On Fri, Aug 24, 2007 at 01:21:57AM +0200, Guennadi Liakhovetski wrote: > On Wed, 22 Aug 2007, Olof Johansson wrote: > > > With the I/O space rewrite by BenH, the legacy_serial serial_dev_init() > > initcall is now called before I/O space is setup, but it's dependent on > > it being available. > > > > Since there's no way to make dependencies between initcalls, we'll just > > have to move it to device_initcall(). Yes, it's suboptimal but I'm not > > aware of any better solution at this time. > > Do I understand it right, that with this change all UARTs, controlled by > legacy_serial will be initialized later, and that for example console > output will be first possible later?
Yes, unfortunately. Unless they've got a udbg driver, since that would give console output during early boot anyway (even without using EARLY_DEBUG). > Maybe, if there is really no other > possibility for I/O space devices, we could have both calls > > arch_initcall(serial_mem_dev_init); > device_initcall(serial_io_dev_init); > > so, that at least MEMIO based UARTs could still initialize as before? That's quite a hack, I hope we can avoid it. Maybe Ben has some suggestion on how to get the IO setup earlier instead. -Olof _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
