Here is a series adding support for 6 Winbond SPI NOR chips. Describing these chips is needed otherwise the block protection feature is not available. Everything else looks fine otherwise.
In practice I am only adding 6 very similar IDs but I split the commits because the amount of meta data to show proof that all the chips have been tested and work is pretty big.
As the commits simply add an ID, I am Cc'ing stable with the hope to get these backported to LTS kernels as allowed by the stable rules (see link below, but I hope I am doing this right).
Link: https://elixir.bootlin.com/linux/v6.17.7/source/Documentation/process/stable...
Thanks, Miquèl
--- Miquel Raynal (6): mtd: spi-nor: winbond: Add support for W25Q01NWxxIQ chips mtd: spi-nor: winbond: Add support for W25Q01NWxxIM chips mtd: spi-nor: winbond: Add support for W25Q02NWxxIM chips mtd: spi-nor: winbond: Add support for W25H512NWxxAM chips mtd: spi-nor: winbond: Add support for W25H01NWxxAM chips mtd: spi-nor: winbond: Add support for W25H02NWxxAM chips
drivers/mtd/spi-nor/winbond.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) --- base-commit: 479ba7fc704936b74a91ee352fe113d6391d562f change-id: 20251105-winbond-v6-18-rc1-spi-nor-7f78cb2785d6
Best regards,
This chip must be described as none of the block protection information are discoverable. This chip supports 4 bits plus the top/bottom addressing capability to identify the protected blocks.
Cc: stable@vger.kernel.org Signed-off-by: Miquel Raynal miquel.raynal@bootlin.com --- $ cat /sys/bus/spi/devices/spi0.0/spi-nor/partname cat: can't open '/sys/bus/spi/devices/spi0.0/spi-nor/partname': No such file or directory $ cat /sys/bus/spi/devices/spi0.0/spi-nor/jedec_id ef6021 $ cat /sys/bus/spi/devices/spi0.0/spi-nor/manufacturer winbond $ xxd -p /sys/bus/spi/devices/spi0.0/spi-nor/sfdp 53464450060101ff00060110800000ff84000102d00000ffffffffffffff ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ffffffffffffffffe520fbffffffff3f44eb086b083b42bbfeffffffffff 0000ffff40eb0c200f5210d800003652b50082ea14e2e96376337a757a75 f7bdd55c19f75dffe970f9a5ffffffffffffffffffffffffffffffffff0a f0ff21ffdcff $ sha256sum /sys/bus/spi/devices/spi0.0/spi-nor/sfdp d70b64bfa72dad202ff6881f92676b3a79b1e634b60653cd15f1820b7f3acaea /sys/bus/spi /devices/spi0.0/spi-nor/sfdp $ cat /sys/kernel/debug/spi-nor/spi0.0/capabilities Supported read modes by the flash 1S-1S-1S opcode 0x13 mode cycles 0 dummy cycles 0 1S-1S-2S opcode 0x3c mode cycles 0 dummy cycles 8 1S-2S-2S opcode 0xbc mode cycles 2 dummy cycles 2 1S-1S-4S opcode 0x6c mode cycles 0 dummy cycles 8 1S-4S-4S opcode 0xec mode cycles 2 dummy cycles 4 4S-4S-4S opcode 0xec mode cycles 2 dummy cycles 0
Supported page program modes by the flash 1S-1S-1S opcode 0x12 1S-1S-4S opcode 0x34 $ cat /sys/kernel/debug/spi-nor/spi0.0/params
name (null) id ef 60 21 00 00 00 size 128 MiB write size 1 page size 256 address nbytes 4 flags HAS_SR_TB | 4B_OPCODES | HAS_4BAIT | HAS_LOCK | HAS_16BIT_SR | HAS_SR_TB_BIT6 | HAS_4BIT_BP | SOFT_RESET | NO_WP
opcodes read 0xec dummy cycles 6 erase 0xdc program 0x34 8D extension none
protocols read 1S-4S-4S write 1S-1S-4S register 1S-1S-1S
erase commands 21 (4.00 KiB) [1] dc (64.0 KiB) [3] c7 (128 MiB)
