> James Zipperer wrote: > >> >> >> >> I'm running out of memory in linux on the smp86xx and attempting to >> implement this solution. Did you ever get it to work? No luck for me >> yet. I'm still a bit unclear why you must switch linux to run off DRAM >> 1 instead of leaving it on DRAM 0 and adding an additional call to >> add_memory_region in prom_init for DRAM 1. But then again, I haven't >> gotten that to work yet either :) >> >> >> >> Any info/patches are greatly appreciated. Thanks! >> >> >> > >Typically DRAM 1 must be accessed through the TLB as its address lays >outside of the 512MB window of KSEG[012]. > >The best way to make this memory available to Linux may still be up for >debate. > >David Daney I'm sure this is a dumb question due to the fact that my grasp of the problem is less than acceptable... Can remapped addresses (namely CPU_remap[34]_addr) be used for the call to add_memory_region()? That would allow the address for DRAM 1 to be within the 512MB window of KSEG[012]. I'm unclear whether the CPU_remap addresses count as PHSYICAL or VIRTUAL addresses. I'm guessing that my plan won't work since I tried it and it didn't work. My results were that the kernel booted but didn't report any additional memory available via the 'free' command. Thanks. -James
