From b86516452cfd94321900abe7c8ac843c146a8c53 Mon Sep 17 00:00:00 2001

From: "H. Nikolaus Schaller" <hns@goldelico.com>

Date: Sat, 3 Oct 2020 16:10:01 +0200

Subject: ARM: dts: pandaboard es: add bluetooth uart for HCI

The wl271 bluetooth uart is connected to uart2.

Setup a serdev uart child and separate bluetooth and uart2 pinmux

from wl12xx pinmux to better group the pins and muxes.

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>

Signed-off-by: Tony Lindgren <tony@atomide.com>

---

 arch/arm/boot/dts/omap4-panda-es.dts | 32 ++++++++++++++++++++++++++++++++

 1 file changed, 32 insertions(+)

diff --git a/arch/arm/boot/dts/omap4-panda-es.dts b/arch/arm/boot/dts/omap4-panda-es.dts

index 6afa8fd7c412d..7c6886cd738f0 100644

--- a/arch/arm/boot/dts/omap4-panda-es.dts

+++ b/arch/arm/boot/dts/omap4-panda-es.dts

@@ -49,6 +49,22 @@

 			OMAP4_IOPAD(0x0fc, PIN_INPUT_PULLUP | MUX_MODE3) /* gpio_113 */

 		>;

 	};

+

+	bt_pins: pinmux_bt_pins {

+		pinctrl-single,pins = <

+			OMAP4_IOPAD(0x06c, PIN_OUTPUT | MUX_MODE3)		/* gpmc_a22.gpio_46 - BTEN */

+			OMAP4_IOPAD(0x072, PIN_OUTPUT_PULLUP | MUX_MODE3)	/* gpmc_a25.gpio_49 - BTWAKEUP */

+		>;

+	};

+

+	uart2_pins: pinmux_uart2_pins {

+		pinctrl-single,pins = <

+			OMAP4_IOPAD(0x118, PIN_INPUT_PULLUP | MUX_MODE0)	/* uart2_cts.uart2_cts - HCI */

+			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 */

+		>;

+	};

 };

 &led_wkgpio_pins {

@@ -80,3 +96,19 @@

 &gpio1_target {

 	 ti,no-reset-on-init;

 };

+

+&wl12xx_gpio {

+	pinctrl-single,pins = <

+		OMAP4_IOPAD(0x066, PIN_OUTPUT | MUX_MODE3)		/* gpmc_a19.gpio_43 */

+		OMAP4_IOPAD(0x070, PIN_OUTPUT_PULLUP | MUX_MODE3)	/* gpmc_a24.gpio_48 */

+	>;

+};

+

+&uart2 {

+	pinctrl-names = "default";

+	pinctrl-0 = <&uart2_pins &bt_pins>;

+	bluetooth: tiwi {

+		compatible = "ti,wl1271-st";

+		enable-gpios = <&gpio2 14 GPIO_ACTIVE_HIGH>;	/* GPIO_46 */

+	};

+};

-- 

cgit 1.2.3-1.el7