linux-kernel - [PATCH v2] mtd: micron-st: enable lock/unlock for mt25qu512a

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Date:   Wed,  5 Jul 2023 17:49:42 +0200
From:   Mamta Shukla <mamta.shukla@...ca-geosystems.com>
To:     tudor.ambarus@...aro.org, pratyush@...nel.org, michael@...le.cc,
        miquel.raynal@...tlin.com, richard@....at, vigneshr@...com,
        linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     bsp-development.geo@...ca-geosystems.com,
        Mamta Shukla <mamta.shukla@...ca-geosystems.com>
Subject: [PATCH v2] mtd: micron-st: enable lock/unlock for mt25qu512a

mt25qu512a[1] supports locking/unlocking through BP bits in SR.

Tested using mtd-utils- flash_lock/flash_unlock for MT25QU512ABB8E12.

Link: https://media-www.micron.com/-/media/client/global/documents/products/data-sheet/nor-flash/serial-nor/mt25q/die-rev-b/mt25q_qlkt_u_512_abb_0.pdf?rev=b259aadc3bea49ea8210a41c9ad58211
Signed-off-by: Mamta Shukla <mamta.shukla@...ca-geosystems.com>
---
 Changes in v2:
 - add Link tag
 - fix chip part number mt25ql512a->mt25qu512a

 drivers/mtd/spi-nor/micron-st.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/mtd/spi-nor/micron-st.c b/drivers/mtd/spi-nor/micron-st.c
index 4b919756a205..08e94340ebaa 100644
--- a/drivers/mtd/spi-nor/micron-st.c
+++ b/drivers/mtd/spi-nor/micron-st.c
@@ -229,6 +229,8 @@ static const struct flash_info st_nor_parts[] = {
 		MFR_FLAGS(USE_FSR)
 	},
 	{ "mt25qu512a",  INFO6(0x20bb20, 0x104400, 64 * 1024, 1024)
+		FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB | SPI_NOR_4BIT_BP |
+		      SPI_NOR_BP3_SR_BIT6)
 		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
 		FIXUP_FLAGS(SPI_NOR_4B_OPCODES)
 		MFR_FLAGS(USE_FSR)
-- 
2.25.1