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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org On 8/9/22 23:14, Sudip Mukherjee wrote: > EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe > > The datasheet of is25wp256 says it supports SFDP. Get rid of the static > initialization of the flash parameters and init them when parsing SFDP. > > Testing showed the flash using SPINOR_OP_READ_1_1_4_4B 0x6c, > SPINOR_OP_PP_4B 0x12 and SPINOR_OP_BE_4K_4B 0x21 before enabling SFDP. > After this patch, it parses the SFDP information and still uses the > same opcodes. > > Signed-off-by: Sudip Mukherjee > --- > drivers/mtd/spi-nor/issi.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/mtd/spi-nor/issi.c b/drivers/mtd/spi-nor/issi.c > index 89a66a19d754..8b48459b5054 100644 > --- a/drivers/mtd/spi-nor/issi.c > +++ b/drivers/mtd/spi-nor/issi.c > @@ -71,7 +71,7 @@ static const struct flash_info issi_nor_parts[] = { > { "is25wp128", INFO(0x9d7018, 0, 64 * 1024, 256) > NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) }, > { "is25wp256", INFO(0x9d7019, 0, 64 * 1024, 512) > - NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) > + PARSE_SFDP > FIXUP_FLAGS(SPI_NOR_4B_OPCODES) > .fixups = &is25lp256_fixups }, > > -- > 2.30.2 > Looks good to me. When submitting flash updates or new flash additions, we require contributors to do a little test using mtd-utils and to dump the SPI NOR sysfs entries. Would you please do that? Here's the simple test: Run the test_qspi.sh script: #!/bin/sh dd if=/dev/urandom of=./qspi_test bs=1M count=6 mtd_debug write /dev/mtd5 0 6291456 qspi_test mtd_debug erase /dev/mtd5 0 6291456 mtd_debug read /dev/mtd5 0 6291456 qspi_read hexdump qspi_read mtd_debug write /dev/mtd5 0 6291456 qspi_test mtd_debug read /dev/mtd5 0 6291456 qspi_read sha1sum qspi_test qspi_read The two SHA-1 sums must be the same to pass this test. Here's an example on how to dumps the sysfs entries: zynq> cat /sys/bus/spi/devices/spi0.0/spi-nor/partname s25hl02gt zynq> cat /sys/bus/spi/devices/spi0.0/spi-nor/jedec_id 342a1c0f0090 zynq> cat /sys/bus/spi/devices/spi0.0/spi-nor/manufacturer spansion zynq> xxd -p /sys/bus/spi/devices/spi0.0/spi-nor/sfdp 53464450080104ff00080114000100ff84000102500100ff81000118e001 00ff8700011c580100ff88000106c80100ffffffffffffffffffffffffff ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ffffffffffffffffffffffffffffffffe720faffffffff7f48eb086b00ff 88bbfeffffffffff00ffffff48eb0c2000ff00ff12d823faff8b82e7ffec ec031c608a857a75f766805c8cd6ddfff938c0a1000000000000bc000000 0000f7f5ffff7b920ffe21ffffdc0000800000000000c0ffc3fbc8ffe3fb 00650090066500b10065009600650095716503d0716503d000000000b02e 000088a489aa716503967165039600000000000000000000000000000000 000000000000000000000000000000000000000000000000716505d57165 05d50000a015000080080000000800008010000000100000801800000018 fc65ff0804008000fc65ff0402008000fc65ff0804008008fd65ff040200 8008fe0202fff1ff0100f8ff0100f8fffb0ffe0902fff8fffb0ff8ff0100 f1ff0100fe0104fff1ff0100f8ff0100f8fff70ff8ff0100f1ff0100ff0a 00fff8ffff0f zynq> md5sum /sys/bus/spi/devices/spi0.0/spi-nor/sfdp 86aef254bcfdf763bdb92e4c31667242 /sys/bus/spi/devices/spi0.0/spi-nor/sfdp Thanks! -- Cheers, ta ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/