[ar7] add experimental 2.6.30 support, boot tested

[openwrt/svn-archive/archive.git] / target / linux / ar7 / patches / 500-serial_kludge.patch

diff --git a/target/linux/ar7/patches/500-serial_kludge.patch b/target/linux/ar7/patches/500-serial_kludge.patch
new file mode 100644 (file)
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