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arm64: dts: rockchip: Add enable-strobe-pulldown to emmc phy on ROCK 4C+

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Commit 8b5c2b45b8 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:
2bd1d2dd80 ("arm64: dts: rockchip: Disable HS400 for eMMC on ROCK 4C+").

Fixes: 8b5c2b45b8 ("phy: rockchip: set pulldown for strobe line in dts")
Signed-off-by: Folker Schwesinger <dev@folker-schwesinger.de>
Reviewed-by: Dragan Simic <dsimic@manjaro.org>
Link: https://lore.kernel.org/r/20240327192641.14220-3-dev@folker-schwesinger.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This commit is contained in:
Folker Schwesinger 2024-03-27 20:26:38 +01:00 committed by Heiko Stuebner
parent f720dd9b8b
commit c1b1f340dd
1 changed files with 3 additions and 1 deletions
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4
arch/arm64/boot/dts/rockchip/rk3399-rock-4c-plus.dts
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@ -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";
};