From: Takeshi Saito <takeshi.saito.xv@xxxxxxxxxxx>
[ Upstream commit d7aefb2887601cf1fc3f86f55d43b2c9aece5e8f ]
According to the latest datasheet, the internal DMAC buffer alignment
R-Car Gen3 SDHI HW should be 128-bytes. So, fix it.
Signed-off-by: Takeshi Saito <takeshi.saito.xv@xxxxxxxxxxx>
[shimoda: revise commit description, rebase]
Fixes: 2a68ea7896e3 ("mmc: renesas-sdhi: add support for R-Car Gen3 SDHI DMAC")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
Reviewed-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
Tested-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/1608114572-1892-2-git-send-email-yoshihiro.shimoda.uh@xxxxxxxxxxx
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/mmc/host/renesas_sdhi_internal_dmac.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/host/renesas_sdhi_internal_dmac.c b/drivers/mmc/host/renesas_sdhi_internal_dmac.c
index fe13e1ea22dcc..f3e76d6b3e3fe 100644
--- a/drivers/mmc/host/renesas_sdhi_internal_dmac.c
+++ b/drivers/mmc/host/renesas_sdhi_internal_dmac.c
@@ -186,8 +186,8 @@ renesas_sdhi_internal_dmac_start_dma(struct tmio_mmc_host *host,
mmc_get_dma_dir(data)))
goto force_pio;
- /* This DMAC cannot handle if buffer is not 8-bytes alignment */
- if (!IS_ALIGNED(sg_dma_address(sg), 8))
+ /* This DMAC cannot handle if buffer is not 128-bytes alignment */
+ if (!IS_ALIGNED(sg_dma_address(sg), 128))
goto force_pio_with_unmap;
if (data->flags & MMC_DATA_READ) {
--
2.27.0
