summaryrefslogtreecommitdiff
path: root/target/linux/ar7/patches/500-serial_kludge.patch
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/ar7/patches/500-serial_kludge.patch')
-rw-r--r--target/linux/ar7/patches/500-serial_kludge.patch40
1 files changed, 40 insertions, 0 deletions
diff --git a/target/linux/ar7/patches/500-serial_kludge.patch b/target/linux/ar7/patches/500-serial_kludge.patch
new file mode 100644
index 0000000..cc4e424
--- /dev/null
+++ b/target/linux/ar7/patches/500-serial_kludge.patch
@@ -0,0 +1,40 @@
+--- a/drivers/serial/8250.c
++++ b/drivers/serial/8250.c
+@@ -286,6 +286,13 @@ static const struct serial8250_config ua
+ .fcr = UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
+ .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,
++ },
+ };
+
+ #if defined (CONFIG_SERIAL_8250_AU1X00)
+@@ -2687,7 +2694,11 @@ static void serial8250_console_putchar(s
+ {
+ struct uart_8250_port *up = (struct uart_8250_port *)port;
+
++#ifdef CONFIG_AR7
++ wait_for_xmitr(up, BOTH_EMPTY);
++#else
+ wait_for_xmitr(up, UART_LSR_THRE);
++#endif
+ serial_out(up, UART_TX, ch);
+ }
+
+--- a/include/linux/serial_core.h
++++ b/include/linux/serial_core.h
+@@ -41,7 +41,8 @@
+ #define PORT_XSCALE 15
+ #define PORT_RM9000 16 /* PMC-Sierra RM9xxx internal UART */
+ #define PORT_OCTEON 17 /* Cavium OCTEON internal UART */
+-#define PORT_MAX_8250 17 /* max port ID */
++#define PORT_AR7 18 /* TI AR7 internal UART */
++#define PORT_MAX_8250 18 /* max port ID */
+
+ /*
+ * ARM specific type numbers. These are not currently guaranteed