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-rw-r--r--target/linux/ar7/patches-4.1/500-serial_kludge.patch28
1 files changed, 28 insertions, 0 deletions
diff --git a/target/linux/ar7/patches-4.1/500-serial_kludge.patch b/target/linux/ar7/patches-4.1/500-serial_kludge.patch
new file mode 100644
index 0000000000..4baf4aaf64
--- /dev/null
+++ b/target/linux/ar7/patches-4.1/500-serial_kludge.patch
@@ -0,0 +1,28 @@
+--- a/drivers/tty/serial/8250/8250_core.c
++++ b/drivers/tty/serial/8250/8250_core.c
+@@ -339,6 +339,13 @@ configured less than Maximum supported f
+ UART_FCR7_64BYTE,
+ .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 */
+@@ -3340,7 +3347,11 @@ 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);
+ }
+