diff --git a/arch/arm/mach-stm32mp/include/mach/stm32.h b/arch/arm/mach-stm32mp/include/mach/stm32.h
index 88126b8..f063600 100644
--- a/arch/arm/mach-stm32mp/include/mach/stm32.h
+++ b/arch/arm/mach-stm32mp/include/mach/stm32.h
@@ -37,7 +37,6 @@
 /* enumerated used to identify the SYSCON driver instance */
 enum {
 	STM32MP_SYSCON_UNKNOWN,
-	STM32MP_SYSCON_PWR,
 	STM32MP_SYSCON_SYSCFG,
 };
 
diff --git a/arch/arm/mach-stm32mp/pwr_regulator.c b/arch/arm/mach-stm32mp/pwr_regulator.c
index 4559ef5..b52e1e8 100644
--- a/arch/arm/mach-stm32mp/pwr_regulator.c
+++ b/arch/arm/mach-stm32mp/pwr_regulator.c
@@ -6,8 +6,8 @@
 #include <common.h>
 #include <dm.h>
 #include <errno.h>
-#include <regmap.h>
 #include <syscon.h>
+#include <asm/io.h>
 #include <dm/device_compat.h>
 #include <linux/err.h>
 #include <power/pmic.h>
@@ -28,7 +28,7 @@
 };
 
 struct stm32mp_pwr_priv {
-	struct regmap *regmap;
+	fdt_addr_t base;
 };
 
 static int stm32mp_pwr_write(struct udevice *dev, uint reg,
@@ -40,7 +40,9 @@
 	if (len != 4)
 		return -EINVAL;
 
-	return regmap_write(priv->regmap, STM32MP_PWR_CR3, val);
+	writel(val, priv->base + STM32MP_PWR_CR3);
+
+	return 0;
 }
 
 static int stm32mp_pwr_read(struct udevice *dev, uint reg, uint8_t *buff,
@@ -51,21 +53,18 @@
 	if (len != 4)
 		return -EINVAL;
 
-	return regmap_read(priv->regmap, STM32MP_PWR_CR3, (u32 *)buff);
+	*(u32 *)buff = readl(priv->base + STM32MP_PWR_CR3);
+
+	return 0;
 }
 
 static int stm32mp_pwr_ofdata_to_platdata(struct udevice *dev)
 {
 	struct stm32mp_pwr_priv *priv = dev_get_priv(dev);
-	struct regmap *regmap;
 
-	regmap = syscon_get_regmap_by_driver_data(STM32MP_SYSCON_PWR);
-	if (IS_ERR(regmap)) {
-		pr_err("%s: unable to find regmap (%ld)\n", __func__,
-		       PTR_ERR(regmap));
-		return PTR_ERR(regmap);
-	}
-	priv->regmap = regmap;
+	priv->base = dev_read_addr(dev);
+	if (priv->base == FDT_ADDR_T_NONE)
+		return -EINVAL;
 
 	return 0;
 }
diff --git a/arch/arm/mach-stm32mp/syscon.c b/arch/arm/mach-stm32mp/syscon.c
index 6070837..3e61ce4 100644
--- a/arch/arm/mach-stm32mp/syscon.c
+++ b/arch/arm/mach-stm32mp/syscon.c
@@ -9,7 +9,6 @@
 #include <asm/arch/stm32.h>
 
 static const struct udevice_id stm32mp_syscon_ids[] = {
-	{ .compatible = "st,stm32mp1-pwr", .data = STM32MP_SYSCON_PWR },
 	{ .compatible = "st,stm32mp157-syscfg",
 	  .data = STM32MP_SYSCON_SYSCFG },
 	{ }