sector map region (in hex) | erase mask | overlaid ------------------+------------+--------- 00000000-07ffffff | [ 3] | no $ dd if=/dev/urandom of=./spi_test bs=1M count=2 2+0 records in 2+0 records out $ mtd_debug erase /dev/mtd0 0 2097152 Erased 2097152 bytes from address 0x00000000 in flash $ mtd_debug read /dev/mtd0 0 2097152 spi_read Copied 2097152 bytes from address 0x00000000 in flash to spi_read $ hexdump spi_read 0000000 ffff ffff ffff ffff ffff ffff ffff ffff * 0200000 $ sha256sum spi_read 4bda3a28f4ffe603c0ec1258c0034d65a1a0d35ab7bd523a834608adabf03cc5 spi_read $ mtd_debug write /dev/mtd0 0 2097152 spi_test Copied 2097152 bytes from spi_test to address 0x00000000 in flash $ mtd_debug read /dev/mtd0 0 2097152 spi_read Copied 2097152 bytes from address 0x00000000 in flash to spi_read $ sha256sum spi* 743a6228f6b523c54ee6670aac049b28b5ba5b70341815d50e5cb5a21d59cb8b spi_read 743a6228f6b523c54ee6670aac049b28b5ba5b70341815d50e5cb5a21d59cb8b spi_test $ mtd_debug erase /dev/mtd0 0 2097152 Erased 2097152 bytes from address 0x00000000 in flash $ mtd_debug read /dev/mtd0 0 2097152 spi_read Copied 2097152 bytes from address 0x00000000 in flash to spi_read $ sha256sum spi* 4bda3a28f4ffe603c0ec1258c0034d65a1a0d35ab7bd523a834608adabf03cc5 spi_read 743a6228f6b523c54ee6670aac049b28b5ba5b70341815d50e5cb5a21d59cb8b spi_test $ mtd_debug info /dev/mtd0 mtd.type = MTD_NORFLASH mtd.flags = MTD_CAP_NORFLASH mtd.size = 134217728 (128M) mtd.erasesize = 65536 (64K) mtd.writesize = 1 mtd.oobsize = 0 regions = 0 --- drivers/mtd/spi-nor/winbond.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/mtd/spi-nor/winbond.c b/drivers/mtd/spi-nor/winbond.c index 63a93c9eb9174b073e19c41eeada33b23a99b184..a13a1201eae92233091dde644d590baa57e97046 100644 --- a/drivers/mtd/spi-nor/winbond.c +++ b/drivers/mtd/spi-nor/winbond.c @@ -343,6 +343,10 @@ static const struct flash_info winbond_nor_parts[] = { .id = SNOR_ID(0xef, 0x80, 0x20), .name = "w25q512nwm", .otp = SNOR_OTP(256, 3, 0x1000, 0x1000), + }, { + /* W25Q01NWxxIQ */ + .id = SNOR_ID(0xef, 0x60, 0x21), + .flags = SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB | SPI_NOR_TB_SR_BIT6 | SPI_NOR_4BIT_BP, }, };
These chips must be described as none of the block protection information are discoverable. This chip supports 4 bits plus the top/bottom addressing capability to identify the protected blocks.
Cc: stable@vger.kernel.org Signed-off-by: Miquel Raynal miquel.raynal@bootlin.com --- $ cat /sys/bus/spi/devices/spi0.0/spi-nor/partname cat: can't open '/sys/bus/spi/devices/spi0.0/spi-nor/partname': No such file or directory $ cat /sys/bus/spi/devices/spi0.0/spi-nor/jedec_id ef8021 $ cat /sys/bus/spi/devices/spi0.0/spi-nor/manufacturer winbond $ xxd -p /sys/bus/spi/devices/spi0.0/spi-nor/sfdp 53464450060101ff00060110800000ff84000102d00000ffffffffffffff ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ffffffffffffffffe520fbffffffff3f44eb086b083b42bbfeffffffffff 0000ffff40eb0c200f5210d800003652b50082ea14e2e96376337a757a75 f7bdd55c19f75dffe970f9a5ffffffffffffffffffffffffffffffffff0a f0ff21ffdcff $ sha256sum /sys/bus/spi/devices/spi0.0/spi-nor/sfdp d70b64bfa72dad202ff6881f92676b3a79b1e634b60653cd15f1820b7f3acaea /sys/bus/spi/devices/spi0.0/spi-nor/sfdp $ cat /sys/kernel/debug/spi-nor/spi0.0/capabilities Supported read modes by the flash 1S-1S-1S opcode 0x13 mode cycles 0 dummy cycles 0 1S-1S-2S opcode 0x3c mode cycles 0 dummy cycles 8 1S-2S-2S opcode 0xbc mode cycles 2 dummy cycles 2 1S-1S-4S opcode 0x6c mode cycles 0 dummy cycles 8 1S-4S-4S opcode 0xec mode cycles 2 dummy cycles 4 4S-4S-4S opcode 0xec mode cycles 2 dummy cycles 0
