Initial file dump from open source releaseHEADmaster

1 files changed, 48 insertions, 0 deletions

diff --git a/arch/unicore32/include/asm/io.h b/arch/unicore32/include/asm/io.h
new file mode 100644
index 00000000..39decb6e
--- /dev/null
+++ b/arch/unicore32/include/asm/io.h
@@ -0,0 +1,48 @@
+/*
+ * linux/arch/unicore32/include/asm/io.h
+ *
+ * Code specific to PKUnity SoC and UniCore ISA
+ *
+ * Copyright (C) 2001-2010 GUAN Xue-tao
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __UNICORE_IO_H__
+#define __UNICORE_IO_H__
+
+#ifdef __KERNEL__
+
+#include <asm/byteorder.h>
+#include <asm/memory.h>
+
+#define PCI_IOBASE	PKUNITY_PCILIO_BASE
+#include <asm-generic/io.h>
+
+/*
+ * __uc32_ioremap and __uc32_ioremap_cached takes CPU physical address.
+ */
+extern void __iomem *__uc32_ioremap(unsigned long, size_t);
+extern void __iomem *__uc32_ioremap_cached(unsigned long, size_t);
+extern void __uc32_iounmap(volatile void __iomem *addr);
+
+/*
+ * ioremap and friends.
+ *
+ * ioremap takes a PCI memory address, as specified in
+ * Documentation/io-mapping.txt.
+ *
+ */
+#define ioremap(cookie, size)		__uc32_ioremap(cookie, size)
+#define ioremap_cached(cookie, size)	__uc32_ioremap_cached(cookie, size)
+#define ioremap_nocache(cookie, size)	__uc32_ioremap(cookie, size)
+#define iounmap(cookie)			__uc32_iounmap(cookie)
+
+#define HAVE_ARCH_PIO_SIZE
+#define PIO_OFFSET		(unsigned int)(PCI_IOBASE)
+#define PIO_MASK		(unsigned int)(IO_SPACE_LIMIT)
+#define PIO_RESERVED		(PIO_OFFSET + PIO_MASK + 1)
+
+#endif	/* __KERNEL__ */
+#endif	/* __UNICORE_IO_H__ */