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authorYuezhang.Mo@sony.com <Yuezhang.Mo@sony.com>2021-01-14 05:46:50 +0000
committerPeng Fan <peng.fan@nxp.com>2021-02-19 15:03:25 +0800
commit37e1362efc2ba9be5355b3c55f9f4f7a43f02de2 (patch)
treef84f4b5d832773e369a815bb26b3c45fa277d5d7 /drivers/mmc
parent1019b19665ee719762f7613a36bf1b7ef9c3b578 (diff)
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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>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/sdhci.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index 5f18d47..d9ab6a0 100644
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -177,8 +177,10 @@ static int sdhci_transfer_data(struct sdhci_host *host, struct mmc_data *data)
}
} while (!(stat & SDHCI_INT_DATA_END));
+#if (defined(CONFIG_MMC_SDHCI_SDMA) || CONFIG_IS_ENABLED(MMC_SDHCI_ADMA))
dma_unmap_single(host->start_addr, data->blocks * data->blocksize,
mmc_get_dma_dir(data));
+#endif
return 0;
}