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Diffstat (limited to 'arch/arm/boot/dts/sun5i-r8-chip.dts')
-rw-r--r--arch/arm/boot/dts/sun5i-r8-chip.dts69
1 files changed, 69 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/sun5i-r8-chip.dts b/arch/arm/boot/dts/sun5i-r8-chip.dts
index b68a12374b35..c6da5ad37152 100644
--- a/arch/arm/boot/dts/sun5i-r8-chip.dts
+++ b/arch/arm/boot/dts/sun5i-r8-chip.dts
@@ -56,9 +56,11 @@
aliases {
i2c0 = &i2c0;
+ i2c1 = &i2c1;
i2c2 = &i2c2;
serial0 = &uart1;
serial1 = &uart3;
+ spi0 = &spi2;
};
chosen {
@@ -74,6 +76,20 @@
default-state = "on";
};
};
+
+ mmc0_pwrseq: mmc0_pwrseq {
+ compatible = "mmc-pwrseq-simple";
+ pinctrl-names = "default";
+ pinctrl-0 = <&chip_wifi_reg_on_pin>;
+ reset-gpios = <&pio 2 19 GPIO_ACTIVE_LOW>; /* PC19 */
+ };
+
+ onewire {
+ compatible = "w1-gpio";
+ gpios = <&pio 3 2 GPIO_ACTIVE_HIGH>; /* PD2 */
+ pinctrl-names = "default";
+ pinctrl-0 = <&chip_w1_pin>;
+ };
};
&be0 {
@@ -112,6 +128,12 @@
#include "axp209.dtsi"
+&i2c1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c1_pins_a>;
+ status = "disabled";
+};
+
&i2c2 {
pinctrl-names = "default";
pinctrl-0 = <&i2c2_pins_a>;
@@ -131,10 +153,15 @@
};
};
+&mmc0_pins_a {
+ allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
+};
+
&mmc0 {
pinctrl-names = "default";
pinctrl-0 = <&mmc0_pins_a>;
vmmc-supply = <&reg_vcc3v3>;
+ mmc-pwrseq = <&mmc0_pwrseq>;
bus-width = <4>;
non-removable;
status = "okay";
@@ -156,12 +183,26 @@
allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
};
+ chip_wifi_reg_on_pin: chip_wifi_reg_on_pin@0 {
+ allwinner,pins = "PC19";
+ allwinner,function = "gpio_out";
+ allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+ allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
+ };
+
chip_id_det_pin: chip_id_det_pin@0 {
allwinner,pins = "PG2";
allwinner,function = "gpio_in";
allwinner,drive = <SUN4I_PINCTRL_10_MA>;
allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
};
+
+ chip_w1_pin: chip_w1_pin@0 {
+ allwinner,pins = "PD2";
+ allwinner,function = "gpio_in";
+ allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+ allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
+ };
};
&reg_dcdc2 {
@@ -189,6 +230,28 @@
regulator-always-on;
};
+/*
+ * Both LDO3 and LDO4 are used in parallel to power up the WiFi/BT
+ * Chip.
+ *
+ * If those are not enabled, the SDIO part will not enumerate, and
+ * since there's no way currently to pass DT infos to an SDIO device,
+ * we cannot really do better than this ugly hack for now.
+ */
+&reg_ldo3 {
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-wifi-1";
+ regulator-always-on;
+};
+
+&reg_ldo4 {
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-wifi-2";
+ regulator-always-on;
+};
+
&reg_ldo5 {
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
@@ -202,6 +265,12 @@
status = "okay";
};
+&spi2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi2_pins_a>;
+ status = "disabled";
+};
+
&tcon0 {
status = "okay";
};