Am 24.05.2010 um 16:22 schrieb Stefan Reinauer:
On 5/24/10 4:18 PM, Andreas Färber wrote:
phys = ofmem_claim_phys_( addr, size, align, 0,get_ram_size() - 0x00100000 - (2 << 15) - (32 + 32 + 64) * 1024, 1 /* reverse */ );
virt = ofmem_claim_virt_( addr, size, align, 0,get_ram_size() - 0x00100000 - (2 << 15) - (32 + 32 + 64) * 1024, 1 /* reverse */ );
This kind of yells for a comment explaining what those numbers are.
These are ppc-specific magic numbers in common code where they have no business being - please don't apply!
The question is, why does claim overwrite the 0x07ed0000 identity map of length 1245184, that I see no in my debug output now, with a 0x07f00000 map when using the vanilla OpenBIOS code? And do we need to supply platform-specific functions arch_get_ram_top and arch_get_ram_bottom, or is my approach just working around the problem?
Andreas