1 files changed, 135 insertions, 0 deletions
diff --git a/include/asm-blackfin/io-kernel.h b/include/asm-blackfin/io-kernel.h
new file mode 100644
index 0000000..0b0572f
--- /dev/null
+++ b/include/asm-blackfin/io-kernel.h
@@ -0,0 +1,135 @@
+/*
+ * U-boot - io-kernel.h
+ *
+ * Copyright (c) 2005 blackfin.uclinux.org
+ *
+ * (C) Copyright 2000-2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _BLACKFIN_IO_H
+#define _BLACKFIN_IO_H
+
+#ifdef __KERNEL__
+
+#include <linux/config.h>
+
+/*
+ * These are for ISA/PCI shared memory _only_ and should never be used
+ * on any other type of memory, including Zorro memory. They are meant to
+ * access the bus in the bus byte order which is little-endian!.
+ *
+ * readX/writeX() are used to access memory mapped devices. On some
+ * architectures the memory mapped IO stuff needs to be accessed
+ * differently. On the m68k architecture, we just read/write the
+ * memory location directly.
+ */
+/* ++roman: The assignments to temp. vars avoid that gcc sometimes generates
+ * two accesses to memory, which may be undesireable for some devices.
+ */
+#define readb(addr) ({ unsigned char __v = (*(volatile unsigned char *) (addr));asm("ssync;"); __v; })
+#define readw(addr) ({ unsigned short __v = (*(volatile unsigned short *) (addr)); asm("ssync;");__v; })
+#define readl(addr) ({ unsigned int __v = (*(volatile unsigned int *) (addr));asm("ssync;"); __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 __raw_readb readb
+#define __raw_readw readw
+#define __raw_readl readl
+#define __raw_writeb writeb
+#define __raw_writew writew
+#define __raw_writel writel
+#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)	cf_inb((volatile unsigned char*)(addr))
+#define inw(addr)	readw(addr)
+#define inl(addr)	readl(addr)
+#define outb(x,addr)	cf_outb((unsigned char)(x), (volatile unsigned char*)(addr))
+#define outw(x,addr)	((void) writew(x,addr))
+#define outl(x,addr)	((void) writel(x,addr))
+#define inb_p(addr)	inb(addr)
+#define inw_p(addr)	inw(addr)
+#define inl_p(addr)	inl(addr)
+#define outb_p(x,addr)	outb(x,addr)
+#define outw_p(x,addr)	outw(x,addr)
+#define outl_p(x,addr)	outl(x,addr)
+#define insb(port, addr, count)	memcpy((void*)addr, (void*)port, count)
+#define insw(port, addr, count)	cf_insw((unsigned short*)addr, (unsigned short*)(port), (count))
+#define insl(port, addr, count)	memcpy((void*)addr, (void*)port, (4*count))
+#define outsb(port, addr, count)	memcpy((void*)port, (void*)addr, count)
+#define outsw(port,addr,count)		cf_outsw((unsigned short*)(port), (unsigned short*)addr, (count))
+#define outsl(port, addr, count)	memcpy((void*)port, (void*)addr, (4*count))
+#define IO_SPACE_LIMIT	0xffff
+
+/* Values for nocacheflag and cmode */
+#define IOMAP_FULL_CACHING		0
+#define IOMAP_NOCACHE_SER		1
+#define IOMAP_NOCACHE_NONSER		2
+#define IOMAP_WRITETHROUGH		3
+
+#ifndef __ASSEMBLY__
+extern void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag);
+extern void __iounmap(void *addr, unsigned long size);
+extern inline void *ioremap(unsigned long physaddr, unsigned long size)
+{
+	return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
+}
+extern inline void *ioremap_nocache(unsigned long physaddr, unsigned long size)
+{
+	return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
+}
+extern inline void *ioremap_writethrough(unsigned long physaddr, unsigned long size)
+{
+	return __ioremap(physaddr, size, IOMAP_WRITETHROUGH);
+}
+extern inline void *ioremap_fullcache(unsigned long physaddr, unsigned long size)
+{
+	return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
+}
+
+extern void iounmap(void *addr);
+
+/* Nothing to do */
+
+extern void blkfin_inv_cache_all(void);
+
+#endif
+
+#define dma_cache_inv(_start,_size) do { blkfin_inv_cache_all();} while (0)
+#define dma_cache_wback(_start,_size) do { } while (0)
+#define dma_cache_wback_inv(_start,_size) do { blkfin_inv_cache_all();} while (0)
+
+/* Pages to physical address... */
+#define page_to_phys(page)      ((page - mem_map) << PAGE_SHIFT)
+#define page_to_bus(page)       ((page - mem_map) << PAGE_SHIFT)
+
+#define mm_ptov(vaddr)		((void *) (vaddr))
+#define mm_vtop(vaddr)		((unsigned long) (vaddr))
+#define phys_to_virt(vaddr)	((void *) (vaddr))
+#define virt_to_phys(vaddr)	((unsigned long) (vaddr))
+
+#define virt_to_bus virt_to_phys
+#define bus_to_virt phys_to_virt
+
+#endif
+
+#endif