Re: [PATCH 1/2] ARM: dts: rockchip: remove excess sd properties for firefly reload

Heiko Stuebner
2016-08-14T12:30:51Z

Am Sonntag, 14. August 2016, 19:27:23 CEST schrieb Randy Li:
> Because of a bug in hardware design, the sdcard at firefly
> rk3288 reload board can't switch the io voltage level to 1.8v.
>
> Signed-off-by: Randy Li <ayaka@soulik.info>
> ---
> arch/arm/boot/dts/rk3288-firefly-reload.dts | 7 +------
> 1 file changed, 1 insertion(+), 6 deletions(-)
>
> diff --git a/arch/arm/boot/dts/rk3288-firefly-reload.dts
> b/arch/arm/boot/dts/rk3288-firefly-reload.dts index 43145d1..a2b1f14 100644
> --- a/arch/arm/boot/dts/rk3288-firefly-reload.dts
> +++ b/arch/arm/boot/dts/rk3288-firefly-reload.dts
> @@ -202,18 +202,13 @@
> bus-width = <4>;
> cap-mmc-highspeed;
> cap-sd-highspeed;
> - sd-uhs-sdr12;
> - sd-uhs-sdr25;
> - sd-uhs-sdr50;
> - sd-uhs-sdr104;
> - sd-uhs-ddr50;
> card-detect-delay = <200>;
> disable-wp;
> num-slots = <1>;
> pinctrl-names = "default";
> pinctrl-0 = <&sdmmc_clk>, <&sdmmc_cmd>, <&sdmmc_cd>, <&sdmmc_bus4>;
> vmmc-supply = <&vcc_sd>;
> - vqmmc-supply = <&vccio_sd>;
> + vqmmc-supply = <&vcc_sd>;

that looks wrong. vccio_sd is still the vqmmc supply in the schematics even
though we don't want to switch to 1.8V . But that regulator should still be
controllable without needing a regulator-always-on in the future.

Heiko