On Wed, Sep 04, 2019 at 02:09:18PM +0300, Igor Opaniuk wrote:
> From: Igor Opaniuk <igor.opan...@toradex.com>
>
> Introduce DTS for Colibri iMX6S/DL V1.1x re-design, where UHS-I support was
> added. Provide proper configuration for VGEN3, which allows that rail to
> be automatically switched to 1.8 volts for proper UHS-I operation mode.
>
> Signed-off-by: Igor Opaniuk <igor.opan...@toradex.com>
> ---
>
> v3:
> - change hierarchy according to Marco's suggestions [Marco Felsch]
> - adjust compatible string adding v1.1 [Stefan Agner]
>
> v2:
> - rework hierarchy of dts files, and a separate dtsi for Colibri
> iMX6S/DL V1.1x re-design, where UHS-I was added [Marcel Ziswiler]
> - add comments about vgen3 power rail [Marcel Ziswiler]
> - fix other minor issues, addressing Marcel's comments. [Marcel Ziswiler]
>
> arch/arm/boot/dts/Makefile | 1 +
> .../boot/dts/imx6dl-colibri-v1_1-eval-v3.dts | 59 +++++++++++++++++++
> arch/arm/boot/dts/imx6qdl-colibri.dtsi | 11 +++-
> 3 files changed, 70 insertions(+), 1 deletion(-)
> create mode 100644 arch/arm/boot/dts/imx6dl-colibri-v1_1-eval-v3.dts
>
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index 9159fa2cea90..87dfc3db4343 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -401,6 +401,7 @@ dtb-$(CONFIG_SOC_IMX6Q) += \
> imx6dl-aristainetos2_4.dtb \
> imx6dl-aristainetos2_7.dtb \
> imx6dl-colibri-eval-v3.dtb \
> + imx6dl-colibri-v1_1-eval-v3.dtb \
> imx6dl-cubox-i.dtb \
> imx6dl-cubox-i-emmc-som-v15.dtb \
> imx6dl-cubox-i-som-v15.dtb \
> diff --git a/arch/arm/boot/dts/imx6dl-colibri-v1_1-eval-v3.dts
> b/arch/arm/boot/dts/imx6dl-colibri-v1_1-eval-v3.dts
> new file mode 100644
> index 000000000000..92fcf4e62ba2
> --- /dev/null
> +++ b/arch/arm/boot/dts/imx6dl-colibri-v1_1-eval-v3.dts
> @@ -0,0 +1,59 @@
> +// SPDX-License-Identifier: GPL-2.0 OR X11
> +/*
> + * Copyright 2019 Toradex AG
> + */
> +
> +/dts-v1/;
> +
> +#include "imx6dl-colibri-eval-v3.dts"
> +
> +/ {
> + model = "Toradex Colibri iMX6DL/S V1.1 on Colibri Evaluation Board V3";
> + compatible = "toradex,colibri_imx6dl-v1_1-eval-v3",
> + "toradex,colibri_imx6dl-v1_1",
> + "toradex,colibri_imx6dl-eval-v3",
> + "toradex,colibri_imx6dl",
Please make sure these compatibles are documented.
> + "fsl,imx6dl";
> +};
> +
> +&iomuxc {
> + pinctrl_usdhc1_100mhz: usdhc1grp100mhz {
> + fsl,pins = <
> + MX6QDL_PAD_SD1_CMD__SD1_CMD 0x170b1
> + MX6QDL_PAD_SD1_CLK__SD1_CLK 0x100b1
> + MX6QDL_PAD_SD1_DAT0__SD1_DATA0 0x170b1
> + MX6QDL_PAD_SD1_DAT1__SD1_DATA1 0x170b1
> + MX6QDL_PAD_SD1_DAT2__SD1_DATA2 0x170b1
> + MX6QDL_PAD_SD1_DAT3__SD1_DATA3 0x170b1
> + >;
> + };
> +
> + pinctrl_usdhc1_200mhz: usdhc1grp200mhz {
> + fsl,pins = <
> + MX6QDL_PAD_SD1_CMD__SD1_CMD 0x170f1
> + MX6QDL_PAD_SD1_CLK__SD1_CLK 0x100f1
> + MX6QDL_PAD_SD1_DAT0__SD1_DATA0 0x170f1
> + MX6QDL_PAD_SD1_DAT1__SD1_DATA1 0x170f1
> + MX6QDL_PAD_SD1_DAT2__SD1_DATA2 0x170f1
> + MX6QDL_PAD_SD1_DAT3__SD1_DATA3 0x170f1
> + >;
> + };
> +};
> +
> +/* Colibri MMC */
> +&usdhc1 {
> + pinctrl-names = "default", "state_100mhz", "state_200mhz";
> + pinctrl-0 = <&pinctrl_usdhc1 &pinctrl_mmc_cd>;
> + pinctrl-1 = <&pinctrl_usdhc1_100mhz &pinctrl_mmc_cd>;
> + pinctrl-2 = <&pinctrl_usdhc1_200mhz &pinctrl_mmc_cd>;
> + vmmc-supply = <®_module_3v3>;
> + vqmmc-supply = <&vgen3_reg>;
> + enable-sdio-wakeup;
Check out Documentation/devicetree/bindings/power/wakeup-source.txt
Shawn
> + keep-power-in-suspend;
> + sd-uhs-sdr12;
> + sd-uhs-sdr25;
> + sd-uhs-sdr50;
> + sd-uhs-sdr104;
> + status = "okay";
> + /delete-property/no-1-8-v;
> +};
> diff --git a/arch/arm/boot/dts/imx6qdl-colibri.dtsi
> b/arch/arm/boot/dts/imx6qdl-colibri.dtsi
> index 1beac22266ed..27097ab5eaab 100644
> --- a/arch/arm/boot/dts/imx6qdl-colibri.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-colibri.dtsi
> @@ -215,7 +215,16 @@
> regulator-always-on;
> };
>
> - /* vgen3: unused */
> + /*
> + * +V3.3_1.8_SD1 coming off VGEN3 and supplying
> + * the i.MX 6 NVCC_SD1.
> + */
> + vgen3_reg: vgen3 {
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
>
> vgen4_reg: vgen4 {
> regulator-min-microvolt = <1800000>;
> --
> 2.17.1
>
