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. Fixes: #18844 Signed-off-by: Grzegorz Sterniczuk <grzegorz@sternicz.uk> Link: https://github.com/openwrt/openwrt/pull/19398 [Add patch header] Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
27 lines
853 B
Diff
27 lines
853 B
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Grzegorz Sterniczuk <grzegorz@sternicz.uk>
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Date: Mon, 21 Jul 2025 23:24:11 +0200
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Subject: rockchip: fix eMMC corruption on NanoPC-T6 with A3A444 chips
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Some NanoPC-T6 boards with A3A444 eMMC chips experience I/O errors and
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corruption when using HS400 mode. Downgrade to HS200 mode to ensure
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stable operation.
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Fixes: #18844
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Signed-off-by: Grzegorz Sterniczuk <grzegorz@sternicz.uk>
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---
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arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dtsi | 3 +--
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1 file changed, 1 insertion(+), 2 deletions(-)
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--- a/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dtsi
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+++ b/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6.dtsi
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@@ -619,8 +619,7 @@
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no-sd;
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non-removable;
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max-frequency = <200000000>;
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- mmc-hs400-1_8v;
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- mmc-hs400-enhanced-strobe;
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+ mmc-hs200-1_8v;
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status = "okay";
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};
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