microblaze: Enable PCI, missing files

[safe/jmp/linux-2.6] / arch / microblaze / pci / iomap.c

diff --git a/arch/microblaze/pci/iomap.c b/arch/microblaze/pci/iomap.c
new file mode 100644 (file)
index 0000000..3fbf16f
--- /dev/null
+++ b/arch/microblaze/pci/iomap.c
@@ -0,0 +1,39 @@
+/*
+ * ppc64 "iomap" interface implementation.
+ *
+ * (C) Copyright 2004 Linus Torvalds
+ */
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/mm.h>
+#include <asm/io.h>
+#include <asm/pci-bridge.h>
+
+void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
+{
+       resource_size_t start = pci_resource_start(dev, bar);
+       resource_size_t len = pci_resource_len(dev, bar);
+       unsigned long flags = pci_resource_flags(dev, bar);
+
+       if (!len)
+               return NULL;
+       if (max && len > max)
+               len = max;
+       if (flags & IORESOURCE_IO)
+               return ioport_map(start, len);
+       if (flags & IORESOURCE_MEM)
+               return ioremap(start, len);
+       /* What? */
+       return NULL;
+}
+EXPORT_SYMBOL(pci_iomap);
+
+void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
+{
+       if (isa_vaddr_is_ioport(addr))
+               return;
+       if (pcibios_vaddr_is_ioport(addr))
+               return;
+       iounmap(addr);
+}
+EXPORT_SYMBOL(pci_iounmap);