diff --git a/include/drivers/st/stm32_uart_regs.h b/include/drivers/st/stm32_uart_regs.h
new file mode 100644
index 0000000..e78d3d4
--- /dev/null
+++ b/include/drivers/st/stm32_uart_regs.h
@@ -0,0 +1,199 @@
+/*
+ * Copyright (C) 2018, STMicroelectronics - All Rights Reserved
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef STM32_UART_REGS_H
+#define STM32_UART_REGS_H
+
+#include <utils_def.h>
+
+#define USART_CR1		U(0x00)
+#define USART_CR2		U(0x04)
+#define USART_CR3		U(0x08)
+#define USART_BRR		U(0x0C)
+#define USART_GTPR		U(0x10)
+#define USART_RTOR		U(0x14)
+#define USART_RQR		U(0x18)
+#define USART_ISR		U(0x1C)
+#define USART_ICR		U(0x20)
+#define USART_RDR		U(0x24)
+#define USART_TDR		U(0x28)
+#define USART_PRESC		U(0x2C)
+
+/* USART_CR1 register fields */
+#define USART_CR1_UE		BIT(0)
+#define USART_CR1_UESM		BIT(1)
+#define USART_CR1_RE		BIT(2)
+#define USART_CR1_TE		BIT(3)
+#define USART_CR1_IDLEIE	BIT(4)
+#define USART_CR1_RXNEIE	BIT(5)
+#define USART_CR1_TCIE		BIT(6)
+#define USART_CR1_TXEIE		BIT(7)
+#define USART_CR1_PEIE		BIT(8)
+#define USART_CR1_PS		BIT(9)
+#define USART_CR1_PCE		BIT(10)
+#define USART_CR1_WAKE		BIT(11)
+#define USART_CR1_M		(BIT(28) | BIT(12))
+#define USART_CR1_M0		BIT(12)
+#define USART_CR1_MME		BIT(13)
+#define USART_CR1_CMIE		BIT(14)
+#define USART_CR1_OVER8		BIT(15)
+#define USART_CR1_DEDT		GENMASK(20, 16)
+#define USART_CR1_DEDT_0	BIT(16)
+#define USART_CR1_DEDT_1	BIT(17)
+#define USART_CR1_DEDT_2	BIT(18)
+#define USART_CR1_DEDT_3	BIT(19)
+#define USART_CR1_DEDT_4	BIT(20)
+#define USART_CR1_DEAT		GENMASK(25, 21)
+#define USART_CR1_DEAT_0	BIT(21)
+#define USART_CR1_DEAT_1	BIT(22)
+#define USART_CR1_DEAT_2	BIT(23)
+#define USART_CR1_DEAT_3	BIT(24)
+#define USART_CR1_DEAT_4	BIT(25)
+#define USART_CR1_RTOIE		BIT(26)
+#define USART_CR1_EOBIE		BIT(27)
+#define USART_CR1_M1		BIT(28)
+#define USART_CR1_FIFOEN	BIT(29)
+#define USART_CR1_TXFEIE	BIT(30)
+#define USART_CR1_RXFFIE	BIT(31)
+
+/* USART_CR2 register fields */
+#define USART_CR2_SLVEN		BIT(0)
+#define USART_CR2_DIS_NSS	BIT(3)
+#define USART_CR2_ADDM7		BIT(4)
+#define USART_CR2_LBDL		BIT(5)
+#define USART_CR2_LBDIE		BIT(6)
+#define USART_CR2_LBCL		BIT(8)
+#define USART_CR2_CPHA		BIT(9)
+#define USART_CR2_CPOL		BIT(10)
+#define USART_CR2_CLKEN		BIT(11)
+#define USART_CR2_STOP		GENMASK(13, 12)
+#define USART_CR2_STOP_0	BIT(12)
+#define USART_CR2_STOP_1	BIT(13)
+#define USART_CR2_LINEN		BIT(14)
+#define USART_CR2_SWAP		BIT(15)
+#define USART_CR2_RXINV		BIT(16)
+#define USART_CR2_TXINV		BIT(17)
+#define USART_CR2_DATAINV	BIT(18)
+#define USART_CR2_MSBFIRST	BIT(19)
+#define USART_CR2_ABREN		BIT(20)
+#define USART_CR2_ABRMODE	GENMASK(22, 21)
+#define USART_CR2_ABRMODE_0	BIT(21)
+#define USART_CR2_ABRMODE_1	BIT(22)
+#define USART_CR2_RTOEN		BIT(23)
+#define USART_CR2_ADD		GENMASK(31, 24)
+
+/* USART_CR3 register fields */
+#define USART_CR3_EIE		BIT(0)
+#define USART_CR3_IREN		BIT(1)
+#define USART_CR3_IRLP		BIT(2)
+#define USART_CR3_HDSEL		BIT(3)
+#define USART_CR3_NACK		BIT(4)
+#define USART_CR3_SCEN		BIT(5)
+#define USART_CR3_DMAR		BIT(6)
+#define USART_CR3_DMAT		BIT(7)
+#define USART_CR3_RTSE		BIT(8)
+#define USART_CR3_CTSE		BIT(9)
