diff options
Diffstat (limited to 'include/asm-blackfin/mach-common/bits/mpu.h')
| -rw-r--r-- | include/asm-blackfin/mach-common/bits/mpu.h | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/include/asm-blackfin/mach-common/bits/mpu.h b/include/asm-blackfin/mach-common/bits/mpu.h new file mode 100644 index 0000000..39998f8 --- /dev/null +++ b/include/asm-blackfin/mach-common/bits/mpu.h @@ -0,0 +1,116 @@ +/* + * MPU Masks + */ + +#ifndef __BFIN_PERIPHERAL_MPU__ +#define __BFIN_PERIPHERAL_MPU__ + +/* + * DMEM_CONTROL Register + */ + +/* ** Bit Positions */ +#define ENDM_P 0x00 /* (doesn't really exist) Enable Data Memory L1 */ +#define DMCTL_ENDM_P ENDM_P /* "" (older define) */ +#define ENDCPLB_P 0x01 /* Enable DCPLBS */ +#define DMCTL_ENDCPLB_P ENDCPLB_P /* "" (older define) */ +#define DMC0_P 0x02 /* L1 Data Memory Configure bit 0 */ +#define DMCTL_DMC0_P DMC0_P /* "" (older define) */ +#define DMC1_P 0x03 /* L1 Data Memory Configure bit 1 */ +#define DMCTL_DMC1_P DMC1_P /* "" (older define) */ +#define DCBS_P 0x04 /* L1 Data Cache Bank Select */ +#define PORT_PREF0_P 0x12 /* DAG0 Port Preference */ +#define PORT_PREF1_P 0x13 /* DAG1 Port Preference */ + +/* ** Masks */ +#define ENDM 0x00000001 /* (doesn't really exist) Enable Data Memory L1 */ +#define ENDCPLB 0x00000002 /* Enable DCPLB */ +#define ASRAM_BSRAM 0x00000000 +#define ACACHE_BSRAM 0x00000008 +#define ACACHE_BCACHE 0x0000000C +#define DCBS 0x00000010 /* L1 Data Cache Bank Select */ +#define PORT_PREF0 0x00001000 /* DAG0 Port Preference */ +#define PORT_PREF1 0x00002000 /* DAG1 Port Preference */ + +/* IMEM_CONTROL Register */ +/* ** Bit Positions */ +#define ENIM_P 0x00 /* Enable L1 Code Memory */ +#define IMCTL_ENIM_P 0x00 /* "" (older define) */ +#define ENICPLB_P 0x01 /* Enable ICPLB */ +#define IMCTL_ENICPLB_P 0x01 /* "" (older define) */ +#define IMC_P 0x02 /* Enable */ +#define IMCTL_IMC_P 0x02 /* Configure L1 code memory as cache (0=SRAM) */ +#define ILOC0_P 0x03 /* Lock Way 0 */ +#define ILOC1_P 0x04 /* Lock Way 1 */ +#define ILOC2_P 0x05 /* Lock Way 2 */ +#define ILOC3_P 0x06 /* Lock Way 3 */ +#define LRUPRIORST_P 0x0D /* Least Recently Used Replacement Priority */ + +/* ** Masks */ +#define ENIM 0x00000001 /* Enable L1 Code Memory */ +#define ENICPLB 0x00000002 /* Enable ICPLB */ +#define IMC 0x00000004 /* Configure L1 code memory as cache (0=SRAM) */ +#define ILOC0 0x00000008 /* Lock Way 0 */ +#define ILOC1 0x00000010 /* Lock Way 1 */ +#define ILOC2 0x00000020 /* Lock Way 2 */ +#define ILOC3 0x00000040 /* Lock Way 3 */ +#define LRUPRIORST 0x00002000 /* Least Recently Used Replacement Priority */ + +/* DCPLB_DATA and ICPLB_DATA Registers */ +/* ** Bit Positions */ +#define CPLB_VALID_P 0x00000000 /* 0=invalid entry, 1=valid