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authorMark Brown <broonie@opensource.wolfsonmicro.com>2010-03-22 11:17:26 +0000
committerMark Brown <broonie@opensource.wolfsonmicro.com>2010-03-22 11:17:26 +0000
commitf9b44121b34174ae4f243a568393fc3225842e75 (patch)
tree943f68cd7458d08a9e8809ed0a10b71b23911f3e /arch/microblaze/pci/iomap.c
parent8727b909bb2348d29e62c599cd7a5d610da3760f (diff)
parent220bf991b0366cc50a94feede3d7341fa5710ee4 (diff)
Merge commit 'v2.6.34-rc2' into for-2.6.34
Diffstat (limited to 'arch/microblaze/pci/iomap.c')
-rw-r--r--arch/microblaze/pci/iomap.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/microblaze/pci/iomap.c b/arch/microblaze/pci/iomap.c
new file mode 100644
index 000000000000..3fbf16f4e16c
--- /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);