0040-arm64-dts-rockchip-Slow-down-EMMC-a-bit-to-keep-IO-s.patch

From 202b2143827b004b073f75021f5a3b6a3ce45b2a Mon Sep 17 00:00:00 2001
From: "Carsten Haitzler (Rasterman)" <raster@rasterman.com>
Date: Tue, 6 Feb 2024 10:12:54 +0000
Subject: [PATCH 40/77] arm64: dts: rockchip: Slow down EMMC a bit to keep IO
 stable

This drops to hs200 mode and 150Mhz as this is actually stable across
eMMC modules. There exist some that are incompatible at higher rates
with the rk3588 and to avoid your filesystem corrupting due to IO
errors, be more conservative and reduce the max. speed.

Signed-off-by: Carsten Haitzler <raster@rasterman.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
index 966bbc582d89b..31866f9dcf696 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
@@ -408,8 +408,8 @@ &sdhci {
 	no-sdio;
 	no-sd;
 	non-removable;
-	mmc-hs400-1_8v;
-	mmc-hs400-enhanced-strobe;
+	max-frequency = <150000000>;
+	mmc-hs200-1_8v;
 	status = "okay";
 };
 
-- 
2.47.0