diff --git a/arch/arm/dts/k3-j721e-r5-common-proc-board.dts b/arch/arm/dts/k3-j721e-r5-common-proc-board.dts
index 2250d16e78..3a9167fa3c 100644
--- a/arch/arm/dts/k3-j721e-r5-common-proc-board.dts
+++ b/arch/arm/dts/k3-j721e-r5-common-proc-board.dts
@@ -268,10 +268,119 @@
 			};
 		};
 	};
+
+	/* PMIC for PM1 SoM, unused on PM2 */
+	tps65917: tps65917@58 {
+		reg = <0x58>;
+		compatible = "ti,tps65917";
+		interrupt-controller;
+		#interrupt-cells = <2>;
+		u-boot,dm-spl;
+
+		ti,system-power-controller;
+
+		tps65917_pmic {
+			compatible = "ti,tps65917-pmic";
+			u-boot,dm-spl;
+
+			tps65917_regulators: regulators {
+				u-boot,dm-spl;
+				smps12_reg: smps12 {
+					/* VDD_CPU_AVS_REG */
+					regulator-name = "smps1";
+					regulator-min-microvolt = <800000>;
+					regulator-max-microvolt = <1250000>;
+					regulator-always-on;
+					regulator-boot-on;
+					u-boot,dm-spl;
+				};
+
+				smps3_reg: smps3 {
+					/* V917_SMPS3_1V1 */
+					regulator-name = "smps3";
+					regulator-min-microvolt = <1100000>;
+					regulator-max-microvolt = <1100000>;
+					regulator-boot-on;
+					regulator-always-on;
+					u-boot,dm-spl;
+				};
+
+				smps4_reg: smps4 {
+					/* VDD_CORE_RAM_0V85_REG */
+					regulator-name = "smps4";
+					regulator-min-microvolt = <850000>;
+					regulator-max-microvolt = <850000>;
+					regulator-always-on;
+					regulator-boot-on;
+					u-boot,dm-spl;
+				};
+
+				smps5_reg: smps5 {
+					/* VDD_CPU_RAM_0V85_REG */
+					regulator-name = "smps5";
+					regulator-min-microvolt = <850000>;
+					regulator-max-microvolt = <850000>;
+					regulator-boot-on;
+					regulator-always-on;
+					u-boot,dm-spl;
+				};
+
+				ldo1_reg: ldo1 {
+					/* LDO1_OUT --> VDD_SD_DV_REG  */
+					regulator-name = "ldo1";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <3300000>;
+					regulator-always-on;
+					regulator-boot-on;
+					regulator-allow-bypass;
+					u-boot,dm-spl;
+				};
+
+				ldo2_reg: ldo2 {
+					/* VDA_USB_3V3_REG */
+					regulator-name = "ldo2";
+					regulator-min-microvolt = <3300000>;
+					regulator-max-microvolt = <3300000>;
+					regulator-allow-bypass;
+					u-boot,dm-spl;
+				};
+
+				ldo3_reg: ldo3 {
+					/* VDA_PLL_1V8_REG */
+					regulator-name = "ldo3";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-boot-on;
+					regulator-always-on;
+					u-boot,dm-spl;
+				};
+
+				ldo4_reg: ldo4 {
+					/* V917_LDO4_1V8 */
+					regulator-name = "ldo4";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-boot-on;
+					u-boot,dm-spl;
+				};
+
+				ldo5_reg: ldo5 {
+					/* VPP_EFUSE_1V8 */
+					regulator-name = "ldo5";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+					regulator-boot-on;
+					u-boot,dm-spl;
+				};
+			};
+		};
+	};
 };
 
 &wkup_vtm0 {
 	vdd-supply-2 = <&buck12_reg>;
+	som1-supply-2 = <&smps12_reg>;
 	u-boot,dm-spl;
 };
 
diff --git a/arch/arm/mach-k3/j721e_init.c b/arch/arm/mach-k3/j721e_init.c
index 0645d97cc3..9c572a091d 100644
--- a/arch/arm/mach-k3/j721e_init.c
+++ b/arch/arm/mach-k3/j721e_init.c
@@ -19,8 +19,10 @@
 #include <dm.h>
 #include <dm/uclass-internal.h>
 #include <dm/pinctrl.h>
+#include <fdt_support.h>
 #include <mmc.h>
 #include <remoteproc.h>
+#include "../../../board/ti/common/board_detect.h"
 
 #ifdef CONFIG_SPL_BUILD
 #ifdef CONFIG_K3_LOAD_SYSFW
@@ -137,6 +139,10 @@ static void store_boot_info_from_rom(void)
 
 void board_init_f(ulong dummy)
 {
+#if defined(CONFIG_CPU_V7R) && defined(CONFIG_K3_AVS0)
+	int offset;
+	u32 val, dflt = 0;
+#endif
 #if defined(CONFIG_K3_J721E_DDRSS) || defined(CONFIG_K3_LOAD_SYSFW)
 	struct udevice *dev;
 	int ret;
@@ -218,6 +224,15 @@ void board_init_f(ulong dummy)
 		do_board_detect();
 
 #if defined(CONFIG_CPU_V7R) && defined(CONFIG_K3_AVS0)
+	if (board_ti_k3_is("J721EX-PM1-SOM")) {
+		offset = fdt_node_offset_by_compatible(gd->fdt_blob, -1,
+						       "ti,am654-vtm");
+		val = fdt_getprop_u32_default_node(gd->fdt_blob, offset, 0,
+						   "som1-supply-2", dflt);
+		do_fixup_by_compat_u32((void *)gd->fdt_blob, "ti,am654-vtm",
+				       "vdd-supply-2", val, 0);
+	}
+
 	ret = uclass_get_device_by_driver(UCLASS_MISC, DM_GET_DRIVER(k3_avs),
 					  &dev);
 	if (ret)
diff --git a/configs/j721e_evm_r5_defconfig b/configs/j721e_evm_r5_defconfig
index 0881d56035..3558f954d1 100644
--- a/configs/j721e_evm_r5_defconfig
+++ b/configs/j721e_evm_r5_defconfig
@@ -115,9 +115,13 @@ CONFIG_PINCTRL_SINGLE=y
 CONFIG_POWER_DOMAIN=y
 CONFIG_TI_POWER_DOMAIN=y
 CONFIG_DM_PMIC=y
+CONFIG_PMIC_PALMAS=y
+CONFIG_SPL_PMIC_PALMAS=y
 CONFIG_PMIC_TPS65941=y
 CONFIG_DM_REGULATOR=y
 CONFIG_SPL_DM_REGULATOR=y
+CONFIG_DM_REGULATOR_PALMAS=y
+CONFIG_SPL_DM_REGULATOR_PALMAS=y
 CONFIG_DM_REGULATOR_TPS65941=y
 CONFIG_K3_SYSTEM_CONTROLLER=y
 CONFIG_REMOTEPROC_TI_K3_ARM64=y