enable mmc3 used for wlan and uart3 used for bluetooth
configure the gpios used for wlan and bluetooth controls
add fixed voltage regulator used for wlan power control
Signed-off-by: Eyal Reizer <eyalr@xxxxxx>
---
arch/arm/boot/dts/am437x-gp-evm.dts | 102 ++++++++++++++++++++++++++++++++++
include/dt-bindings/pinctrl/am43xx.h | 1 +
2 files changed, 103 insertions(+)
diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts b/arch/arm/boot/dts/am437x-gp-evm.dts
index 26956cb..6395f57 100644
--- a/arch/arm/boot/dts/am437x-gp-evm.dts
+++ b/arch/arm/boot/dts/am437x-gp-evm.dts
@@ -21,6 +21,7 @@
aliases {
display0 = &lcd0;
+ serial3 = &uart3;
};
vmmcsd_fixed: fixedregulator-sd {
@@ -42,6 +43,15 @@
gpio = <&gpio5 7 GPIO_ACTIVE_HIGH>;
};
+ vmmcwl_fixed: fixedregulator-mmcwl {
+ compatible = "regulator-fixed";
+ regulator-name = "vmmcwl_fixed";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ gpio = <&gpio1 20 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+
backlight {
compatible = "pwm-backlight";
pwms = <&ecap0 0 50000 PWM_POLARITY_INVERTED>;
@@ -109,6 +119,10 @@
};
&am43xx_pinmux {
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&wlan_pins_default>;
+ pinctrl-1 = <&wlan_pins_sleep>;
+
i2c0_pins: i2c0_pins {
pinctrl-single,pins = <
0x188 (PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0) /* i2c0_sda.i2c0_sda */
@@ -340,6 +354,53 @@
0x204 (DS0_PULL_UP_DOWN_EN | INPUT_EN | MUX_MODE7) /* cam1_data7 mode 0*/
>;
};
+
+ mmc3_pins_default: pinmux_mmc3_pins_default {
+ pinctrl-single,pins = <
+ 0x8c (PIN_INPUT_PULLUP | MUX_MODE3) /* gpmc_clk.mmc2_clk */
+ 0x88 (PIN_INPUT_PULLUP | MUX_MODE3) /* gpmc_csn3.mmc2_cmd */
+ 0x44 (PIN_INPUT_PULLUP | MUX_MODE3) /* gpmc_a1.mmc2_dat0 */
+ 0x48 (PIN_INPUT_PULLUP | MUX_MODE3) /* gpmc_a2.mmc2_dat1 */
+ 0x4c (PIN_INPUT_PULLUP | MUX_MODE3) /* gpmc_a3.mmc2_dat2 */
+ 0x78 (PIN_INPUT_PULLUP | MUX_MODE3) /* gpmc_be1n.mmc2_dat3 */
+ >;
+ };
+
+ mmc3_pins_sleep: pinmux_mmc3_pins_sleep {
+ pinctrl-single,pins = <
+ 0x8c (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_clk.mmc2_clk */
+ 0x88 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_csn3.mmc2_cmd */
+ 0x44 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_a1.mmc2_dat0 */
+ 0x48 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_a2.mmc2_dat1 */
+ 0x4c (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_a3.mmc2_dat2 */
+ 0x78 (PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_be1n.mmc2_dat3 */
+ >;
+ };
+
+ wlan_pins_default: pinmux_wlan_pins_default {
+ pinctrl-single,pins = <
+ 0x50 (PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* gpmc_a4.gpio1_20 WL_EN */
+ 0x5c (PIN_INPUT | WAKEUP_ENABLE | MUX_MODE7) /* gpmc_a7.gpio1_23 WL_IRQ*/
+ 0x40 (PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* gpmc_a0.gpio1_16 BT_EN*/
+ >;
+ };
+
+ wlan_pins_sleep: pinmux_wlan_pins_sleep {
+ pinctrl-single,pins = <
+ 0x50 (PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* gpmc_a4.gpio1_20 WL_EN */
+ 0x5c (PIN_INPUT | WAKEUP_ENABLE | MUX_MODE7) /* gpmc_a7.gpio1_23 WL_IRQ*/
+ 0x40 (PIN_OUTPUT_PULLUP | MUX_MODE7) /* gpmc_a0.gpio1_16 BT_EN*/
+ >;
+ };
+
+ uart3_pins: uart3_pins {
+ pinctrl-single,pins = <
+ 0x228 (PIN_INPUT | MUX_MODE0) /* uart3_rxd.uart3_rxd */
+ 0x22c (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* uart3_txd.uart3_txd */
+ 0x230 (PIN_INPUT_PULLUP | MUX_MODE0) /* uart3_ctsn.uart3_ctsn */
+ 0x234 (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* uart3_rtsn.uart3_rtsn */
+ >;
+ };
};
&i2c0 {
@@ -446,6 +507,10 @@
status = "okay";
};
+&gpio1 {
+ status = "okay";
+};
+
&gpio3 {
status = "okay";
};
@@ -468,6 +533,43 @@
cd-gpios = <&gpio0 6 GPIO_ACTIVE_HIGH>;
};
+&mmc3 {
+ status = "okay";
+ /* these are on the crossbar and are outlined in the
+ xbar-event-map element */
+ dmas = <&edma 30
+ &edma 31>;
+ dma-names = "tx", "rx";
+ vmmc-supply = <&vmmcwl_fixed>;
+ bus-width = <4>;
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&mmc3_pins_default>;
+ pinctrl-1 = <&mmc3_pins_sleep>;
+ cap-power-off-card;
+ keep-power-in-suspend;
+ ti,non-removable;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+ wlcore: wlcore@0 {
+ compatible = "ti,wl1835";
+ reg = <2>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <23 IRQ_TYPE_LEVEL_HIGH>;
+ };
+};
+
+&edma {
+ ti,edma-xbar-event-map = /bits/ 16 <1 30
+ 2 31>;
+};
+
+&uart3 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart3_pins>;
+};
+
&usb2_phy1 {
status = "okay";
};
diff --git a/include/dt-bindings/pinctrl/am43xx.h b/include/dt-bindings/pinctrl/am43xx.h
index 5f4d0189..b00bbc9 100644
--- a/include/dt-bindings/pinctrl/am43xx.h
+++ b/include/dt-bindings/pinctrl/am43xx.h
@@ -21,6 +21,7 @@
#define SLEWCTRL_SLOW (1 << 19)
#define SLEWCTRL_FAST 0
#define DS0_PULL_UP_DOWN_EN (1 << 27)
+#define WAKEUP_ENABLE (1 << 29)
#define PIN_OUTPUT (PULL_DISABLE)
#define PIN_OUTPUT_PULLUP (PULL_UP)
--
1.7.9.5
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