From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Tianling Shen <cnsztl@gmail.com>
Date: Mon Aug 05 16:14:33 2024 +0800
Subject: [PATCH] arm64: dts: rockchip: lower mmc speed for Radxa Rock 5A

The previously stated speed of sdr-104 in is too high for the hardware
to reliably communicate with some fast SD cards.
Rockchip boards have a common bug when operating uhs speed, which will
hang the system during a soft reboot.

To be on the safe side, lower the speed to workaround.

Signed-off-by: Tianling Shen <cnsztl@gmail.com>
---

--- a/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts
@@ -440,7 +440,7 @@
 	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";
