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Message-ID: <21760ebf-99f8-4ea3-8841-e023e00ae574@linux.dev>
Date: Mon, 6 Oct 2025 18:38:27 -0400
From: Sean Anderson <sean.anderson@...ux.dev>
To: Tudor Ambarus <tudor.ambarus@...aro.org>,
Pratyush Yadav <pratyush@...nel.org>, Michael Walle <mwalle@...nel.org>,
linux-mtd@...ts.infradead.org
Cc: Richard Weinberger <richard@....at>, linux-kernel@...r.kernel.org,
Miquel Raynal <miquel.raynal@...tlin.com>,
Vignesh Raghavendra <vigneshr@...com>
Subject: Re: [PATCH] mtd: spi-nor: Enable locking for n25q00a
On 10/6/25 18:34, Sean Anderson wrote:
> The datasheet for n25q00a shows that the status register has the same
> layout as for n25q00, so use the same flags to enable locking support.
> These flags should have been added back in commit 150ccc181588 ("mtd:
> spi-nor: Enable locking for n25q128a11"), but they were removed by the
Sorry, this should be commit f80ff13135cb ("mtd: spi-nor: micron-st: Enable locking for n25q00")
https://lore.kernel.org/all/20200421063313.32655-1-js07.lee@samsung.com/
> maintainer...
>
> Signed-off-by: Sean Anderson <sean.anderson@...ux.dev>
> ---
> Tested with a mt25qu01gbbb, which shares the same flash ID.
>
> 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 187239ccd549..17c7d6322508 100644
> --- a/drivers/mtd/spi-nor/micron-st.c
> +++ b/drivers/mtd/spi-nor/micron-st.c
> @@ -486,6 +486,8 @@ static const struct flash_info st_nor_parts[] = {
> .id = SNOR_ID(0x20, 0xbb, 0x21),
> .name = "n25q00a",
> .size = SZ_128M,
> + .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_QUAD_READ,
> .mfr_flags = USE_FSR,
> .fixups = &n25q00_fixups,
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