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Subject[PATCH v4 01/10] arm64: dts: imx8mm-nitrogen-r2: add wifi/bt chip
Date
Add usdhc3 description which corresponds to the wifi/bt chip

Signed-off-by: Adrien Grassein <adrien.grassein@gmail.com>
---
.../boot/dts/freescale/imx8mm-nitrogen-r2.dts | 38 +++++++++++++++++++
1 file changed, 38 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-nitrogen-r2.dts b/arch/arm64/boot/dts/freescale/imx8mm-nitrogen-r2.dts
index c0c384d76147..4a3dabeb8c85 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-nitrogen-r2.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-nitrogen-r2.dts
@@ -9,6 +9,24 @@
/ {
model = "Boundary Devices i.MX8MMini Nitrogen8MM Rev2";
compatible = "boundary,imx8mm-nitrogen8mm", "fsl,imx8mm";
+
+ reg_vref_1v8: regulator-vref-1v8 {
+ compatible = "regulator-fixed";
+ regulator-name = "vref-1v8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+
+ reg_wlan_vmmc: regulator-wlan-vmmc {
+ compatible = "regulator-fixed";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_reg_wlan_vmmc>;
+ regulator-name = "reg_wlan_vmmc";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&gpio3 20 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
};

&A53_0 {
@@ -206,6 +224,20 @@ &usdhc2 {
status = "okay";
};

+/* wlan */
+&usdhc3 {
+ bus-width = <4>;
+ sdhci-caps-mask = <0x2 0x0>;
+ non-removable;
+ pinctrl-names = "default", "state_100mhz", "state_200mhz";
+ pinctrl-0 = <&pinctrl_usdhc3>;
+ pinctrl-1 = <&pinctrl_usdhc3_100mhz>;
+ pinctrl-2 = <&pinctrl_usdhc3_200mhz>;
+ vmmc-supply = <&reg_wlan_vmmc>;
+ vqmmc-supply = <&reg_vref_1v8>;
+ status = "okay";
+};
+
&wdog1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_wdog>;
@@ -264,6 +296,12 @@ MX8MM_IOMUXC_SAI2_RXC_GPIO4_IO22 0x1c0
>;
};

+ pinctrl_reg_wlan_vmmc: reg-wlan-vmmcgrp {
+ fsl,pins = <
+ MX8MM_IOMUXC_SAI5_RXC_GPIO3_IO20 0x16
+ >;
+ };
+
pinctrl_uart2: uart2grp {
fsl,pins = <
MX8MM_IOMUXC_UART2_RXD_UART2_DCE_RX 0x140
--
2.25.1
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