Linh Dang wrote: >On 6 Jul 2004, tnt at 246tnt.com wrote: >[...] > > >>I wonder how it works. At the mapin_ram(), my BAT are overwritten, >> >> > >No they're not. the BAT configurations (which will be used later by >load_up_mmu) are written, NOT the BATs themselves. > > > Ok, thanks. That's what I've missed.
>>then the "MMU:setio" progress is called, but at this point, my BAT >>is no longer active and my setup_io_mappings is not yet >>called. Shouldn't that crash ? During these two calls, the uart zone >>shouldn't be mapped. >> >> > >setup_io_mappings is similar to mapin_ram. the configurations are >changed but not the BATs. > > Sylvain Munaut ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