Supported page program modes by the flash 1S-1S-1S opcode 0x12 1S-1S-4S opcode 0x34 $ cat /sys/kernel/debug/spi-nor/spi0.0/params name (null) id ef 80 21 00 00 00 size 128 MiB write size 1 page size 256 address nbytes 4 flags HAS_SR_TB | 4B_OPCODES | HAS_4BAIT | HAS_LOCK | HAS_16BIT_SR | HAS_SR_TB_BIT6 | HAS_4BIT_BP | SOFT_RESET | NO_WP
opcodes read 0xec dummy cycles 6 erase 0xdc program 0x34 8D extension none
protocols read 1S-4S-4S write 1S-1S-4S register 1S-1S-1S
erase commands 21 (4.00 KiB) [1] dc (64.0 KiB) [3] c7 (128 MiB)
sector map region (in hex) | erase mask | overlaid ------------------+------------+--------- 00000000-07ffffff | [ 3] | no $ dd if=/dev/urandom of=./spi_test bs=1M count=2 2+0 records in 2+0 records out $ mtd_debug erase /dev/mtd0 0 2097152 Erased 2097152 bytes from address 0x00000000 in flash $ mtd_debug read /dev/mtd0 0 2097152 spi_read Copied 2097152 bytes from address 0x00000000 in flash to spi_read $ hexdump spi_read
0000000 ffff ffff ffff ffff ffff ffff ffff ffff * 0200000 $ sha256sum spi_read 4bda3a28f4ffe603c0ec1258c0034d65a1a0d35ab7bd523a834608adabf03cc5 spi_read $ mtd_debug write /dev/mtd0 0 2097152 spi_test Copied 2097152 bytes from spi_test to address 0x00000000 in flash $ mtd_debug read /dev/mtd0 0 2097152 spi_read Copied 2097152 bytes from address 0x00000000 in flash to spi_read $ sha256sum spi* 900fef48fdac362ce15d4608acfd9d733b514751423ae8d26e94036531198fb8 spi_read 900fef48fdac362ce15d4608acfd9d733b514751423ae8d26e94036531198fb8 spi_test $ mtd_debug erase /dev/mtd0 0 2097152 Erased 2097152 bytes from address 0x00000000 in flash $ mtd_debug read /dev/mtd0 0 2097152 spi_read Copied 2097152 bytes from address 0x00000000 in flash to spi_read $ sha256sum spi* 4bda3a28f4ffe603c0ec1258c0034d65a1a0d35ab7bd523a834608adabf03cc5 spi_read 900fef48fdac362ce15d4608acfd9d733b514751423ae8d26e94036531198fb8 spi_test $ mtd_debug info /dev/mtd0 mtd.type = MTD_NORFLASH mtd.flags = MTD_CAP_NORFLASH mtd.size = 134217728 (128M) mtd.erasesize = 65536 (64K) mtd.writesize = 1 mtd.oobsize = 0 regions = 0 --- drivers/mtd/spi-nor/winbond.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/mtd/spi-nor/winbond.c b/drivers/mtd/spi-nor/winbond.c index a13a1201eae92233091dde644d590baa57e97046..580c9cb37958136e7e9fbc71152de55ab008812e 100644 --- a/drivers/mtd/spi-nor/winbond.c +++ b/drivers/mtd/spi-nor/winbond.c @@ -347,6 +347,10 @@ static const struct flash_info winbond_nor_parts[] = { /* W25Q01NWxxIQ */ .id = SNOR_ID(0xef, 0x60, 0x21), .flags = SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB | SPI_NOR_TB_SR_BIT6 | SPI_NOR_4BIT_BP, + }, { + /* W25Q01NWxxIM */ + .id = SNOR_ID(0xef, 0x80, 0x21), + .flags = SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB | SPI_NOR_TB_SR_BIT6 | SPI_NOR_4BIT_BP, }, };
These chips must be described as none of the block protection information are discoverable. This chip supports 4 bits plus the top/bottom addressing capability to identify the protected blocks.
Cc: stable@vger.kernel.org Signed-off-by: Miquel Raynal miquel.raynal@bootlin.com --- $ cat /sys/bus/spi/devices/spi0.0/spi-nor/partname cat: can't open '/sys/bus/spi/devices/spi0.0/spi-nor/partname': No such file or directory $ cat /sys/bus/spi/devices/spi0.0/spi-nor/jedec_id ef8022 $ 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 0000ffff40eb0c200f5210d800003652b50082ea14e2e96376337a757a75 f7a2d55c199148ffe970f8a1ffffffffffffffffffffffffffffffffff0a f0ff21ffdcff $ sha256sum /sys/bus/spi/devices/spi0.0/spi-nor/sfdp 679145368f2188ac975ec3f4c9b691e7e250147c13b6f18a28a9192700925d95 /sys/bus/spi/devices/spi0.0/spi-nor/sfdp $ cat /sys/kernel/debug/spi-nor/spi0.0/params name (null) id ef 80 22 00 00 00 size 256 MiB write size 1 page size 256 address nbytes 4 flags HAS_SR_TB | 4B_OPCODES | HAS_4BAIT | HAS_LOCK | HAS_16BIT_SR | NO_READ_CR | HAS_SR_TB_BIT6 | HAS_4BIT_BP | SOFT_RESET | NO_WP
