bluetooth HW is WLS1271 chip connected to UART1.
Device tree modifications:
- Pinmux for UART1.
- Pinmux for bluetooth enable GPIO.
Bluetooth enable GPIO is set to enable during startup by setting the
relevant pinmux pin to pull-up.
Signed-off-by: Uri Mashiach <uri.mashiach@xxxxxxxxxxxxxx>
Acked-by: Igor Grinberg <grinberg@xxxxxxxxxxxxxx>
---
arch/arm/boot/dts/am335x-cm-t335.dts | 31 ++++++++++++++++++++++++++++++-
1 file changed, 30 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/am335x-cm-t335.dts b/arch/arm/boot/dts/am335x-cm-t335.dts
index ae2366e..42e9b66 100644
--- a/arch/arm/boot/dts/am335x-cm-t335.dts
+++ b/arch/arm/boot/dts/am335x-cm-t335.dts
@@ -50,7 +50,7 @@
&am33xx_pinmux {
pinctrl-names = "default";
- pinctrl-0 = <>;
+ pinctrl-0 = <&bluetooth_pins>;
i2c0_pins: pinmux_i2c0_pins {
pinctrl-single,pins = <
@@ -121,6 +121,19 @@
>;
};
+ uart1_pins: pinmux_uart1_pins {
+ pinctrl-single,pins = <
+ /* uart1_ctsn.uart1_ctsn */
+ AM33XX_IOPAD(0x978, PIN_INPUT | MUX_MODE0)
+ /* uart1_rtsn.uart1_rtsn */
+ AM33XX_IOPAD(0x97C, PIN_OUTPUT_PULLDOWN | MUX_MODE0)
+ /* uart1_rxd.uart1_rxd */
+ AM33XX_IOPAD(0x980, PIN_INPUT_PULLUP | MUX_MODE0)
+ /* uart1_txd.uart1_txd */
+ AM33XX_IOPAD(0x984, PIN_OUTPUT_PULLDOWN | MUX_MODE0)
+ >;
+ };
+
ecap0_pins: pinmux_ecap0_pins {
pinctrl-single,pins = <
/* eCAP0_in_PWM0_out.eCAP0_in_PWM0_out MODE0 */
@@ -209,6 +222,14 @@
AM33XX_IOPAD(0x904, PIN_INPUT_PULLUP | MUX_MODE0)
>;
};
+
+ /* wl1271 bluetooth */
+ bluetooth_pins: pinmux_bluetooth_pins {
+ pinctrl-single,pins = <
+ /* XDMA_EVENT_INTR0.gpio0_19 - bluetooth enable */
+ AM33XX_IOPAD(0x9b0, PIN_OUTPUT_PULLUP | MUX_MODE7)
+ >;
+ };
};
&uart0 {
@@ -218,6 +239,14 @@
status = "okay";
};
+/* WLS1271 bluetooth */
+&uart1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart1_pins>;
+
+status = "okay";
+};
+
&i2c0 {
pinctrl-names = "default";
pinctrl-0 = <&i2c0_pins>;
--
2.5.0
--
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