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add i.MX27 ahb clock function

This commit is contained in:
Sascha Hauer 2007-10-10 09:44:21 +02:00
parent a6c86a0b1b
commit 1285a35949
2 changed files with 13 additions and 0 deletions
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12
arch/arm/mach-imx/speed-imx27.c
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@ -50,6 +50,18 @@ ulong imx_get_armclk(void)
return fref / div;
}
ulong imx_get_ahbclk(void)
{
ulong cscr = CSCR;
ulong fref = imx_get_mpllclk();
ulong div;
div = ((cscr >> 8) & 0x3) + 1;
return fref / div;
}
ulong imx_get_spllclk(void)
{
ulong cscr = CSCR;

1
include/asm-arm/arch-imx/clock.h
View File

@ -20,5 +20,6 @@ ulong imx_get_bclk(void);
ulong imx_get_perclk1(void);
ulong imx_get_perclk2(void);
ulong imx_get_perclk3(void);
ulong imx_get_ahbclk(void);
#endif /* __ASM_ARCH_CLOCK_H */