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Add M25P20-old

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This older (ST-branded) revision of M25P20 chip does not support RDID and
hence was not detected correctly. This patch adds a workaround similar
to M25P40-old.

Corresponding to flashrom svn r1652.

Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Acked-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
This commit is contained in:
Kyösti Mälkki 2013-03-04 01:20:28 +00:00 committed by Stefan Tauner
parent 50d67aaa79
commit c54adc5852
2 changed files with 33 additions and 3 deletions
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35
flashchips.c
View File

@ -8298,7 +8298,7 @@ const struct flashchip flashchips[] = {
},
{
.vendor = "ST",
.vendor = "ST", /* Numonyx */
.name = "M25P20",
.bustype = BUS_SPI,
.manufacture_id = ST_ID,
@ -8319,10 +8319,39 @@ const struct flashchip flashchips[] = {
.block_erase = spi_block_erase_c7,
}
},
.printlock = spi_prettyprint_status_register_default_bp3, /* TODO: check */
.printlock = spi_prettyprint_status_register_default_bp1,
.unlock = spi_disable_blockprotect,
.write = spi_chip_write_256,
.read = spi_chip_read,
.read = spi_chip_read, /* Fast read (0x0B) supported */
.voltage = {2700, 3600},
},
{
.vendor = "ST",
.name = "M25P20-old",
.bustype = BUS_SPI,
.manufacture_id = 0, /* Not used. */
.model_id = ST_M25P20_RES,
.total_size = 256,
.page_size = 256,
.feature_bits = FEATURE_WRSR_WREN,
.tested = TEST_OK_PREW,
.probe = probe_spi_res1,
.probe_timing = TIMING_ZERO,
.block_erasers =
{
{
.eraseblocks = { {64 * 1024, 4} },
.block_erase = spi_block_erase_d8,
}, {
.eraseblocks = { {256 * 1024, 1} },
.block_erase = spi_block_erase_c7,
}
},
.printlock = spi_prettyprint_status_register_default_bp1,
.unlock = spi_disable_blockprotect,
.write = spi_chip_write_256,
.read = spi_chip_read, /* Fast read (0x0B) supported */
.voltage = {2700, 3600},
},

1
flashchips.h
View File

@ -572,6 +572,7 @@
#define ST_M25P10A 0x2011
#define ST_M25P10_RES 0x10 /* Same code as M25P05. */
#define ST_M25P20 0x2012
#define ST_M25P20_RES 0x11
#define ST_M25P40 0x2013
#define ST_M25P40_RES 0x12
#define ST_M25P80 0x2014