openwrtv4/target/linux/ar7/patches-3.18/500-serial_kludge.patch
Jonas Gorski 76d079204d kernel: update 3.18 to 3.18.14
Changelogs:

* https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.18.12
* https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.18.13
* https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.18.14

Build tested on brcm63xx and ipq806x, runtested on brcm63xx.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

SVN-Revision: 45711
2015-05-21 19:32:46 +00:00

28 lines
733 B
Diff

--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -329,6 +329,13 @@ 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 */
@@ -3174,7 +3181,11 @@ static void serial8250_console_putchar(s
{
struct uart_8250_port *up = up_to_u8250p(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);
}