From 78aedee18a86abb0bb8e31d994467c46656e9b5d Mon Sep 17 00:00:00 2001 From: Dan Johansen Date: Sun, 5 Mar 2023 11:47:31 +0100 Subject: arm64: dts: rockchip: Lower SD card speed on rk3399 Pinebook Pro 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. Co-developed-by: Dragan Simic Signed-off-by: Dragan Simic Tested-by: JR Gonzalez Signed-off-by: Dan Johansen Link: https://lore.kernel.org/r/20230305104730.15849-1-strit@manjaro.org Signed-off-by: Heiko Stuebner --- arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/arm64') diff --git a/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts b/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts index 194e48c755f6..54bb0398128f 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts +++ b/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts @@ -943,7 +943,7 @@ 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"; -- cgit v1.2.3