On Thu, Jul 05, 2007 at 12:03:00PM -0500, Olof Johansson wrote:
> Workaround for errata 4290: The decrementer ticks at half the expected rate
> so load it with half the value it would otherwise be loaded with.
>
>
> Index: 2.6.21/include/asm-powerpc/time.h
> ===================================================================
> --- 2.6.21.orig/include/asm-powerpc/time.h
> +++ 2.6.21/include/asm-powerpc/time.h
> @@ -173,6 +173,13 @@ static inline unsigned int get_dec(void)
>
> static inline void set_dec(int val)
> {
> +#ifdef CONFIG_PPC_PASEMI
> + /* PA6T rev Ax have decrementer ticking at 1/2 tb rate */
> + val >>= 2;
Comment does not match code: looks like a divide by 4 to me!
> + if (!val)
> + val = 1;
> +#endif
> +
> #if defined(CONFIG_40x)
> return; /* Have to let it auto-reload */
> #elif defined(CONFIG_8xx_CPU6)
Gabriel
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