Re: [PATCH v3 2/2] mtd: spi-nor: macronix: Restore fallback parameters for MX25L12805D

"Michael Walle" <[email protected]>
Newsgroups org.infradead.lists.linux-mtd,org.kernel.vger.linux-kernel,org.kernel.vger.stable
Message-ID <[email protected]>
On Fri Jun 5, 2026 at 10:48 AM CEST, Cheng Ming Lin wrote:
> From: Cheng Ming Lin <[email protected]>
>
> In a previous effort to drop flash_info fields and rely on SFDP, the
> static size and no_sfdp_flags were removed from the MX25L12805D entry
> (JEDEC ID 0xc22018).
>
> At that time, the legacy MX25L12805D was already EOL and unavailable
> for physical testing. Verification was inadvertently performed using
> the newer MX25L12833F, which shares the same JEDEC ID but supports
> SFDP. As a result, the probe succeeded during testing, leading to
> the mistaken removal of the fallback parameters.
>
> Since the actual MX25L12805D lacks SFDP support entirely, it strictly
> requires these static parameters.
>
> Restore .size = SZ_16M and .no_sfdp_flags = SECT_4K to this entry
> to fix the probe failure for the legacy part.
>
> Fixes: 947c86e481a0 ("mtd: spi-nor: macronix: Drop the redundant flash info fields")
> Cc: [email protected]
> Signed-off-by: Cheng Ming Lin <[email protected]>

Reviewed-by: Michael Walle <[email protected]>

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