diff options
| author | Mamta Shukla <mamta.shukla@leica-geosystems.com> | 2023-10-17 10:47:11 +0300 |
|---|---|---|
| committer | Tudor Ambarus <tudor.ambarus@linaro.org> | 2023-10-18 07:47:22 +0300 |
| commit | 6823a8383420263bc061865027836755615a275f (patch) | |
| tree | 2b77b358d71911201d5c3563c4c511b5f3bde038 /drivers/mtd/spi-nor/micron-st.c | |
| parent | a2a3e5430e7beaabb58107ebb9deb7ee5dbce3fa (diff) | |
| download | linux-6823a8383420263bc061865027836755615a275f.tar.xz | |
mtd: spi-nor: micron-st: use SFDP table for mt25qu512a
Parse SFDP table to get size and functions of mt25qu512a. BFPT wrongly
advertises 16bit SR support and made the locking fail. Add a post BFPT
fixup hook to clear the 16bit SR support.
cat /sys/bus/spi/devices/spi-PRP0001:00/spi-nor/jedec_id
20bb20104400
cat /sys/bus/spi/devices/spi-PRP0001:00/spi-nor/manufacturer
st
cat /sys/bus/spi/devices/spi-PRP0001:00/spi-nor/partname
mt25qu512a
xxd -p /sys/bus/spi/devices/spi-PRP0001:00/spi-nor/sfdp
53464450060101ff00060110300000ff84000102800000ffffffffffffff
ffffffffffffffffffffffffffffffffffffe520fbffffffff1f29eb276b
273b27bbffffffffffff27bbffff29eb0c2010d80f520000244a99008b8e
03e1ac0127387a757a75fbbdd55c4a0f82ff81bd3d36ffffffffffffffff
ffffffffffffffffffe7ffff21dcffff
md5sum /sys/bus/spi/devices/spi-PRP0001:00/spi-nor/sfdp
610efba1647e00ac6db18beb11e84c04
/sys/bus/spi/devices/spi-PRP0001:00/spi-nor/sfdp
Signed-off-by: Mamta Shukla <mamta.shukla@leica-geosystems.com>
Reviewed-by: Pratyush Yadav <pratyush@kernel.org>
Link: https://lore.kernel.org/r/20231017074711.12167-2-tudor.ambarus@linaro.org
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Diffstat (limited to 'drivers/mtd/spi-nor/micron-st.c')
| -rw-r--r-- | drivers/mtd/spi-nor/micron-st.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/mtd/spi-nor/micron-st.c b/drivers/mtd/spi-nor/micron-st.c index 756391c906e5..8920547c12bf 100644 --- a/drivers/mtd/spi-nor/micron-st.c +++ b/drivers/mtd/spi-nor/micron-st.c @@ -180,6 +180,18 @@ static const struct flash_info micron_nor_parts[] = { }, }; +static int mt25qu512a_post_bfpt_fixup(struct spi_nor *nor, + const struct sfdp_parameter_header *bfpt_header, + const struct sfdp_bfpt *bfpt) +{ + nor->flags &= ~SNOR_F_HAS_16BIT_SR; + return 0; +} + +static struct spi_nor_fixups mt25qu512a_fixups = { + .post_bfpt = mt25qu512a_post_bfpt_fixup, +}; + static const struct flash_info st_nor_parts[] = { { .name = "m25p05-nonjedec", @@ -407,10 +419,8 @@ static const struct flash_info st_nor_parts[] = { .name = "mt25qu512a", .flags = SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB | SPI_NOR_4BIT_BP | SPI_NOR_BP3_SR_BIT6, - .size = SZ_64M, - .no_sfdp_flags = SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ, - .fixup_flags = SPI_NOR_4B_OPCODES, .mfr_flags = USE_FSR, + .fixups = &mt25qu512a_fixups, }, { .id = SNOR_ID(0x20, 0xbb, 0x20), .name = "n25q512a", |