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
Configure shared transport support for uart3
Signed-off-by: Eyal Reizer <eyalr@xxxxxx>
---
arch/arm/boot/dts/am437x-gp-evm.dts | 114 ++++++++++++++++++++++++++++++++++
include/dt-bindings/pinctrl/am43xx.h | 1 +
2 files changed, 115 insertions(+)
diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts b/arch/arm/boot/dts/am437x-gp-evm.dts
index 26956cb..2b2f715 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>;
@@ -106,9 +116,25 @@
};
};
};
+
+ kim {
+ compatible = "kim";
+ nshutdown_gpio = <48>; /* Bank1, pin16 */
+ dev_name = "/dev/ttyS3";
+ flow_cntrl = <1>;
+ baud_rate = <3000000>;
+ };
+
+ btwilink {
+ compatible = "btwilink";
+ };
};
&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 +366,53 @@
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 +519,10 @@
status = "okay";
};
+&gpio1 {
+ status = "okay";
+};
+
&gpio3 {
status = "okay";
};
@@ -468,6 +545,43 @@
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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