diff -purN -x CVS u-boot-20040210cvs/cpu/nios/interrupts.c u-boot-20040210cvs-timer_varper/cpu/nios/interrupts.c
--- u-boot-20040210cvs/cpu/nios/interrupts.c	2004-01-03 19:43:49.000000000 +0000
+++ u-boot-20040210cvs-timer_varper/cpu/nios/interrupts.c	2004-02-12 22:32:37.000000000 +0000
@@ -128,6 +128,10 @@ int interrupt_init (void)
 
 	tmr->control &= ~NIOS_TIMER_ITO;
 	tmr->control |= NIOS_TIMER_STOP;
+#if defined(CFG_NIOS_TMRCNT)
+	tmr->periodl = CFG_NIOS_TMRCNT & 0xffff;
+	tmr->periodh = (CFG_NIOS_TMRCNT >> 16) & 0xffff;
+#endif
 #endif
 
 	for (vec=0; vec<64; vec++ ) {
diff -purN -x CVS u-boot-20040210cvs/doc/README.nios u-boot-20040210cvs-timer_varper/doc/README.nios
--- u-boot-20040210cvs/doc/README.nios	2004-02-09 23:12:25.000000000 +0000
+++ u-boot-20040210cvs-timer_varper/doc/README.nios	2004-02-12 22:42:32.000000000 +0000
@@ -100,6 +100,9 @@ CFG_NIOS_TMRIRQ -- the interrupt request
 
 CFG_NIOS_TMRMS -- the period of the timer in milliseconds.
 
+CFG_NIOS_TMRCNT -- the preloadable counter value for the timer if it has
+	no fixed period.
+
 CFG_NIOS_ASMIBASE -- the base address of the ASMI peripheral.
 	(standard-32: na_asmi_base).
 
diff -purN -x CVS u-boot-20040210cvs/include/configs/DK1C20.h u-boot-20040210cvs-timer_varper/include/configs/DK1C20.h
--- u-boot-20040210cvs/include/configs/DK1C20.h	2004-02-09 23:12:25.000000000 +0000
+++ u-boot-20040210cvs-timer_varper/include/configs/DK1C20.h	2004-02-12 22:38:49.000000000 +0000
@@ -146,17 +146,60 @@
 
 #if	(CFG_NIOS_CPU_TICK_TIMER == 0)
 
-#error *** CFG_ERROR: tick timer at TIMER0 not supported, expand your config.h
+#define CFG_NIOS_TMRBASE	CFG_NIOS_CPU_TIMER0 /* TIMER0 as tick	*/
+#define CFG_NIOS_TMRIRQ		CFG_NIOS_CPU_TIMER0_IRQ
+
+#if	(CFG_NIOS_CPU_TIMER0_FP == 1)		    /* fixed period */
+
+#if	(CFG_NIOS_CPU_TIMER0_PER >= CFG_HZ)
+#define CFG_NIOS_TMRMS		(CFG_NIOS_CPU_TIMER0_PER / CFG_HZ)
+#else
+#error *** CFG_ERROR: you have to use a timer periode greater than CFG_HZ
+#endif
+
+#undef	CFG_NIOS_TMRCNT	/* no preloadable counter value */
+
+#elif	(CFG_NIOS_CPU_TIMER0_FP == 0)		    /* variable period */
+
+#if	(CFG_HZ <= 1000)
+#define CFG_NIOS_TMRMS		(1000 / CFG_HZ)
+#else
+#error *** CFG_ERROR: sorry, CFG_HZ have to be less than 1000
+#endif
+
+#define	CFG_NIOS_TMRCNT		(CONFIG_SYS_CLK_FREQ / CFG_HZ)
+
+#else
+#error *** CFG_ERROR: you have to define CFG_NIOS_CPU_TIMER0_FP correct
+#endif
 
 #elif	(CFG_NIOS_CPU_TICK_TIMER == 1)
 
 #define CFG_NIOS_TMRBASE	CFG_NIOS_CPU_TIMER1 /* TIMER1 as tick	*/
 #define CFG_NIOS_TMRIRQ		CFG_NIOS_CPU_TIMER1_IRQ
 
