linux-kernel - [PATCH V4] mtd: spi-nor: winbond: Add support for winbond chip

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Message-Id: <1642672491-30067-1-git-send-email-quic_c_sbhanu@quicinc.com>
Date:   Thu, 20 Jan 2022 15:24:51 +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:     stummala@...eaurora.org, vbadigan@...eaurora.org,
        quic_rampraka@...cinc.com, quic_pragalla@...cinc.com,
        sartgarg@...eaurora.org,
        Shaik Sajida Bhanu <quic_c_sbhanu@...cinc.com>
Subject: [PATCH V4] 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
	 https://lore.kernel.org/all/20211207140254.87681-7-tudor.ambarus@microchip.com/
	 As suggested by Tudor Ambarus.
---
 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..c4be225 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)
+		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
+			      SPI_NOR_QUAD_READ) },
 	{ "w25q512jvq", INFO(0xef4020, 0, 64 * 1024, 1024)
 		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
 			      SPI_NOR_QUAD_READ) },
-- 
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