---

yaml --- r: 10049 b: refs/heads/master c: a7ce8ed h: refs/heads/master i: 10047: 4b300c3 v: v3
git-mirror · Oct 20, 2005 · 500a985 · 500a985
1 parent 01b9c5a
commit 500a985
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Showing 2 changed files with 12 additions and 5 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: b2640b420a806c91f6b8799314ca96bb88a246d2
+refs/heads/master: a7ce8edc8232da51dc3a804ec9c734019d115b40
diff --git a/trunk/include/asm-arm/arch-s3c2410/regs-clock.h b/trunk/include/asm-arm/arch-s3c2410/regs-clock.h
@@ -18,7 +18,8 @@
  *    10-Feb-2005 Ben Dooks	    Fixed CAMDIVN address (Guillaume Gourat)
  *    10-Mar-2005 Lucas Villa Real  Changed S3C2410_VA to S3C24XX_VA
  *    27-Aug-2005 Ben Dooks	    Add clock-slow info
- */
+ *    20-Oct-2005 Ben Dooks	    Fixed overflow in PLL (Guillaume Gourat)
+*/
 
 #ifndef __ASM_ARM_REGS_CLOCK
 #define __ASM_ARM_REGS_CLOCK "$Id: clock.h,v 1.4 2003/04/30 14:50:51 ben Exp $"
@@ -83,10 +84,13 @@
 
 #ifndef __ASSEMBLY__
 
+#include <asm/div64.h>
+
 static inline unsigned int
-s3c2410_get_pll(int pllval, int baseclk)
+s3c2410_get_pll(unsigned int pllval, unsigned int baseclk)
 {
-	int mdiv, pdiv, sdiv;
+	unsigned int mdiv, pdiv, sdiv;
+	uint64_t fvco;
 
 	mdiv = pllval >> S3C2410_PLLCON_MDIVSHIFT;
 	pdiv = pllval >> S3C2410_PLLCON_PDIVSHIFT;
@@ -96,7 +100,10 @@ s3c2410_get_pll(int pllval, int baseclk)
 	pdiv &= S3C2410_PLLCON_PDIVMASK;
 	sdiv &= S3C2410_PLLCON_SDIVMASK;
 
-	return (baseclk * (mdiv + 8)) / ((pdiv + 2) << sdiv);
+	fvco = (uint64_t)baseclk * (mdiv + 8);
+	do_div(fvco, (pdiv + 2) << sdiv);
+
+	return (unsigned int)fvco;
 }
 
 #endif /* __ASSEMBLY__ */