[v4,18/25] mtd: spi-nor: winbond: Add support for W25Q32RV-M

There is an ID collision with the chip of same density from the JV
family. Both chips are very similar in practice, it is mostly a matter
of electrical differences (mostly power consumption being lower).

As a significant difference, RV chips identify themselves as supporting
the new SFDP (rev F) field which forces an alternate write SR2
opcode (0x31).

Reviewed-by: Takahiro Kuwano <takahiro.kuwano@infineon.com>
Reviewed-by: Michael Walle <mwalle@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
---
+ cat /sys/bus/spi/devices/spi0.0/spi-nor/jedec_id
ef7016
+ cat /sys/bus/spi/devices/spi0.0/spi-nor/manufacturer
winbond
+ xxd -p /sys/bus/spi/devices/spi0.0/spi-nor/sfdp
534644500a0100ff00080117800000ffffffffffffffffffffffffffffff
ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
ffffffffffffffffe520f9ffffffff0144eb086b083b42bbfeffffffffff
0000ffff44eb0c200f5210d800001432010183e314c2e96376337a757a75
f7a2d55c39f66dffe930f8800000000000002c0000000000f6f4ffff0f00
0000060d44bd27ed080d
+ sha256sum /sys/bus/spi/devices/spi0.0/spi-nor/sfdp
2c0c54d6e360dae30b72615eac5f0faff59463aeb2237d46d08d6cfd77d6c9f6  /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	0x03
  mode cycles	0
  dummy cycles	0
 1S-1S-2S
  opcode	0x3b
  mode cycles	0
  dummy cycles	8
 1S-2S-2S
  opcode	0xbb
  mode cycles	2
  dummy cycles	2
 1S-1S-4S
  opcode	0x6b
  mode cycles	0
  dummy cycles	8
 1S-4S-4S
  opcode	0xeb
  mode cycles	2
  dummy cycles	4
 4S-4S-4S
  opcode	0xeb
  mode cycles	2
  dummy cycles	4

Supported page program modes by the flash
 1S-1S-1S
  opcode	0x02
 1S-1S-4S
  opcode	0x32
+ cat /sys/kernel/debug/spi-nor/spi0.0/params
name		(null)
id		ef 70 16 00 00 00
size		4.00 MiB
write size	1
page size	256
address nbytes	3
flags		HAS_SR_TB | HAS_LOCK | SOFT_RESET | NO_WP | HAS_SR2_CMP_BIT6

opcodes
 read		0xeb
  dummy cycles	6
 erase		0xd8
 program	0x32
 8D extension	repeat

protocols
 read		1S-4S-4S
 write		1S-1S-4S
 register	1S-1S-1S

erase commands
 20 (4.00 KiB) [1]
 52 (32.0 KiB) [2]
 d8 (64.0 KiB) [3]
 c7 (4.00 MiB)

sector map
 region (in hex)   | erase mask | overlaid
 ------------------+------------+---------
 00000000-003fffff |     [   3] | no

locked sectors
 region (in hex)   | status   | #sectors
 ------------------+----------+---------
 00000000-003fffff | unlocked | 64
+ dd 'if=/dev/urandom' 'of=./spi_test' 'bs=1M' 'count=2'
[   15.820716] random: crng init done
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_read spi_test
c73e2828631d8f745c118e706e4ea7179328e6e03e49cb2d30784eb73ff6167f  spi_read
c73e2828631d8f745c118e706e4ea7179328e6e03e49cb2d30784eb73ff6167f  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_read spi_test
4bda3a28f4ffe603c0ec1258c0034d65a1a0d35ab7bd523a834608adabf03cc5  spi_read
c73e2828631d8f745c118e706e4ea7179328e6e03e49cb2d30784eb73ff6167f  spi_test
+ mtd_debug info /dev/mtd0
mtd.type = MTD_NORFLASH
mtd.flags = MTD_CAP_NORFLASH
mtd.size = 4194304 (4M)
mtd.erasesize = 65536 (64K)
mtd.writesize = 1
mtd.oobsize = 0
regions = 0

