openwrt_archive/target/linux/ar7/patches-4.1/500-serial_kludge.patch
Hauke Mehrtens fd86963c0b kernel: update kernel 4.1 to version 4.1.11
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.11

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>


SVN-Revision: 47252
2015-10-25 17:32:01 +00:00

29 lines
698 B
Diff

--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -347,6 +347,13 @@ configured less than Maximum supported f
.rxtrig_bytes = {1, 4, 8, 14},
.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,
+ },
};
/* Uart divisor latch read */
@@ -3348,7 +3355,11 @@ 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);
}