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Diffstat (limited to 'target/linux/ar7/patches-2.6.24/500-serial_kludge.patch')
-rw-r--r--target/linux/ar7/patches-2.6.24/500-serial_kludge.patch57
1 files changed, 57 insertions, 0 deletions
diff --git a/target/linux/ar7/patches-2.6.24/500-serial_kludge.patch b/target/linux/ar7/patches-2.6.24/500-serial_kludge.patch
new file mode 100644
index 0000000000..446b2b555c
--- /dev/null
+++ b/target/linux/ar7/patches-2.6.24/500-serial_kludge.patch
@@ -0,0 +1,57 @@
+Index: linux-2.6.23-rc6/drivers/serial/8250.c
+===================================================================
+--- linux-2.6.23-rc6.orig/drivers/serial/8250.c 2007-09-21 16:23:51.000000000 +0800
++++ linux-2.6.23-rc6/drivers/serial/8250.c 2007-09-21 16:24:14.000000000 +0800
+@@ -267,6 +267,13 @@
+ .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)
+@@ -2453,7 +2460,11 @@
+ {
+ 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);
+ }
+
+Index: linux-2.6.23-rc6/include/linux/serial_core.h
+===================================================================
+--- linux-2.6.23-rc6.orig/include/linux/serial_core.h 2007-09-21 16:23:51.000000000 +0800
++++ linux-2.6.23-rc6/include/linux/serial_core.h 2007-09-21 16:24:14.000000000 +0800
+@@ -40,6 +40,7 @@
+ #define PORT_NS16550A 14
+ #define PORT_XSCALE 15
+ #define PORT_RM9000 16 /* PMC-Sierra RM9xxx internal UART */
++#define PORT_AR7 16
+ #define PORT_MAX_8250 16 /* max port ID */
+
+ /*
+Index: linux-2.6.23-rc6/include/linux/serialP.h
+===================================================================
+--- linux-2.6.23-rc6.orig/include/linux/serialP.h 2007-09-21 16:23:51.000000000 +0800
++++ linux-2.6.23-rc6/include/linux/serialP.h 2007-09-21 16:24:14.000000000 +0800
+@@ -135,6 +135,10 @@
+ * the interrupt line _up_ instead of down, so if we register the IRQ
+ * while the UART is in that state, we die in an IRQ storm. */
+ #define ALPHA_KLUDGE_MCR (UART_MCR_OUT2)
++#elif defined(CONFIG_AR7)
++/* This is how it is set up by bootloader... */
++#define ALPHA_KLUDGE_MCR (UART_MCR_OUT2 | UART_MCR_OUT1 \
++ | UART_MCR_RTS | UART_MCR_DTR)
+ #else
+ #define ALPHA_KLUDGE_MCR 0
+ #endif