build/patch/kernel/archive/rk3399-4.4/roc-rk3399-pc-fix-disable-hs400.patch

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Diff

Some eMMC moduled that come with ROC-RK3399-PC don't cope well with HS400/HS400ES.
The modules that have issues are mentioned below DJNB4R and mine AJTD4R.
See:
https://lkml.org/lkml/2019/11/11/203
https://lkml.org/lkml/2019/11/15/444
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi
index f871f0c5..8cfd38f7 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi
@@ -1082,8 +1082,7 @@
&sdhci {
bus-width = <8>;
keep-power-in-suspend;
- mmc-hs400-1_8v;
- mmc-hs400-enhanced-strobe;
+ mmc-hs200-1_8v;
non-removable;
status = "okay";
supports-emmc;