mirror of
https://github.com/FEX-Emu/linux.git
synced 2025-01-10 19:43:29 +00:00
5552d7ad59
SDHCI controller in ls1043a and ls1046a generate 40-bit wide addresses when doing DMA. Make sure that the corresponding dma mask is correctly configured. Context: when enabling smmu on these chips the following problem is encountered: the smmu input address size is 48 bits so the dma mappings for sdhci end up 48-bit wide. However, on these chips sdhci only use 40-bits of that address size when doing dma. So you end up with a 48-bit address translation in smmu but the device generates transactions with clipped 40-bit addresses, thus smmu context faults are triggered. Setting up the correct dma mask fixes this situation. Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>