arch/arm/boot/dts/ti/omap/omap4-var-som-om44-wlan.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/ti/omap/omap4-var-som-om44-wlan.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/ti/omap/omap4-var-som-om44-wlan.dtsi
Extension
.dtsi
Size
2225 bytes
Lines
76
Domain
Architecture Layer
Bucket
arch/arm
Inferred role
Architecture Layer: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (C) 2014 Joachim Eastwood <manabian@gmail.com>
 */

/ {
	/* regulator for wl12xx on sdio4 */
	wl12xx_vmmc: wl12xx_vmmc {
		pinctrl-names = "default";
		pinctrl-0 = <&wl12xx_ctrl_pins>;
		compatible = "regulator-fixed";
		regulator-name = "vwl1271";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
		gpio = <&gpio2 11 GPIO_ACTIVE_HIGH>;	/* gpio 43 */
		startup-delay-us = <70000>;
		enable-active-high;
	};
};

&omap4_pmx_core {
	uart2_pins: uart2-pins {
		pinctrl-single,pins = <
			OMAP4_IOPAD(0x118, PIN_INPUT_PULLUP | MUX_MODE0)	/* uart2_cts.uart2_cts */
			OMAP4_IOPAD(0x11a, PIN_OUTPUT | MUX_MODE0)		/* uart2_rts.uart2_rts */
			OMAP4_IOPAD(0x11c, PIN_INPUT_PULLUP | MUX_MODE0)	/* uart2_rx.uart2_rx */
			OMAP4_IOPAD(0x11e, PIN_OUTPUT | MUX_MODE0)		/* uart2_tx.uart2_tx */
		>;
	};

	wl12xx_ctrl_pins: wl12xx-ctrl-pins {
		pinctrl-single,pins = <
			OMAP4_IOPAD(0x062, PIN_INPUT_PULLUP | MUX_MODE3)	/* gpmc_a17.gpio_41 (WLAN_IRQ) */
			OMAP4_IOPAD(0x064, PIN_OUTPUT | MUX_MODE3)		/* gpmc_a18.gpio_42 (BT_EN) */
			OMAP4_IOPAD(0x066, PIN_OUTPUT | MUX_MODE3)		/* gpmc_a19.gpio_43 (WLAN_EN) */
		>;
	};

	mmc4_pins: mmc4-pins {
		pinctrl-single,pins = <
			OMAP4_IOPAD(0x154, PIN_INPUT_PULLUP | MUX_MODE1)	/* mcspi4_clk.sdmmc4_clk */
			OMAP4_IOPAD(0x156, PIN_INPUT_PULLUP | MUX_MODE1)	/* mcspi4_simo.sdmmc4_cmd */
			OMAP4_IOPAD(0x158, PIN_INPUT_PULLUP | MUX_MODE1)	/* mcspi4_somi.sdmmc4_dat0 */
			OMAP4_IOPAD(0x15e, PIN_INPUT_PULLUP | MUX_MODE1)	/* uart4_tx.sdmmc4_dat1 */
			OMAP4_IOPAD(0x15c, PIN_INPUT_PULLUP | MUX_MODE1)	/* uart4_rx.sdmmc4_dat2 */
			OMAP4_IOPAD(0x15a, PIN_INPUT_PULLUP | MUX_MODE1)	/* mcspi4_cs0.sdmmc4_dat3 */
		>;
	};
};

&uart2 {
	pinctrl-names = "default";
	pinctrl-0 = <&uart2_pins>;
	status = "okay";
};

&mmc4 {
	pinctrl-names = "default";
	pinctrl-0 = <&mmc4_pins>;
	vmmc-supply = <&wl12xx_vmmc>;
	non-removable;
	bus-width = <4>;
	cap-power-off-card;
	status = "okay";

	#address-cells = <1>;
	#size-cells = <0>;
	wlcore: wlcore@2 {
		compatible = "ti,wl1271";
		reg = <2>;

Annotation

Implementation Notes