linux-kernel - [PATCH V5] mtd: spi-nor: winbond: Add support for winbond chip

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Message-Id: <1644350330-8809-1-git-send-email-quic_c_sbhanu@quicinc.com>
Date:   Wed,  9 Feb 2022 01:28:50 +0530
From:   Shaik Sajida Bhanu <quic_c_sbhanu@...cinc.com>
To:     dianders@...omium.org, tudor.ambarus@...rochip.com,
        michael@...le.cc, p.yadav@...com, miquel.raynal@...tlin.com,
        richard@....at, vigneshr@...com, linux-mtd@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Cc:     quic_stummala@...cinc.com, quic_vbadigan@...cinc.com,
        quic_rampraka@...cinc.com, quic_pragalla@...cinc.com,
        quic_sartgarg@...cinc.com,
        Shaik Sajida Bhanu <quic_c_sbhanu@...cinc.com>
Subject: [PATCH V5] mtd: spi-nor: winbond: Add support for winbond chip

Add support for winbond W25Q512NW-IM chip.

Signed-off-by: Shaik Sajida Bhanu <quic_c_sbhanu@...cinc.com>
Reviewed-by: Doug Anderson <dianders@...omium.org>
---
Changes since V1:
	- Added space before name of the flash part as suggested by Doug.

Changes since V2:
	- Updated chip name as w25q512nwm as suggested by Doug.

Changes since V3:
	- Updated flash_info flags passing according to below patch.

Changes since V4:
	- Added OTP support for SPI card as suggested by Michael Walle.
	- Updated SFDP flags passing as suggested by Pratyush Yadav.
---
 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 675f32c..315b9f6 100644
--- a/drivers/mtd/spi-nor/winbond.c
+++ b/drivers/mtd/spi-nor/winbond.c
@@ -124,6 +124,10 @@ static const struct flash_info winbond_parts[] = {
 	{ "w25m512jv", INFO(0xef7119, 0, 64 * 1024, 1024)
 		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_QUAD_READ |
 			      SPI_NOR_DUAL_READ) },
+	{ "w25q512nwm", INFO(0xef8020, 0, 64 * 1024, 1024)
+		FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)
+		PARSE_SFDP
+		OTP_INFO(256, 3, 0x1000, 0x1000) },
 	{ "w25q512jvq", INFO(0xef4020, 0, 64 * 1024, 1024)
 		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
 			      SPI_NOR_QUAD_READ) },
-- 
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