+#if	(CFG_NIOS_CPU_TIMER1_FP == 1)		    /* fixed period */
+
 #if	(CFG_NIOS_CPU_TIMER1_PER >= CFG_HZ)
 #define CFG_NIOS_TMRMS		(CFG_NIOS_CPU_TIMER1_PER / CFG_HZ)
 #else
-#error *** CFG_ERROR: you have to use a timer periode of more than CFG_HZ
+#error *** CFG_ERROR: you have to use a timer periode greater than CFG_HZ
+#endif
+
+#undef	CFG_NIOS_TMRCNT	/* no preloadable counter value */
+
+#elif	(CFG_NIOS_CPU_TIMER1_FP == 0)		    /* variable period */
+
+#if	(CFG_HZ <= 1000)
+#define CFG_NIOS_TMRMS		(1000 / CFG_HZ)
+#else
+#error *** CFG_ERROR: sorry, CFG_HZ have to be less than 1000
+#endif
+
+#define	CFG_NIOS_TMRCNT		(CONFIG_SYS_CLK_FREQ / CFG_HZ)
+
+#else
+#error *** CFG_ERROR: you have to define CFG_NIOS_CPU_TIMER1_FP correct
 #endif
 
 #endif	/* CFG_NIOS_CPU_TICK_TIMER */
diff -purN -x CVS u-boot-20040210cvs/include/configs/DK1S10.h u-boot-20040210cvs-timer_varper/include/configs/DK1S10.h
--- u-boot-20040210cvs/include/configs/DK1S10.h	2004-02-09 23:12:26.000000000 +0000
+++ u-boot-20040210cvs-timer_varper/include/configs/DK1S10.h	2004-02-12 22:36:27.000000000 +0000
@@ -168,10 +168,28 @@
 #define CFG_NIOS_TMRBASE	CFG_NIOS_CPU_TIMER0 /* TIMER0 as tick	*/
 #define CFG_NIOS_TMRIRQ		CFG_NIOS_CPU_TIMER0_IRQ
 
+#if	(CFG_NIOS_CPU_TIMER0_FP == 1)		    /* fixed period */
+
 #if	(CFG_NIOS_CPU_TIMER0_PER >= CFG_HZ)
 #define CFG_NIOS_TMRMS		(CFG_NIOS_CPU_TIMER0_PER / CFG_HZ)
 #else
-#error *** CFG_ERROR: you have to use a timer periode of more than CFG_HZ
+#error *** CFG_ERROR: you have to use a timer periode greater than CFG_HZ
+#endif
+
+#undef	CFG_NIOS_TMRCNT	/* no preloadable counter value */
+
+#elif	(CFG_NIOS_CPU_TIMER0_FP == 0)		    /* variable period */
+
+#if	(CFG_HZ <= 1000)
+#define CFG_NIOS_TMRMS		(1000 / CFG_HZ)
+#else
+#error *** CFG_ERROR: sorry, CFG_HZ have to be less than 1000
+#endif
+
+#define	CFG_NIOS_TMRCNT		(CONFIG_SYS_CLK_FREQ / CFG_HZ)
+
+#else
+#error *** CFG_ERROR: you have to define CFG_NIOS_CPU_TIMER0_FP correct
 #endif
 
 #elif	(CFG_NIOS_CPU_TICK_TIMER == 1)
@@ -179,10 +197,28 @@
 #define CFG_NIOS_TMRBASE	CFG_NIOS_CPU_TIMER1 /* TIMER1 as tick	*/
 #define CFG_NIOS_TMRIRQ		CFG_NIOS_CPU_TIMER1_IRQ
 
+#if	(CFG_NIOS_CPU_TIMER1_FP == 1)		    /* fixed period */
+
 #if	(CFG_NIOS_CPU_TIMER1_PER >= CFG_HZ)
 #define CFG_NIOS_TMRMS		(CFG_NIOS_CPU_TIMER1_PER / CFG_HZ)
 #else
-#error *** CFG_ERROR: you have to use a timer periode of more than CFG_HZ
+#error *** CFG_ERROR: you have to use a timer periode greater than CFG_HZ
+#endif
+
+#undef	CFG_NIOS_TMRCNT	/* no preloadable counter value */
+
+#elif	(CFG_NIOS_CPU_TIMER1_FP == 0)		    /* variable period */
+
+#if	(CFG_HZ <= 1000)
+#define CFG_NIOS_TMRMS		(1000 / CFG_HZ)
+#else
+#error *** CFG_ERROR: sorry, CFG_HZ have to be less than 1000
+#endif
+
+#define	CFG_NIOS_TMRCNT		(CONFIG_SYS_CLK_FREQ / CFG_HZ)
+
+#else
+#error *** CFG_ERROR: you have to define CFG_NIOS_CPU_TIMER1_FP correct
 #endif
 
 #endif	/* CFG_NIOS_CPU_TICK_TIMER */