Commit d8075e94 authored by Alistair Francis's avatar Alistair Francis Committed by Shawn Guo
Browse files

ARM: dts: imx7d-remarkable2: Add WiFi support 



Add support for the bcm4329-fmac WiFi in the reMarkable 2, connected via SDHC.

Signed-off-by: default avatarAlistair Francis <alistair@alistair23.me>
Reviewed-by: default avatarFabio Estevam <festevam@gmail.com>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 5b9829e3

arch/arm/boot/dts/imx7d-remarkable2.dts

+91 −0
Original line number Diff line number Diff line
@@ -21,6 +21,27 @@ 
		device_type = "memory";

		reg = <0x80000000 0x40000000>;

	};



	reg_brcm: regulator-brcm {

		compatible = "regulator-fixed";

		regulator-name = "brcm_reg";

		regulator-min-microvolt = <3300000>;

		regulator-max-microvolt = <3300000>;

		pinctrl-names = "default";

		pinctrl-0 = <&pinctrl_brcm_reg>;

		gpio = <&gpio6 13 GPIO_ACTIVE_HIGH>;

		enable-active-high;

		startup-delay-us = <150>;

	};



	wifi_pwrseq: wifi_pwrseq {

		compatible = "mmc-pwrseq-simple";

		pinctrl-names = "default";

		pinctrl-0 = <&pinctrl_wifi>;

		reset-gpios = <&gpio5 9 GPIO_ACTIVE_LOW>;

		clocks = <&clks IMX7D_CLKO2_ROOT_DIV>;

		clock-names = "ext_clock";

	};

};



&clks {
@@ -56,6 +77,27 @@ 
	status = "okay";

};



&usdhc2 {

	#address-cells = <1>;

	#size-cells = <0>;

	pinctrl-names = "default", "state_100mhz", "state_200mhz", "sleep";

	pinctrl-0 = <&pinctrl_usdhc2>;

	pinctrl-1 = <&pinctrl_usdhc2_100mhz>;

	pinctrl-2 = <&pinctrl_usdhc2_200mhz>;

	mmc-pwrseq = <&wifi_pwrseq>;

	vmmc-supply = <&reg_brcm>;

	bus-width = <4>;

	non-removable;

	keep-power-in-suspend;

	cap-power-off-card;

	status = "okay";



	brcmf: bcrmf@1 {

		reg = <1>;

		compatible = "brcm,bcm4329-fmac";

	};

};



&usdhc3 {

	pinctrl-names = "default", "state_100mhz", "state_200mhz", "sleep";

	pinctrl-0 = <&pinctrl_usdhc3>;
@@ -76,6 +118,13 @@ 
};



&iomuxc {

	pinctrl_brcm_reg: brcmreggrp {

		fsl,pins = <

			/* WIFI_PWR_EN */

			MX7D_PAD_SAI1_TX_BCLK__GPIO6_IO13	0x14

		>;

	};



	pinctrl_uart1: uart1grp {

		fsl,pins = <

			MX7D_PAD_UART1_TX_DATA__UART1_DCE_TX	0x79
@@ -90,6 +139,39 @@ 
		>;

	};



	pinctrl_usdhc2: usdhc2grp {

		fsl,pins = <

			MX7D_PAD_SD2_CMD__SD2_CMD		0x59

			MX7D_PAD_SD2_CLK__SD2_CLK		0x19

			MX7D_PAD_SD2_DATA0__SD2_DATA0		0x59

			MX7D_PAD_SD2_DATA1__SD2_DATA1		0x59

			MX7D_PAD_SD2_DATA2__SD2_DATA2		0x59

			MX7D_PAD_SD2_DATA3__SD2_DATA3		0x59

		>;

	};



	pinctrl_usdhc2_100mhz: usdhc2grp_100mhz {

		fsl,pins = <

			MX7D_PAD_SD2_CMD__SD2_CMD		0x5a

			MX7D_PAD_SD2_CLK__SD2_CLK		0x1a

			MX7D_PAD_SD2_DATA0__SD2_DATA0		0x5a

			MX7D_PAD_SD2_DATA1__SD2_DATA1		0x5a

			MX7D_PAD_SD2_DATA2__SD2_DATA2		0x5a

			MX7D_PAD_SD2_DATA3__SD2_DATA3		0x5a

		>;

	};



	pinctrl_usdhc2_200mhz: usdhc2grp_200mhz {

		fsl,pins = <

			MX7D_PAD_SD2_CMD__SD2_CMD		0x5b

			MX7D_PAD_SD2_CLK__SD2_CLK		0x1b

			MX7D_PAD_SD2_DATA0__SD2_DATA0		0x5b

			MX7D_PAD_SD2_DATA1__SD2_DATA1		0x5b

			MX7D_PAD_SD2_DATA2__SD2_DATA2		0x5b

			MX7D_PAD_SD2_DATA3__SD2_DATA3		0x5b

		>;

	};



	pinctrl_usdhc3: usdhc3grp {

		fsl,pins = <

			MX7D_PAD_SD3_CMD__SD3_CMD		0x59
@@ -143,4 +225,13 @@ 
			MX7D_PAD_ENET1_COL__WDOG1_WDOG_ANY	0x74

		>;

	};



	pinctrl_wifi: wifigrp {

		fsl,pins = <

			/* WiFi Reg On */

			MX7D_PAD_SD2_CD_B__GPIO5_IO9		0x00000014

			/* WiFi Sleep 32k */

			MX7D_PAD_SD1_WP__CCM_CLKO2		0x00000014

		>;

	};

};