openwrt/target/linux/ar7/patches-3.9/500-serial_kludge.patch

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--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -323,6 +323,13 @@ static const struct serial8250_config ua
.fcr = UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
.flags = UART_CAP_FIFO | UART_CAP_AFE,
},
+ [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,
+ },
};
/* Uart divisor latch read */
@@ -2839,7 +2846,11 @@ static void serial8250_console_putchar(s
struct uart_8250_port *up =
container_of(port, struct uart_8250_port, port);
+#ifdef CONFIG_AR7
+ wait_for_xmitr(up, BOTH_EMPTY);
+#else
wait_for_xmitr(up, UART_LSR_THRE);
+#endif
serial_port_out(port, UART_TX, ch);
}