> > In message <000b01c0d795$c3e15f80$8021690a at huawei.com> you wrote: > > > > > The kernel is loaded with ppcboot and the tftpboot commando. To trace, I > > > used mpc8bug. > ... > > > I set a breakpoint at the entry of the __start routine. After passing > > > the turn_on_mmu label, it returns with an rfi and hangs. > > > > This is exactly what I meet now. > > If you have good solutions, please let me know. > > Use a debugger that understands the MMU, like the BDI2000 by Abatron. > > In any case, make sure the DER does not trap into BDM mode on normal > MMU work, i. e. set it to something like 0x2002000F. >
My board use Powerpc 750. Does 750 has DER? machael ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
