diff options
| author | Stefano Radaelli <stefano.r@variscite.com> | 2026-03-19 21:40:28 +0300 |
|---|---|---|
| committer | Frank Li <Frank.Li@nxp.com> | 2026-03-27 16:52:38 +0300 |
| commit | 20aa2aee5050473d83bd96a6ebbde9f3735e8b84 (patch) | |
| tree | 46d4e6a022fd3ba29fca4b431c7c9df8f27aeede | |
| parent | 4e9088abeacb9fca16c3774bd3d57a696924a0f2 (diff) | |
| download | linux-20aa2aee5050473d83bd96a6ebbde9f3735e8b84.tar.xz | |
arm64: dts: imx8mm-var-som-symphony: Enable uSD on USDHC2
Enable the microSD slot on the VAR-SOM Symphony carrier board.
Configure USDHC2 with card-detect GPIO, pinctrl states for the supported
bus speeds and the required VMMC supply.
Update the VMMC regulator to match the latest carrier revision by moving
the enable GPIO to GPIO4_IO22 and adding the required off-on delay.
Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts | 59 |
1 files changed, 57 insertions, 2 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts b/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts index a425ee0ed8a9..6da29845985f 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts +++ b/arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts @@ -24,7 +24,8 @@ regulator-name = "VSD_3V3"; regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; - gpio = <&gpio2 19 GPIO_ACTIVE_HIGH>; + gpio = <&gpio4 22 GPIO_ACTIVE_HIGH>; + off-on-delay-us = <20000>; enable-active-high; }; @@ -220,6 +221,18 @@ status = "okay"; }; +/* SD */ +&usdhc2 { + pinctrl-names = "default", "state_100mhz", "state_200mhz"; + pinctrl-0 = <&pinctrl_usdhc2>, <&pinctrl_usdhc2_gpio>; + pinctrl-1 = <&pinctrl_usdhc2_100mhz>, <&pinctrl_usdhc2_gpio>; + pinctrl-2 = <&pinctrl_usdhc2_200mhz>, <&pinctrl_usdhc2_gpio>; + cd-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>; + vmmc-supply = <®_usdhc2_vmmc>; + bus-width = <4>; + status = "okay"; +}; + &pinctrl_fec1 { fsl,pins = < MX8MM_IOMUXC_ENET_MDC_ENET1_MDC 0x3 @@ -280,7 +293,7 @@ pinctrl_reg_usdhc2_vmmc: regusdhc2vmmcgrp { fsl,pins = < - MX8MM_IOMUXC_SD2_RESET_B_GPIO2_IO19 0x41 + MX8MM_IOMUXC_SAI2_RXC_GPIO4_IO22 0x41 >; }; @@ -304,4 +317,46 @@ MX8MM_IOMUXC_UART4_TXD_UART4_DCE_TX 0x140 >; }; + + pinctrl_usdhc2: usdhc2grp { + fsl,pins = < + MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK 0x190 + MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD 0x1d0 + MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0 0x1d0 + MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1 0x1d0 + MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2 0x1d0 + MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3 0x1d0 + MX8MM_IOMUXC_GPIO1_IO04_USDHC2_VSELECT 0x1d0 + >; + }; + + 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_GPIO1_IO04_USDHC2_VSELECT 0x1d0 + >; + }; + + 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_GPIO1_IO04_USDHC2_VSELECT 0x1d0 + >; + }; + + pinctrl_usdhc2_gpio: usdhc2gpiogrp { + fsl,pins = < + MX8MM_IOMUXC_GPIO1_IO10_GPIO1_IO10 0xc1 + >; + }; }; |