entry */ +#define CPLB_LOCK_P 0x00000001 /* 0=entry may be replaced, 1=entry locked */ +#define CPLB_USER_RD_P 0x00000002 /* 0=no read access, 1=read access allowed (user mode) */ + +/* ** Masks */ +#define CPLB_VALID 0x00000001 /* 0=invalid entry, 1=valid entry */ +#define CPLB_LOCK 0x00000002 /* 0=entry may be replaced, 1=entry locked */ +#define CPLB_USER_RD 0x00000004 /* 0=no read access, 1=read access allowed (user mode) */ +#define PAGE_SIZE_1KB 0x00000000 /* 1 KB page size */ +#define PAGE_SIZE_4KB 0x00010000 /* 4 KB page size */ +#define PAGE_SIZE_1MB 0x00020000 /* 1 MB page size */ +#define PAGE_SIZE_4MB 0x00030000 /* 4 MB page size */ +#define PAGE_SIZE_MASK 0x00030000 /* the bits for the page_size field */ +#define PAGE_SIZE_SHIFT 16 +#define CPLB_L1SRAM 0x00000020 /* 0=SRAM mapped in L1, 0=SRAM not mapped to L1 */ +#define CPLB_PORTPRIO 0x00000200 /* 0=low priority port, 1= high priority port */ +#define CPLB_L1_CHBL 0x00001000 /* 0=non-cacheable in L1, 1=cacheable in L1 */ + +/* ICPLB_DATA only */ +#define CPLB_LRUPRIO 0x00000100 /* 0=can be replaced by any line, 1=priority for non-replacement */ + +/* DCPLB_DATA only */ +#define CPLB_USER_WR 0x00000008 /* 0=no write access, 0=write access allowed (user mode) */ +#define CPLB_SUPV_WR 0x00000010 /* 0=no write access, 0=write access allowed (supervisor mode) */ +#define CPLB_DIRTY 0x00000080 /* 1=dirty, 0=clean */ +#define CPLB_L1_AOW 0x00008000 /* 0=do not allocate cache lines on write-through writes, */ + /* 1= allocate cache lines on write-through writes. */ +#define CPLB_WT 0x00004000 /* 0=write-back, 1=write-through */ + +/* ITEST_COMMAND and DTEST_COMMAND Registers */ +/* ** Masks */ +#define TEST_READ 0x00000000 /* Read Access */ +#define TEST_WRITE 0x00000002 /* Write Access */ +#define TEST_TAG 0x00000000 /* Access TAG */ +#define TEST_DATA 0x00000004 /* Access DATA */ +#define TEST_DW0 0x00000000 /* Select Double Word 0 */ +#define TEST_DW1 0x00000008 /* Select Double Word 1 */ +#define TEST_DW2 0x00000010 /* Select Double Word 2 */ +#define TEST_DW3 0x00000018 /* Select Double Word 3 */ +#define TEST_MB0 0x00000000 /* Select Mini-Bank 0 */ +#define TEST_MB1 0x00010000 /* Select Mini-Bank 1 */ +#define TEST_MB2 0x00020000 /* Select Mini-Bank 2 */ +#define TEST_MB3 0x00030000 /* Select Mini-Bank 3 */ +#define TEST_SET(x) ((x << 5) & 0x03E0) /* Set Index 0->31 */ +#define TEST_WAY0 0x00000000 /* Access Way0 */ +#define TEST_WAY1 0x04000000 /* Access Way1 */ + +/* ** ITEST_COMMAND only */ +#define TEST_WAY2 0x08000000 /* Access Way2 */ +#define TEST_WAY3 0x0C000000 /* Access Way3 */ + +/* ** DTEST_COMMAND only */ +#define TEST_BNKSELA 0x00000000 /* Access SuperBank A */ +#define TEST_BNKSELB 0x00800000 /* Access SuperBank B */ + +#endif |