+ alias 'show_sectors=grep -A4 "locked sectors" /sys/kernel/debug/spi-nor/spi0.0/params'
+ flash_lock -u /dev/mtd0
+ flash_lock -i /dev/mtd0
Device: /dev/mtd0
Start: 0
Len: 0x400000
Lock status: unlocked
Return code: 0
+ mtd_debug erase /dev/mtd0 0 2097152
Erased 2097152 bytes from address 0x00000000 in flash
+ 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_read spi_test
c73e2828631d8f745c118e706e4ea7179328e6e03e49cb2d30784eb73ff6167f  spi_read
c73e2828631d8f745c118e706e4ea7179328e6e03e49cb2d30784eb73ff6167f  spi_test
+ grep -A4 'locked sectors' /sys/kernel/debug/spi-nor/spi0.0/params
locked sectors
 region (in hex)   | status   | #sectors
 ------------------+----------+---------
 00000000-003fffff | unlocked | 64
+ flash_lock -l /dev/mtd0
+ flash_lock -i /dev/mtd0
Device: /dev/mtd0
Start: 0
Len: 0x400000
Lock status: locked
Return code: 1
+ 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_read spi_test
c73e2828631d8f745c118e706e4ea7179328e6e03e49cb2d30784eb73ff6167f  spi_read
c73e2828631d8f745c118e706e4ea7179328e6e03e49cb2d30784eb73ff6167f  spi_test
+ dd 'if=/dev/urandom' 'of=./spi_test2' 'bs=1M' 'count=2'
2+0 records in
2+0 records out
+ mtd_debug write /dev/mtd0 0 2097152 spi_test2
Copied 2097152 bytes from spi_test2 to address 0x00000000 in flash
+ mtd_debug read /dev/mtd0 0 2097152 spi_read2
Copied 2097152 bytes from address 0x00000000 in flash to spi_read2
+ sha256sum spi_read spi_read2 spi_test spi_test2
c73e2828631d8f745c118e706e4ea7179328e6e03e49cb2d30784eb73ff6167f  spi_read
c73e2828631d8f745c118e706e4ea7179328e6e03e49cb2d30784eb73ff6167f  spi_read2
c73e2828631d8f745c118e706e4ea7179328e6e03e49cb2d30784eb73ff6167f  spi_test
d26d11f7de825c1f2397e52307997c9befb07b93e6cd520d15a87d06abef2529  spi_test2
+ grep -A4 'locked sectors' /sys/kernel/debug/spi-nor/spi0.0/params
locked sectors
 region (in hex)   | status   | #sectors
 ------------------+----------+---------
 00000000-003fffff |   locked | 64
+ flash_lock -u /dev/mtd0
+ cat /sys/class/mtd/mtd0/size
+ size=4194304
+ cat /sys/class/mtd/mtd0/erasesize
+ bs=65536
+ grep unlocked /sys/kernel/debug/spi-nor/spi0.0/params
+ sed -e 's/.*unlocked | //'
+ nsectors=64
+ ss=65536
+ bps=1
+ flash_lock -u /dev/mtd0
+ flash_lock -l /dev/mtd0 4063232 2
+ grep -A4 'locked sectors' /sys/kernel/debug/spi-nor/spi0.0/params
locked sectors
 region (in hex)   | status   | #sectors
 ------------------+----------+---------
 00000000-003dffff | unlocked | 62
 003e0000-003fffff |   locked | 2
+ flash_lock -u /dev/mtd0 4063232 1
+ grep -A4 'locked sectors' /sys/kernel/debug/spi-nor/spi0.0/params
locked sectors
 region (in hex)   | status   | #sectors
 ------------------+----------+---------
 00000000-003effff | unlocked | 63
 003f0000-003fffff |   locked | 1
+ flash_lock -u /dev/mtd0
+ flash_lock -l /dev/mtd0 0 2
+ grep -A4 'locked sectors' /sys/kernel/debug/spi-nor/spi0.0/params
locked sectors
 region (in hex)   | status   | #sectors
 ------------------+----------+---------
 00000000-0001ffff |   locked | 2
 00020000-003fffff | unlocked | 62
+ flash_lock -u /dev/mtd0 65536 1
+ grep -A4 'locked sectors' /sys/kernel/debug/spi-nor/spi0.0/params
locked sectors
 region (in hex)   | status   | #sectors
 ------------------+----------+---------
 00000000-0000ffff |   locked | 1
 00010000-003fffff | unlocked | 63
+ all_but_one=63
+ flash_lock -u /dev/mtd0
+ flash_lock -l /dev/mtd0 65536 63
+ grep -A4 'locked sectors' /sys/kernel/debug/spi-nor/spi0.0/params
locked sectors
 region (in hex)   | status   | #sectors
 ------------------+----------+---------
 00000000-0000ffff | unlocked | 1
 00010000-003fffff |   locked | 63
+ flash_lock -u /dev/mtd0 65536 1
+ grep -A4 'locked sectors' /sys/kernel/debug/spi-nor/spi0.0/params
locked sectors
 region (in hex)   | status   | #sectors
 ------------------+----------+---------
 00000000-0001ffff | unlocked | 2
 00020000-003fffff |   locked | 62
+ flash_lock -u /dev/mtd0
+ flash_lock -l /dev/mtd0 0 63
+ grep -A4 'locked sectors' /sys/kernel/debug/spi-nor/spi0.0/params
locked sectors
 region (in hex)   | status   | #sectors
 ------------------+----------+---------
 00000000-003effff |   locked | 63
