[ECOS] sdram scrubbing and MMU enabling.

[Mark Salter]

>>>>> Mynampati, Venkata S writes:

> Hi 
> in hal_platform_setup.h ( iq80310/include), i noticed that we are
> enabling MMU and then scrubbing sdram starting from RAM_BASE i.e A0000000.
> Now, my doubt is:
> since we have mapped the first 4K of RAM to flash,
> 	[ mmu_table_rambase:
> 	        // Map 4k page at 0xa0000000 virt --> 0x00000000 physical
> 	        //   Read-Write, cacheable, non-bufferable ]
> does that mean writing a 0x00 to a0000000 is same as writing to flash?
> Am i missing something here?

No, its a problem. It came up this week on the ARM linux kernel mailing list.
I'm working on a fix.

--Mark