[PATCH] mtd: spi-nor: ids: Add support for Puyasemi flash chips

[Anshul Dalal]

On Fri Jan 30, 2026 at 4:31 PM IST, Ssunk wrote:
> This patch adds JEDEC IDs for Puyasemi PY25F512HB, PY25F01GHB,
> PY25F512LC, and PY25F01GLC flash parts.
>
> site: https://www.puyasemi.com

A link to the datasheets and a reference to the "Table ID Definitions"
would be helpful in cross-checking the correctness of the IDs.

>
> Signed-off-by: Ssunk <ssunkkan at gmail.com>

The patch doesn't apply cleanly, please rebase on master or next (as
appropriate) for the next revision.

> ---
>  drivers/mtd/spi/Kconfig       |  6 ++++++
>  drivers/mtd/spi/spi-nor-ids.c | 11 +++++++++++
>  2 files changed, 17 insertions(+)
>
> diff --git a/drivers/mtd/spi/Kconfig b/drivers/mtd/spi/Kconfig
> index a9617c6c58..c223862a46 100644
> --- a/drivers/mtd/spi/Kconfig
> +++ b/drivers/mtd/spi/Kconfig
> @@ -217,6 +217,12 @@ config SPI_FLASH_XTX
>  	  Add support for various XTX (XTX Technology Limited)
>  	  SPI flash chips (XT25xxx).
>  
> +config SPI_FLASH_PUYASEMI
> +	bool "PUYASEMI SPI flash support"
> +	help
> +	  Add support for various PUYASEMI (Puya Semiconductor (Shanghai) Co., Ltd.)
> +	  SPI flash chips (py25xxx)
> +

Can't this be included as part of the existing CONFIG_SPI_FLASH_PUYA
which was added by the commit 5c73c05f20be ("mtd: spi-nor-ids: Add Puya
Semiconductor chips description")?

Nit: Would be nice to see new configs being added in alphabetical order
in the Kconfig, though the order is not strictly followed currently :(

>  endif
>  
>  config SPI_FLASH_USE_4K_SECTORS
> diff --git a/drivers/mtd/spi/spi-nor-ids.c b/drivers/mtd/spi/spi-nor-ids.c
> index 4b7b358eac..2e479ab8a1 100644
> --- a/drivers/mtd/spi/spi-nor-ids.c
> +++ b/drivers/mtd/spi/spi-nor-ids.c
> @@ -624,6 +624,17 @@ const struct flash_info spi_nor_ids[] = {
>  	       SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
>  	{ INFO("xt25w01g", 0x0b651B, 0, 64 * 1024, 2048,
>  	       SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
> +#endif
> +#ifdef CONFIG_SPI_FLASH_PUYASEMI
> +	/* Puya Semiconductor (Shanghai) Co., Ltd */
> +	{ INFO("py25f512hb", 0x85231a, 0, 64 * 1024, 1024,
> +	       SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
> +	{ INFO("py25f01ghb", 0x85231b, 0, 64 * 1024, 2048,
> +	       SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
> +	{ INFO("py25f512lc", 0x85631a, 0, 64 * 1024, 1024,
> +	       SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
> +	{ INFO("py25f01glc", 0x85631b, 0, 64 * 1024, 2048,
> +	       SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
>  #endif
>  	{ },
>  };