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

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Linus Torvalds
2005-10-21 12:23:07 -07:00
parent cffc7b38a2 d185663760
commit 2c86c83bf4
4 changed files with 48 additions and 14 deletions
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include/asm-arm/arch-s3c2410/regs-clock.h
+17 -4
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@@ -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;
@@ -96,7 +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__ */