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([221.220.131.19]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2fea6752095sm3807148a91.1.2025.02.28.06.33.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 28 Feb 2025 06:33:49 -0800 (PST) From: Jianfeng Liu To: linux-rockchip@lists.infradead.org Cc: Jianfeng Liu , Conor Dooley , Heiko Stuebner , Krzysztof Kozlowski , Rob Herring , Stephen Rothwell , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH] arm64: dts: rockchip: slow down emmc freq for rock 5 itx Date: Fri, 28 Feb 2025 22:33:08 +0800 Message-ID: <20250228143341.70244-1-liujianfeng1994@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" 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=3D./test_randread -direct=3D1 -iodepth 1 -thread \ -rw=3Drandwrite -ioengine=3Dpsync -bs=3D16k -size=3D1G -numjobs=3D10 \ -runtime=3D600 -group_reporting -name=3Dmytest Signed-off-by: Jianfeng Liu --- arch/arm64/boot/dts/rockchip/rk3588-rock-5-itx.dts | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/rockchip/rk3588-rock-5-itx.dts b/arch/arm6= 4/boot/dts/rockchip/rk3588-rock-5-itx.dts index 253b23ea9fba..bcefe5356936 100644 --- a/arch/arm64/boot/dts/rockchip/rk3588-rock-5-itx.dts +++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5-itx.dts @@ -724,10 +724,9 @@ &saradc { =20 &sdhci { bus-width =3D <8>; - max-frequency =3D <200000000>; + max-frequency =3D <150000000>; mmc-hs400-1_8v; mmc-hs400-enhanced-strobe; - mmc-hs200-1_8v; no-sdio; no-sd; non-removable; --=20 2.43.0