From: Steffen Trumtrar <str@xxxxxxxxxxxxxx>
The patch
0a47bce1b03fd236384e904dca005c0870ce8684
mci: imx-esdhc: Use common DMA helpers
converted the imx-esdhc driver to use the DMA helpers introduced with
60b608b2714472aa22862a20d04f267cbbac0863
mci: sdhci: Add DMA transfer helpers
The common DMA helpers however break support for BE-variants (e.g.
Layerscape) as the BLKATTR register seems to be a 32-bit register which
internally switches bytes when used with two 16-bit write accesses.
As the alignment should also work for LE-SDHCI-variants convert the two
16-bit accesses to one 32-bit access.
Signed-off-by: Steffen Trumtrar <str@xxxxxxxxxxxxxx>
---
drivers/mci/sdhci.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/mci/sdhci.c b/drivers/mci/sdhci.c
index aca4a5a6f911..8b5520d6827a 100644
--- a/drivers/mci/sdhci.c
+++ b/drivers/mci/sdhci.c
@@ -129,9 +129,8 @@ void sdhci_setup_data_pio(struct sdhci *sdhci, struct mci_data *data)
if (!data)
return;
- sdhci_write16(sdhci, SDHCI_BLOCK_SIZE, sdhci->sdma_boundary |
- SDHCI_TRANSFER_BLOCK_SIZE(data->blocksize));
- sdhci_write16(sdhci, SDHCI_BLOCK_COUNT, data->blocks);
+ sdhci_write32(sdhci, SDHCI_BLOCK_SIZE, sdhci->sdma_boundary |
+ SDHCI_TRANSFER_BLOCK_SIZE(data->blocksize) | data->blocks << 16);
}
void sdhci_setup_data_dma(struct sdhci *sdhci, struct mci_data *data,
--
2.30.2
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