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Add support for two-byte RES probes

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Some chips implement the RES (0xab) opcode, but they use a non-standard
two byte response instead of the usual one byte response. A two-byte
response has the accuracy of REMS and RDID, so don't check for REMS/RDID
availability before running a two-byte RES.

Corresponding to flashrom svn r1017.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
This commit is contained in:
Carl-Daniel Hailfinger
2010-05-28 17:07:57 +00:00
parent 80f3d05e73
commit dc1cda15d4
4 changed files with 43 additions and 14 deletions
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14
flashchips.c
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@ -4665,19 +4665,19 @@ struct flashchip flashchips[] = {
/* 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
* of 256 byte writes. We rely heavily on the fact that probe_spi_res1
* only is successful if RDID does not work.
*/
{
.vendor = "ST",
.name = "M25P05.RES",
.bustype = CHIP_BUSTYPE_SPI,
.manufacture_id = ST_ID,
.manufacture_id = 0, /* Not used. */
.model_id = ST_M25P05_RES,
.total_size = 64,
.page_size = 256,
.tested = TEST_UNTESTED,
.probe = probe_spi_res,
.probe = probe_spi_res1,
.probe_timing = TIMING_ZERO,
.block_erasers =
{
@ -4723,12 +4723,12 @@ struct flashchip flashchips[] = {
.vendor = "ST",
.name = "M25P10.RES",
.bustype = CHIP_BUSTYPE_SPI,
.manufacture_id = ST_ID,
.manufacture_id = 0, /* Not used. */
.model_id = ST_M25P10_RES,
.total_size = 128,
.page_size = 256,
.tested = TEST_UNTESTED,
.probe = probe_spi_res,
.probe = probe_spi_res1,
.probe_timing = TIMING_ZERO,
.block_erasers =
{
@ -4798,12 +4798,12 @@ struct flashchip flashchips[] = {
.vendor = "ST",
.name = "M25P40-old",
.bustype = CHIP_BUSTYPE_SPI,
.manufacture_id = ST_ID,
.manufacture_id = 0, /* Not used. */
.model_id = ST_M25P40_RES,
.total_size = 512,
.page_size = 256,
.tested = TEST_UNTESTED,
.probe = probe_spi_res,
.probe = probe_spi_res1,
.probe_timing = TIMING_ZERO,
.block_erasers =
{