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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
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