drivers: ti: uart: Update 16550 UART driver to support MULTI_CONSOLE_API

This patch updates the TI 16550 console driver to support the new
console API. The driver will continue to support the old API as well by
checking the MULTI_CONSOLE_API compile-time flag.

Change-Id: I60a44b7ba3c35c74561824c04b8dbe3e3039324c
Signed-off-by: Julius Werner <jwerner@chromium.org>
diff --git a/include/drivers/ti/uart/uart_16550.h b/include/drivers/ti/uart/uart_16550.h
index f258d45..9eba41a 100644
--- a/include/drivers/ti/uart/uart_16550.h
+++ b/include/drivers/ti/uart/uart_16550.h
@@ -7,6 +7,8 @@
 #ifndef __UART_16550_H__
 #define __UART_16550_H__
 
+#include <console.h>
+
 /* UART16550 Registers */
 #define UARTTX			0x0
 #define UARTRX			0x0
@@ -67,4 +69,26 @@
 #define UARTLSR_RDR_BIT		(0)		/* Rx Data Ready Bit */
 #define UARTLSR_RDR		(1 << UARTLSR_RDR_BIT)	/* Rx Data Ready */
 
+#define CONSOLE_T_16550_BASE	CONSOLE_T_DRVDATA
+
+#ifndef __ASSEMBLY__
+
+#include <types.h>
+
+typedef struct {
+	console_t console;
+	uintptr_t base;
+} console_16550_t;
+
+/*
+ * Initialize a new 16550 console instance and register it with the console
+ * framework. The |console| pointer must point to storage that will be valid
+ * for the lifetime of the console, such as a global or static local variable.
+ * Its contents will be reinitialized from scratch.
+ */
+int console_16550_register(uintptr_t baseaddr, uint32_t clock, uint32_t baud,
+			   console_16550_t *console);
+
+#endif /*__ASSEMBLY__*/
+
 #endif	/* __UART_16550_H__ */