[U-Boot-Users] dynamic setting of CONFIG_SYS_CLK_FREQ

Kumar Gala
2004-04-22T19:51:16Z

thanks,

I realized that sys_clk is not defined, I was going to add it for 85xx
since none of the other defines in gd currently represent the value.
The other option would be to have a function return the proper
frequency (as suggested earlier in the thread). Any suggestions as to
which option would be preferred?

I'm able to initialize gd->sys_clk (CONFIG_SYS_CLK_FREQ) as the first
thing done in board_early_init_f.

- kumar

On Apr 22, 2004, at 2:44 PM, Wolfgang Denk wrote:

> In message <89194C60-9482-11D8-9316-000393DBC2E8@motorola.com> you
> wrote:
>> How bad would it be to do something like:
>>
>> #define CONFIG_SYS_CLK_FREQ (gd->sys_clk)
>
> Thisi s perfectly legal.
>
>> or is this what you meant by 'provide a suitable init fuction'
>
> No. I meant: you can do something like the above, but you must make
> sure that there is code to initialize gd->sys_clk before anyone
> attempts to access it.
>
> And BTW: sys_clk is not a member of the struct "gd".
>
> Best regards,
>
> Wolfgang Denk
>
> --
> Software Engineering: Embedded and Realtime Systems, Embedded Linux
> Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de
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