From ec1e91d400bf21def54c441552bdf2976ce36e3b Mon Sep 17 00:00:00 2001 From: Frieder Schrempf Date: Fri, 15 Oct 2021 14:48:35 +0200 Subject: [PATCH] arm64: dts: imx8mm-kontron: Add support for ultra high speed modes on SD card In order to use ultra high speed modes (UHS) on the SD card slot, we add matching pinctrls and fix the voltage switching for LDO5 of the PMIC, by providing the SD_VSEL pin as GPIO to the PMIC driver. Signed-off-by: Frieder Schrempf Signed-off-by: Shawn Guo --- .../boot/dts/freescale/imx8mm-kontron-n801x-s.dts | 28 +++++++++++++++++++++- .../dts/freescale/imx8mm-kontron-n801x-som.dtsi | 2 ++ 2 files changed, 29 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts index 2f24f80..fa43e09 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts +++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-s.dts @@ -189,8 +189,10 @@ }; &usdhc2 { - pinctrl-names = "default"; + pinctrl-names = "default", "state_100mhz", "state_200mhz"; pinctrl-0 = <&pinctrl_usdhc2>; + pinctrl-1 = <&pinctrl_usdhc2_100mhz>; + pinctrl-2 = <&pinctrl_usdhc2_200mhz>; vmmc-supply = <®_vdd_3v3>; vqmmc-supply = <®_nvcc_sd>; cd-gpios = <&gpio2 12 GPIO_ACTIVE_LOW>; @@ -319,4 +321,28 @@ MX8MM_IOMUXC_SD2_CD_B_GPIO2_IO12 0x019 >; }; + + pinctrl_usdhc2_100mhz: usdhc2-100mhzgrp { + fsl,pins = < + MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK 0x194 + MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD 0x1d4 + MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0 0x1d4 + MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1 0x1d4 + MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2 0x1d4 + MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3 0x1d4 + MX8MM_IOMUXC_SD2_CD_B_GPIO2_IO12 0x019 + >; + }; + + pinctrl_usdhc2_200mhz: usdhc2-200mhzgrp { + fsl,pins = < + MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK 0x196 + MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD 0x1d6 + MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0 0x1d6 + MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1 0x1d6 + MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2 0x1d6 + MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3 0x1d6 + MX8MM_IOMUXC_SD2_CD_B_GPIO2_IO12 0x019 + >; + }; }; diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi index 5a2805c..823814e 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-n801x-som.dtsi @@ -86,6 +86,7 @@ pinctrl-0 = <&pinctrl_pmic>; interrupt-parent = <&gpio1>; interrupts = <0 IRQ_TYPE_LEVEL_LOW>; + sd-vsel-gpios = <&gpio1 4 GPIO_ACTIVE_HIGH>; regulators { reg_vdd_soc: BUCK1 { @@ -225,6 +226,7 @@ pinctrl_pmic: pmicgrp { fsl,pins = < MX8MM_IOMUXC_GPIO1_IO00_GPIO1_IO0 0x141 + MX8MM_IOMUXC_GPIO1_IO04_GPIO1_IO4 0x141 >; }; -- 2.7.4