openwrtv4/target/linux/ar7/patches-2.6.24/500-serial_kludge.patch

Index: linux-2.6.24/drivers/serial/8250.c
===================================================================
--- linux-2.6.24/drivers/serial/8250.c	2007-09-21 16:23:51.000000000 +0800
+++ linux-2.6.24/drivers/serial/8250.c	2007-09-21 16:24:14.000000000 +0800
@@ -267,6 +267,13 @@
 		.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)
@@ -2453,7 +2460,11 @@
 {
 	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);
 }
 
Index: linux-2.6.24/include/linux/serial_core.h
===================================================================
--- linux-2.6.24/include/linux/serial_core.h	2007-09-21 16:23:51.000000000 +0800
+++ linux-2.6.24/include/linux/serial_core.h	2007-09-21 16:24:14.000000000 +0800
@@ -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