On Tue, 2008-04-01 at 14:12 -0700, Leonid wrote: > Hi: > > I am trying to read from NOR flash, located on address 0xfc000000, on my
It's at 0x1fc000000 IIRC. > TLB entries look strange though. That what it was on u-boot stage: > > 440EPx>tlb 0 10 > IDX TID EPN SIZE VTS RPN USER WIMGE USRSVC > 0 : 00 40000000 256MB V0 -> 0_00000000 U:0000 -I-G- XWRXWR > 1 : 00 00000000 256MB V0 -> 0_00000000 U:0000 -I-G- XWRXWR > 2 : 00 c0000000 256MB V0 -> 1_c0000000 U:0000 -I-G- XWRXWR > 3 : 00 f0000000 256MB V0 -> 1_f0000000 U:0000 WI-G- XWRXWR See. Virtual is 0xf0000000, physical is 0x1f0000000. > On Linux stage it looks rather different: I don't even see your entry in here. Likely because the TLB is small and it's gone by the time you do the dump > Probably under MMU it should look this way? How to use mmap() then? Try mmap64 on the real physical address and see if that helps. josh _______________________________________________ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded
