| 1 | --- a/drivers/mtd/devices/m25p80.c |
| 2 | +++ b/drivers/mtd/devices/m25p80.c |
| 3 | @@ -45,6 +45,7 @@ |
| 4 | #define OPCODE_BE_4K 0x20 /* Erase 4KiB block */ |
| 5 | #define OPCODE_BE_32K 0x52 /* Erase 32KiB block */ |
| 6 | #define OPCODE_CHIP_ERASE 0xc7 /* Erase whole flash chip */ |
| 7 | +#define OPCODE_BE_4K_PMC 0xd7 /* Erase 4KiB block on PMC chips*/ |
| 8 | #define OPCODE_SE 0xd8 /* Sector erase (usually 64KiB) */ |
| 9 | #define OPCODE_RDID 0x9f /* Read JEDEC ID */ |
| 10 | |
| 11 | @@ -594,6 +595,7 @@ struct flash_info { |
| 12 | u16 flags; |
| 13 | #define SECT_4K 0x01 /* OPCODE_BE_4K works uniformly */ |
| 14 | #define M25P_NO_ERASE 0x02 /* No erase command needed */ |
| 15 | +#define SECT_4K_PMC 0x04 /* OPCODE_BE_4K_PMC works uniformly */ |
| 16 | }; |
| 17 | |
| 18 | #define INFO(_jedec_id, _ext_id, _sector_size, _n_sectors, _flags) \ |
| 19 | @@ -667,6 +669,10 @@ static const struct spi_device_id m25p_i |
| 20 | { "n25q128", INFO(0x20ba18, 0, 64 * 1024, 256, 0) }, |
| 21 | { "n25q256a", INFO(0x20ba19, 0, 64 * 1024, 512, SECT_4K) }, |
| 22 | |
| 23 | + /* PMC -- pm25x "blocks" are 32K, sectors are 4K */ |
| 24 | + { "pm25lv512", INFO(0, 0, 32 * 1024, 2, SECT_4K_PMC) }, |
| 25 | + { "pm25lv010", INFO(0, 0, 32 * 1024, 4, SECT_4K_PMC) }, |
| 26 | + |
| 27 | /* Spansion -- single (large) sector size only, at least |
| 28 | * for the chips listed here (without boot sectors). |
| 29 | */ |
| 30 | @@ -907,6 +913,9 @@ static int __devinit m25p_probe(struct s |
| 31 | if (info->flags & SECT_4K) { |
| 32 | flash->erase_opcode = OPCODE_BE_4K; |
| 33 | flash->mtd.erasesize = 4096; |
| 34 | + } else if (info->flags & SECT_4K_PMC) { |
| 35 | + flash->erase_opcode = OPCODE_BE_4K_PMC; |
| 36 | + flash->mtd.erasesize = 4096; |
| 37 | } else { |
| 38 | flash->erase_opcode = OPCODE_SE; |
| 39 | flash->mtd.erasesize = info->sector_size; |
| 40 | |
