kernel/drivers/mtd/devices/bcm47xxsflash.h

   1 #ifndef __BCM47XXSFLASH_H
   2 #define __BCM47XXSFLASH_H
   3
   4 #include <linux/mtd/mtd.h>
   5
   6 /* Used for ST flashes only. */
   7 #define OPCODE_ST_WREN          0x0006          /* Write Enable */
   8 #define OPCODE_ST_WRDIS         0x0004          /* Write Disable */
   9 #define OPCODE_ST_RDSR          0x0105          /* Read Status Register */
  10 #define OPCODE_ST_WRSR          0x0101          /* Write Status Register */
  11 #define OPCODE_ST_READ          0x0303          /* Read Data Bytes */
  12 #define OPCODE_ST_PP            0x0302          /* Page Program */
  13 #define OPCODE_ST_SE            0x02d8          /* Sector Erase */
  14 #define OPCODE_ST_BE            0x00c7          /* Bulk Erase */
  15 #define OPCODE_ST_DP            0x00b9          /* Deep Power-down */
  16 #define OPCODE_ST_RES           0x03ab          /* Read Electronic Signature */
  17 #define OPCODE_ST_CSA           0x1000          /* Keep chip select asserted */
  18 #define OPCODE_ST_SSE           0x0220          /* Sub-sector Erase */
  19
  20 /* Used for Atmel flashes only. */
  21 #define OPCODE_AT_READ                          0x07e8
  22 #define OPCODE_AT_PAGE_READ                     0x07d2
  23 #define OPCODE_AT_STATUS                        0x01d7
  24 #define OPCODE_AT_BUF1_WRITE                    0x0384
  25 #define OPCODE_AT_BUF2_WRITE                    0x0387
  26 #define OPCODE_AT_BUF1_ERASE_PROGRAM            0x0283
  27 #define OPCODE_AT_BUF2_ERASE_PROGRAM            0x0286
  28 #define OPCODE_AT_BUF1_PROGRAM                  0x0288
  29 #define OPCODE_AT_BUF2_PROGRAM                  0x0289
  30 #define OPCODE_AT_PAGE_ERASE                    0x0281
  31 #define OPCODE_AT_BLOCK_ERASE                   0x0250
  32 #define OPCODE_AT_BUF1_WRITE_ERASE_PROGRAM      0x0382
  33 #define OPCODE_AT_BUF2_WRITE_ERASE_PROGRAM      0x0385
  34 #define OPCODE_AT_BUF1_LOAD                     0x0253
  35 #define OPCODE_AT_BUF2_LOAD                     0x0255
  36 #define OPCODE_AT_BUF1_COMPARE                  0x0260
  37 #define OPCODE_AT_BUF2_COMPARE                  0x0261
  38 #define OPCODE_AT_BUF1_REPROGRAM                0x0258
  39 #define OPCODE_AT_BUF2_REPROGRAM                0x0259
  40
  41 /* Status register bits for ST flashes */
  42 #define SR_ST_WIP               0x01            /* Write In Progress */
  43 #define SR_ST_WEL               0x02            /* Write Enable Latch */
  44 #define SR_ST_BP_MASK           0x1c            /* Block Protect */
  45 #define SR_ST_BP_SHIFT          2
  46 #define SR_ST_SRWD              0x80            /* Status Register Write Disable */
  47
  48 /* Status register bits for Atmel flashes */
  49 #define SR_AT_READY             0x80
  50 #define SR_AT_MISMATCH          0x40
  51 #define SR_AT_ID_MASK           0x38
  52 #define SR_AT_ID_SHIFT          3
  53
  54 struct bcma_drv_cc;
  55
  56 enum bcm47xxsflash_type {
  57         BCM47XXSFLASH_TYPE_ATMEL,
  58         BCM47XXSFLASH_TYPE_ST,
  59 };
  60
  61 struct bcm47xxsflash {
  62         struct bcma_drv_cc *bcma_cc;
  63         int (*cc_read)(struct bcm47xxsflash *b47s, u16 offset);
  64         void (*cc_write)(struct bcm47xxsflash *b47s, u16 offset, u32 value);
  65
  66         enum bcm47xxsflash_type type;
  67
  68         u32 window;
  69         u32 blocksize;
  70         u16 numblocks;
  71         u32 size;
  72
  73         struct mtd_info mtd;
  74 };
  75
  76 #endif /* BCM47XXSFLASH */