nds32: ag101/ag102: Fix setting lastdec and now values

The timer3 counter unit for lastdesc and now values are inconsistent in current code. The unit of "readl(&tmr->timer3_counter) / (CONFIG_SYS_CLK_FREQ / 2)" is second. However, CONFIG_SYS_HZ is defined as 1000 in board config file. This means the accuracy of "lastdec" and "now" should be in millisecond, thus fix the equation to set lastdec and now variables accordingly. Signed-off-by: Axel Lin <[email protected]>
deepcube · Jul 24, 2013 · 4fc9670 · 4fc9670
1 parent e3c58b0
commit 4fc9670
Show file tree

Hide file tree

Showing 2 changed files with 8 additions and 6 deletions.
diff --git a/arch/nds32/cpu/n1213/ag101/timer.c b/arch/nds32/cpu/n1213/ag101/timer.c
@@ -86,7 +86,8 @@ void reset_timer_masked(void)
 #ifdef CONFIG_FTTMR010_EXT_CLK
 	lastdec = readl(&tmr->timer3_counter) / (TIMER_CLOCK / CONFIG_SYS_HZ);
 #else
-	lastdec = readl(&tmr->timer3_counter) / (CONFIG_SYS_CLK_FREQ / 2);
+	lastdec = readl(&tmr->timer3_counter) /
+			(CONFIG_SYS_CLK_FREQ / 2 / CONFIG_SYS_HZ);
 #endif
 	timestamp = 0;		/* start "advancing" time stamp from 0 */
 
@@ -110,8 +111,8 @@ ulong get_timer_masked(void)
 #ifdef CONFIG_FTTMR010_EXT_CLK
 	ulong now = readl(&tmr->timer3_counter) / (TIMER_CLOCK / CONFIG_SYS_HZ);
 #else
-	ulong now = readl(&tmr->timer3_counter) / \
-			(CONFIG_SYS_CLK_FREQ / 2 / 1024);
+	ulong now = readl(&tmr->timer3_counter) /
+			(CONFIG_SYS_CLK_FREQ / 2 / CONFIG_SYS_HZ);
 #endif
 
 	debug("%s(): now = %lx, lastdec = %lx\n", __func__, now, lastdec);

diff --git a/arch/nds32/cpu/n1213/ag102/timer.c b/arch/nds32/cpu/n1213/ag102/timer.c
@@ -86,7 +86,8 @@ void reset_timer_masked(void)
 #ifdef CONFIG_FTTMR010_EXT_CLK
 	lastdec = readl(&tmr->timer3_counter) / (TIMER_CLOCK / CONFIG_SYS_HZ);
 #else
-	lastdec = readl(&tmr->timer3_counter) / (CONFIG_SYS_CLK_FREQ / 2);
+	lastdec = readl(&tmr->timer3_counter) /
+			(CONFIG_SYS_CLK_FREQ / 2 / CONFIG_SYS_HZ);
 #endif
 	timestamp = 0;		/* start "advancing" time stamp from 0 */
 
@@ -110,8 +111,8 @@ ulong get_timer_masked(void)
 #ifdef CONFIG_FTTMR010_EXT_CLK
 	ulong now = readl(&tmr->timer3_counter) / (TIMER_CLOCK / CONFIG_SYS_HZ);
 #else
-	ulong now = readl(&tmr->timer3_counter) / \
-			(CONFIG_SYS_CLK_FREQ / 2 / 1024);
+	ulong now = readl(&tmr->timer3_counter) /
+			(CONFIG_SYS_CLK_FREQ / 2 / CONFIG_SYS_HZ);
 #endif
 
 	debug("%s(): now = %lx, lastdec = %lx\n", __func__, now, lastdec);