[Patch]Make 2.5.3x serial can compile.

[Patch]Make 2.5.3x serial can compile.

[Hu Gang]

Hello all:

The code is copy from arm 2.5.30 tree.
----------------------------------------------------
diff -ur ./8250.c /tmp/serial/8250.c
--- ./8250.c	Sun Sep  1 11:09:03 2002
+++ /tmp/serial/8250.c	Fri Sep 13 11:23:29 2002
@@ -31,7 +31,8 @@
 #include <linux/console.h>
 #include <linux/sysrq.h>
 #include <linux/serial_reg.h>
-#include <linux/serialP.h>
+#include <linux/circ_buf.h>
+#include <linux/serial.h>
 #include <linux/delay.h>
 
 #include <asm/io.h>
diff -ur ./8250.h /tmp/serial/8250.h
--- ./8250.h	Sun Sep  1 11:08:52 2002
+++ /tmp/serial/8250.h	Fri Sep 13 11:25:56 2002
@@ -58,4 +58,16 @@
 #define SERIAL8250_SHARE_IRQS 1
 #else
 #define SERIAL8250_SHARE_IRQS 0
+
+#if defined(__alpha__) && !defined(CONFIG_PCI)
+/*
+ * Digital did something really horribly wrong with the OUT1 and OUT2
+ * lines on at least some ALPHA's.  The failure mode is that if either
+ * is cleared, the machine locks up with endless interrupts.
+ */
+#define ALPHA_KLUDGE_MCR  (UART_MCR_OUT2 | UART_MCR_OUT1)
+#else
+#define ALPHA_KLUDGE_MCR 0
+#endif
+
 #endif


-- 
		- Hu Gang

Re: [Patch]Make 2.5.3x serial can compile.

[David Woodhouse]

hugang@soulinfo.com said:
> +#define ALPHA_KLUDGE_MCR  (UART_MCR_OUT2 | UART_MCR_OUT1) 

Operative word being 'kludge'. Fix it properly, let the board-specific code 
specify default values for and masks on whether the user can change each 
I/O bit when it calls register_serial() to register the chip.

--
dwmw2