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DHDAXCW-Rockchip-OpenWrt/target/linux/rockchip/patches-6.6/103-arm64-dts-rockchip-lower-mmc-speed.patch
2024-12-18 10:10:18 +08:00

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2.3 KiB
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From: David Bauer <mail@david-bauer.net>
Subject: arm64: dts: rockchip: disable UHS modes for NanoPi R4S
The NanoPi R4S leaves the SD card in 1.8V signalling when rebooting
while U-Boot requires the card to be in 3.3V mode.
Remove UHS support from the SD controller so the card remains in 3.3V
mode. This reduces transfer speeds but ensures a reboot whether from
userspace or following a kernel panic is always working.
Signed-off-by: David Bauer <mail@david-bauer.net>
--- a/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts
@@ -330,7 +330,6 @@
sd-uhs-sdr12;
sd-uhs-sdr25;
sd-uhs-sdr50;
- sd-uhs-sdr104;
vmmc-supply = <&vcc_sd>;
vqmmc-supply = <&vcc_sdio>;
status = "okay";
--- a/arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dts
@@ -119,6 +119,11 @@
status = "disabled";
};
+&sdmmc {
+ /delete-property/ sd-uhs-sdr104;
+ cap-sd-highspeed;
+};
+
&u2phy0_host {
phy-supply = <&vdd_5v>;
};
--- a/arch/arm64/boot/dts/rockchip/rk3588-armsom-sige7.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588-armsom-sige7.dts
@@ -341,7 +341,7 @@
max-frequency = <200000000>;
no-sdio;
no-mmc;
- sd-uhs-sdr104;
+ sd-uhs-sdr50;
vmmc-supply = <&vcc_3v3_s3>;
vqmmc-supply = <&vccio_sd_s0>;
status = "okay";
--- a/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dtsi
@@ -617,8 +617,7 @@
no-sd;
non-removable;
max-frequency = <200000000>;
- mmc-hs400-1_8v;
- mmc-hs400-enhanced-strobe;
+ mmc-hs200-1_8v;
status = "okay";
};
@@ -630,7 +629,7 @@
disable-wp;
no-mmc;
no-sdio;
- sd-uhs-sdr104;
+ sd-uhs-sdr50;
vmmc-supply = <&vcc3v3_sd_s0>;
vqmmc-supply = <&vccio_sd_s0>;
status = "okay";
--- a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
@@ -414,7 +414,7 @@
cap-mmc-highspeed;
cap-sd-highspeed;
disable-wp;
- sd-uhs-sdr104;
+ sd-uhs-sdr50;
vmmc-supply = <&vcc_3v3_s3>;
vqmmc-supply = <&vccio_sd_s0>;
status = "okay";
--- a/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts
@@ -399,7 +399,7 @@
max-frequency = <150000000>;
no-sdio;
no-mmc;
- sd-uhs-sdr104;
+ sd-uhs-sdr50;
vmmc-supply = <&vcc_3v3_s0>;
vqmmc-supply = <&vccio_sd_s0>;
status = "okay";