enable mmc3 used for wlan and uart1 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>
---
Changes since V1:
- Fix wlcore node number to @2
- Capialaize ARM in subject line.
arch/arm/boot/dts/am437x-sk-evm.dts | 115 ++++++++++++++++++++++++++++++++++++
1 file changed, 115 insertions(+)
diff --git a/arch/arm/boot/dts/am437x-sk-evm.dts b/arch/arm/boot/dts/am437x-sk-evm.dts
index 16d9db0..afffdb1 100644
--- a/arch/arm/boot/dts/am437x-sk-evm.dts
+++ b/arch/arm/boot/dts/am437x-sk-evm.dts
@@ -15,6 +15,7 @@
#include <dt-bindings/pwm/pwm.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
+#include <dt-bindings/interrupt-controller/irq.h>
/ {
model = "TI AM437x SK EVM";
@@ -158,6 +159,22 @@
};
};
};
+
+ vmmcwl_fixed: fixedregulator-mmcwl {
+ /*
+ * WL_EN is not SDIO standard compliant. It is an out of band
+ * signal and hard to be dealt with in a standard way by the
+ * SDIO core driver.
+ * So modelling the WL_EN line as a regulator was a natural
+ * choice as the MMC core already deals with MMC supplies.
+ */
+ compatible = "regulator-fixed";
+ regulator-name = "vmmcwl_fixed";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ gpio = <&gpio4 8 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
};
&am43xx_pinmux {
@@ -424,6 +441,62 @@
AM4372_IOPAD(0xac4, PIN_OUTPUT | MUX_MODE0) /* usb0_drvvbus.usb0_drvvbus */
>;
};
+
+ mmc3_pins_default: pinmux_mmc3_pins_default {
+ pinctrl-single,pins = <
+ AM4372_IOPAD(0x9f0, PIN_INPUT_PULLUP | MUX_MODE3) /* (AD21) cam1_data2.mmc2_clk */
+ AM4372_IOPAD(0x9f4, PIN_INPUT_PULLUP | MUX_MODE3) /* (AE22) cam1_data3.mmc2_cmd */
+ AM4372_IOPAD(0x9f8, PIN_INPUT_PULLUP | MUX_MODE3) /* (AD22) cam1_data4.mmc2_dat0 */
+ AM4372_IOPAD(0x9fc, PIN_INPUT_PULLUP | MUX_MODE3) /* (AE23) cam1_data5.mmc2_dat1 */
+ AM4372_IOPAD(0xa00, PIN_INPUT_PULLUP | MUX_MODE3) /* (AD23) cam1_data6.mmc2_dat2 */
+ AM4372_IOPAD(0xa04, PIN_INPUT_PULLUP | MUX_MODE3) /* (AE24) cam1_data7.mmc2_dat3 */
+ >;
+ };
+
+ mmc3_pins_sleep: pinmux_mmc3_pins_sleep {
+ pinctrl-single,pins = <
+ AM4372_IOPAD(0x9f0, PIN_INPUT_PULLDOWN | MUX_MODE7) /* (AD21) cam1_data2.mmc2_clk */
+ AM4372_IOPAD(0x9f4, PIN_INPUT_PULLDOWN | MUX_MODE7) /* (AE22) cam1_data3.mmc2_cmd */
+ AM4372_IOPAD(0x9f8, PIN_INPUT_PULLDOWN | MUX_MODE7) /* (AD22) cam1_data4.mmc2_dat0 */
+ AM4372_IOPAD(0x9fc, PIN_INPUT_PULLDOWN | MUX_MODE7) /* (AE23) cam1_data5.mmc2_dat1 */
+ AM4372_IOPAD(0xa00, PIN_INPUT_PULLDOWN | MUX_MODE7) /* (AD23) cam1_data6.mmc2_dat2 */
+ AM4372_IOPAD(0xa04, PIN_INPUT_PULLDOWN | MUX_MODE7) /* (AE24) cam1_data7.mmc2_dat3 */
+ >;
+ };
+
+ wlan_pins_default: pinmux_wlan_pins_default {
+ pinctrl-single,pins = <
+ AM4372_IOPAD(0x9d0, PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* cam1_data8.gpio4_8 WL_EN */
+ AM4372_IOPAD(0x9e4, PIN_INPUT | WAKEUP_ENABLE | MUX_MODE7) /* cam1_wen.gpio4_13 WL_IRQ */
+ >;
+ };
+
+ wlan_pins_sleep: pinmux_wlan_pins_sleep {
+ pinctrl-single,pins = <
+ AM4372_IOPAD(0x9d0, PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* cam1_data8.gpio4_8 WL_EN */
+ AM4372_IOPAD(0x9e4, PIN_INPUT | WAKEUP_ENABLE | MUX_MODE7) /* cam1_wen.gpio4_13 WL_IRQ */
+ >;
+ };
+
+ uart1_bt_pins_default: pinmux_uart1_bt_pins_default {
+ pinctrl-single,pins = <
+ AM4372_IOPAD(0x980, PIN_INPUT | MUX_MODE0) /* uart1_rxd.uart1_rxd */
+ AM4372_IOPAD(0x984, PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* uart1_txd.uart1_txd */
+ AM4372_IOPAD(0x978, PIN_INPUT_PULLUP | MUX_MODE0) /* uart1_ctsn.uart1_ctsn */
+ AM4372_IOPAD(0x97c, PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* uart1_rtsn.uart1_rtsn */
+ AM4372_IOPAD(0x9cc, PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* cam1_data9.gpio4_7 BT_EN */
+ >;
+ };
+
+ uart1_bt_pins_sleep: pinmux_uart1_bt_pins_sleep {
+ pinctrl-single,pins = <
+ AM4372_IOPAD(0x980, PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* uart1_rxd.uart1_rxd */
+ AM4372_IOPAD(0x984, PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* uart1_txd.uart1_txd */
+ AM4372_IOPAD(0x978, PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* uart1_ctsn.uart1_ctsn */
+ AM4372_IOPAD(0x97c, PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* uart1_rtsn.uart1_rtsn */
+ AM4372_IOPAD(0x9cc, PIN_OUTPUT_PULLUP | MUX_MODE7) /* cam1_data9.gpio4_7 BT_EN */
+ >;
+ };
};
&i2c0 {
@@ -606,6 +679,10 @@
status = "okay";
};
+&gpio4 {
+ status = "okay";
+};
+
&gpio5 {
status = "okay";
};
@@ -620,6 +697,44 @@
cd-gpios = <&gpio0 6 GPIO_ACTIVE_LOW>;
};
+&uart1 {
+ status = "okay";
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&uart1_bt_pins_default>;
+ pinctrl-1 = <&uart1_bt_pins_sleep>;
+};
+
+&mmc3 {
+ status = "okay";
+ /*
+ * these are on the crossbar and are outlined in the
+ * xbar-event-map element
+ */
+ dmas = <&edma_xbar 30 0 1>,
+ <&edma_xbar 31 0 2>;
+ 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@2 {
+ compatible = "ti,wl1835";
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&wlan_pins_default>;
+ pinctrl-1 = <&wlan_pins_sleep>;
+ reg = <2>;
+ interrupt-parent = <&gpio4>;
+ interrupts = <13 IRQ_TYPE_LEVEL_HIGH>;
+ };
+};
+
&usb2_phy1 {
status = "okay";
};
--
2.7.4
--
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