[U-Boot-Users] Command "dcache on" for MPC850 isn't valid

[gshan]

Denk,

Thanks for your quick response. But linux kernel need to turn on data 
cache at head_8xx.S::initial_mmu.

Thanks,
Gavin

Wolfgang Denk wrote:
> In message <461C6D9A.7010001 at alcatel-lucent.com> you wrote:
>   
>> As everyone knew, uboot for MPC850 didn't turn on data cache, but 
>>     
>
> Yes, and for a very good reason, which is explained in detail in the
> README.
>
>   
>> instruction cache is on. In order to test data cache, I added 
>> CFG_CMD_CACHE  for CONFIG_COMMANDS. However, the CPU is spinning once I 
>> issue command "dcache on".
>>
>> Any ideas on this?
>>     
>
> Read the README.
>
> Best regards,
>
> Wolfgang Denk
>
>