[POWERPC] Support for DCR based MPIC
authorBenjamin Herrenschmidt <benh@kernel.crashing.org>
Sat, 11 Nov 2006 06:24:55 +0000 (17:24 +1100)
committerPaul Mackerras <paulus@samba.org>
Mon, 4 Dec 2006 05:08:35 +0000 (16:08 +1100)
commitfbf0274e43b7e17ee740fee2d693932be093d56d
treece4719d4c89cdcb8eb4b57f5cf20fecb106a62e2
parent1be3770aa9220324e54851d1be7c879942f79620
[POWERPC] Support for DCR based MPIC

This patch implements support for DCR based MPIC implementations. Such
implementations have the MPIC_USES_DCR flag set and don't use the phys_addr
argument of mpic_alloc (they require a valid dcr mapping in the device node)

This version of the patch can use a little bif of cleanup still (I can
probably consolidate rb->dbase/doff, at least once I'm sure on how the
hardware is actually supposed to work vs. possible simulator issues) and
it should be possible to build a DCR-only version of the driver. I need
to cleanup a bit the CONFIG_* handling for that and probably introduce
CONFIG_MPIC_MMIO and CONFIG_MPIC_DCR.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
arch/powerpc/sysdev/mpic.c
include/asm-powerpc/mpic.h