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SubjectRe: [PATCH 1/1] ARM: dts: imx6ull-colibri: enable UHS-I for USDHC1
Date
On Thu, 2019-06-06 at 12:06 +0300, Igor Opaniuk wrote:
> From: Igor Opaniuk <igor.opaniuk@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.opaniuk@toradex.com>

Reviewed-by: Marcel Ziswiler <marcel.ziswiler@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
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