CPU15 errata workaround for 8xx by WD

Wolfgang Denk wd at denx.de
Mon Feb 14 07:08:42 EST 2005

Dear Jocke,

sorry for the late reply.

In message <BCEFJBPJCGFCNMMMIDBHOEPBCJAA.Joakim.Tjernlund at lumentis.se> you wrote:
> Had a look at your CPU15 errata workaround for 8xx and I have a comment
> or two:
> 1) I think you should make the sysctl support a compile time option
>    as the overhead for sysctl support in the TLB handler is 6 instr. when
>    the fix itself is only 4 instr.

You are right.

> 2) You placed the workaround in the middle of the CPU6 workaround which will
>    disable the CPU6 workaround(I think). Move it before the #ifdef CONFIG_8xx_CPU6
>    and you should be fine.

You are right again - we fixed this in our CVS tree now.

Best regards,

Wolfgang Denk

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Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
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