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Hi Alan, On Friday 24 November 2006 12:41, Alan wrote: > On Fri, 24 Nov 2006 11:44:05 +0100 > > > Cyrix 5520 and Cyrix 5530 do interrupt routing in the same way. But the > > (pirq-1)^1 expression to set a route always sets the wrong nibble, so > > INTA/INTB and INTC/INTD are permuted and do not work as expected. > > > > Signed-off-by: Juergen Beisert <juergen.beisert@weihenstephan.org> > > NAK > > This will then break other boards. As far as I can tell there is no > "correct" answer here for 5530 based hardware. The existing setup makes > most random CS5520/30 based PC systems like the Palmax laptops work if the > irq router is used, your change will break them Hmmmm, as I understand the source, it let the routing register entries unchanged if the BIOS did it before. This is why it (IMHO) works. But if this routine tries to set a new route it fails due to it writes the wrong register nibble. But maybe I'm wrong, I will read the source again (and try to get a CS5520 datasheet). > Given the choice between LinuxBIOS and the rest of the world then the > rest of the world needs to win. ACK. :-) Juergen - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||
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