see http://www.jedec.org/download/search/jep106Z.pdf Add some second source legacy flash chips 256x8.
Signed-off-by: Niklaus Giger niklaus.giger@member.fsf.org --- drivers/mtd/cfi_flash.c | 15 +++++++++- drivers/mtd/jedec_flash.c | 67 +++++++++++++++++++++++++++++++++++++++++++++ include/flash.h | 10 ++++++- 3 files changed, 89 insertions(+), 3 deletions(-)
diff --git a/drivers/mtd/cfi_flash.c b/drivers/mtd/cfi_flash.c index 81ac5d3..8f750cb 100644 --- a/drivers/mtd/cfi_flash.c +++ b/drivers/mtd/cfi_flash.c @@ -106,6 +106,8 @@ #define ATM_CMD_SOFTLOCK_START 0x80 #define ATM_CMD_LOCK_SECT 0x40
+#define FLASH_CONTINUATION_CODE 0x7F + #define FLASH_OFFSET_MANUFACTURER_ID 0x00 #define FLASH_OFFSET_DEVICE_ID 0x01 #define FLASH_OFFSET_DEVICE_ID2 0x0E @@ -1541,13 +1543,22 @@ static int cmdset_intel_init(flash_info_t *info, struct cfi_qry *qry)
static void cmdset_amd_read_jedec_ids(flash_info_t *info) { + ushort bankId = 0; + uchar manuId; + flash_write_cmd(info, 0, 0, AMD_CMD_RESET); flash_unlock_seq(info, 0); flash_write_cmd(info, 0, info->addr_unlock1, FLASH_CMD_READ_ID); udelay(1000); /* some flash are slow to respond */
- info->manufacturer_id = flash_read_uchar (info, - FLASH_OFFSET_MANUFACTURER_ID); + manuId = flash_read_uchar (info, FLASH_OFFSET_MANUFACTURER_ID); + /* JEDEC JEP106Z specifies ID codes up to bank 7 */ + while (manuId == FLASH_CONTINUATION_CODE && bankId < 0x800) { + bankId += 0x100; + manuId = flash_read_uchar (info, + bankId | FLASH_OFFSET_MANUFACTURER_ID); + } + info->manufacturer_id = manuId;
switch (info->chipwidth){ case FLASH_CFI_8BIT: diff --git a/drivers/mtd/jedec_flash.c b/drivers/mtd/jedec_flash.c index e48acec..223fb71 100644 --- a/drivers/mtd/jedec_flash.c +++ b/drivers/mtd/jedec_flash.c @@ -68,6 +68,17 @@ #define SST39SF010A 0x00B5 #define SST39SF020A 0x00B6
+/* MXIC */ +#define MX29LV040 0x004F + +/* WINBOND */ +#define W39L040A 0x00D6 + +/* AMIC */ +#define A29L040 0x0092 + +/* EON */ +#define EN29LV040A 0x004F
/* * Unlock address sets for AMD command sets. @@ -225,6 +236,62 @@ static const struct amd_flash_info jedec_table[] = { ERASEINFO(0x10000,8), } }, + { + .mfr_id = (u16)MX_MANUFACT, + .dev_id = MX29LV040, + .name = "MXIC MX29LV040", + .uaddr = { + [0] = MTD_UADDR_0x0555_0x02AA /* x8 */ + }, + .DevSize = SIZE_512KiB, + .CmdSet = P_ID_AMD_STD, + .NumEraseRegions= 1, + .regions = { + ERASEINFO(0x10000, 8), + } + }, + { + .mfr_id = (u16)WINB_MANUFACT, + .dev_id = W39L040A, + .name = "WINBOND W39L040A", + .uaddr = { + [0] = MTD_UADDR_0x5555_0x2AAA /* x8 */ + }, + .DevSize = SIZE_512KiB, + .CmdSet = P_ID_AMD_STD, + .NumEraseRegions= 1, + .regions = { + ERASEINFO(0x10000, 8), + } + }, + { + .mfr_id = (u16)AMIC_MANUFACT, + .dev_id = A29L040, + .name = "AMIC A29L040", + .uaddr = { + [0] = MTD_UADDR_0x0555_0x02AA /* x8 */ + }, + .DevSize = SIZE_512KiB, + .CmdSet = P_ID_AMD_STD, + .NumEraseRegions= 1, + .regions = { + ERASEINFO(0x10000, 8), + } + }, + { + .mfr_id = (u16)EON_MANUFACT, + .dev_id = EN29LV040A, + .name = "EON EN29LV040A", + .uaddr = { + [0] = MTD_UADDR_0x0555_0x02AA /* x8 */ + }, + .DevSize = SIZE_512KiB, + .CmdSet = P_ID_AMD_STD, + .NumEraseRegions= 1, + .regions = { + ERASEINFO(0x10000, 8), + } + }, #endif #ifdef CONFIG_SYS_FLASH_LEGACY_512Kx16 { diff --git a/include/flash.h b/include/flash.h index b016162..8feca1b 100644 --- a/include/flash.h +++ b/include/flash.h @@ -46,7 +46,7 @@ typedef struct { ushort cmd_reset; /* vendor specific reset command */ ushort interface; /* used for x8/x16 adjustments */ ushort legacy_unlock; /* support Intel legacy (un)locking */ - uchar manufacturer_id; /* manufacturer id */ + ushort manufacturer_id; /* manufacturer id */ ushort device_id; /* device id */ ushort device_id2; /* extended device id */ ushort ext_addr; /* extended query table address */ @@ -154,6 +154,7 @@ extern flash_info_t *flash_get_info(ulong base); * Device IDs */
+/* Manufacturers inside bank 0 have ids like 0x00xx00xx */ #define AMD_MANUFACT 0x00010001 /* AMD manuf. ID in D23..D16, D7..D0 */ #define FUJ_MANUFACT 0x00040004 /* FUJITSU manuf. ID in D23..D16, D7..D0 */ #define ATM_MANUFACT 0x001F001F /* ATMEL */ @@ -166,6 +167,13 @@ extern flash_info_t *flash_get_info(ulong base); #define TOSH_MANUFACT 0x00980098 /* TOSHIBA manuf. ID in D23..D16, D7..D0 */ #define MT2_MANUFACT 0x002C002C /* alternate MICRON manufacturer ID*/ #define EXCEL_MANUFACT 0x004A004A /* Excel Semiconductor */ +#define AMIC_MANUFACT 0x00370037 /* AMIC manuf. ID in D23..D16, D7..D0 */ +#define WINB_MANUFACT 0x00DA00DA /* Winbond manuf. ID in D23..D16, D7..D0 */ + +/* Manufacturers inside bank 1 have ids like 0x01xx01xx */ +#define EON_MANUFACT 0x011C011C /* EON manuf. ID in D23..D16, D7..D0 */ + +/* Manufacturers inside bank 2 have ids like 0x02xx02xx */
/* Micron Technologies (INTEL compat.) */ #define MT_ID_28F400_T 0x44704470 /* 28F400B3 ID ( 4 M, top boot sector) */