ARM: dts: am437x-sk-evm: add wilink8 support

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@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/boot/dts/am437x-sk-evm.dts b/arch/arm/boot/dts/am437x-sk-evm.dts
index 4118802..440351a 100644 (file)
--- 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 {
@@ -418,6 +435,62 @@
                        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 {
@@ -581,6 +654,10 @@
        status = "okay";
 };
 
+&gpio4 {
+       status = "okay";
+};
+
 &gpio5 {
        status = "okay";
 };
@@ -595,6 +672,44 @@
        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";
 };