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| author | Dan Johansen <strit@manjaro.org> | 2023-03-05 11:47:31 +0100 |
|---|---|---|
| committer | Heiko Stuebner <heiko@sntech.de> | 2023-03-07 17:57:46 +0100 |
| commit | 78aedee18a86abb0bb8e31d994467c46656e9b5d (patch) | |
| tree | c67bde1b0b1a015d610e2a59e151ffdbab61378d | |
| parent | 5912b647bd0732ae8c78a6e5b259c82efd177d93 (diff) | |
| download | lwn-78aedee18a86abb0bb8e31d994467c46656e9b5d.tar.gz lwn-78aedee18a86abb0bb8e31d994467c46656e9b5d.zip | |
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>
| -rw-r--r-- | arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts | 2 |
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"; |