MIPS: Add Cavium OCTEON PCI support.

This patch adds support for PCI and PCIe to the base Cavium OCTEON
processor support.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/include/asm/octeon/octeon.h b/arch/mips/include/asm/octeon/octeon.h
index edc6760..cac9b1a 100644
--- a/arch/mips/include/asm/octeon/octeon.h
+++ b/arch/mips/include/asm/octeon/octeon.h
@@ -245,4 +245,6 @@
 	return cvmx_read64_uint32(address ^ 4);
 }
 
+extern struct cvmx_bootinfo *octeon_bootinfo;
+
 #endif /* __ASM_OCTEON_OCTEON_H */