Add DTS node for LP87334E PMIC and two TPS6287x high current buck
converters.
LP87334E is responsible for supplying power to the MCU and MAIN domains
as well as to LPDDR4. The two TPS6287x supply power to the MAIN
domain for AVS and other core supplies.
Signed-off-by: Neha Malcom Francis <[email protected]>
Link: https://www.ti.com/lit/pdf/slda060
---
.../boot/dts/ti/k3-am68-sk-base-board.dts | 76 +++++++++++++++++++
1 file changed, 76 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts b/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts
index d743f023cdd9..90dbe31c5b81 100644
--- a/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts
@@ -414,6 +414,82 @@ &wkup_uart0 {
pinctrl-0 = <&wkup_uart0_pins_default>;
};
+&wkup_i2c0 {
+ bootph-all;
+ clock-frequency = <400000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&wkup_i2c0_pins_default>;
+ status = "okay";
+
+ lp8733: pmic@60 {
+ compatible = "ti,lp8733";
+ reg = <0x60>;
+ buck0-in-supply = <&vsys_3v3>;
+ buck1-in-supply = <&vsys_3v3>;
+ ldo0-in-supply = <&vsys_3v3>;
+ ldo1-in-supply = <&vsys_3v3>;
+
+ lp8733_regulators: regulators {
+ lp8733_buck0_reg: buck0 {
+ /* FB_B0 -> LP8733-BUCK1 - VDD_MCU_0V85 */
+ regulator-name = "lp8733-buck0";
+ regulator-min-microvolt = <850000>;
+ regulator-max-microvolt = <850000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ lp8733_buck1_reg: buck1 {
+ /* FB_B1 -> LP8733-BUCK2 - VDD_DDR_1V1 */
+ regulator-name = "lp8733-buck1";
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ lp8733_ldo0_reg: ldo0 {
+ /* LDO0 -> LP8733-LDO1 - VDA_DLL_0V8 */
+ regulator-name = "lp8733-ldo0";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <800000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ lp8733_ldo1_reg: ldo1 {
+ /* LDO1 -> LP8733-LDO2 - VDA_LN_1V8 */
+ regulator-name = "lp8733-ldo1";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+ };
+ };
+
+ tps62873a: regulator@40 {
+ compatible = "ti,tps62873";
+ reg = <0x40>;
+ bootph-pre-ram;
+ regulator-name = "VDD_CPU_AVS";
+ regulator-min-microvolt = <600000>;
+ regulator-max-microvolt = <900000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ tps62873b: regulator@43 {
+ compatible = "ti,tps62873";
+ reg = <0x43>;
+ regulator-name = "VDD_CORE_0V8";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <800000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+};
+
&mcu_uart0 {
status = "okay";
pinctrl-names = "default";
--
2.34.1