opcodes read 0xec dummy cycles 6 erase 0xdc program 0x34 8D extension none
protocols read 1S-4S-4S write 1S-1S-4S register 1S-1S-1S
erase commands 21 (4.00 KiB) [1] dc (64.0 KiB) [3] c7 (256 MiB)
sector map region (in hex) | erase mask | overlaid ------------------+------------+--------- 00000000-0fffffff | [ 3] | no $ cat /sys/kernel/debug/spi-nor/spi0.0/capabilities Supported read modes by the flash 1S-1S-1S opcode 0x13 mode cycles 0 dummy cycles 0 1S-1S-2S opcode 0x3c mode cycles 0 dummy cycles 8 1S-2S-2S opcode 0xbc mode cycles 2 dummy cycles 2 1S-1S-4S opcode 0x6c mode cycles 0 dummy cycles 8 1S-4S-4S opcode 0xec mode cycles 2 dummy cycles 4 4S-4S-4S opcode 0xec mode cycles 2 dummy cycles 0
Supported page program modes by the flash 1S-1S-1S opcode 0x12 1S-1S-4S opcode 0x34 $ dd if=/dev/urandom of=./spi_test bs=1M count=2 2+0 records in 2+0 records out $ mtd_debug erase /dev/mtd0 0 2097152 Erased 2097152 bytes from address 0x00000000 in flash $ mtd_debug read /dev/mtd0 0 2097152 spi_read Copied 2097152 bytes from address 0x00000000 in flash to spi_read $ hexdump spi_read 0000000 ffff ffff ffff ffff ffff ffff ffff ffff * 0200000 $ sha256sum spi_read 4bda3a28f4ffe603c0ec1258c0034d65a1a0d35ab7bd523a834608adabf03cc5 spi_read $ mtd_debug write /dev/mtd0 0 2097152 spi_test Copied 2097152 bytes from spi_test to address 0x00000000 in flash $ mtd_debug read /dev/mtd0 0 2097152 spi_read Copied 2097152 bytes from address 0x00000000 in flash to spi_read $ sha256sum spi* 5cff8d15609f3eab8d8008699191d5418da5b346e4f98ab67d5d89702b584042 spi_read 5cff8d15609f3eab8d8008699191d5418da5b346e4f98ab67d5d89702b584042 spi_test $ mtd_debug erase /dev/mtd0 0 2097152 Erased 2097152 bytes from address 0x00000000 in flash $ mtd_debug read /dev/mtd0 0 2097152 spi_read Copied 2097152 bytes from address 0x00000000 in flash to spi_read $ sha256sum spi* 4bda3a28f4ffe603c0ec1258c0034d65a1a0d35ab7bd523a834608adabf03cc5 spi_read 5cff8d15609f3eab8d8008699191d5418da5b346e4f98ab67d5d89702b584042 spi_test $ mtd_debug info /dev/mtd0 mtd.type = MTD_NORFLASH mtd.flags = MTD_CAP_NORFLASH mtd.size = 268435456 (256M) mtd.erasesize = 65536 (64K) mtd.writesize = 1 mtd.oobsize = 0 regions = 0 --- drivers/mtd/spi-nor/winbond.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/mtd/spi-nor/winbond.c b/drivers/mtd/spi-nor/winbond.c index 580c9cb37958136e7e9fbc71152de55ab008812e..a65cbbccbbac64c83227c8158ff85abfa3441868 100644 --- a/drivers/mtd/spi-nor/winbond.c +++ b/drivers/mtd/spi-nor/winbond.c @@ -351,6 +351,10 @@ static const struct flash_info winbond_nor_parts[] = { /* W25Q01NWxxIM */ .id = SNOR_ID(0xef, 0x80, 0x21), .flags = SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB | SPI_NOR_TB_SR_BIT6 | SPI_NOR_4BIT_BP, + }, { + /* W25Q02NWxxIM */ + .id = SNOR_ID(0xef, 0x80, 0x22), + .flags = SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB | SPI_NOR_TB_SR_BIT6 | SPI_NOR_4BIT_BP, }, };
These chips must be described as none of the block protection information are discoverable. This chip supports 4 bits plus the top/bottom addressing capability to identify the protected blocks.
