From: Eliav Farber Date: Wed, 18 Feb 2026 14:35:23 +0000 (+0000) Subject: mtd: spi-nor: winbond: Fix locking support for w25q64jvm X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=5eb130177693c3470cafaf721af41c60dd891cc7;p=thirdparty%2Fkernel%2Flinux.git mtd: spi-nor: winbond: Fix locking support for w25q64jvm The Winbond w25q64jvm supports block protection through the Status Register (SR) and provides a Top/Bottom (TB) protection bit. Enable SPI_NOR_HAS_LOCK and SPI_NOR_HAS_TB for this device to properly describe its locking capabilities. The device uses Status Register bit 5 as the TB bit and supports only three Block Protect (BP) bits. Therefore, do not set SPI_NOR_TB_SR_BIT6 or SPI_NOR_4BIT_BP. Reference: https://www.winbond.com/hq/support/documentation/levelOne.jsp?__locale=en&DocNo=DA00-W25Q64JV.1 Signed-off-by: Eliav Farber Reviewed-by: Michael Walle Signed-off-by: Pratyush Yadav (Google) --- diff --git a/drivers/mtd/spi-nor/winbond.c b/drivers/mtd/spi-nor/winbond.c index 55f1209936d57..5a3e3ee96edb4 100644 --- a/drivers/mtd/spi-nor/winbond.c +++ b/drivers/mtd/spi-nor/winbond.c @@ -295,6 +295,7 @@ static const struct flash_info winbond_nor_parts[] = { .id = SNOR_ID(0xef, 0x70, 0x17), .name = "w25q64jvm", .size = SZ_8M, + .flags = SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB, .no_sfdp_flags = SECT_4K, }, { .id = SNOR_ID(0xef, 0x70, 0x18),