openwrt/target/linux/ar7-2.6/patches/500-serial_kludge.patch

53 lines
1.9 KiB
Diff

diff -Nru linux-2.6.19.2/include/linux/serialP.h linux-ar7/include/linux/serialP.h
--- linux-2.6.19.2/include/linux/serialP.h 2007-01-17 01:24:01.000000000 +0700
+++ linux-ar7/include/linux/serialP.h 2007-03-22 22:36:48.000000000 +0700
@@ -135,6 +135,9 @@
* 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
diff -Nru linux-2.6.19.2/include/linux/serial_core.h linux-ar7/include/linux/serial_core.h
--- linux-2.6.19.2/include/linux/serial_core.h 2007-01-11 02:10:37.000000000 +0700
+++ linux-ar7/include/linux/serial_core.h 2007-03-22 22:50:13.000000000 +0700
@@ -39,7 +39,8 @@
#define PORT_RSA 13
#define PORT_NS16550A 14
#define PORT_XSCALE 15
-#define PORT_MAX_8250 15 /* max port ID */
+#define PORT_AR7 16
+#define PORT_MAX_8250 16 /* max port ID */
/*
* ARM specific type numbers. These are not currently guaranteed
diff -Nru linux-2.6.19.2/drivers/serial/8250.c linux-ar7/drivers/serial/8250.c
--- linux-2.6.19.2/drivers/serial/8250.c 2007-01-11 02:10:37.000000000 +0700
+++ linux-ar7/drivers/serial/8250.c 2007-03-22 22:45:17.000000000 +0700
@@ -251,6 +251,13 @@
.fcr = UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
.flags = UART_CAP_FIFO | UART_CAP_UUE,
},
+ [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,
+ },
};
#ifdef CONFIG_SERIAL_8250_AU1X00
@@ -2243,7 +2250,7 @@
{
struct uart_8250_port *up = (struct uart_8250_port *)port;
- wait_for_xmitr(up, UART_LSR_THRE);
+ wait_for_xmitr(up, BOTH_EMPTY);
serial_out(up, UART_TX, ch);
}