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Sun, 19 Oct 2025 21:44:11 -0700 (PDT) Message-ID: <08911ae2-fef3-432d-a236-d820c9cb67ac@gmail.com> Date: Mon, 20 Oct 2025 12:44:01 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] arm64: dts: rockchip: fix eMMC corruption on NanoPC-T6 with A3A444 chips To: Shawn Lin Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, Rob Herring , Krzysztof Kozlowski , Conor Dooley , Grzegorz Sterniczuk , Dragan Simic , Heiko Stuebner , Jonas Karlman References: <20251017073954.130710-1-cnsztl@gmail.com> From: Tianling Shen In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Hi Shawn, On 2025/10/20 9:53, Shawn Lin wrote: > Hi Tianling > > On 2025/10/17 Friday 15:39, Tianling Shen wrote: >> From: Grzegorz Sterniczuk >> >> Some NanoPC-T6 boards with A3A444 eMMC chips experience I/O errors and >> corruption when using HS400 mode. Downgrade to HS200 mode to ensure >> stable operation. > > May I ask you to test another patch I just posted to see if it fixes > your issue? > > https://patchwork.kernel.org/project/linux-mmc/patch/1760924981-52339-1- > git-send-email-shawn.lin@rock-chips.com/ Thank you for the patch! I will ask my friend to test it but he uses this board as a home router, so it may take a few days or weeks to report the result. Thanks, Tianling. > > >> >> Signed-off-by: Grzegorz Sterniczuk >> Signed-off-by: Tianling Shen >> --- >>   arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dtsi | 3 +-- >>   1 file changed, 1 insertion(+), 2 deletions(-) >> >> diff --git a/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dtsi b/ >> arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dtsi >> index fafeabe9adf9..5f63f38f7326 100644 >> --- a/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dtsi >> +++ b/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dtsi >> @@ -717,8 +717,7 @@ &sdhci { >>       no-sd; >>       non-removable; >>       max-frequency = <200000000>; >> -    mmc-hs400-1_8v; >> -    mmc-hs400-enhanced-strobe; >> +    mmc-hs200-1_8v; >>       status = "okay"; >>   }; >