Cc: stable@vger.kernel.org Signed-off-by: Miquel Raynal miquel.raynal@bootlin.com --- $ cat /sys/bus/spi/devices/spi0.0/spi-nor/partname cat: can't open '/sys/bus/spi/devices/spi0.0/spi-nor/partname': No such file or directory $ cat /sys/bus/spi/devices/spi0.0/spi-nor/jedec_id efa020 $ cat /sys/bus/spi/devices/spi0.0/spi-nor/manufacturer winbond $ xxd -p /sys/bus/spi/devices/spi0.0/spi-nor/sfdp 53464450060101ff00060110800000ff84000102d00000ffffffffffffff ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ffffffffffffffffe520fbffffffff1f44eb086b083b42bbfeffffffffff 0000ffff40eb0c200f5210d800003302a60081e714d9e96376337a757a75 f7bdd55c19f75dffe970f9a5ffffffffffffffffffffffffffffffffff0a f0ff21ffdcff $ sha256sum /sys/bus/spi/devices/spi0.0/spi-nor/sfdp 07b7eff0cc6e637cbe3282c0ee75bd23e0da622ca26319238c07bcb4d677fb34 /sys/bus/spi/devices/spi0.0/spi-nor/sfdp $ cat /sys/kernel/debug/spi-nor/spi0.0/params name (null) id ef a0 20 00 00 00 size 64.0 MiB write size 1 page size 256 address nbytes 4 flags HAS_SR_TB | 4B_OPCODES | HAS_4BAIT | HAS_LOCK | HAS_16BIT_SR | HAS_SR_TB_BIT6 | HAS_4BIT_BP | SOFT_RESET | NO_WP
opcodes read 0xec dummy cycles 6 erase 0xdc program 0x34 8D extension none
protocols read 1S-4S-4S write 1S-1S-4S register 1S-1S-1S
erase commands 21 (4.00 KiB) [1] dc (64.0 KiB) [3] c7 (64.0 MiB)
sector map region (in hex) | erase mask | overlaid ------------------+------------+--------- 00000000-03ffffff | [ 3] | no $ cat /sys/kernel/debug/spi-nor/spi0.0/capabilities Supported read modes by the flash 1S-1S-1S opcode 0x13 mode cycles 0 dummy cycles 0 1S-1S-2S opcode 0x3c mode cycles 0 dummy cycles 8 1S-2S-2S opcode 0xbc mode cycles 2 dummy cycles 2 1S-1S-4S opcode 0x6c mode cycles 0 dummy cycles 8 1S-4S-4S opcode 0xec mode cycles 2 dummy cycles 4 4S-4S-4S opcode 0xec mode cycles 2 dummy cycles 0
Supported page program modes by the flash 1S-1S-1S opcode 0x12 1S-1S-4S opcode 0x34 $ dd if=/dev/urandom of=./spi_test bs=1M count=2 2+0 records in 2+0 records out $ mtd_debug erase /dev/mtd0 0 2097152 Erased 2097152 bytes from address 0x00000000 in flash $ mtd_debug read /dev/mtd0 0 2097152 spi_read Copied 2097152 bytes from address 0x00000000 in flash to spi_read $ hexdump spi_read 0000000 ffff ffff ffff ffff ffff ffff ffff ffff * 0200000 $ sha256sum spi_read 4bda3a28f4ffe603c0ec1258c0034d65a1a0d35ab7bd523a834608adabf03cc5 spi_read $ mtd_debug write /dev/mtd0 0 2097152 spi_test Copied 2097152 bytes from spi_test to address 0x00000000 in flash $ mtd_debug read /dev/mtd0 0 2097152 spi_read Copied 2097152 bytes from address 0x00000000 in flash to spi_read $ sha256sum spi* 40a9f42f218c8f909eb9f13e5edb964be55d5a962a91ad54f6b1dcf51ca637ad spi_read 40a9f42f218c8f909eb9f13e5edb964be55d5a962a91ad54f6b1dcf51ca637ad spi_test $ mtd_debug erase /dev/mtd0 0 2097152 Erased 2097152 bytes from address 0x00000000 in flash $ mtd_debug read /dev/mtd0 0 2097152 spi_read Copied 2097152 bytes from address 0x00000000 in flash to spi_read $ sha256sum spi* 4bda3a28f4ffe603c0ec1258c0034d65a1a0d35ab7bd523a834608adabf03cc5 spi_read 40a9f42f218c8f909eb9f13e5edb964be55d5a962a91ad54f6b1dcf51ca637ad spi_test $ mtd_debug info /dev/mtd0 mtd.type = MTD_NORFLASH mtd.flags = MTD_CAP_NORFLASH mtd.size = 67108864 (64M) mtd.erasesize = 65536 (64K) mtd.writesize = 1 mtd.oobsize = 0 regions = 0 --- drivers/mtd/spi-nor/winbond.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/mtd/spi-nor/winbond.c b/drivers/mtd/spi-nor/winbond.c index a65cbbccbbac64c83227c8158ff85abfa3441868..781ca0abfcdca2dc883e33bfa5c164623cf0905d 100644 --- a/drivers/mtd/spi-nor/winbond.c +++ b/drivers/mtd/spi-nor/winbond.c @@ -355,6 +355,10 @@ static const struct flash_info winbond_nor_parts[] = { /* W25Q02NWxxIM */ .id = SNOR_ID(0xef, 0x80, 0x22), .flags = SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB | SPI_NOR_TB_SR_BIT6 | SPI_NOR_4BIT_BP, + }, { + /* W25H512NWxxAM */ + .id = SNOR_ID(0xef, 0xa0, 0x20), + .flags = SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB | SPI_NOR_TB_SR_BIT6 | SPI_NOR_4BIT_BP, }, };
These chips must be described as none of the block protection information are discoverable. This chip supports 4 bits plus the top/bottom addressing capability to identify the protected blocks.
