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>

diff --git a/arch/arm/boot/dts/omap4-panda-es.dts b/arch/arm/boot/dts/omap4-panda-es.dts
index 6afa8fd..7c6886c 100644 (file)
--- 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 */
+       };
+};