On Aug 6, 2008, at 1:02 AM, Grant Likely wrote:

From: Grant Likely <redacted>

ioremap_bat() is useful for things like mapping SoC internally  
memory mapped
register and early text because it allows mappings to devices to be  
setup
early in the boot process where they are needed, and the mappings  
persist
after the MMU is configured.

Without ioremap_bat(), setting up the MMU would cause the early text
mappings to get lost and mostly likely result in a kernel panic on  
the next
attempt at output.

Signed-off-by: Grant Likely <redacted>
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why can't we just do this in ioremap itself?

- k