[PATCH] ppc: Remove powermac support from ARCH=ppc

This makes it possible to build kernels for PReP and/or CHRP
with ARCH=ppc by removing the (non-building) powermac support.
It's now also possible to select PReP and CHRP independently.
Powermac users should now build with ARCH=powerpc instead of
ARCH=ppc.  (This does mean that it is no longer possible to
build a 32-bit kernel for a G5.)

Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/include/asm-ppc/prom.h b/include/asm-ppc/prom.h
index eb317a0806e4..6d431d6fb022 100644
--- a/include/asm-ppc/prom.h
+++ b/include/asm-ppc/prom.h
@@ -167,6 +167,14 @@ extern int of_address_to_resource(struct device_node *dev, int index,
 extern int of_pci_address_to_resource(struct device_node *dev, int bar,
                                       struct resource *r);
 
+#ifndef CONFIG_PPC_OF
+/*
+ * Fallback definitions for builds where we don't have prom.c included.
+ */
+#define machine_is_compatible(x)                0
+#define of_find_compatible_node(f, t, c)        NULL
+#define get_property(p, n, l)                   NULL
+#endif
 
 #endif /* _PPC_PROM_H */
 #endif /* __KERNEL__ */