ARM: dt: t30 cardhu: set pinmux and power for wlan

Configure pinmux as required for WiFi.
Enable the SDHCI1 controller for a02 and a04 board, which is connected to the
WiFi module.
For now, always enable the regulator that provides power to the Wifi module.

Signed-off-by: Wei Ni <wni@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>

diff --git a/arch/arm/boot/dts/tegra30-cardhu-a02.dts b/arch/arm/boot/dts/tegra30-cardhu-a02.dts
index dd4222f..adc88aa 100644 (file)
--- a/arch/arm/boot/dts/tegra30-cardhu-a02.dts
+++ b/arch/arm/boot/dts/tegra30-cardhu-a02.dts
@@ -83,5 +83,11 @@
                        gpio = <&gpio 83 0>; /* GPIO PK3 */
                };
        };
+
+       sdhci@78000400 {
+               status = "okay";
+               power-gpios = <&gpio 28 0>; /* gpio PD4 */
+               bus-width = <4>;
+       };
 };
 

diff --git a/arch/arm/boot/dts/tegra30-cardhu-a04.dts b/arch/arm/boot/dts/tegra30-cardhu-a04.dts
index 0828f09..08163e1 100644 (file)
--- a/arch/arm/boot/dts/tegra30-cardhu-a04.dts
+++ b/arch/arm/boot/dts/tegra30-cardhu-a04.dts
@@ -95,4 +95,10 @@
                        gpio = <&gpio 232 0>; /* GPIO PDD0 */
                };
        };
+
+       sdhci@78000400 {
+               status = "okay";
+               power-gpios = <&gpio 27 0>; /* gpio PD3 */
+               bus-width = <4>;
+       };
 };

diff --git a/arch/arm/boot/dts/tegra30-cardhu.dtsi b/arch/arm/boot/dts/tegra30-cardhu.dtsi
index b1271a8..b245e6c 100644 (file)
--- a/arch/arm/boot/dts/tegra30-cardhu.dtsi
+++ b/arch/arm/boot/dts/tegra30-cardhu.dtsi
@@ -52,6 +52,22 @@
                                nvidia,pull = <2>;
                                nvidia,tristate = <0>;
                        };
+                       sdmmc3_clk_pa6 {
+                               nvidia,pins = "sdmmc3_clk_pa6";
+                               nvidia,function = "sdmmc3";
+                               nvidia,pull = <0>;
+                               nvidia,tristate = <0>;
+                       };
+                       sdmmc3_cmd_pa7 {
+                               nvidia,pins =   "sdmmc3_cmd_pa7",
+                                               "sdmmc3_dat0_pb7",
+                                               "sdmmc3_dat1_pb6",
+                                               "sdmmc3_dat2_pb5",
+                                               "sdmmc3_dat3_pb4";
+                               nvidia,function = "sdmmc3";
+                               nvidia,pull = <2>;
+                               nvidia,tristate = <0>;
+                       };
                        sdmmc4_clk_pcc4 {
                                nvidia,pins =   "sdmmc4_clk_pcc4",
                                                "sdmmc4_rst_n_pcc3";
@@ -81,6 +97,15 @@
                                nvidia,pull = <0>;
                                nvidia,tristate = <0>;
                        };
+                       sdio3 {
+                               nvidia,pins = "drive_sdio3";
+                               nvidia,high-speed-mode = <0>;
+                               nvidia,schmitt = <0>;
+                               nvidia,pull-down-strength = <46>;
+                               nvidia,pull-up-strength = <42>;
+                               nvidia,slew-rate-rising = <1>;
+                               nvidia,slew-rate-falling = <1>;
+                       };
                };
        };
 
@@ -384,6 +409,8 @@
                        regulator-name = "vdd_com";
                        regulator-min-microvolt = <3300000>;
                        regulator-max-microvolt = <3300000>;
+                       regulator-always-on;
+                       regulator-boot-on;
                        enable-active-high;
                        gpio = <&gpio 24 0>; /* gpio PD0 */
                        vin-supply = <&sys_3v3_reg>;