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freifunkist-firmware/target/linux/ar7/patches-4.1/500-serial_kludge.patch

28 lines
698 B

--- 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 */
@@ -3342,7 +3349,11 @@ 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);
}