Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff

[linux-2.6.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 e5e938b..3436070 100644 (file)
--- a/include/asm-arm/arch-s3c2410/regs-clock.h
+++ b/include/asm-arm/arch-s3c2410/regs-clock.h
@@ -1,7 +1,7 @@
 /* linux/include/asm/arch-s3c2410/regs-clock.h
  *
- * Copyright (c) 2003,2004 Simtec Electronics <linux@simtec.co.uk>
- *                   http://www.simtec.co.uk/products/SWLINUX/
+ * Copyright (c) 2003,2004,2005 Simtec Electronics <linux@simtec.co.uk>
+ *                   http://armlinux.simtec.co.uk/
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -17,7 +17,10 @@
  *    29-Sep-2004 Ben Dooks        Fixed usage for assembly inclusion
  *    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 $"
@@ -65,21 +68,35 @@
 #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)
 
+#define S3C2410_CLKSLOW_UCLK_OFF       (1<<7)
+#define S3C2410_CLKSLOW_MPLL_OFF       (1<<5)
+#define S3C2410_CLKSLOW_SLOW           (1<<4)
+#define S3C2410_CLKSLOW_SLOWVAL(x)     (x)
+#define S3C2410_CLKSLOW_GET_SLOWVAL(x) ((x) & 7)
+
 #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;
@@ -89,7 +106,10 @@ 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__ */