ARM: dts: dra7-evm: Add wilink8 wlan support

The wilink module is a combo wireless connectivity sdio
card based on Texas Instrument's wl18xx solution. It is a
4-wire, 1.8V, embedded sdio wlan device with an external
irq line and is power-controlled by a gpio-based fixed
regulator.

Add pinmux configuration and IODelay values for MMC4.
On dra7-evm, MMC4 is used for connecting to wilink module.

IODelay data credits to :  Vishal Mahaveer <vishalm@ti.com>
and Sekhar Nori <nsekhar@ti.com>

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Eyal Reizer <eyalr@ti.com>
Signed-off-by: Hari Nagalla <hnagalla@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/boot/dts/dra7-evm-common.dtsi b/arch/arm/boot/dts/dra7-evm-common.dtsi
index 05a7b1a01bc338b0c4981aa620bd9045daf13456..33230c8b295172fccb929bd694a63b143e3043f8 100644 (file)
--- a/arch/arm/boot/dts/dra7-evm-common.dtsi
+++ b/arch/arm/boot/dts/dra7-evm-common.dtsi
@@ -260,3 +260,18 @@
 &pcie1_rc {
        status = "okay";
 };
+
+&mmc4 {
+       bus-width = <4>;
+       cap-power-off-card;
+       keep-power-in-suspend;
+       non-removable;
+       #address-cells = <1>;
+       #size-cells = <0>;
+       wifi@2 {
+               compatible = "ti,wl1835";
+               reg = <2>;
+               interrupt-parent = <&gpio5>;
+               interrupts = <7 IRQ_TYPE_EDGE_RISING>;
+       };
+};

diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts
index 181289a28ca1e8165556145bd609e9d4d0d6b640..704947cbef48c43d893cdf832a3704a516db2efb 100644 (file)
--- a/arch/arm/boot/dts/dra7-evm.dts
+++ b/arch/arm/boot/dts/dra7-evm.dts
@@ -96,6 +96,16 @@
                regulator-boot-on;
        };
 
+       vmmcwl_fixed: fixedregulator-mmcwl {
+               compatible = "regulator-fixed";
+               regulator-name = "vmmcwl_fixed";
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <1800000>;
+               gpio = <&gpio5 8 0>;
+               startup-delay-us = <70000>;
+               enable-active-high;
+       };
+
        extcon_usb2: extcon_usb2 {
                compatible = "linux,extcon-usb-gpio";
                id-gpio = <&pcf_gpio_21 2 GPIO_ACTIVE_HIGH>;
@@ -376,6 +386,21 @@
        pinctrl-5 = <&mmc2_pins_hs200 &mmc2_iodelay_hs200_rev20_conf>;
 };
 
+&mmc4 {
+       status = "okay";
+       vmmc-supply = <&evm_3v6>;
+       vqmmc-supply = <&vmmcwl_fixed>;
+       pinctrl-names = "default-rev11", "default", "hs-rev11", "hs", "sdr12-rev11", "sdr12", "sdr25-rev11", "sdr25";
+       pinctrl-0 = <&mmc4_pins_default &mmc4_iodelay_ds_rev11_conf>;
+       pinctrl-1 = <&mmc4_pins_default &mmc4_iodelay_ds_rev20_conf>;
+       pinctrl-2 = <&mmc4_pins_hs &mmc4_iodelay_sdr12_hs_sdr25_rev11_conf>;
+       pinctrl-3 = <&mmc4_pins_hs &mmc4_iodelay_sdr12_hs_sdr25_rev20_conf>;
+       pinctrl-4 = <&mmc4_pins_sdr12 &mmc4_iodelay_sdr12_hs_sdr25_rev11_conf>;
+       pinctrl-5 = <&mmc4_pins_sdr12 &mmc4_iodelay_sdr12_hs_sdr25_rev20_conf>;
+       pinctrl-6 = <&mmc4_pins_sdr25 &mmc4_iodelay_sdr12_hs_sdr25_rev11_conf>;
+       pinctrl-7 = <&mmc4_pins_sdr25 &mmc4_iodelay_sdr12_hs_sdr25_rev20_conf>;
+};
+
 &cpu0 {
        vdd-supply = <&smps123_reg>;
 };