Re: [PATCH v3 1/2] mtd: spi-nor: Add support for MX25L12833F and MX25L12845G
"Michael Walle" <[email protected]>
| Newsgroups | org.infradead.lists.linux-mtd,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
On Fri Jun 5, 2026 at 10:48 AM CEST, Cheng Ming Lin wrote: > From: Cheng Ming Lin <[email protected]> > > Add support for Macronix MX25L12833F and MX25L12845G SPI NOR flashes. > These parts share the same JEDEC ID (0xc2, 0x20, 0x18) as the legacy > MX25L12805D. > > The newer flashes support SFDP and 1-4-4 Page Program in 3-byte address > mode, but this 4PP capability is not defined in their SFDP tables. > Conversely, the legacy MX25L12805D lacks SFDP support entirely and does > not support 4PP. > > To safely enable 4PP for the newer flashes without breaking the legacy > part, introduce a post_sfdp fixup. Since the legacy MX25L12805D does > not support SFDP, it falls back to static parameters and will never > execute the post_sfdp hook. The newer flashes will successfully parse > the SFDP, trigger the hook, and safely append the SNOR_HWCAPS_PP_1_4_4 > capability. > > Signed-off-by: Cheng Ming Lin <[email protected]> Nice! Reviewed-by: Michael Walle <[email protected]> ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/