Hans de Goede <hdegoede@xxxxxxxxxx> wrote:
> From: Arend Van Spriel <arend.vanspriel@xxxxxxxxxxxx>
>
> For SDIO the alignment requirement for transfers from device to host
> is configured in firmware. This configuration is limited to minimum
> of 4-byte alignment. However, this is not correct for platforms using
> 64-bit DMA when the minimum alignment should be 8 bytes. This issue
> appeared when the ALIGNMENT definition was set according the DMA
> configuration. The configuration in firmware was not using that macro
> defintion, but a hardcoded value of 4. Hence the driver reported
> alignment failures for data coming from the device and causing
> transfers to fail.
>
> Fixes: 6e84ab604bde ("brcmfmac: properly align buffers on certain platforms
> Reported-by: Hans de Goede <hdegoede@xxxxxxxxxx>
> Tested-by: Hans de Goede <hdegoede@xxxxxxxxxx>
> Reviewed-by: Hante Meuleman <hante.meuleman@xxxxxxxxxxxx>
> Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@xxxxxxxxxxxx>
> Reviewed-by: Franky Lin <franky.lin@xxxxxxxxxxxx>
> Signed-off-by: Arend van Spriel <arend.vanspriel@xxxxxxxxxxxx>
> Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Patch applied to wireless-drivers.git, thanks.
1dbf647f3175 brcmfmac: fix alignment configuration on host using 64-bit DMA
--
https://patchwork.kernel.org/patch/9750347/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
