ARM: dts: am437x-sk-evm: add wilink8 support

enable mmc3 used for wlan and uart1 used for bluetooth
configure the gpios used for wlan and bluetooth controls
add fixed voltage regulator used for wlan power control

Signed-off-by: Eyal Reizer <eyalr@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 115 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/am437x-sk-evm.dts b/arch/arm/boot/dts/am437x-sk-evm.dts
index 4118802b7fea..440351ad0b80 100644
--- a/arch/arm/boot/dts/am437x-sk-evm.dts
+++ b/arch/arm/boot/dts/am437x-sk-evm.dts
@@ -15,6 +15,7 @@
 #include <dt-bindings/pwm/pwm.h>
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/input/input.h>
+#include <dt-bindings/interrupt-controller/irq.h>
 
 / {
 	model = "TI AM437x SK EVM";
@@ -158,6 +159,22 @@
 			};
 		};
 	};
+
+	vmmcwl_fixed: fixedregulator-mmcwl {
+		/*
+		 * WL_EN is not SDIO standard compliant. It is an out of band
+		 * signal and hard to be dealt with in a standard way by the
+		 * SDIO core driver.
+		 * So modelling the WL_EN line as a regulator was a natural
+		 * choice as the MMC core already deals with MMC supplies.
+		 */
+		compatible = "regulator-fixed";
+		regulator-name = "vmmcwl_fixed";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		gpio = <&gpio4 8 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
 };
 
 &am43xx_pinmux {
@@ -418,6 +435,62 @@
 			AM4372_IOPAD(0xac4, PIN_OUTPUT | MUX_MODE0) /* usb0_drvvbus.usb0_drvvbus */
 		>;
 	};
+
+	mmc3_pins_default: pinmux_mmc3_pins_default {
+		pinctrl-single,pins = <
+			AM4372_IOPAD(0x9f0, PIN_INPUT_PULLUP | MUX_MODE3) /* (AD21) cam1_data2.mmc2_clk */
+			AM4372_IOPAD(0x9f4, PIN_INPUT_PULLUP | MUX_MODE3) /* (AE22) cam1_data3.mmc2_cmd */
+			AM4372_IOPAD(0x9f8, PIN_INPUT_PULLUP | MUX_MODE3) /* (AD22) cam1_data4.mmc2_dat0 */
+			AM4372_IOPAD(0x9fc, PIN_INPUT_PULLUP | MUX_MODE3) /* (AE23) cam1_data5.mmc2_dat1 */
+			AM4372_IOPAD(0xa00, PIN_INPUT_PULLUP | MUX_MODE3) /* (AD23) cam1_data6.mmc2_dat2 */
+			AM4372_IOPAD(0xa04, PIN_INPUT_PULLUP | MUX_MODE3) /* (AE24) cam1_data7.mmc2_dat3 */
+		>;
+	};
+
+	mmc3_pins_sleep: pinmux_mmc3_pins_sleep {
+		pinctrl-single,pins = <
+			AM4372_IOPAD(0x9f0, PIN_INPUT_PULLDOWN | MUX_MODE7) /* (AD21) cam1_data2.mmc2_clk */
+			AM4372_IOPAD(0x9f4, PIN_INPUT_PULLDOWN | MUX_MODE7) /* (AE22) cam1_data3.mmc2_cmd */
+			AM4372_IOPAD(0x9f8, PIN_INPUT_PULLDOWN | MUX_MODE7) /* (AD22) cam1_data4.mmc2_dat0 */
+			AM4372_IOPAD(0x9fc, PIN_INPUT_PULLDOWN | MUX_MODE7) /* (AE23) cam1_data5.mmc2_dat1 */
+			AM4372_IOPAD(0xa00, PIN_INPUT_PULLDOWN | MUX_MODE7) /* (AD23) cam1_data6.mmc2_dat2 */
+			AM4372_IOPAD(0xa04, PIN_INPUT_PULLDOWN | MUX_MODE7) /* (AE24) cam1_data7.mmc2_dat3 */
+		>;
+	};
+
+	wlan_pins_default: pinmux_wlan_pins_default {
+		pinctrl-single,pins = <
+			AM4372_IOPAD(0x9d0, PIN_OUTPUT_PULLDOWN | MUX_MODE7)		/* cam1_data8.gpio4_8 WL_EN */
+			AM4372_IOPAD(0x9e4, PIN_INPUT | WAKEUP_ENABLE | MUX_MODE7)	/* cam1_wen.gpio4_13 WL_IRQ */
+		>;
+	};
+
+	wlan_pins_sleep: pinmux_wlan_pins_sleep {
+		pinctrl-single,pins = <
+			AM4372_IOPAD(0x9d0, PIN_OUTPUT_PULLDOWN | MUX_MODE7)		/* cam1_data8.gpio4_8 WL_EN */
+			AM4372_IOPAD(0x9e4, PIN_INPUT | WAKEUP_ENABLE | MUX_MODE7)	/* cam1_wen.gpio4_13 WL_IRQ */
+		>;
+	};
+
+	uart1_bt_pins_default: pinmux_uart1_bt_pins_default {
+		pinctrl-single,pins = <
+			AM4372_IOPAD(0x980, PIN_INPUT | MUX_MODE0)		/* uart1_rxd.uart1_rxd */
+			AM4372_IOPAD(0x984, PIN_OUTPUT_PULLDOWN | MUX_MODE0)	/* uart1_txd.uart1_txd */
+			AM4372_IOPAD(0x978, PIN_INPUT_PULLUP | MUX_MODE0)	/* uart1_ctsn.uart1_ctsn */
+			AM4372_IOPAD(0x97c, PIN_OUTPUT_PULLDOWN | MUX_MODE0)	/* uart1_rtsn.uart1_rtsn */
+			AM4372_IOPAD(0x9cc, PIN_OUTPUT_PULLDOWN | MUX_MODE7)	/* cam1_data9.gpio4_7 BT_EN */
+		>;
+	};
+
+	uart1_bt_pins_sleep: pinmux_uart1_bt_pins_sleep {
+		pinctrl-single,pins = <
+			AM4372_IOPAD(0x980, PIN_OUTPUT_PULLDOWN | MUX_MODE7)	/* uart1_rxd.uart1_rxd */
+			AM4372_IOPAD(0x984, PIN_OUTPUT_PULLDOWN | MUX_MODE7)	/* uart1_txd.uart1_txd */
+			AM4372_IOPAD(0x978, PIN_OUTPUT_PULLDOWN | MUX_MODE7)	/* uart1_ctsn.uart1_ctsn */
+			AM4372_IOPAD(0x97c, PIN_OUTPUT_PULLDOWN | MUX_MODE7)	/* uart1_rtsn.uart1_rtsn */
+			AM4372_IOPAD(0x9cc, PIN_OUTPUT_PULLUP | MUX_MODE7)	/* cam1_data9.gpio4_7 BT_EN */
+		>;
+	};
 };
 
