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From: Tianling Shen <cnsztl@gmail.com>
To: Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Heiko Stuebner <heiko@sntech.de>,
	Grzegorz Sterniczuk <grzegorz@sternicz.uk>,
	Tianling Shen <cnsztl@gmail.com>,
	Dragan Simic <dsimic@manjaro.org>,
	Jonas Karlman <jonas@kwiboo.se>
Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH] arm64: dts: rockchip: fix eMMC corruption on NanoPC-T6 with A3A444 chips
Date: Fri, 17 Oct 2025 15:39:54 +0800	[thread overview]
Message-ID: <20251017073954.130710-1-cnsztl@gmail.com> (raw)

From: Grzegorz Sterniczuk <grzegorz@sternicz.uk>

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.

Signed-off-by: Grzegorz Sterniczuk <grzegorz@sternicz.uk>
Signed-off-by: Tianling Shen <cnsztl@gmail.com>
---
 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";
 };
 
-- 
2.51.0


             reply	other threads:[~2025-10-17  7:40 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-10-17  7:39 Tianling Shen [this message]
2025-10-17 10:25 ` [PATCH] arm64: dts: rockchip: fix eMMC corruption on NanoPC-T6 with A3A444 chips Dragan Simic
2025-10-17 12:08   ` Tianling Shen
2025-10-17 15:15     ` Dragan Simic
2025-10-17 16:34       ` Tianling Shen
2025-10-17 16:51         ` Dragan Simic
2025-10-18  0:42       ` Jimmy Hon
2025-10-18  8:30         ` Dragan Simic
2025-10-18 12:14           ` Hugh Cole-Baker
2025-10-18 13:57             ` Dragan Simic
2025-10-19 17:25               ` Anand Moon
2025-10-19 18:09                 ` Dragan Simic
2025-10-20  3:13                   ` Anand Moon
     [not found]   ` <CABGV7H_pTkJ_-WQNgVbGE+Ys7jOZaKcRrnMtPr8idfKoYMgKjg@mail.gmail.com>
2025-10-19 17:04     ` Dragan Simic
2025-10-20  1:53 ` Shawn Lin
2025-10-20  4:44   ` Tianling Shen
2025-10-20  8:20     ` Shawn Lin
2025-10-27 17:34     ` Tianling Shen
2025-10-30  9:16       ` Jianfeng Liu
2025-11-01 11:54       ` Heiko Stuebner
2025-11-01 12:14         ` Tianling Shen
2025-11-01 12:50         ` Dragan Simic
2025-11-05 11:59           ` Anand Moon
  -- strict thread matches above, loose matches on Subject: below --
2025-10-20  9:41 Dragan Simic

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