Add support for TPS6594 PMIC devices :
- regulators (bucks and LDOs) on WKUP_I2C0 bus,
- watchdog on MCU_I2C0 bus.
Signed-off-by: Apelete Seketeli <aseket...@baylibre.com>
---
arch/arm/dts/k3-j784s4-r5-evm.dts | 134 ++++++++++++++++++++++++++++++
1 file changed, 134 insertions(+)
diff --git a/arch/arm/dts/k3-j784s4-r5-evm.dts
b/arch/arm/dts/k3-j784s4-r5-evm.dts
index 7350a9be34..27b91100af 100644
--- a/arch/arm/dts/k3-j784s4-r5-evm.dts
+++ b/arch/arm/dts/k3-j784s4-r5-evm.dts
@@ -22,6 +22,27 @@
remoteproc1 = &a72_0;
};
+ evm_12v0: fixedregulator-evm12v0 {
+ /* main supply */
+ compatible = "regulator-fixed";
+ regulator-name = "evm_12v0";
+ regulator-min-microvolt = <12000000>;
+ regulator-max-microvolt = <12000000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ vsys_3v3: fixedregulator-vsys3v3 {
+ /* Output of LM5140 */
+ compatible = "regulator-fixed";
+ regulator-name = "vsys_3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ vin-supply = <&evm_12v0>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
fs_loader0: fs_loader@0 {
compatible = "u-boot,fs-loader";
u-boot,dm-pre-reloc;
@@ -97,6 +118,105 @@
};
};
+&wkup_gpio0 {
+ status = "okay";
+};
+
+&wkup_i2c0 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&wkup_i2c0_pins_default>;
+ clock-frequency = <400000>;
+ tps659413: pmic@48 {
+ compatible = "ti,tps65941-q1";
+ reg = <0x48>;
+ system-power-controller;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pmic_irq_pins_default>;
+ interrupt-parent = <&wkup_gpio0>;
+ interrupts = <39 IRQ_TYPE_EDGE_FALLING>;
+ ti,primary-pmic;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ buck12-supply = <&vsys_3v3>;
+ buck3-supply = <&vsys_3v3>;
+ buck4-supply = <&vsys_3v3>;
+ buck5-supply = <&vsys_3v3>;
+ ldo1-supply = <&vsys_3v3>;
+ ldo2-supply = <&vsys_3v3>;
+ ldo3-supply = <&vsys_3v3>;
+ ldo4-supply = <&vsys_3v3>;
+
+ regulators {
+ bucka12: buck12 {
+ regulator-name = "vdd_ddr_1v1";
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ bucka3: buck3 {
+ regulator-name = "vdd_ram_0v85";
+ regulator-min-microvolt = <850000>;
+ regulator-max-microvolt = <850000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ bucka4: buck4 {
+ regulator-name = "vdd_io_1v8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ bucka5: buck5 {
+ regulator-name = "vdd_mcu_0v85";
+ regulator-min-microvolt = <850000>;
+ regulator-max-microvolt = <850000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ ldoa1: ldo1 {
+ regulator-name = "vdd_mcuio_1v8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ ldoa2: ldo2 {
+ regulator-name = "vdd_mcuio_3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ ldoa3: ldo3 {
+ regulator-name = "vds_dll_0v8";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <800000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ ldoa4: ldo4 {
+ regulator-name = "vda_mcu_1v8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+ };
+ };
+};
+
&main_pmx0 {
u-boot,dm-spl;
@@ -144,6 +264,20 @@
J784S4_WKUP_IOPAD(0x0b4, PIN_OUTPUT, 0) /* (K34)
WKUP_UART0_TXD */
>;
};
+
+ wkup_i2c0_pins_default: wkup_i2c0_pins_default {
+ pinctrl-single,pins = <
+ J784S4_WKUP_IOPAD(0x100, PIN_INPUT, 0) /* (N33)
WKUP_I2C0_SCL */
+ J784S4_WKUP_IOPAD(0x104, PIN_INPUT, 0) /* (N35)
WKUP_I2C0_SDA */
+ >;
+ };
+
+ pmic_irq_pins_default: pmic-irq-pins-default {
+ pinctrl-single,pins = <
+ /* (G33) MCU_OSPI1_CSn1.WKUP_GPIO0_39 */
+ J784S4_WKUP_IOPAD(0x060, PIN_INPUT, 7)
+ >;
+ };
};
&sms {
--
2.34.1
