openwrt/target/linux/rockchip/patches-6.6/119-arm64-dts-rockchip-lower-mmc-speed-for-Radxa-Rock-5B.patch
Tianling Shen 1c61a8f958 rockchip: add Radxa ROCK 5B support
Hardware
--------
RockChip RK3588 ARM64 (8 cores)
4/8/16/32GB LPDDR4X RAM
2500 Base-T
RGB LED
eMMC Connector
SPI-NOR 16MB
Micro-SD Slot
2x USB 2.0 Port
2x USB 3.0 Port
Headphone Jack
M.2 E-Key
M.2 M-Key
USB PD 5/9/12/15/20V Power

Install
--------
Uncompress the OpenWrt sysupgrade and write it to a micro SD card or
internal eMMC using dd.

Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org>
Link: https://github.com/openwrt/openwrt/pull/16149
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2024-08-21 00:10:47 +02:00

27 lines
884 B
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Tianling Shen <cnsztl@gmail.com>
Date: Mon Aug 05 16:14:33 2024 +0800
Subject: [PATCH] arm64: dts: rockchip: lower mmc speed for Radxa Rock 5B
The previously stated speed of sdr-104 in is too high for the hardware
to reliably communicate with some fast SD cards.
Rockchip boards have a common bug when operating uhs speed, which will
hang the system during a soft reboot.
To be on the safe side, lower the speed to workaround.
Signed-off-by: Tianling Shen <cnsztl@gmail.com>
---
--- a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
@@ -419,7 +419,7 @@
cap-sd-highspeed;
cd-gpios = <&gpio0 RK_PA4 GPIO_ACTIVE_LOW>;
disable-wp;
- sd-uhs-sdr104;
+ sd-uhs-sdr50;
vmmc-supply = <&vcc_3v3_s3>;
vqmmc-supply = <&vccio_sd_s0>;
status = "okay";