X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=include%2Flinux%2Fio.h;h=c244a0cc9319bc37dfaee08d2c385b638dcbc990;hb=e7b58f5259a81dbd9fbfea79408d272f44eb894f;hp=420e2fdf26f654a4d89b7853340783dad432fffe;hpb=71d530cd1b6d97094481002a04c77fea1c8e1c22;p=linux-2.6-omap-h63xx.git

diff --git a/include/linux/io.h b/include/linux/io.h
index 420e2fdf26f..c244a0cc931 100644
--- a/include/linux/io.h
+++ b/include/linux/io.h
@@ -18,9 +18,56 @@
 #ifndef _LINUX_IO_H
 #define _LINUX_IO_H
 
+#include <linux/types.h>
 #include <asm/io.h>
+#include <asm/page.h>
+
+struct device;
 
 void __iowrite32_copy(void __iomem *to, const void *from, size_t count);
 void __iowrite64_copy(void __iomem *to, const void *from, size_t count);
 
+int ioremap_page_range(unsigned long addr, unsigned long end,
+		       unsigned long phys_addr, pgprot_t prot);
+
+/*
+ * Managed iomap interface
+ */
+void __iomem * devm_ioport_map(struct device *dev, unsigned long port,
+			       unsigned int nr);
+void devm_ioport_unmap(struct device *dev, void __iomem *addr);
+
+void __iomem * devm_ioremap(struct device *dev, unsigned long offset,
+			    unsigned long size);
+void __iomem * devm_ioremap_nocache(struct device *dev, unsigned long offset,
+				    unsigned long size);
+void devm_iounmap(struct device *dev, void __iomem *addr);
+
+/**
+ *	check_signature		-	find BIOS signatures
+ *	@io_addr: mmio address to check
+ *	@signature:  signature block
+ *	@length: length of signature
+ *
+ *	Perform a signature comparison with the mmio address io_addr. This
+ *	address should have been obtained by ioremap.
+ *	Returns 1 on a match.
+ */
+
+static inline int check_signature(const volatile void __iomem *io_addr,
+	const unsigned char *signature, int length)
+{
+	int retval = 0;
+	do {
+		if (readb(io_addr) != *signature)
+			goto out;
+		io_addr++;
+		signature++;
+		length--;
+	} while (length);
+	retval = 1;
+out:
+	return retval;
+}
+
 #endif /* _LINUX_IO_H */