[PATCH] ioc4: Enable build on non-SN2

The SGI PCI-RT card, based on the SGI IOC4 chip, will be made available on
Altix XE (x86_64) platforms in the near future.  As such it is now a
misnomer for the IOC4 base device driver to live under drivers/sn, and
would complicate builds for non-SN2.

This patch moves the IOC4 base driver code from drivers/sn to drivers/misc,
and updates the associated Makefiles and Kconfig files to allow building on
non-SN2 configs.  Due to the resulting change in link order, it is now
necessary to use late_initcall() for IOC4 subdriver initialization.

[akpm@osdl.org: __udivdi3 fix]
[akpm@osdl.org: fix default in Kconfig]
Acked-by: Pat Gefre <pfg@sgi.com>
Acked-by: Jeremy Higdon <jeremy@sgi.com>
Signed-off-by: Brent Casavant <bcasavan@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/Kconfig b/drivers/Kconfig
index 263e86d..f394634 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -14,6 +14,10 @@
 
 source "drivers/block/Kconfig"
 
+# misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
+
+source "drivers/misc/Kconfig"
+
 source "drivers/ide/Kconfig"
 
 source "drivers/scsi/Kconfig"
@@ -52,8 +56,6 @@
 
 source "drivers/hwmon/Kconfig"
 
-source "drivers/misc/Kconfig"
-
 source "drivers/mfd/Kconfig"
 
 source "drivers/media/Kconfig"