Merge master.kernel.org:/home/rmk/linux-2.6-serial

[powerpc.git] / include / asm-arm / arch-s3c2410 / regs-clock.h

diff --git a/include/asm-arm/arch-s3c2410/regs-clock.h b/include/asm-arm/arch-s3c2410/regs-clock.h
index 16f4c3c..6c92faf 100644 (file)
--- a/include/asm-arm/arch-s3c2410/regs-clock.h
+++ b/include/asm-arm/arch-s3c2410/regs-clock.h
@@ -18,7 +18,9 @@
  *    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)
+ *    20-Oct-2005 Ben Dooks        Add masks for DCLK (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 $"
@@ -66,11 +68,16 @@
 #define S3C2410_DCLKCON_DCLK0_UCLK   (1<<1)
 #define S3C2410_DCLKCON_DCLK0_DIV(x) (((x) - 1 )<<4)
 #define S3C2410_DCLKCON_DCLK0_CMP(x) (((x) - 1 )<<8)
+#define S3C2410_DCLKCON_DCLK0_DIV_MASK ((0xf)<<4)
+#define S3C2410_DCLKCON_DCLK0_CMP_MASK ((0xf)<<8)
 
 #define S3C2410_DCLKCON_DCLK1EN             (1<<16)
 #define S3C2410_DCLKCON_DCLK1_PCLK   (0<<17)
 #define S3C2410_DCLKCON_DCLK1_UCLK   (1<<17)
 #define S3C2410_DCLKCON_DCLK1_DIV(x) (((x) - 1) <<20)
+#define S3C2410_DCLKCON_DCLK1_CMP(x) (((x) - 1) <<24)
+#define S3C2410_DCLKCON_DCLK1_DIV_MASK ((0xf) <<20)
+#define S3C2410_DCLKCON_DCLK1_CMP_MASK ((0xf) <<24)
 
 #define S3C2410_CLKDIVN_PDIVN       (1<<0)
 #define S3C2410_CLKDIVN_HDIVN       (1<<1)
@@ -83,10 +90,13 @@
 
 #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;
@@ -96,12 +106,15 @@ 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__ */
 
-#ifdef CONFIG_CPU_S3C2440
+#if defined(CONFIG_CPU_S3C2440) || defined(CONFIG_CPU_S3C2442)
 
 /* extra registers */
 #define S3C2440_CAMDIVN            S3C2410_CLKREG(0x18)
@@ -123,7 +136,9 @@ s3c2410_get_pll(int pllval, int baseclk)
 #define S3C2440_CAMDIVN_HCLK4_HALF   (1<<9)
 #define S3C2440_CAMDIVN_DVSEN        (1<<12)
 
-#endif /* CONFIG_CPU_S3C2440 */
+#define S3C2442_CAMDIVN_CAMCLK_DIV3  (1<<5)
+
+#endif /* CONFIG_CPU_S3C2440 or CONFIG_CPU_S3C2442 */
 
 
 #endif /* __ASM_ARM_REGS_CLOCK */