Re: [PATCH 1/1] ARM: dts: imx6ull-colibri: enable UHS-I for USDHC1

[Marcel Ziswiler]

On Thu, 2019-06-06 at 12:06 +0300, Igor Opaniuk wrote:
> From: Igor Opaniuk <igor.opan...@toradex.com>
> 
> Allows to use the SD interface at a higher speed mode if the card
> supports it. For this the signaling voltage is switched from 3.3V to
> 1.8V under the usdhc1's drivers control.
> 
> Signed-off-by: Igor Opaniuk <igor.opan...@toradex.com>

Reviewed-by: Marcel Ziswiler <marcel.ziswi...@toradex.com>

> ---
>  arch/arm/boot/dts/imx6ul.dtsi                  |  4 ++++
>  arch/arm/boot/dts/imx6ull-colibri-eval-v3.dtsi | 11 +++++++++--
>  arch/arm/boot/dts/imx6ull-colibri.dtsi         |  6 ++++++
>  3 files changed, 19 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/imx6ul.dtsi
> b/arch/arm/boot/dts/imx6ul.dtsi
> index fc388b84bf22..91a0ced44e27 100644
> --- a/arch/arm/boot/dts/imx6ul.dtsi
> +++ b/arch/arm/boot/dts/imx6ul.dtsi
> @@ -857,6 +857,8 @@
>                                        <&clks IMX6UL_CLK_USDHC1>,
>                                        <&clks IMX6UL_CLK_USDHC1>;
>                               clock-names = "ipg", "ahb", "per";
> +                             fsl,tuning-step= <2>;
> +                             fsl,tuning-start-tap = <20>;
>                               bus-width = <4>;
>                               status = "disabled";
>                       };
> @@ -870,6 +872,8 @@
>                                        <&clks IMX6UL_CLK_USDHC2>;
>                               clock-names = "ipg", "ahb", "per";
>                               bus-width = <4>;
> +                             fsl,tuning-step= <2>;
> +                             fsl,tuning-start-tap = <20>;
>                               status = "disabled";
>                       };
>  
> diff --git a/arch/arm/boot/dts/imx6ull-colibri-eval-v3.dtsi
> b/arch/arm/boot/dts/imx6ull-colibri-eval-v3.dtsi
> index 006690ea98c0..7dc7770cf52c 100644
> --- a/arch/arm/boot/dts/imx6ull-colibri-eval-v3.dtsi
> +++ b/arch/arm/boot/dts/imx6ull-colibri-eval-v3.dtsi
> @@ -145,13 +145,20 @@
>  };
>  
>  &usdhc1 {
> -     pinctrl-names = "default";
> +     pinctrl-names = "default", "state_100mhz", "state_200mhz",
> "sleep";
>       pinctrl-0 = <&pinctrl_usdhc1 &pinctrl_snvs_usdhc1_cd>;
> -     no-1-8-v;
> +     pinctrl-1 = <&pinctrl_usdhc1_100mhz &pinctrl_snvs_usdhc1_cd>;
> +     pinctrl-2 = <&pinctrl_usdhc1_100mhz &pinctrl_snvs_usdhc1_cd>;
> +     pinctrl-3 = <&pinctrl_usdhc1 &pinctrl_snvs_usdhc1_sleep_cd>;
>       cd-gpios = <&gpio5 0 GPIO_ACTIVE_LOW>;
>       disable-wp;
>       wakeup-source;
>       keep-power-in-suspend;
>       vmmc-supply = <&reg_3v3>;
> +     vqmmc-supply = <&reg_sd1_vmmc>;
> +     sd-uhs-sdr12;
> +     sd-uhs-sdr25;
> +     sd-uhs-sdr50;
> +     sd-uhs-sdr104;
>       status = "okay";
>  };
> diff --git a/arch/arm/boot/dts/imx6ull-colibri.dtsi
> b/arch/arm/boot/dts/imx6ull-colibri.dtsi
> index 9ad1da159768..d56728f03c35 100644
> --- a/arch/arm/boot/dts/imx6ull-colibri.dtsi
> +++ b/arch/arm/boot/dts/imx6ull-colibri.dtsi
> @@ -545,6 +545,12 @@
>               >;
>       };
>  
> +     pinctrl_snvs_usdhc1_sleep_cd: snvs-usdhc1-cd-grp-slp {
> +             fsl,pins = <
> +                     MX6ULL_PAD_SNVS_TAMPER0__GPIO5_IO00     0x0
> +             >;
> +     };
> +
>       pinctrl_snvs_wifi_pdn: snvs-wifi-pdn-grp {
>               fsl,pins = <
>                       MX6ULL_PAD_BOOT_MODE1__GPIO5_IO11       0x14