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

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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>
This commit is contained in:
H. Nikolaus Schaller 2020-10-03 16:10:01 +02:00 • committed by Tony Lindgren
parent df9dbaf2c4
commit b86516452c
1 changed files with 32 additions and 0 deletions
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32
arch/arm/boot/dts/omap4-panda-es.dts
View file

@ -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 */
};
};