diff --git a/drivers/ti/uart/aarch64/16550_console.S b/drivers/ti/uart/aarch64/16550_console.S
index 56e7e5c..d46fa61 100644
--- a/drivers/ti/uart/aarch64/16550_console.S
+++ b/drivers/ti/uart/aarch64/16550_console.S
@@ -66,6 +66,10 @@
 	/* no interrupt */
 	mov	w3, #0
 	str	w3, [x0, #UARTIER]
+#ifdef TI_16550_MDR_QUIRK
+	/* UART must be enabled on some platforms via the MDR register */
+	str	w3, [x0, #UARTMDR1]
+#endif /* TI_16550_MDR_QUIRK */
 	/* enable fifo, DMA */
 	mov	w3, #(UARTFCR_FIFOEN | UARTFCR_DMAEN)
 	str	w3, [x0, #UARTFCR]
diff --git a/include/drivers/ti/uart/uart_16550.h b/include/drivers/ti/uart/uart_16550.h
index 9eba41a..b00f664 100644
--- a/include/drivers/ti/uart/uart_16550.h
+++ b/include/drivers/ti/uart/uart_16550.h
@@ -23,6 +23,8 @@
 #define UARTMSR			0x18
 #define UARTSPR			0x1c
 #define UARTCSR			0x20
+/* Some instances have MDR1 defined as well */
+#define UARTMDR1		0x20
 #define UARTRXFIFOCFG		0x24
 #define UARTMIE			0x28
 #define UARTVNDR		0x2c