4 files changed, 67 insertions, 21 deletions

diff --git a/board/st/common/Kconfig b/board/st/common/Kconfig
index 5efac658cf4..94ec806949b 100644
--- a/board/st/common/Kconfig
+++ b/board/st/common/Kconfig
@@ -1,7 +1,7 @@
 config CMD_STBOARD
 	bool "stboard - command for OTP board information"
 	depends on ARCH_STM32MP
-	default y if TARGET_ST_STM32MP25X || TARGET_ST_STM32MP15X || TARGET_ST_STM32MP13X
+	default y if TARGET_ST_STM32MP13X || TARGET_ST_STM32MP15X || TARGET_ST_STM32MP23X || TARGET_ST_STM32MP25X
 	help
 	  This compile the stboard command to
 	  read and write the board in the OTP.
diff --git a/board/st/common/stpmic1.c b/board/st/common/stpmic1.c
index 45c2bb5bcea..b46f89dacb9 100644
--- a/board/st/common/stpmic1.c
+++ b/board/st/common/stpmic1.c
@@ -14,8 +14,19 @@
 #include <power/pmic.h>
 #include <power/stpmic1.h>
 
+static bool is_stm32mp13xx(void)
+{
+	if (!IS_ENABLED(CONFIG_STM32MP13X))
+		return false;
+
+	return of_machine_is_compatible("st,stm32mp131") ||
+	       of_machine_is_compatible("st,stm32mp133") ||
+	       of_machine_is_compatible("st,stm32mp135");
+}
+
 int board_ddr_power_init(enum ddr_type ddr_type)
 {
+	bool is_mp13 = is_stm32mp13xx();
 	struct udevice *dev;
 	bool buck3_at_1800000v = false;
 	int ret;
@@ -30,18 +41,21 @@ int board_ddr_power_init(enum ddr_type ddr_type)
 	switch (ddr_type) {
 	case STM32MP_DDR3:
 		/* VTT = Set LDO3 to sync mode */
-		ret = pmic_reg_read(dev, STPMIC1_LDOX_MAIN_CR(STPMIC1_LDO3));
-		if (ret < 0)
-			return ret;
-
-		ret &= ~STPMIC1_LDO3_MODE;
-		ret &= ~STPMIC1_LDO12356_VOUT_MASK;
-		ret |= STPMIC1_LDO_VOUT(STPMIC1_LDO3_DDR_SEL);
-
-		ret = pmic_reg_write(dev, STPMIC1_LDOX_MAIN_CR(STPMIC1_LDO3),
-				     ret);
-		if (ret < 0)
-			return ret;
+		if (!is_mp13) {
+			/* Enable VTT only on STM32MP15xx */
+			ret = pmic_reg_read(dev, STPMIC1_LDOX_MAIN_CR(STPMIC1_LDO3));
+			if (ret < 0)
+				return ret;
+
+			ret &= ~STPMIC1_LDO3_MODE;
+			ret &= ~STPMIC1_LDO12356_VOUT_MASK;
+			ret |= STPMIC1_LDO_VOUT(STPMIC1_LDO3_DDR_SEL);
+
+			ret = pmic_reg_write(dev, STPMIC1_LDOX_MAIN_CR(STPMIC1_LDO3),
+					     ret);
+			if (ret < 0)
+				return ret;
+		}
 
 		/* VDD_DDR = Set BUCK2 to 1.35V */
 		ret = pmic_clrsetbits(dev,
@@ -69,11 +83,14 @@ int board_ddr_power_init(enum ddr_type ddr_type)
 		mdelay(STPMIC1_DEFAULT_START_UP_DELAY_MS);
 
 		/* Enable VTT = LDO3 */
-		ret = pmic_clrsetbits(dev,
-				      STPMIC1_LDOX_MAIN_CR(STPMIC1_LDO3),
-				      STPMIC1_LDO_ENA, STPMIC1_LDO_ENA);
-		if (ret < 0)
-			return ret;
+		if (!is_mp13) {
+			/* Enable VTT only on STM32MP15xx */
+			ret = pmic_clrsetbits(dev,
+					      STPMIC1_LDOX_MAIN_CR(STPMIC1_LDO3),
+					      STPMIC1_LDO_ENA, STPMIC1_LDO_ENA);
+			if (ret < 0)
+				return ret;
+		}
 
 		mdelay(STPMIC1_DEFAULT_START_UP_DELAY_MS);
 
diff --git a/board/st/stm32mp1/debug_uart.c b/board/st/stm32mp1/debug_uart.c
index 24e3f9f2201..4c2149e0480 100644
--- a/board/st/stm32mp1/debug_uart.c
+++ b/board/st/stm32mp1/debug_uart.c
@@ -9,17 +9,32 @@
 #include <asm/arch/stm32.h>
 #include <linux/bitops.h>
 
+#if IS_ENABLED(CONFIG_STM32MP13X)
+#define RCC_MP_APB1ENSETR (STM32_RCC_BASE + 0x0700)
+#define RCC_MP_AHB4ENSETR (STM32_RCC_BASE + 0x0768)
+#elif IS_ENABLED(CONFIG_STM32MP15X)
 #define RCC_MP_APB1ENSETR (STM32_RCC_BASE + 0x0A00)
 #define RCC_MP_AHB4ENSETR (STM32_RCC_BASE + 0x0A28)
+#endif
 
+#define GPIOA_BASE 0x50002000
 #define GPIOG_BASE 0x50008000
 
 void board_debug_uart_init(void)
 {
-	if (CONFIG_DEBUG_UART_BASE == STM32_UART4_BASE) {
-		/* UART4 clock enable */
-		setbits_le32(RCC_MP_APB1ENSETR, BIT(16));
+	if (CONFIG_DEBUG_UART_BASE != STM32_UART4_BASE)
+		return;
 
+	/* UART4 clock enable */
+	setbits_le32(RCC_MP_APB1ENSETR, BIT(16));
+
+	if (IS_ENABLED(CONFIG_STM32MP13X)) {
+		/* GPIOA clock enable */
+		writel(BIT(0), RCC_MP_AHB4ENSETR);
+		/* GPIO configuration for DH boards: Uart4 TX = A9 */
+		writel(0xfffbffff, GPIOA_BASE + 0x00);
+		writel(0x00000080, GPIOA_BASE + 0x24);
+	} else if (IS_ENABLED(CONFIG_STM32MP15X)) {
 		/* GPIOG clock enable */
 		writel(BIT(6), RCC_MP_AHB4ENSETR);
 		/* GPIO configuration for ST boards: Uart4 TX = G11 */
diff --git a/board/st/stm32mp2/Kconfig b/board/st/stm32mp2/Kconfig
index f91e25f1f9a..e88c71a278e 100644
--- a/board/st/stm32mp2/Kconfig
+++ b/board/st/stm32mp2/Kconfig
@@ -1,3 +1,17 @@
+if TARGET_ST_STM32MP23X
+
+config SYS_BOARD
+	default "stm32mp2"
+
+config SYS_VENDOR
+	default "st"
+
+config SYS_CONFIG_NAME
+	default "stm32mp23_st_common"
+
+source "board/st/common/Kconfig"
+endif
+
 if TARGET_ST_STM32MP25X
 
 config SYS_BOARD