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authorFabio Estevam <fabio.estevam@nxp.com>2017-05-17 21:55:25 +0300
committerShawn Guo <shawnguo@kernel.org>2017-05-21 11:41:52 +0300
commit60490d0a91ab97231d1cfea1f9327a03a596fa8f (patch)
tree4d1f77637c8349b3e094030063e738d66bb91192 /arch/arm/boot/dts/imx7s-warp.dts
parent23c787a99ff7b42f594722d60ea064534fe54a71 (diff)
downloadlinux-60490d0a91ab97231d1cfea1f9327a03a596fa8f.tar.xz
ARM: dts: imx7s-warp: Pass 'no-1-8-v' property to the eMMC
Currently the following eMMC error is seen: mmc1: mmc_select_hs200 failed, error -74 mmc1: new MMC card at address 0001 mmcblk1: mmc1:0001 V10008 7.05 GiB mmcblk1boot0: mmc1:0001 V10008 partition 1 4.00 MiB mmcblk1boot1: mmc1:0001 V10008 partition 2 4.00 MiB mmcblk1rpmb: mmc1:0001 V10008 partition 3 4.00 MiB On imx7s-warp the eMMC VCCQ is fixed at 3.15V, so pass the 'no-1-8-v' property to properly describe that 1.8V operation is not possible. With this change HS200 error is gone and another benefit is that the card can operate in DDR52 mode now: mmc1: new DDR MMC card at address 0001 mmcblk1: mmc1:0001 V10008 7.05 GiB mmcblk1boot0: mmc1:0001 V10008 partition 1 4.00 MiB mmcblk1boot1: mmc1:0001 V10008 partition 2 4.00 MiB mmcblk1rpmb: mmc1:0001 V10008 partition 3 4.00 MiB Suggested-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'arch/arm/boot/dts/imx7s-warp.dts')
-rw-r--r--arch/arm/boot/dts/imx7s-warp.dts1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/imx7s-warp.dts b/arch/arm/boot/dts/imx7s-warp.dts
index d5237fd0fa65..8dfed85471e1 100644
--- a/arch/arm/boot/dts/imx7s-warp.dts
+++ b/arch/arm/boot/dts/imx7s-warp.dts
@@ -295,6 +295,7 @@
assigned-clocks = <&clks IMX7D_USDHC3_ROOT_CLK>;
assigned-clock-rates = <400000000>;
bus-width = <8>;
+ no-1-8-v;
fsl,tuning-step = <2>;
non-removable;
status = "okay";