[ECOS] sdram scrubbing and MMU enabling.

[Mynampati, Venkata S.]

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?

Venkat

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