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- /*
- * 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 <mach/anomaly.h>
- #define MK_BMSK_(x) (1<<x)
- #define BFIN_DEPOSIT(mask, x) (((x) << __ffs(mask)) & (mask))
- #define BFIN_EXTRACT(mask, x) (((x) & (mask)) >> __ffs(mask))
- #ifndef __ASSEMBLY__
- #include <linux/types.h>
- #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
- */
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