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| author | Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> | 2009-07-23 01:40:20 +0000 |
|---|---|---|
| committer | Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> | 2009-07-23 01:40:20 +0000 |
| commit | 785ede988e5c8ab924da7607d6d0f2665aaabf28 (patch) | |
| tree | bcd535a1f032ade49c32e46ce82effe6d60326db | |
| parent | 97bb2139063bea42532324e04de3f1285b7864cb (diff) | |
| download | flashrom-785ede988e5c8ab924da7607d6d0f2665aaabf28.zip flashrom-785ede988e5c8ab924da7607d6d0f2665aaabf28.tar.gz | |
Add support for old ST M25P05/M25P10 chips which only respond to the RES command and not the RDID command
Unfortunately, either the datasheets are wrong or both chips have exactly
the same ID.
Corresponding to flashrom svn r662.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
| -rw-r--r-- | flashchips.c | 38 | ||||
| -rw-r--r-- | flashchips.h | 2 |
2 files changed, 40 insertions, 0 deletions
diff --git a/flashchips.c b/flashchips.c index d3c1831..fa5fdff 100644 --- a/flashchips.c +++ b/flashchips.c @@ -2249,6 +2249,27 @@ struct flashchip flashchips[] = { .read = spi_chip_read, }, + /* The ST M25P05 is a bit of a problem. It has the same ID as the + * ST M25P05-A in RES mode, but supports only 128 byte writes instead + * of 256 byte writes. We rely heavily on the fact that probe_spi_res + * only is successful if RDID does not work. + */ + { + .vendor = "ST", + .name = "M25P05.RES", + .bustype = CHIP_BUSTYPE_SPI, + .manufacture_id = ST_ID, + .model_id = ST_M25P05_RES, + .total_size = 64, + .page_size = 256, + .tested = TEST_UNTESTED, + .probe = probe_spi_res, + .probe_timing = TIMING_ZERO, + .erase = spi_chip_erase_c7, + .write = spi_chip_write_1, /* 128 */ + .read = spi_chip_read, + }, + { .vendor = "ST", .name = "M25P10-A", @@ -2265,6 +2286,23 @@ struct flashchip flashchips[] = { .read = spi_chip_read, }, + /* The ST M25P10 has the same problem as the M25P05. */ + { + .vendor = "ST", + .name = "M25P10.RES", + .bustype = CHIP_BUSTYPE_SPI, + .manufacture_id = ST_ID, + .model_id = ST_M25P10_RES, + .total_size = 128, + .page_size = 256, + .tested = TEST_UNTESTED, + .probe = probe_spi_res, + .probe_timing = TIMING_ZERO, + .erase = spi_chip_erase_c7, + .write = spi_chip_write_1, /* 128 */ + .read = spi_chip_read, + }, + { .vendor = "ST", .name = "M25P20", diff --git a/flashchips.h b/flashchips.h index 0b58e50..0cd6895 100644 --- a/flashchips.h +++ b/flashchips.h @@ -322,7 +322,9 @@ */ #define ST_ID 0x20 /* ST / SGS/Thomson */ #define ST_M25P05A 0x2010 +#define ST_M25P05_RES 0x10 /* Same code as M25P10. */ #define ST_M25P10A 0x2011 +#define ST_M25P10_RES 0x10 /* Same code as M25P05. */ #define ST_M25P20 0x2012 #define ST_M25P40 0x2013 #define ST_M25P40_RES 0x12 |
