Device tree modifications:
- Pinmux for SPI0 and WiFi GPIOs.
- SPI0 node with wlcore as a child node.
Cc: Tony Lindgren <tony@xxxxxxxxxxx>
Signed-off-by: Uri Mashiach <uri.mashiach@xxxxxxxxxxxxxx>
---
v1 -> v2: Replace interrupts and interrupt-parent with interrupts-extended.
v2 -> v3: Move the pinctrl-0 = <&wifi_pins> to the wlcore node.
v3 -> v4: replace interrupts-extended with interrupts and interrupt-parent. (revert v2 modification).
According to Rob Herring and Documentation/devicetree/bindings/interrupt-controller/interrupts.txt,
interrupts-extended should only be used when a device has multiple interrupt parents.
arch/arm/boot/dts/am335x-cm-t335.dts | 55 ++++++++++++++++++++++++++++++++++++
1 file changed, 55 insertions(+)
diff --git a/arch/arm/boot/dts/am335x-cm-t335.dts b/arch/arm/boot/dts/am335x-cm-t335.dts
index 42e9b66..65f1099 100644
--- a/arch/arm/boot/dts/am335x-cm-t335.dts
+++ b/arch/arm/boot/dts/am335x-cm-t335.dts
@@ -11,6 +11,7 @@
/dts-v1/;
#include "am33xx.dtsi"
+#include <dt-bindings/interrupt-controller/irq.h>
/ {
model = "CompuLab CM-T335";
@@ -40,6 +41,15 @@
regulator-max-microvolt = <3300000>;
};
+ /* Regulator for WiFi */
+ vwlan_fixed: fixedregulator@2 {
+ compatible = "regulator-fixed";
+ regulator-name = "vwlan_fixed";
+ gpio = <&gpio0 20 GPIO_ACTIVE_HIGH>; /* gpio0_20 */
+ enable-active-high;
+ regulator-boot-off;
+ };
+
backlight {
compatible = "pwm-backlight";
pwms = <&ecap0 0 50000 0>;
@@ -223,6 +233,21 @@
>;
};
+ spi0_pins: pinmux_spi0_pins {
+ pinctrl-single,pins = <
+ /* spi0_sclk.spi0_sclk */
+ AM33XX_IOPAD(0x950, PIN_INPUT | MUX_MODE0)
+ /* spi0_d0.spi0_d0 */
+ AM33XX_IOPAD(0x954, PIN_OUTPUT_PULLUP | MUX_MODE0)
+ /* spi0_d1.spi0_d1 */
+ AM33XX_IOPAD(0x958, PIN_INPUT | MUX_MODE0)
+ /* spi0_cs0.spi0_cs0 */
+ AM33XX_IOPAD(0x95C, PIN_OUTPUT | MUX_MODE0)
+ /* spi0_cs1.spi0_cs1 */
+ AM33XX_IOPAD(0x960, PIN_OUTPUT | MUX_MODE0)
+ >;
+ };
+
/* wl1271 bluetooth */
bluetooth_pins: pinmux_bluetooth_pins {
pinctrl-single,pins = <
@@ -230,6 +255,16 @@
AM33XX_IOPAD(0x9b0, PIN_OUTPUT_PULLUP | MUX_MODE7)
>;
};
+
+ /* wl1271 WiFi */
+ wifi_pins: pinmux_wifi_pins {
+ pinctrl-single,pins = <
+ /* EMU1.gpio3_8 - WiFi IRQ */
+ AM33XX_IOPAD(0x9e8, PIN_INPUT_PULLUP | MUX_MODE7)
+ /* XDMA_EVENT_INTR1.gpio0_20 - WiFi enable */
+ AM33XX_IOPAD(0x9b4, PIN_OUTPUT | MUX_MODE7)
+ >;
+ };
};
&uart0 {
@@ -394,3 +429,23 @@ status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&mmc1_pins>;
};
+
+&spi0 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi0_pins>;
+ ti,pindir-d0-out-d1-in = <1>;
+ /* WLS1271 WiFi */
+ wlcore: wlcore@1 {
+ compatible = "ti,wl1271";
+ pinctrl-names = "default";
+ pinctrl-0 = <&wifi_pins>;
+ reg = <1>;
+ spi-max-frequency = <48000000>;
+ clock-xtal;
+ ref-clock-frequency = <38400000>;
+ interrupt-parent = <&gpio3>;
+ interrupts = <8 IRQ_TYPE_LEVEL_HIGH>;
+ vwlan-supply = <&vwlan_fixed>;
+ };
+};
--
2.5.0
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