--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -266,6 +266,13 @@
 		.fcr		= UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
 		.flags		= UART_CAP_FIFO,
 	},
+	[PORT_AR7] = {
+		.name		= "TI-AR7",
+		.fifo_size	= 16,
+		.tx_loadsz	= 16,
+		.fcr		= UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_00,
+		.flags		= UART_CAP_FIFO | UART_CAP_AFE,
+	},
 };
 
 #if defined (CONFIG_SERIAL_8250_AU1X00)
@@ -2524,7 +2531,11 @@
 {
 	struct uart_8250_port *up = (struct uart_8250_port *)port;
 
+#ifdef CONFIG_AR7
+	wait_for_xmitr(up, BOTH_EMPTY);
+#else
 	wait_for_xmitr(up, UART_LSR_THRE);
+#endif
 	serial_out(up, UART_TX, ch);
 }
 
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -40,7 +40,8 @@
 #define PORT_NS16550A	14
 #define PORT_XSCALE	15
 #define PORT_RM9000	16	/* PMC-Sierra RM9xxx internal UART */
-#define PORT_MAX_8250	16	/* max port ID */
+#define PORT_AR7	17
+#define PORT_MAX_8250	17	/* max port ID */
 
 /*
  * ARM specific type numbers.  These are not currently guaranteed