Cc: stable@vger.kernel.org Signed-off-by: Miquel Raynal miquel.raynal@bootlin.com --- $ cat /sys/bus/spi/devices/spi0.0/spi-nor/partname cat: can't open '/sys/bus/spi/devices/spi0.0/spi-nor/partname': No such file or directory $ cat /sys/bus/spi/devices/spi0.0/spi-nor/jedec_id efa021 $ cat /sys/bus/spi/devices/spi0.0/spi-nor/manufacturer winbond $ xxd -p /sys/bus/spi/devices/spi0.0/spi-nor/sfdp 53464450060101ff00060110800000ff84000102d00000ffffffffffffff ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ffffffffffffffffe520fbffffffff3f44eb086b083b42bbfeffffffffff 0000ffff40eb0c200f5210d800003652b50082ea14e2e96376337a757a75 f7bdd55c19f75dffe970f9a5ffffffffffffffffffffffffffffffffff0a f0ff21ffdcff $ sha256sum /sys/bus/spi/devices/spi0.0/spi-nor/sfdp d70b64bfa72dad202ff6881f92676b3a79b1e634b60653cd15f1820b7f3acaea /sys/bus/spi/devices/spi0.0/spi-nor/sfdp $ cat /sys/kernel/debug/spi-nor/spi0.0/params name (null) id ef a0 21 00 00 00 size 128 MiB write size 1 page size 256 address nbytes 4 flags HAS_SR_TB | 4B_OPCODES | HAS_4BAIT | HAS_LOCK | HAS_16BIT_SR | HAS_SR_TB_BIT6 | HAS_4BIT_BP | SOFT_RESET | NO_WP
opcodes read 0xec dummy cycles 6 erase 0xdc program 0x34 8D extension none
protocols read 1S-4S-4S write 1S-1S-4S register 1S-1S-1S
erase commands 21 (4.00 KiB) [1] dc (64.0 KiB) [3] c7 (128 MiB)
sector map region (in hex) | erase mask | overlaid ------------------+------------+--------- 00000000-07ffffff | [ 3] | no $ cat /sys/kernel/debug/spi-nor/spi0.0/capabilities Supported read modes by the flash 1S-1S-1S opcode 0x13 mode cycles 0 dummy cycles 0 1S-1S-2S opcode 0x3c mode cycles 0 dummy cycles 8 1S-2S-2S opcode 0xbc mode cycles 2 dummy cycles 2 1S-1S-4S opcode 0x6c mode cycles 0 dummy cycles 8 1S-4S-4S opcode 0xec mode cycles 2 dummy cycles 4 4S-4S-4S opcode 0xec mode cycles 2 dummy cycles 0
Supported page program modes by the flash 1S-1S-1S opcode 0x12 1S-1S-4S opcode 0x34 $ dd if=/dev/urandom of=./spi_test bs=1M count=2 2+0 records in 2+0 records out $ mtd_debug erase /dev/mtd0 0 2097152 Erased 2097152 bytes from address 0x00000000 in flash $ mtd_debug read /dev/mtd0 0 2097152 spi_read Copied 2097152 bytes from address 0x00000000 in flash to spi_read $ hexdump spi_read 0000000 ffff ffff ffff ffff ffff ffff ffff ffff * 0200000 $ sha256sum spi_read 4bda3a28f4ffe603c0ec1258c0034d65a1a0d35ab7bd523a834608adabf03cc5 spi_read $ mtd_debug write /dev/mtd0 0 2097152 spi_test Copied 2097152 bytes from spi_test to address 0x00000000 in flash $ mtd_debug read /dev/mtd0 0 2097152 spi_read Copied 2097152 bytes from address 0x00000000 in flash to spi_read $ sha256sum spi* a2cab5130668ecf92f4da32cbc2ab7be5e6db03ff36972775822f56e324d5122 spi_read a2cab5130668ecf92f4da32cbc2ab7be5e6db03ff36972775822f56e324d5122 spi_test $ mtd_debug erase /dev/mtd0 0 2097152 Erased 2097152 bytes from address 0x00000000 in flash $ mtd_debug read /dev/mtd0 0 2097152 spi_read Copied 2097152 bytes from address 0x00000000 in flash to spi_read $ sha256sum spi* 4bda3a28f4ffe603c0ec1258c0034d65a1a0d35ab7bd523a834608adabf03cc5 spi_read a2cab5130668ecf92f4da32cbc2ab7be5e6db03ff36972775822f56e324d5122 spi_test $ mtd_debug info /dev/mtd0 mtd.type = MTD_NORFLASH mtd.flags = MTD_CAP_NORFLASH mtd.size = 134217728 (128M) mtd.erasesize = 65536 (64K) mtd.writesize = 1 mtd.oobsize = 0 regions = 0 --- drivers/mtd/spi-nor/winbond.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/mtd/spi-nor/winbond.c b/drivers/mtd/spi-nor/winbond.c index 781ca0abfcdca2dc883e33bfa5c164623cf0905d..338e44db506a819b15e21f312c06ec13e6d37d28 100644 --- a/drivers/mtd/spi-nor/winbond.c +++ b/drivers/mtd/spi-nor/winbond.c @@ -359,6 +359,10 @@ static const struct flash_info winbond_nor_parts[] = { /* W25H512NWxxAM */ .id = SNOR_ID(0xef, 0xa0, 0x20), .flags = SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB | SPI_NOR_TB_SR_BIT6 | SPI_NOR_4BIT_BP, + }, { + /* W25H01NWxxAM */ + .id = SNOR_ID(0xef, 0xa0, 0x21), + .flags = SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB | SPI_NOR_TB_SR_BIT6 | SPI_NOR_4BIT_BP, }, };
These chips must be described as none of the block protection information are discoverable. This chip supports 4 bits plus the top/bottom addressing capability to identify the protected blocks.
