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authorChen-Yu Tsai <wens@csie.org>2016-04-26 23:37:26 +0800
committerUlf Hansson <ulf.hansson@linaro.org>2016-04-28 11:43:54 +0200
commit2963070a0f8184fe40be11927344e3fcc7e18e7c (patch)
tree136b31cd63412e12435f54f6c95d69c521a73827 /drivers/mmc
parent6e1c7d6103fe7031035cec321307c6356809adf4 (diff)
downloadlinux-2963070a0f8184fe40be11927344e3fcc7e18e7c.tar.bz2
mmc: sunxi: Disable eMMC HS-DDR (MMC_CAP_1_8V_DDR) for Allwinner A80
eMMC HS-DDR no longer works on the A80, despite it working when support for this developed. Disable it for now. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/host/sunxi-mmc.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c
index 8372a413848c..7fc8b7aa83f0 100644
--- a/drivers/mmc/host/sunxi-mmc.c
+++ b/drivers/mmc/host/sunxi-mmc.c
@@ -1129,6 +1129,11 @@ static int sunxi_mmc_probe(struct platform_device *pdev)
MMC_CAP_1_8V_DDR |
MMC_CAP_ERASE | MMC_CAP_SDIO_IRQ;
+ /* TODO MMC DDR is not working on A80 */
+ if (of_device_is_compatible(pdev->dev.of_node,
+ "allwinner,sun9i-a80-mmc"))
+ mmc->caps &= ~MMC_CAP_1_8V_DDR;
+
ret = mmc_of_parse(mmc);
if (ret)
goto error_free_dma;