[RFC PATCH] icecube/lite5200b: fix OF_TBCLK (timebase-frequency) calculation
Grant Likely
grant.likely at secretlab.ca
Thu Mar 8 03:25:58 EST 2007
On 3/7/07, Domen Puncer <domen.puncer at telargo.com> wrote:
> I tracked jiffies (on Linux) incrementing twice as fast on
> lite5200b to this ("timebase-frequency" property).
>
> G2 core reference manual says decrementer and time base
> are decreasing/increasing once every 4 bus clock cycles.
>
> Was there a reason this was busfreq/8?
Simply sloppyness on my part.
Signed-off-by: Grant Likely <grant.likely at secretlab.ca>
>
>
> Domen
> ---
> include/configs/IceCube.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> Index: u-boot.git/include/configs/IceCube.h
> ===================================================================
> --- u-boot.git.orig/include/configs/IceCube.h
> +++ u-boot.git/include/configs/IceCube.h
> @@ -182,7 +182,7 @@
>
> #define OF_CPU "PowerPC,5200 at 0"
> #define OF_SOC "soc5200 at f0000000"
> -#define OF_TBCLK (bd->bi_busfreq / 8)
> +#define OF_TBCLK (bd->bi_busfreq / 4)
> #define OF_STDOUT_PATH "/soc5200 at f0000000/serial at 2000"
>
> /*
> _______________________________________________
> Linuxppc-embedded mailing list
> Linuxppc-embedded at ozlabs.org
> https://ozlabs.org/mailman/listinfo/linuxppc-embedded
>
--
Grant Likely, B.Sc. P.Eng.
Secret Lab Technologies Ltd.
grant.likely at secretlab.ca
(403) 399-0195
More information about the Linuxppc-embedded
mailing list