pcntr = tp->pcntr;

.stabn 68,0,113,.LM21-coldfire_timer_offset
.LM21:
	move.b 1075118084,%d2
	and.l #0xFF,%d2
	lsl.l #8,%d2
	move.b 1075118085,%d0
	and.l #0xFF,%d0
	or.l %d2,%d0

Below I have a patch that resolves this problem. It replaces the compiler dependant code by inline assembler that reads the 16 bit counter with a movew instruction."

The patch and some more comments on it's implementation follow.

This patch can be used for config.c in uClinux dist 20040408. It probably fits for all m68knommu platforms and for 2.6 kernels.

Felix Daners

RCS file: /home/cvs/cvsroot/./uClinux-dist/linux-2.4.x/arch/ m68knommu/platform/5280/config.c,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 config.c
--- config.c	3 May 2004 16:26:50 -0000	1.1.1.1
+++ config.c	3 Jun 2004 09:36:40 -0000
@@ -100,6 +100,10 @@
 
 /************************************************* **************************/
 
+#define CONFIG_POINTER(x) ((unsigned long *)(x))
+#define CONFIG_ATOMIC_MOVE(x,ptr,bwl) __asm__ ("move" #bwl " %1,%0" : "=d" (x) : "m" (*CONFIG_POINTER(ptr)))
+
+
 unsigned long coldfire_timer_offset(void)
 {
 	volatile struct mcfpit *tp;
@@ -110,7 +114,7 @@
 	ipr = (volatile unsigned long *) (MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_IPRH);
 
 	pmr = tp->pmr;

-	pcntr = tp->pcntr;
+	CONFIG_ATOMIC_MOVE(pcntr, &(tp->pcntr), w);
 
 	/*
 	 * If we are still in the first half of the downcount and a