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arm64: dts: rockchip: slow down emmc freq for rock 5 itx

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The current max-frequency 200000000 of emmc is not stable. When doing
heavy write there will be I/O Error. After setting max-frequency to
150000000 the emmc is stable under write.

Also remove property mmc-hs200-1_8v because we are already running at
HS400 mode.

Tested with fio command:
fio -filename=./test_randread -direct=1 -iodepth 1 -thread \
-rw=randwrite -ioengine=psync -bs=16k -size=1G -numjobs=10 \
-runtime=600 -group_reporting -name=mytest

Signed-off-by: Jianfeng Liu <liujianfeng1994@gmail.com>
Link: https://lore.kernel.org/r/20250228143341.70244-1-liujianfeng1994@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This commit is contained in:
Jianfeng Liu 2025-02-28 22:33:08 +08:00 committed by Heiko Stuebner
parent ffcef3df68
commit b36402e4a0
1 changed files with 1 additions and 2 deletions
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3
arch/arm64/boot/dts/rockchip/rk3588-rock-5-itx.dts
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@ -690,10 +690,9 @@ &saradc {
&sdhci {
bus-width = <8>;
max-frequency = <200000000>;
max-frequency = <150000000>;
mmc-hs400-1_8v;
mmc-hs400-enhanced-strobe;
mmc-hs200-1_8v;
no-sdio;
no-sd;
non-removable;