+#define USART_CR3_CTSIE		BIT(10)
+#define USART_CR3_ONEBIT	BIT(11)
+#define USART_CR3_OVRDIS	BIT(12)
+#define USART_CR3_DDRE		BIT(13)
+#define USART_CR3_DEM		BIT(14)
+#define USART_CR3_DEP		BIT(15)
+#define USART_CR3_SCARCNT	GENMASK(19, 17)
+#define USART_CR3_SCARCNT_0	BIT(17)
+#define USART_CR3_SCARCNT_1	BIT(18)
+#define USART_CR3_SCARCNT_2	BIT(19)
+#define USART_CR3_WUS		GENMASK(21, 20)
+#define USART_CR3_WUS_0		BIT(20)
+#define USART_CR3_WUS_1		BIT(21)
+#define USART_CR3_WUFIE		BIT(22)
+#define USART_CR3_TXFTIE	BIT(23)
+#define USART_CR3_TCBGTIE	BIT(24)
+#define USART_CR3_RXFTCFG	GENMASK(27, 25)
+#define USART_CR3_RXFTCFG_0	BIT(25)
+#define USART_CR3_RXFTCFG_1	BIT(26)
+#define USART_CR3_RXFTCFG_2	BIT(27)
+#define USART_CR3_RXFTIE	BIT(28)
+#define USART_CR3_TXFTCFG	GENMASK(31, 29)
+#define USART_CR3_TXFTCFG_0	BIT(29)
+#define USART_CR3_TXFTCFG_1	BIT(30)
+#define USART_CR3_TXFTCFG_2	BIT(31)
+
+/* USART_BRR register fields */
+#define USART_BRR_DIV_FRACTION	GENMASK(3, 0)
+#define USART_BRR_DIV_MANTISSA	GENMASK(15, 4)
+
+/* USART_GTPR register fields */
+#define USART_GTPR_PSC		GENMASK(7, 0)
+#define USART_GTPR_GT		GENMASK(15, 8)
+
+/* USART_RTOR register fields */
+#define USART_RTOR_RTO		GENMASK(23, 0)
+#define USART_RTOR_BLEN		GENMASK(31, 24)
+
+/* USART_RQR register fields */
+#define USART_RQR_ABRRQ		BIT(0)
+#define USART_RQR_SBKRQ		BIT(1)
+#define USART_RQR_MMRQ		BIT(2)
+#define USART_RQR_RXFRQ		BIT(3)
+#define USART_RQR_TXFRQ		BIT(4)
+
+/* USART_ISR register fields */
+#define USART_ISR_PE		BIT(0)
+#define USART_ISR_FE		BIT(1)
+#define USART_ISR_NE		BIT(2)
+#define USART_ISR_ORE		BIT(3)
+#define USART_ISR_IDLE		BIT(4)
+#define USART_ISR_RXNE		BIT(5)
+#define USART_ISR_TC		BIT(6)
+#define USART_ISR_TXE		BIT(7)
+#define USART_ISR_LBDF		BIT(8)
+#define USART_ISR_CTSIF		BIT(9)
+#define USART_ISR_CTS		BIT(10)
+#define USART_ISR_RTOF		BIT(11)
+#define USART_ISR_EOBF		BIT(12)
+#define USART_ISR_UDR		BIT(13)
+#define USART_ISR_ABRE		BIT(14)
+#define USART_ISR_ABRF		BIT(15)
+#define USART_ISR_BUSY		BIT(16)
+#define USART_ISR_CMF		BIT(17)
+#define USART_ISR_SBKF		BIT(18)
+#define USART_ISR_RWU		BIT(19)
+#define USART_ISR_WUF		BIT(20)
+#define USART_ISR_TEACK		BIT(21)
+#define USART_ISR_REACK		BIT(22)
+#define USART_ISR_TXFE		BIT(23)
+#define USART_ISR_RXFF		BIT(24)
+#define USART_ISR_TCBGT		BIT(25)
+#define USART_ISR_RXFT		BIT(26)
+#define USART_ISR_TXFT		BIT(27)
+
+/* USART_ICR register fields */
+#define USART_ICR_PECF		BIT(0)
+#define USART_ICR_FECF		BIT(1)
+#define USART_ICR_NCF		BIT(2)
+#define USART_ICR_ORECF		BIT(3)
+#define USART_ICR_IDLECF	BIT(4)
+#define USART_ICR_TCCF		BIT(6)
+#define USART_ICR_TCBGT		BIT(7)
+#define USART_ICR_LBDCF		BIT(8)
+#define USART_ICR_CTSCF		BIT(9)
+#define USART_ICR_RTOCF		BIT(11)
+#define USART_ICR_EOBCF		BIT(12)
+#define USART_ICR_UDRCF		BIT(13)
+#define USART_ICR_CMCF		BIT(17)
+#define USART_ICR_WUCF		BIT(20)
+
+/* USART_RDR register fields */
+#define USART_RDR_RDR		GENMASK(8, 0)
+
+/* USART_TDR register fields */
+#define USART_TDR_TDR		GENMASK(8, 0)
+
+/* USART_PRESC register fields */
+#define USART_PRESC_PRESCALER	GENMASK(3, 0)
+
+#endif /* STM32_UART_REGS_H */