Rockchip方案机型从高速sd卡启动后软重启失败

support1 · 2023 年1 月 30 日 03:47

【jjm2473】在 https://github.com/istoreos/istoreos/issues/565 发布：
目前已知r2s,r4s,r66s等机型使用某些较新型的高速sd卡启动以后，软重启会失败（硬重启没问题）。
相关问题在这个issue跟进，如果有测试固件也会发到这里。

如果你遇到相关问题，请跟帖提供问题机型和使用的sd卡的品牌型号。

相关issues：https://github.com/istoreos/istoreos/issues/526 https://github.com/istoreos/istoreos/issues/561 https://github.com/istoreos/istoreos/issues/543 https://github.com/istoreos/istoreos/issues/205

外部链接：https://forum.radxa.com/t/sd-card-sdr104-mode-support/279

根据其他openwrt的补丁，可能是要给sd卡降速，重启才不会有问题。参考这些补丁：

github.com/coolsnowwolf/lede

target/linux/rockchip/patches-5.4/107-nanopi-r4s-sd-signalling.patch

6fc2d00f2

From: David Bauer <mail@david-bauer.net>
Subject: arm64: dts: rockchip: disable UHS modes for NanoPi R4S

The NanoPi R4S leaves the SD card in 1.8V signalling when rebooting
while U-Boot requires the card to be in 3.3V mode.

Remove UHS support from the SD controller so the card remains in 3.3V
mode. This reduces transfer speeds but ensures a reboot whether from
userspace or following a kernel panic is always working.

Signed-off-by: David Bauer <mail@david-bauer.net>

--- a/arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dts
@@ -145,6 +145,11 @@
 	status = "disabled";
 };

+&sdmmc {
+	/delete-property/ sd-uhs-sdr104;

此文件已被截断。显示原始文件

github.com/coolsnowwolf/lede

target/linux/rockchip/patches-5.4/105-mmc-core-set-initial-signal-voltage-on-power-off.patch

6fc2d00f2

From 0d329112c709d6cfedf0fffb19f0cc6b19043f6b Mon Sep 17 00:00:00 2001
From: Jonas Karlman <jonas@kwiboo.se>
Date: Wed, 20 Feb 2019 07:38:34 +0000
Subject: [PATCH] mmc: core: set initial signal voltage on power off

Some boards have SD card connectors where the power rail cannot be switched
off by the driver. If the card has not been power cycled, it may still be
using 1.8V signaling after a warm re-boot. Bootroms expecting 3.3V signaling
will fail to boot from a UHS card that continue to use 1.8V signaling.

Set initial signal voltage in mmc_power_off() to allow re-boot to function.

This fixes re-boot with UHS cards on Asus Tinker Board (Rockchip RK3288),
same issue have been seen on some Rockchip RK3399 boards.

I am sending this as a RFC because I have no insights into SD/MMC subsystem,
this change fix a re-boot issue on my boards and does not break emmc/sdio.
Is this an acceptable workaround? Any advice is appreciated.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>

此文件已被截断。显示原始文件

github.com/openwrt/openwrt

target/linux/rockchip/patches-5.10/105-nanopi-r4s-sd-signalling.patch

2b583ab8a

From: David Bauer <mail@david-bauer.net>
Subject: arm64: dts: rockchip: disable UHS modes for NanoPi R4S

The NanoPi R4S leaves the SD card in 1.8V signalling when rebooting
while U-Boot requires the card to be in 3.3V mode.

Remove UHS support from the SD controller so the card remains in 3.3V
mode. This reduces transfer speeds but ensures a reboot whether from
userspace or following a kernel panic is always working.

Signed-off-by: David Bauer <mail@david-bauer.net>

--- a/arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dts
@@ -121,6 +121,11 @@
 	status = "disabled";
 };

+&sdmmc {
+	/delete-property/ sd-uhs-sdr104;

此文件已被截断。显示原始文件