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mmc: sdhci: skip cache invalidation if DMA is not used
authorYuezhang.Mo@sony.com <Yuezhang.Mo@sony.com>
Thu, 14 Jan 2021 05:46:50 +0000 (05:46 +0000)
committerPeng Fan <peng.fan@nxp.com>
Fri, 19 Feb 2021 07:03:25 +0000 (15:03 +0800)
commit37e1362efc2ba9be5355b3c55f9f4f7a43f02de2
treef84f4b5d832773e369a815bb26b3c45fa277d5d7tree | snapshot
parent1019b19665ee719762f7613a36bf1b7ef9c3b578commit | diff
mmc: sdhci: skip cache invalidation if DMA is not used

If DMA(SDMA or ADMA) is not used, the cache invalidation
after reading is no need, should be skipped. Otherwise
U-Boot may hang at the cache invalidation.

Found this issue and tested this fix on DragonBoard 410c.

Fixes: commit 4155ad9aac94 ("mmc: sdhci: fix missing cache invalidation after reading by DMA")
Signed-off-by: Yuezhang.Mo <Yuezhang.Mo@sony.com>
Reviewed-by: Andy Wu <Andy.Wu@sony.com>
drivers/mmc/sdhci.c diff | blob | history
My U-Boot fork