diff --git a/arch/arm/include/asm/arch-stm32f4/stm32.h b/arch/arm/include/asm/arch-stm32f4/stm32.h
index a9f88db..3ed3801 100644
--- a/arch/arm/include/asm/arch-stm32f4/stm32.h
+++ b/arch/arm/include/asm/arch-stm32f4/stm32.h
@@ -14,6 +14,7 @@
 /*
  * Peripheral memory map
  */
+#define STM32_SYSMEM_BASE	0x1FFF0000
 #define STM32_PERIPH_BASE	0x40000000
 #define STM32_APB1PERIPH_BASE	(STM32_PERIPH_BASE + 0x00000000)
 #define STM32_APB2PERIPH_BASE	(STM32_PERIPH_BASE + 0x00010000)
@@ -25,6 +26,12 @@
 /*
  * Register maps
  */
+struct stm32_u_id_regs {
+	u32 u_id_low;
+	u32 u_id_mid;
+	u32 u_id_high;
+};
+
 struct stm32_rcc_regs {
 	u32 cr;		/* RCC clock control */
 	u32 pllcfgr;	/* RCC PLL configuration */
@@ -78,6 +85,9 @@
 /*
  * Registers access macros
  */
+#define STM32_U_ID_BASE		(STM32_SYSMEM_BASE + 0x7A10)
+#define STM32_U_ID		((struct stm32_u_id_regs *)STM32_U_ID_BASE)
+
 #define STM32_RCC_BASE		(STM32_AHB1PERIPH_BASE + 0x3800)
 #define STM32_RCC		((struct stm32_rcc_regs *)STM32_RCC_BASE)