 &i2c0 {
@@ -581,6 +654,10 @@
 	status = "okay";
 };
 
+&gpio4 {
+	status = "okay";
+};
+
 &gpio5 {
 	status = "okay";
 };
@@ -595,6 +672,44 @@
 	cd-gpios = <&gpio0 6 GPIO_ACTIVE_LOW>;
 };
 
+&uart1 {
+	status = "okay";
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&uart1_bt_pins_default>;
+	pinctrl-1 = <&uart1_bt_pins_sleep>;
+};
+
+&mmc3 {
+	status = "okay";
+	/*
+	 * these are on the crossbar and are outlined in the
+	 * xbar-event-map element
+	 */
+	dmas = <&edma_xbar 30 0 1>,
+		<&edma_xbar 31 0 2>;
+	dma-names = "tx", "rx";
+	vmmc-supply = <&vmmcwl_fixed>;
+	bus-width = <4>;
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&mmc3_pins_default>;
+	pinctrl-1 = <&mmc3_pins_sleep>;
+	cap-power-off-card;
+	keep-power-in-suspend;
+	ti,non-removable;
+
+	#address-cells = <1>;
+	#size-cells = <0>;
+	wlcore: wlcore@2 {
+		compatible = "ti,wl1835";
+		pinctrl-names = "default", "sleep";
+		pinctrl-0 = <&wlan_pins_default>;
+		pinctrl-1 = <&wlan_pins_sleep>;
+		reg = <2>;
+		interrupt-parent = <&gpio4>;
+		interrupts = <13 IRQ_TYPE_LEVEL_HIGH>;
+	};
+};
+
 &usb2_phy1 {
 	status = "okay";
 };