Cc: stable@vger.kernel.org Signed-off-by: Miquel Raynal miquel.raynal@bootlin.com --- $ cat /sys/bus/spi/devices/spi0.0/spi-nor/partname cat: can't open '/sys/bus/spi/devices/spi0.0/spi-nor/partname': No such file or directory $ cat /sys/bus/spi/devices/spi0.0/spi-nor/jedec_id efa022 $ 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 0000ffff40eb0c200f5210d800003652b50082ea14e2e96376337a757a75 f7a2d55c199148ffe970f8a1ffffffffffffffffffffffffffffffffff0a f0ff21ffdcff $ sha256sum /sys/bus/spi/devices/spi0.0/spi-nor/sfdp 679145368f2188ac975ec3f4c9b691e7e250147c13b6f18a28a9192700925d95 /sys/bus/spi/devices/spi0.0/spi-nor/sfdp $ cat /sys/kernel/debug/spi-nor/spi0.0/params name (null) id ef a0 22 00 00 00 size 256 MiB write size 1 page size 256 address nbytes 4 flags HAS_SR_TB | 4B_OPCODES | HAS_4BAIT | HAS_LOCK | HAS_16BIT_SR | NO_READ_CR | HAS_SR_TB_BIT6 | HAS_4BIT_BP | SOFT_RESET | NO_WP
opcodes read 0xec dummy cycles 6 erase 0xdc program 0x34 8D extension none
protocols read 1S-4S-4S write 1S-1S-4S register 1S-1S-1S
erase commands 21 (4.00 KiB) [1] dc (64.0 KiB) [3] c7 (256 MiB)
sector map region (in hex) | erase mask | overlaid ------------------+------------+--------- 00000000-0fffffff | [ 3] | no $ cat /sys/kernel/debug/spi-nor/spi0.0/capabilities Supported read modes by the flash 1S-1S-1S opcode 0x13 mode cycles 0 dummy cycles 0 1S-1S-2S opcode 0x3c mode cycles 0 dummy cycles 8 1S-2S-2S opcode 0xbc mode cycles 2 dummy cycles 2 1S-1S-4S opcode 0x6c mode cycles 0 dummy cycles 8 1S-4S-4S opcode 0xec mode cycles 2 dummy cycles 4 4S-4S-4S opcode 0xec mode cycles 2 dummy cycles 0
Supported page program modes by the flash 1S-1S-1S opcode 0x12 1S-1S-4S opcode 0x34 $ dd if=/dev/urandom of=./spi_test bs=1M count=2 2+0 records in 2+0 records out $ mtd_debug erase /dev/mtd0 0 2097152 Erased 2097152 bytes from address 0x00000000 in flash $ mtd_debug read /dev/mtd0 0 2097152 spi_read Copied 2097152 bytes from address 0x00000000 in flash to spi_read $ hexdump spi_read 0000000 ffff ffff ffff ffff ffff ffff ffff ffff * 0200000 $ sha256sum spi_read 4bda3a28f4ffe603c0ec1258c0034d65a1a0d35ab7bd523a834608adabf03cc5 spi_read $ mtd_debug write /dev/mtd0 0 2097152 spi_test Copied 2097152 bytes from spi_test to address 0x00000000 in flash $ mtd_debug read /dev/mtd0 0 2097152 spi_read Copied 2097152 bytes from address 0x00000000 in flash to spi_read $ sha256sum spi* 0f59f02ed36e0c9a0c075787e27175d3428ac008be71c2322dcaf9000ef1e324 spi_read 0f59f02ed36e0c9a0c075787e27175d3428ac008be71c2322dcaf9000ef1e324 spi_test $ mtd_debug erase /dev/mtd0 0 2097152 mtd_debug read /dev/mtd0 0 2097152 spi_read Erased 2097152 bytes from address 0x00000000 in flash $ mtd_debug read /dev/mtd0 0 2097152 spi_read sha256sum spi* Copied 2097152 bytes from address 0x00000000 in flash to spi_read $ sha256sum spi* 4bda3a28f4ffe603c0ec1258c0034d65a1a0d35ab7bd523a834608adabf03cc5 spi_read 0f59f02ed36e0c9a0c075787e27175d3428ac008be71c2322dcaf9000ef1e324 spi_test $ mtd_debug info /dev/mtd0
mtd.type = MTD_NORFLASH mtd.flags = MTD_CAP_NORFLASH mtd.size = 268435456 (256M) mtd.erasesize = 65536 (64K) mtd.writesize = 1 mtd.oobsize = 0 regions = 0 --- drivers/mtd/spi-nor/winbond.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/mtd/spi-nor/winbond.c b/drivers/mtd/spi-nor/winbond.c index 338e44db506a819b15e21f312c06ec13e6d37d28..fb855fe44733db5664c200520d19a6be33edc323 100644 --- a/drivers/mtd/spi-nor/winbond.c +++ b/drivers/mtd/spi-nor/winbond.c @@ -363,6 +363,10 @@ static const struct flash_info winbond_nor_parts[] = { /* W25H01NWxxAM */ .id = SNOR_ID(0xef, 0xa0, 0x21), .flags = SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB | SPI_NOR_TB_SR_BIT6 | SPI_NOR_4BIT_BP, + }, { + /* W25H02NWxxAM */ + .id = SNOR_ID(0xef, 0xa0, 0x22), + .flags = SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB | SPI_NOR_TB_SR_BIT6 | SPI_NOR_4BIT_BP, }, };
