---------- Forwarded message ---------- Date: Mon, 10 Feb 2003 13:49:49 +0100 (CET) From: Vivien Chappelier <glaurung@vivienc.net1.nerim.net> To: Guido Guenther <agx@gandalf.physik.uni-konstanz.de> Subject: Re: porting arcboot On Mon, 10 Feb 2003, Guido Guenther wrote: > > Can't we read the load address (and needed space) from the elf header > s/load address/kernel's load address/ Yes, that's what we do already. I was speaking of arcboot load address, sorry this wasn't very clear :) > In case we find a unique place for arcboot in the memory map of the > different subarches. On the O2 physical memory starts from KSEG0 (0x80000000), the kernel is loaded there for 32-bit version or in XKPHYS (0x9800000000000000) for the 64-bit version. I don't really know where the PROM code and data is located precisely, but loading something (arcboot or a kernel) at 0x88000000 as with ip22 is not an option; the PROM says something like 'loading there would overwrite an existing program'. Why is kernel/arcboot loaded at 0x88000000 on ip22? Is KSEG0 an option for ip22? BTW, what's the status of mips64/ip22? I guess the PROM doesn't support 64-bit as on the ip32, so arcboot with 64-bit support would be needed as well, right? Vivien.
