microblaze: Enable PCI, missing files

There are two parts of changes. The first is just enable
PCI in Makefiles and in Kconfig. The second is the rest of
missing files. I didn't want to add it with previous patch
because that patch is too big.

Current Microblaze toolchain has problem with weak symbols
that's why is necessary to apply this changes to be possible
to compile pci support.
Xilinx knows about this problem.

Signed-off-by: Michal Simek <monstr@monstr.eu>

1 files changed, 15 insertions, 1 deletions

diff --git a/arch/microblaze/include/asm/io.h b/arch/microblaze/include/asm/io.h
index f82df5d221a8..06d804b15a51 100644
--- a/arch/microblaze/include/asm/io.h
+++ b/arch/microblaze/include/asm/io.h
@@ -17,7 +17,21 @@
 #include <linux/mm.h>          /* Get struct page {...} */
 #include <asm-generic/iomap.h>
 
-#define PCI_DRAM_OFFSET 0
+#ifndef CONFIG_PCI
+#define _IO_BASE        0
+#define _ISA_MEM_BASE   0
+#define PCI_DRAM_OFFSET 0
+#else
+#define _IO_BASE        isa_io_base
+#define _ISA_MEM_BASE   isa_mem_base
+#define PCI_DRAM_OFFSET pci_dram_offset
+#endif
+
+extern unsigned long isa_io_base;
+extern unsigned long pci_io_base;
+extern unsigned long pci_dram_offset;
+
+extern resource_size_t isa_mem_base;
 
 #define IO_SPACE_LIMIT (0xFFFFFFFF)