diff options
Diffstat (limited to 'src/drivers/spi')
| -rw-r--r-- | src/drivers/spi/stmicro.c | 64 |
1 files changed, 34 insertions, 30 deletions
diff --git a/src/drivers/spi/stmicro.c b/src/drivers/spi/stmicro.c index c959edab35..3e35120b38 100644 --- a/src/drivers/spi/stmicro.c +++ b/src/drivers/spi/stmicro.c @@ -46,15 +46,19 @@ #define CMD_M25PXX_DP 0xb9 /* Deep Power-down */ #define CMD_M25PXX_RES 0xab /* Release from DP, and Read Signature */ -#define STM_ID_M25P10 0x11 -#define STM_ID_M25P16 0x15 -#define STM_ID_M25P20 0x12 -#define STM_ID_M25P32 0x16 -#define STM_ID_M25P40 0x13 -#define STM_ID_M25P64 0x17 -#define STM_ID_M25P80 0x14 -#define STM_ID_M25P128 0x18 -#define STM_ID_USE_ALT_ID 0xFF +/* + * Device ID = (memory_type << 8) + memory_capacity + */ +#define STM_ID_M25P10 0x2011 +#define STM_ID_M25P16 0x2015 +#define STM_ID_M25P20 0x2012 +#define STM_ID_M25P32 0x2016 +#define STM_ID_M25P40 0x2013 +#define STM_ID_M25P64 0x2017 +#define STM_ID_M25P80 0x2014 +#define STM_ID_M25P128 0x2018 +#define STM_ID_N25Q256A 0xba19 +#define STM_ID_N25Q128 0xbb18 /* Some SPI flash share the same .idcode1 (idcode[2]). To handle this without * (possibly) breaking existing implementations, add the new device at the top @@ -62,9 +66,8 @@ * is then (idcode[1] << 8 | idcode[2]). */ struct stmicro_spi_flash_params { - u8 idcode1; + u16 device_id; u8 op_erase; - u16 id; u16 page_size; u16 pages_per_sector; u16 nr_sectors; @@ -85,8 +88,7 @@ static inline struct stmicro_spi_flash *to_stmicro_spi_flash(struct spi_flash static const struct stmicro_spi_flash_params stmicro_spi_flash_table[] = { { - .idcode1 = STM_ID_USE_ALT_ID, - .id = 0xbb18, + .device_id = STM_ID_N25Q128, .op_erase = CMD_M25PXX_SSE, .page_size = 256, .pages_per_sector = 16, @@ -94,7 +96,7 @@ static const struct stmicro_spi_flash_params stmicro_spi_flash_table[] = { .name = "N25Q128", }, { - .idcode1 = STM_ID_M25P10, + .device_id = STM_ID_M25P10, .op_erase = CMD_M25PXX_SE, .page_size = 256, .pages_per_sector = 128, @@ -102,7 +104,7 @@ static const struct stmicro_spi_flash_params stmicro_spi_flash_table[] = { .name = "M25P10", }, { - .idcode1 = STM_ID_M25P16, + .device_id = STM_ID_M25P16, .op_erase = CMD_M25PXX_SE, .page_size = 256, .pages_per_sector = 256, @@ -110,7 +112,7 @@ static const struct stmicro_spi_flash_params stmicro_spi_flash_table[] = { .name = "M25P16", }, { - .idcode1 = STM_ID_M25P20, + .device_id = STM_ID_M25P20, .op_erase = CMD_M25PXX_SE, .page_size = 256, .pages_per_sector = 256, @@ -118,7 +120,7 @@ static const struct stmicro_spi_flash_params stmicro_spi_flash_table[] = { .name = "M25P20", }, { - .idcode1 = STM_ID_M25P32, + .device_id = STM_ID_M25P32, .op_erase = CMD_M25PXX_SE, .page_size = 256, .pages_per_sector = 256, @@ -126,7 +128,7 @@ static const struct stmicro_spi_flash_params stmicro_spi_flash_table[] = { .name = "M25P32", }, { - .idcode1 = STM_ID_M25P40, + .device_id = STM_ID_M25P40, .op_erase = CMD_M25PXX_SE, .page_size = 256, .pages_per_sector = 256, @@ -134,7 +136,7 @@ static const struct stmicro_spi_flash_params stmicro_spi_flash_table[] = { .name = "M25P40", }, { - .idcode1 = STM_ID_M25P64, + .device_id = STM_ID_M25P64, .op_erase = CMD_M25PXX_SE, .page_size = 256, .pages_per_sector = 256, @@ -142,7 +144,7 @@ static const struct stmicro_spi_flash_params stmicro_spi_flash_table[] = { .name = "M25P64", }, { - .idcode1 = STM_ID_M25P80, + .device_id = STM_ID_M25P80, .op_erase = CMD_M25PXX_SE, .page_size = 256, .pages_per_sector = 256, @@ -150,13 +152,20 @@ static const struct stmicro_spi_flash_params stmicro_spi_flash_table[] = { .name = "M25P80", }, { - .idcode1 = STM_ID_M25P128, + .device_id = STM_ID_M25P128, .op_erase = CMD_M25PXX_SE, .page_size = 256, .pages_per_sector = 1024, .nr_sectors = 64, .name = "M25P128", }, + { + .device_id = STM_ID_N25Q256A, + .page_size = 256, + .pages_per_sector = 256, + .nr_sectors = 512, + .name = "N25Q256A", + }, }; static int stmicro_write(struct spi_flash *flash, @@ -229,8 +238,7 @@ struct spi_flash *spi_flash_probe_stmicro(struct spi_slave *spi, u8 * idcode) unsigned int i; if (idcode[0] == 0xff) { - i = spi_flash_cmd(spi, CMD_M25PXX_RES, - idcode, 4); + i = spi_flash_cmd(spi, CMD_M25PXX_RES, idcode, 4); if (i) return NULL; if ((idcode[3] & 0xf0) == 0x10) { @@ -243,18 +251,14 @@ struct spi_flash *spi_flash_probe_stmicro(struct spi_slave *spi, u8 * idcode) for (i = 0; i < ARRAY_SIZE(stmicro_spi_flash_table); i++) { params = &stmicro_spi_flash_table[i]; - if (params->idcode1 == STM_ID_USE_ALT_ID) { - if (params->id == ((idcode[1] << 8) | idcode[2])) { - break; - } - } - else if (params->idcode1 == idcode[2]) { + if (params->device_id == (idcode[1] << 8 | idcode[2])) { break; } } if (i == ARRAY_SIZE(stmicro_spi_flash_table)) { - printk(BIOS_WARNING, "SF: Unsupported STMicro ID %02x\n", idcode[1]); + printk(BIOS_WARNING, "SF: Unsupported STMicro ID %02x%02x\n", + idcode[1], idcode[2]); return NULL; } |