1 files changed, 163 insertions, 0 deletions
diff --git a/arch/microblaze/include/asm/io.h b/arch/microblaze/include/asm/io.h
new file mode 100644
index 0000000..584cbce
--- /dev/null
+++ b/arch/microblaze/include/asm/io.h
@@ -0,0 +1,163 @@
+/*
+ * include/asm-microblaze/io.h -- Misc I/O operations
+ *
+ *  Copyright (C) 2003     John Williams <jwilliams@itee.uq.edu.au>
+ *  Copyright (C) 2001,02  NEC Corporation
+ *  Copyright (C) 2001,02  Miles Bader <miles@gnu.org>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file COPYING in the main directory of this
+ * archive for more details.
+ *
+ * Written by Miles Bader <miles@gnu.org>
+ * Microblaze port by John Williams
+ */
+
+#ifndef __MICROBLAZE_IO_H__
+#define __MICROBLAZE_IO_H__
+
+#include <asm/types.h>
+
+#define IO_SPACE_LIMIT 0xFFFFFFFF
+
+#define readb(addr) \
+  ({ unsigned char __v = (*(volatile unsigned char *) (addr)); __v; })
+#define readw(addr) \
+  ({ unsigned short __v = (*(volatile unsigned short *) (addr)); __v; })
+#define readl(addr) \
+	({ unsigned int __v = (*(volatile unsigned int *) (addr)); __v; })
+
+#define writeb(b, addr) \
+  (void)((*(volatile unsigned char *) (addr)) = (b))
+#define writew(b, addr) \
+  (void)((*(volatile unsigned short *) (addr)) = (b))
+#define writel(b, addr) \
+  (void)((*(volatile unsigned int *) (addr)) = (b))
+
+#define memset_io(a,b,c)        memset((void *)(a),(b),(c))
+#define memcpy_fromio(a,b,c)    memcpy((a),(void *)(b),(c))
+#define memcpy_toio(a,b,c)      memcpy((void *)(a),(b),(c))
+
+#define inb(addr)	readb (addr)
+#define inw(addr)	readw (addr)
+#define inl(addr)	readl (addr)
+#define outb(x, addr)	((void) writeb (x, addr))
+#define outw(x, addr)	((void) writew (x, addr))
+#define outl(x, addr)	((void) writel (x, addr))
+
+/* Some #definitions to keep strange Xilinx code happy */
+#define in_8(addr)	readb (addr)
+#define in_be16(addr)	readw (addr)
+#define in_be32(addr)	readl (addr)
+
+#define out_8(addr,x )	outb (x,addr)
+#define out_be16(addr,x )	outw (x,addr)
+#define out_be32(addr,x )	outl (x,addr)
+
+
+#define inb_p(port)		inb((port))
+#define outb_p(val, port)	outb((val), (port))
+#define inw_p(port)		inw((port))
+#define outw_p(val, port)	outw((val), (port))
+#define inl_p(port)		inl((port))
+#define outl_p(val, port)	outl((val), (port))
+
+/* Some defines to keep the MTD flash drivers happy */
+
+#define __raw_readb readb
+#define __raw_readw readw
+#define __raw_readl readl
+#define __raw_writeb writeb
+#define __raw_writew writew
+#define __raw_writel writel
+
+static inline void io_insb (unsigned long port, void *dst, unsigned long count)
+{
+	unsigned char *p = dst;
+	while (count--)
+		*p++ = inb (port);
+}
+static inline void io_insw (unsigned long port, void *dst, unsigned long count)
+{
+	unsigned short *p = dst;
+	while (count--)
+		*p++ = inw (port);
+}
+static inline void io_insl (unsigned long port, void *dst, unsigned long count)
+{
+	unsigned long *p = dst;
+	while (count--)
+		*p++ = inl (port);
+}
+
+static inline void
+io_outsb (unsigned long port, const void *src, unsigned long count)
+{
+	const unsigned char *p = src;
+	while (count--)
+		outb (*p++, port);
+}
+static inline void
+io_outsw (unsigned long port, const void *src, unsigned long count)
+{
+	const unsigned short *p = src;
+	while (count--)
+		outw (*p++, port);
+}
+static inline void
+io_outsl (unsigned long port, const void *src, unsigned long count)
+{
+	const unsigned long *p = src;
+	while (count--)
+		outl (*p++, port);
+}
+
+#define outsb(a,b,l) io_outsb(a,b,l)
+#define outsw(a,b,l) io_outsw(a,b,l)
+#define outsl(a,b,l) io_outsl(a,b,l)
+
+#define insb(a,b,l) io_insb(a,b,l)
+#define insw(a,b,l) io_insw(a,b,l)
+#define insl(a,b,l) io_insl(a,b,l)
+
+
+#define iounmap(addr)				((void)0)
+#define ioremap(physaddr, size)			(physaddr)
+#define ioremap_nocache(physaddr, size)		(physaddr)
+#define ioremap_writethrough(physaddr, size)	(physaddr)
+#define ioremap_fullcache(physaddr, size)	(physaddr)
+
+static inline void sync(void)
+{
+}
+
+/*
+ * Given a physical address and a length, return a virtual address
+ * that can be used to access the memory range with the caching
+ * properties specified by "flags".
+ */
+#define MAP_NOCACHE	(0)
+#define MAP_WRCOMBINE	(0)
+#define MAP_WRBACK	(0)
+#define MAP_WRTHROUGH	(0)
+
+static inline void *
+map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags)
+{
+	return (void *)paddr;
+}
+
+/*
+ * Take down a mapping set up by map_physmem().
+ */
+static inline void unmap_physmem(void *vaddr, unsigned long flags)
+{
+
+}
+
+static inline phys_addr_t virt_to_phys(void * vaddr)
+{
+	return (phys_addr_t)(vaddr);
+}
+
+#endif /* __MICROBLAZE_IO_H__ */