[PATCH] firmware: scmi: Drop mmu_set_region_dcache_behaviour() misuse

Peng Fan (OSS) peng.fan at oss.nxp.com
Fri Nov 7 04:25:29 CET 2025


From: Peng Fan <peng.fan at nxp.com>


On Sat, 25 Oct 2025 23:35:09 +0200, Marek Vasut wrote:
> MMU region cache behavior configuration for SCMI/SMT mailboxes is
> platform specific. Even on ARM systems, the mailbox memory may not
> even be located in any cacheable MMU region and may instead reside
> in some SRAM. Remove this non-generic cache behavior configuration
> code from generic code path.
> 
> It is unlikely that any platform is affected by this change if it
> did configure its MMU regions correctly on start up. Platforms
> which might be affected are i.MX94/95 and STM32MP.
> 
> [...]

Applied to fsl-qoriq
ext, thanks!

[1/1] firmware: scmi: Drop mmu_set_region_dcache_behaviour() misuse
      commit: 3594affc210b890b322961c2e83eb48e4b0061ca

Best regards,
-- 
Peng Fan <peng.fan at nxp.com>


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