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authorDan Johansen <strit@manjaro.org>2023-03-05 11:47:31 +0100
committerHeiko Stuebner <heiko@sntech.de>2023-03-07 17:57:46 +0100
commit78aedee18a86abb0bb8e31d994467c46656e9b5d (patch)
treec67bde1b0b1a015d610e2a59e151ffdbab61378d /arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts
parent5912b647bd0732ae8c78a6e5b259c82efd177d93 (diff)
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 <dragan.simic@gmail.com> Signed-off-by: Dragan Simic <dragan.simic@gmail.com> Tested-by: JR Gonzalez <jrg@scientiam.org> Signed-off-by: Dan Johansen <strit@manjaro.org> Link: https://lore.kernel.org/r/20230305104730.15849-1-strit@manjaro.org Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Diffstat (limited to 'arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts')
-rw-r--r--arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts2
1 files changed, 1 insertions, 1 deletions
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";