Commit 8b5c2b45b8f0 disabled the internal pull-down for the strobe line
causing I/O errors in HS400 mode for various eMMC modules.
Enable the internal strobe pull-down for the ROCK 4C+ board. Also re-enable
HS400 mode, that was replaced with HS200 mode as a workaround for the
stability issues in:
2bd1d2dd808c ("arm64: dts: rockchip: Disable HS400 for eMMC on ROCK 4C+").
Fixes: 8b5c2b45b8f0 ("phy: rockchip: set pulldown for strobe line in dts")
Signed-off-by: Folker Schwesinger <dev@xxxxxxxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/rockchip/rk3399-rock-4c-plus.dts | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-4c-plus.dts b/arch/arm64/boot/dts/rockchip/rk3399-rock-4c-plus.dts
index 7baf9d1b22fd..972aea843afd 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-rock-4c-plus.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-4c-plus.dts
@@ -151,6 +151,7 @@ &cpu_b1 {
};
&emmc_phy {
+ rockchip,enable-strobe-pulldown;
status = "okay";
};
@@ -549,7 +550,8 @@ &saradc {
&sdhci {
max-frequency = <150000000>;
bus-width = <8>;
- mmc-hs200-1_8v;
+ mmc-hs400-1_8v;
+ mmc-hs400-enhanced-strobe;
non-removable;
status = "okay";
};
--
2.44.0
