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From:   Potin Lai <potin.lai.pt@gmail.com>
To:     Tudor Ambarus <tudor.ambarus@microchip.com>,
        Pratyush Yadav <pratyush@kernel.org>,
        Michael Walle <michael@walle.cc>,
        Miquel Raynal <miquel.raynal@bootlin.com>,
        Richard Weinberger <richard@nod.at>,
        Vignesh Raghavendra <vigneshr@ti.com>
Cc:     linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org,
        Patrick Williams <patrick@stwcx.xyz>,
        Potin Lai <potin.lai@quantatw.com>,
        Potin Lai <potin.lai.pt@gmail.com>
Subject: [RESEND PATCH v4 1/1] mtd: spi-nor: winbond: Add support for w25q01jvq
Date:   Fri, 11 Nov 2022 14:05:30 +0800
Message-Id: <20221111060530.2201084-1-potin.lai.pt@gmail.com>
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From: Potin Lai <potin.lai@quantatw.com>

Add support for winbond w25q01jvq chip

Signed-off-by: Potin Lai <potin.lai@quantatw.com>
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Reviewed-by: Michael Walle <michael@walle.cc>
Signed-off-by: Joel Stanley <joel@jms.id.au>

---
LINK: [v3] https://lore.kernel.org/all/20220222085148.21594-1-potin.lai@quantatw.com/
LINK: [v2] https://lore.kernel.org/all/20220222064227.16724-1-potin.lai@quantatw.com/
LINK: [v1] https://lore.kernel.org/all/20211224104522.24615-1-potin.lai@quantatw.com/

Changes v3 --> v4:
- fix correct chip name "w25q01jvq"

root@bletchley:~# cat /sys/devices/platform/ahb/1e620000.spi/spi_master/spi0/spi0.0/spi-nor/jedec_id
ef4021
root@bletchley:~# cat /sys/devices/platform/ahb/1e620000.spi/spi_master/spi0/spi0.0/spi-nor/manufacturer
winbond
root@bletchley:~# cat /sys/devices/platform/ahb/1e620000.spi/spi_master/spi0/spi0.0/spi-nor/partname
w25q01jvq
root@bletchley:~# md5sum /sys/devices/platform/ahb/1e620000.spi/spi_master/spi0/spi0.0/spi-nor/sfdp
a7b9dbf76e99a33db99e557b6676588a /sys/devices/platform/ahb/1e620000.spi/spi_master/spi0/spi0.0/spi-nor/sfdp
root@bletchley:~# hexdump -C /sys/devices/platform/ahb/1e620000.spi/spi_master/spi0/spi0.0/spi-nor/sfdp
00000000  53 46 44 50 06 01 01 ff  00 06 01 10 80 00 00 ff  |SFDP............|
00000010  84 00 01 02 d0 00 00 ff  03 00 01 02 f0 00 00 ff  |................|
00000020  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff  |................|
*
00000080  e5 20 fb ff ff ff ff 3f  44 eb 08 6b 08 3b 42 bb  |. .....?D..k.;B.|
00000090  fe ff ff ff ff ff 00 00  ff ff 40 eb 0c 20 0f 52  |..........@.. .R|
000000a0  10 d8 00 00 36 02 a6 00  82 ea 14 e2 e9 63 76 33  |....6........cv3|
000000b0  7a 75 7a 75 f7 a2 d5 5c  19 f7 4d ff e9 70 f9 a5  |zuzu...\..M..p..|
000000c0  ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff  |................|
000000d0  ff 0a f0 ff 21 ff dc ff                           |....!...|
000000d8

Changes v2 --> v3:
- move spi-nor flash information to comment area

Changes v1 --> v2:
- rework patch to work with new flags
---
 drivers/mtd/spi-nor/winbond.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/mtd/spi-nor/winbond.c b/drivers/mtd/spi-nor/winbond.c
index ffaa24055259..e60ad92c0ace 100644
--- a/drivers/mtd/spi-nor/winbond.c
+++ b/drivers/mtd/spi-nor/winbond.c
@@ -139,6 +139,8 @@ static const struct flash_info winbond_nor_parts[] = {
 	{ "w25q512jvq", INFO(0xef4020, 0, 64 * 1024, 1024)
 		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
 			      SPI_NOR_QUAD_READ) },
+	{ "w25q01jvq", INFO(0xef4021, 0, 64 * 1024, 2048)
+		PARSE_SFDP },
 };
 
 /**
-- 
2.31.1