On Fri, Sep 06, 2002 at 01:32:12PM -0400, Dayton, Dean wrote: > I have been trying to port Linux 2.4.18-pre2 to the MPC8266ADS board. I > grabbed the SCC uart.c from 2.5.31.
Why did you grab a file from 2.5.31? And is there any reason you aren't using 2.4.18 final or 2.4.19 final instead ? > The kernel loads and runs, the ramdisk is uncompressed and mounted. Then I > take an interrupt with SIVEC=0. SIVEC is now 0 everytime it is read, this > causes do_IRQ() to go into an endless loop. [snip] > - if (irq >= 0) > + if (irq > 0) > ppc_irq_dispatch_handler() [snip] > This appears to solve (or at least hide) my problem. Has anyone else run > into this? I think it is occuring during the open of the console port (SCC > 1). I ran into the same thing while trying to run on an EST8260 using an SMC > as the console. Am I simply covering up a problem with a misconfigured > device driver? I think the problem is you're using a kernel which doesn't have the 8260 irq function updated to return -1 when there's nothing pending.. Can you verify that this is a problem with 2.4.19 or 2.4.18 ? -- Tom Rini (TR1265) http://gate.crashing.org/~trini/ ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
