[ARM PATCH] 2372/1: S3C2410 - remove s3c2410_clock_tick_rate

Patch from Ben Dooks

This is an old definition, and is no longer used anywhere.
Add a comment to that effect in the header file
include/asm-arm/arch-s3c2410/timex.h and remove all other
references.

Thanks to Klaus Fetscher for pointing out that it isn't
used anymore

Signed-off-by: Ben Dooks
Signed-off-by: Russell King

arch/arm/mach-s3c2410/s3c2410.c

 /* linux/arch/arm/mach-s3c2410/s3c2410.c
  *
- * Copyright (c) 2003,2004 Simtec Electronics
+ * Copyright (c) 2003-2005 Simtec Electronics
  *	Ben Dooks <ben@simtec.co.uk>
  *
  * http://www.simtec.co.uk/products/EB2410ITX/
@@ -17,6 +17,7 @@
  *     21-Aug-2004 BJD  Added new struct s3c2410_board handler
  *     28-Sep-2004 BJD  Updates for new serial port bits
  *     04-Nov-2004 BJD  Updated UART configuration process
+ *     10-Jan-2004 BJD  Removed s3c2410_clock_tick_rate
 */
 
 #include <linux/kernel.h>
@@ -42,8 +43,6 @@
 #include "cpu.h"
 #include "clock.h"
 
-int s3c2410_clock_tick_rate = 12*1000*1000;  /* current timers at 12MHz */
-
 /* Initial IO mappings */
 
 static struct map_desc s3c2410_iodesc[] __initdata = {

include/asm-arm/arch-s3c2410/timex.h

 /* linux/include/asm-arm/arch-s3c2410/timex.h
  *
- * (c) 2003,2004 Simtec Electronics
+ * (c) 2003-2005 Simtec Electronics
  *  Ben Dooks <ben@simtec.co.uk>
  *
  * S3C2410 - time parameters
@@ -13,21 +13,19 @@
  *  02-Sep-2003 BJD  Created file
  *  05-Jan-2004 BJD  Updated for Linux 2.6.0
  *  22-Nov-2004 BJD  Fixed CLOCK_TICK_RATE
+ *  10-Jan-2004 BJD  Removed s3c2410_clock_tick_rate
 */
 
 #ifndef __ASM_ARCH_TIMEX_H
 #define __ASM_ARCH_TIMEX_H
 
-#if 0
-/* todo - this does not seem to work with 2.6.0 -> division by zero
- * in header files
- */
-extern int s3c2410_clock_tick_rate;
+/* CLOCK_TICK_RATE needs to be evaluatable by the cpp, so making it
+ * a variable is useless. It seems as long as we make our timers an
+ * exact multiple of HZ, any value that makes a 1->1 correspondence
+ * for the time conversion functions to/from jiffies is acceptable.
+*/
 
-#define CLOCK_TICK_RATE (s3c2410_clock_tick_rate)
-#endif
 
-/* currently, the BAST uses 12MHz as a base clock rate */
 #define CLOCK_TICK_RATE 12000000