Configure pinmux as required for WiFi.
Enable the SDHCI1 controller. This is connectted to the WiFi module.
For now, always enable the regulator that provides power to the Wifi module.
Signed-off-by: Wei Ni <wni@xxxxxxxxxx>
---
arch/arm/boot/dts/tegra30-cardhu.dtsi | 32 ++++++++++++++++++++++++++++++++
1 files changed, 32 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/tegra30-cardhu.dtsi b/arch/arm/boot/dts/tegra30-cardhu.dtsi
index 4794693..ed9b530 100644
--- 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>;
+ };
};
};
@@ -292,6 +317,11 @@
bus-width = <4>;
};
+ sdhci@78000400 {
+ status = "okay";
+ power-gpios = <&gpio 28 0>; /* gpio PD4 */
+ };
+
sdhci@78000600 {
status = "okay";
bus-width = <8>;
@@ -407,6 +437,8 @@
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>;
--
1.7.1
--
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