On Jul 11, 2007, at 3:56 PM, Arnd Bergmann wrote:

> On Wednesday 11 July 2007, Josh Boyer wrote:
>> +#elif defined(CONFIG_40x)
>> +/* 40x-style software loaded TLB */
>> +#  include <asm/mmu-4xx.h>
>>  #elif defined(CONFIG_44x)
>>  /* 44x-style software loaded TLB */
>>  #  include <asm/mmu-44x.h>
>
> If you call it mmu-4xx, shouldn't it be used
> for 44x as well? I would think this either
> should be
>
>> +#elif defined(CONFIG_4xx)
>> +/* 40x-style software loaded TLB */
>> +#  include <asm/mmu-4xx.h>
>> -#elif defined(CONFIG_44x)
>> -/* 44x-style software loaded TLB */
>> -#  include <asm/mmu-44x.h>
>
> or
>
>> +#elif defined(CONFIG_40x)
>> +/* 40x-style software loaded TLB */
>> +#  include <asm/mmu-40x.h>
>>  #elif defined(CONFIG_44x)
>>  /* 44x-style software loaded TLB */
>>  #  include <asm/mmu-44x.h>
>
> Is it actually feasible to get to a point where
> you can build a kernel that boots on both
> 40x and 44x, or is it just too different?

I'm guessing its too different since 40x probably has a real mode and  
44x doesnt.

However, I agree we should go ahead and rename 4xx to 40x at this  
point in arch/powerpc.

- k
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