| Message ID | 20250110-winbond-6-12-rc1-nor-volatile-bit-v3-2-735363f8cc7d@bootlin.com |
|---|---|
| State | Accepted |
| Headers | show |
| Series | mtd: spi-nor: winbond: Add support for flashes with several dies | expand |
On Fri, Jan 10 2025, Miquel Raynal wrote: > Add support for Winbond w25q02jv spi-nor chip which shares most of > w25q01jv's specificities as, this time, the chip is made of 4 different > dies. > > Link: https://www.winbond.com/resource-files/W25Q02JV_DTR%20RevD%2007092024%20Plus.pdf > Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Pratyush Yadav <pratyush@kernel.org>
diff --git a/drivers/mtd/spi-nor/winbond.c b/drivers/mtd/spi-nor/winbond.c index a4c0d99dde4fcd2b123eb7ded4f7822110c6a4ae..63a93c9eb9174b073e19c41eeada33b23a99b184 100644 --- a/drivers/mtd/spi-nor/winbond.c +++ b/drivers/mtd/spi-nor/winbond.c @@ -305,6 +305,10 @@ static const struct flash_info winbond_nor_parts[] = { }, { .id = SNOR_ID(0xef, 0x70, 0x19), .name = "w25q256jvm", + }, { + /* W25Q02JV */ + .id = SNOR_ID(0xef, 0x70, 0x22), + .fixups = &winbond_nor_multi_die_fixups, }, { .id = SNOR_ID(0xef, 0x71, 0x19), .name = "w25m512jv",
Add support for Winbond w25q02jv spi-nor chip which shares most of w25q01jv's specificities as, this time, the chip is made of 4 different dies. Link: https://www.winbond.com/resource-files/W25Q02JV_DTR%20RevD%2007092024%20Plus.pdf Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> --- Here is the basic test procedure output: $ cat /sys/bus/spi/devices/spi0.0/spi-nor/jedec_id ef7022 $ cat /sys/bus/spi/devices/spi0.0/spi-nor/manufacturer winbond $ xxd -p /sys/bus/spi/devices/spi0.0/spi-nor/sfdp 53464450060101ff00060110800000ff84000102d00000ff03000102f000 00ffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ffffffffffffffffe520fbffffffff7f44eb086b083b42bbfeffffffffff 0000ffff40eb0c200f5210d800003602a60082ea14e2e96376337a757a75 f7a2d55c19f74dffe970f9a5ffffffffffffffffffffffffffffffffff0a f0ff21ffdcff $ md5suum /sys/bus/spi/devices/spi0.0/spi-nor/sfdp 3e7da68579120c32a12517d2b6634c3c /sys/bus/spi/devices/spi0.0/spi-nor/sfdp $ dd if=/dev/urandom of=./qspi_test bs=1M count=1 1+0 records in 1+0 records out $ mtd_debug write /dev/mtd0 0 1048576 qspi_test Copied 1048576 bytes from qspi_test to address 0x00000000 in flash $ mtd_debug erase /dev/mtd0 0 1048576 Erased 1048576 bytes from address 0x00000000 in flash $ mtd_debug read /dev/mtd0 0 1048576 qspi_read Copied 1048576 bytes from address 0x00000000 in flash to qspi_read $ hexdump qspi_read 0000000 ffff ffff ffff ffff ffff ffff ffff ffff * 0100000 $ mtd_debug write /dev/mtd0 0 1048576 qspi_test Copied 1048576 bytes from qspi_test to address 0x00000000 in flash $ mtd_debug read /dev/mtd0 0 1048576 qspi_read Copied 1048576 bytes from address 0x00000000 in flash to qspi_read $ sha1sum qspi_test qspi_read c662ae4e6b1268e23d5a5e930995213d2e4044cc qspi_test c662ae4e6b1268e23d5a5e930995213d2e4044cc qspi_read --- drivers/mtd/spi-nor/winbond.c | 4 ++++ 1 file changed, 4 insertions(+)