RND_MOD MK_BMSK_(ASTAT_RND_MOD_P) /*Overflow Bit*/ #define ASTAT_V MK_BMSK_(ASTAT_V_P) /*Overflow Bit*/ #define ASTAT_V_COPY MK_BMSK_(ASTAT_V_COPY_P) /************************************************** * SEQSTAT register **************************************************/ /* Bit Positions */ #define SEQSTAT_EXCAUSE0_P 0x00000000 /* Last exception cause bit 0 */ #define SEQSTAT_EXCAUSE1_P 0x00000001 /* Last exception cause bit 1 */ #define SEQSTAT_EXCAUSE2_P 0x00000002 /* Last exception cause bit 2 */ #define SEQSTAT_EXCAUSE3_P 0x00000003 /* Last exception cause bit 3 */ #define SEQSTAT_EXCAUSE4_P 0x00000004 /* Last exception cause bit 4 */ #define SEQSTAT_EXCAUSE5_P 0x00000005 /* Last exception cause bit 5 */ #define SEQSTAT_IDLE_REQ_P 0x0000000C /* Pending idle mode request, * set by IDLE instruction. */ #define SEQSTAT_SFTRESET_P 0x0000000D /* Indicates whether the last * reset was a software reset * (=1) */ #define SEQSTAT_HWERRCAUSE0_P 0x0000000E /* Last hw error cause bit 0 */ #define SEQSTAT_HWERRCAUSE1_P 0x0000000F /* Last hw error cause bit 1 */ #define SEQSTAT_HWERRCAUSE2_P 0x00000010 /* Last hw error cause bit 2 */ #define SEQSTAT_HWERRCAUSE3_P 0x00000011 /* Last hw error cause bit 3 */ #define SEQSTAT_HWERRCAUSE4_P 0x00000012 /* Last hw error cause bit 4 */ /* Masks */ /* Exception cause */ #define SEQSTAT_EXCAUSE (MK_BMSK_(SEQSTAT_EXCAUSE0_P) | \ MK_BMSK_(SEQSTAT_EXCAUSE1_P) | \ MK_BMSK_(SEQSTAT_EXCAUSE2_P) | \ MK_BMSK_(SEQSTAT_EXCAUSE3_P) | \ MK_BMSK_(SEQSTAT_EXCAUSE4_P) | \ MK_BMSK_(SEQSTAT_EXCAUSE5_P) | \ 0) /* Indicates whether the last reset was a software reset (=1) */ #define SEQSTAT_SFTRESET (MK_BMSK_(SEQSTAT_SFTRESET_P)) /* Last hw error cause */ #define SEQSTAT_HWERRCAUSE (MK_BMSK_(SEQSTAT_HWERRCAUSE0_P) | \ MK_BMSK_(SEQSTAT_HWERRCAUSE1_P) | \ MK_BMSK_(SEQSTAT_HWERRCAUSE2_P) | \ MK_BMSK_(SEQSTAT_HWERRCAUSE3_P) | \ MK_BMSK_(SEQSTAT_HWERRCAUSE4_P) | \ 0) /* Translate bits to something useful */ /* Last hw error cause */ #define SEQSTAT_HWERRCAUSE_SHIFT (14) #define SEQSTAT_HWERRCAUSE_SYSTEM_MMR (0x02 << SEQSTAT_HWERRCAUSE_SHIFT) #define SEQSTAT_HWERRCAUSE_EXTERN_ADDR (0x03 << SEQSTAT_HWERRCAUSE_SHIFT) #define SEQSTAT_HWERRCAUSE_PERF_FLOW (0x12 << SEQSTAT_HWERRCAUSE_SHIFT) #define SEQSTAT_HWERRCAUSE_RAISE_5 (0x18 << SEQSTAT_HWERRCAUSE_SHIFT) /************************************************** * SYSCFG register **************************************************/ /* Bit Positions */ #define SYSCFG_SSSTEP_P 0x00000000 /* Supervisor single step, when * set it forces an exception * for each instruction executed */ #define SYSCFG_CCEN_P 0x00000001 /* Enable cycle counter (=1) */ #define SYSCFG_SNEN_P 0x00000002 /* Self nesting Interrupt Enable */ /* Masks */ /* Supervisor single step, when set it forces an exception for each *instruction executed */ #define SYSCFG_SSSTEP MK_BMSK_(SYSCFG_SSSTEP_P ) /* Enable cycle counter (=1) */ #define SYSCFG_CCEN MK_BMSK_(SYSCFG_CCEN_P ) /* Self Nesting Interrupt Enable */ #define SYSCFG_SNEN MK_BMSK_(SYSCFG_SNEN_P) /* Backward-compatibility for typos in prior releases */ #define SYSCFG_SSSSTEP SYSCFG_SSSTEP #define SYSCFG_CCCEN SYSCFG_CCEN /**************************************************** * Core MMR Register Map ****************************************************/ /* Data Cache & SRAM Memory (0xFFE00000 - 0xFFE00404) */ #define SRAM_BASE_ADDRESS 0xFFE00000 /* SRAM Base Address Register */ #define DMEM_CONTROL 0xFFE00004 /* Data memory control */ #define DCPLB_STATUS 0xFFE00008 /* Data Cache Programmable Look-Aside * Buffer Status */ #define DCPLB_FAULT_STATUS 0xFFE00008 /* "" (older define) */ #define DCPLB_FAULT_ADDR 0xFFE0000C /* Data Cache Programmable Look-Aside * Buffer Fault Address */ #define DCPLB_ADDR0 0xFFE00100 /* Data Cache Protection Lookaside * Buffer 0 */ #define DCPLB_ADDR1 0xFFE00104 /* Data Cache Protection Lookaside * Buffer 1 */ #define DCPLB_ADDR2 0xFFE00108 /* Data Cache Protection Lookaside * Buffer 2 */ #define DCPLB_ADDR3 0xFFE0010C /* Data Cacheability Protection * Lookaside Buffer 3 */ #define DCPLB_ADDR4 0xFFE00110 /* Data Cacheability Protection * Lookaside Buffer 4 */