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| author | Fabio Estevam <fabio.estevam@nxp.com> | 2017-05-17 21:55:25 +0300 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2017-05-21 11:41:52 +0300 |
| commit | 60490d0a91ab97231d1cfea1f9327a03a596fa8f (patch) | |
| tree | 4d1f77637c8349b3e094030063e738d66bb91192 | |
| parent | 23c787a99ff7b42f594722d60ea064534fe54a71 (diff) | |
| download | linux-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>
| -rw-r--r-- | arch/arm/boot/dts/imx7s-warp.dts | 1 |
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"; |