 003f0000-003fffff | unlocked | 1
+ flash_lock -u /dev/mtd0 4063232 1
+ grep -A4 'locked sectors' /sys/kernel/debug/spi-nor/spi0.0/params
locked sectors
 region (in hex)   | status   | #sectors
 ------------------+----------+---------
 00000000-003dffff |   locked | 62
 003e0000-003fffff | unlocked | 2
---
 drivers/mtd/spi-nor/winbond.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Message ID	20260902-winbond-v7-1-spi-nor-rv-addition-v4-18-779d35303dff@bootlin.com
State	New
Headers	show Return-Path: <linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org> From: Miquel Raynal <miquel.raynal@bootlin.com> Date: Wed, 02 Sep 2026 18:59:32 +0200 Subject: [PATCH v4 18/25] mtd: spi-nor: winbond: Add support for W25Q32RV-M MIME-Version: 1.0 Message-Id: <20260902-winbond-v7-1-spi-nor-rv-addition-v4-18-779d35303dff@bootlin.com> References: <20260902-winbond-v7-1-spi-nor-rv-addition-v4-0-779d35303dff@bootlin.com> In-Reply-To: <20260902-winbond-v7-1-spi-nor-rv-addition-v4-0-779d35303dff@bootlin.com> To: Pratyush Yadav <pratyush@kernel.org>, Michael Walle <mwalle@kernel.org>, Takahiro Kuwano <takahiro.kuwano@infineon.com>, Richard Weinberger <richard@nod.at>, Vignesh Raghavendra <vigneshr@ti.com>, Nicolas Ferre <nicolas.ferre@microchip.com>, Alexandre Belloni <alexandre.belloni@bootlin.com>, Claudiu Beznea <claudiu.beznea@tuxon.dev>, Jonathan Corbet <corbet@lwn.net>, Shuah Khan <skhan@linuxfoundation.org> Cc: Steam Lin <STLin2@winbond.com>, Hsin-Yi Wang <hsinyi@chromium.org>, Thomas Petazzoni <thomas.petazzoni@bootlin.com>, linux-mtd@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, Miquel Raynal <miquel.raynal@bootlin.com> preview: There is an ID collision with the chip of same density from the JV family. Both chips are very similar in practice, it is mostly a matter of electrical differences (mostly power consumption being lowe [...] Content analysis details: (-0.2 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record -0.0 SPF_HELO_PASS SPF: HELO matches SPF record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.0 DMARC_PASS DMARC pass policy Precedence: list Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" <linux-mtd-bounces@lists.infradead.org> Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org
Series	mtd: spi-nor: QE handling cleanup + fixup reworks + Winbond RV chips addition \| expand [v4,00/25] mtd: spi-nor: QE handling cleanup + fixup reworks + Winbond RV chips addition [v4,01/25] mtd: spi-nor: Rename BFPT_DWORD15_QER_SR2_BIT1_BUGGY [v4,02/25] mtd: spi-nor: Create a structure containing the flash opcodes [v4,03/25] mtd: spi-nor: Refactor Read Status/Write Status support [v4,04/25] mtd: spi-nor: Add support for the new JESD216 rev F QER field [v4,05/25] mtd: spi-nor: Create the concept of fixup table with match function [v4,06/25] mtd: spi-nor: Move the fixup flags into the fixup list [v4,07/25] mtd: spi-nor: Create an indirection on the part name [v4,08/25] mtd: spi-nor: Move the SFDP header structure to a C header [v4,09/25] mtd: spi-nor: winbond: Prepare introduction of W25QxxRV-Q/N parts [v4,10/25] mtd: spi-nor: winbond: Add support for W25Q32RV-Q/N [v4,11/25] mtd: spi-nor: winbond: Add support for W25Q64RV-Q/N [v4,12/25] mtd: spi-nor: winbond: Add support for W25Q12RV-Q/N [v4,13/25] mtd: spi-nor: winbond: Add support for W25Q25RV-Q/N [v4,14/25] mtd: spi-nor: winbond: Add support for W25Q51RV-Q/N [v4,15/25] mtd: spi-nor: winbond: Add support for W25Q01RV-Q/N [v4,16/25] mtd: spi-nor: winbond: Add support for W25Q02RV-Q/N [v4,17/25] mtd: spi-nor: winbond: Prepare introduction of W25QxxRV-M parts [v4,18/25] mtd: spi-nor: winbond: Add support for W25Q32RV-M [v4,19/25] mtd: spi-nor: winbond: Add support for W25Q64RV-M [v4,20/25] mtd: spi-nor: winbond: Add support for W25Q12RV-M [v4,21/25] mtd: spi-nor: winbond: Add support for W25Q25RV-M [v4,22/25] mtd: spi-nor: winbond: Add support for W25Q51RV-M [v4,23/25] mtd: spi-nor: winbond: Add support for W25Q01RV-M [v4,24/25] mtd: spi-nor: winbond: Add support for W25Q02RV-M [v4,25/25] mtd: spi-nor: debugfs: Expose SR opcodes and QE mask

[v4,18/25] mtd: spi-nor: winbond: Add support for W25Q32RV-M

Commit Message

Patch