From 30cd68f2fc79b37bf0e416d026bfa06b0de921b8 Mon Sep 17 00:00:00 2001 From: Dragan Simic Date: Mon, 16 May 2022 03:46:44 +0200 Subject: [PATCH] arm: dts: Work around daughterboard issues MicroSD card slot in the Pinebook Pro is located on a separate daughterboard that's connected to the mainboard using a rather long flat cable. The resulting signal degradation causes many perfectly fine microSD cards not to work in the Pinebook Pro, which is a common source of frustration among the owners. Changing the mode and lowering the speed reportedly fixes this issue and makes many microSD cards work as expected. Tested-by: JR Gonzalez --- arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/dts/rk3399-pinebook-pro.dts b/arch/arm/dts/rk3399-pinebook-pro.dts index c2f021a1a18f..5894cb6bd0a8 100644 --- a/arch/arm/dts/rk3399-pinebook-pro.dts +++ b/arch/arm/dts/rk3399-pinebook-pro.dts @@ -945,7 +945,7 @@ &sdmmc { disable-wp; pinctrl-names = "default"; pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_bus4>; - sd-uhs-sdr104; + sd-uhs-sdr50; vmmc-supply = <&vcc3v0_sd>; vqmmc-supply = <&vcc_sdio>; status = "okay"; -- 2.33.1