diff --git a/plat/mediatek/drivers/uart/uart8250.h b/plat/mediatek/drivers/uart/uart8250.h
new file mode 100644
index 0000000..f0541d6
--- /dev/null
+++ b/plat/mediatek/drivers/uart/uart8250.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2015-2022, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+#ifndef UART8250_H
+#define UART8250_H
+
+/* UART register */
+#define UART_RBR		0x00	/* Receive buffer register */
+#define UART_DLL		0x00	/* Divisor latch lsb */
+#define UART_THR		0x00	/* Transmit holding register */
+#define UART_DLH		0x04	/* Divisor latch msb */
+#define UART_IER		0x04	/* Interrupt enable register */
+#define UART_FCR		0x08	/* FIFO control register */
+#define UART_LCR		0x0c	/* Line control register */
+#define UART_MCR		0x10	/* Modem control register */
+#define UART_LSR		0x14	/* Line status register */
+#define UART_HIGHSPEED		0x24	/* High speed UART */
+
+/* FCR */
+#define UART_FCR_FIFO_EN	0x01	/* enable FIFO */
+#define UART_FCR_CLEAR_RCVR	0x02	/* clear the RCVR FIFO */
+#define UART_FCR_CLEAR_XMIT	0x04	/* clear the XMIT FIFO */
+
+/* LCR */
+#define UART_LCR_WLS_8		0x03	/* 8 bit character length */
+#define UART_LCR_DLAB		0x80	/* divisor latch access bit */
+
+/* MCR */
+#define UART_MCR_DTR		0x01
+#define UART_MCR_RTS		0x02
+
+/* LSR */
+#define UART_LSR_DR		0x01	/* Data ready */
+#define UART_LSR_THRE		0x20	/* Xmit holding register empty */
+
+#endif /* UART8250_H */