Hello,
On 05/11/2025 at 18:26:59 +01, Miquel Raynal miquel.raynal@bootlin.com wrote:
Here is a series adding support for 6 Winbond SPI NOR chips. Describing these chips is needed otherwise the block protection feature is not available. Everything else looks fine otherwise.
[...]
Sorry for messing up a bit the cover letter, I didn't pay enough attention my first line got taken by b4 as Subject and forgot to put a real title.
Subject should have been: "mtd: spi-nor: winbond: Support for chips with block protection capabilities"
This will be fixed in case we need a v2.
Cheers, Miquèl
On Wed Nov 5, 2025 at 6:26 PM CET, Miquel Raynal wrote:
Here is a series adding support for 6 Winbond SPI NOR chips. Describing these chips is needed otherwise the block protection feature is not available. Everything else looks fine otherwise.
In practice I am only adding 6 very similar IDs but I split the commits because the amount of meta data to show proof that all the chips have been tested and work is pretty big.
As the commits simply add an ID, I am Cc'ing stable with the hope to get these backported to LTS kernels as allowed by the stable rules (see link below, but I hope I am doing this right).
Link: https://elixir.bootlin.com/linux/v6.17.7/source/Documentation/process/stable...
Thanks, Miquèl
Miquel Raynal (6): mtd: spi-nor: winbond: Add support for W25Q01NWxxIQ chips mtd: spi-nor: winbond: Add support for W25Q01NWxxIM chips mtd: spi-nor: winbond: Add support for W25Q02NWxxIM chips mtd: spi-nor: winbond: Add support for W25H512NWxxAM chips mtd: spi-nor: winbond: Add support for W25H01NWxxAM chips mtd: spi-nor: winbond: Add support for W25H02NWxxAM chips
Nice, for the whole series:
Reviewed-by: Michael Walle mwalle@kernel.org
-michael
On Wed, Nov 05 2025, Miquel Raynal wrote:
Here is a series adding support for 6 Winbond SPI NOR chips. Describing these chips is needed otherwise the block protection feature is not available. Everything else looks fine otherwise.
In practice I am only adding 6 very similar IDs but I split the commits because the amount of meta data to show proof that all the chips have been tested and work is pretty big.
As the commits simply add an ID, I am Cc'ing stable with the hope to get these backported to LTS kernels as allowed by the stable rules (see link below, but I hope I am doing this right).
Link: https://elixir.bootlin.com/linux/v6.17.7/source/Documentation/process/stable...
Thanks, Miquèl
Miquel Raynal (6): mtd: spi-nor: winbond: Add support for W25Q01NWxxIQ chips mtd: spi-nor: winbond: Add support for W25Q01NWxxIM chips mtd: spi-nor: winbond: Add support for W25Q02NWxxIM chips mtd: spi-nor: winbond: Add support for W25H512NWxxAM chips mtd: spi-nor: winbond: Add support for W25H01NWxxAM chips mtd: spi-nor: winbond: Add support for W25H02NWxxAM chips
drivers/mtd/spi-nor/winbond.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+)
base-commit: 479ba7fc704936b74a91ee352fe113d6391d562f change-id: 20251105-winbond-v6-18-rc1-spi-nor-7f78cb2785d6
Best regards,
Applied to spi-nor/next. Thanks!
linux-stable-mirror@lists.linaro.org
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Michael Walle -
Miquel Raynal -
Pratyush Yadav