[PATCH 2 of 2] tpm: updates for new hardware

[Benjamin Herrenschmidt]

> Why don't you use ioread8() instead of defining atmel_getb()?
> 
> You'd still need something PPC64-specific to initialize the iomem cookie,
> but the accessors would go away.
> 
> Unfortunately, ioread8() and associated interfaces aren't mentioned
> under Documentation/, but there are some hints in lib/iomap.c.

Yes, I was about to reply the same thing :)

Ben.