Merge with http://www.denx.de/git/u-boot.git

1 files changed, 122 insertions, 0 deletions

diff --git a/include/asm-blackfin/io.h b/include/asm-blackfin/io.h
new file mode 100644
index 0000000..e5b388e
--- /dev/null
+++ b/include/asm-blackfin/io.h
@@ -0,0 +1,122 @@
+/*
+ * U-boot - io.h IO routines
+ *
+ * Copyright (c) 2005 blackfin.uclinux.org
+ *
+ * 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>
+
+/* function prototypes for CF support */
+extern void cf_outsw(unsigned short *addr, unsigned short *sect_buf, int words);
+extern void cf_insw(unsigned short *sect_buf, unsigned short *addr, int words);
+extern unsigned char cf_inb(volatile unsigned char *addr);
+extern void cf_outb(unsigned char val, volatile unsigned char* addr);
+
+/*
+ * 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.
+ */
+
+
+#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)		{((*(volatile unsigned char *) (addr)) = (b)); asm("ssync;");}
+#define writew(b,addr)		{((*(volatile unsigned short *) (addr)) = (b)); asm("ssync;");}
+#define writel(b,addr)		{((*(volatile unsigned int *) (addr)) = (b)); asm("ssync;");}
+
+#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_p(addr)		readb((addr) + BF533_PCIIO_BASE)
+#define inb(addr)		cf_inb((volatile unsigned char*)(addr))
+
+#define outb(x,addr)		cf_outb((unsigned char)(x), (volatile unsigned char*)(addr))
+#define outb_p(x,addr)		outb(x, (addr) + BF533_PCIIO_BASE)
+
+#define inw(addr)		readw((addr) + BF533_PCIIO_BASE)
+#define inl(addr)		readl((addr) + BF533_PCIIO_BASE)
+
+#define outw(x,addr)		writew(x, (addr) + BF533_PCIIO_BASE)
+#define outl(x,addr)		writel(x, (addr) + BF533_PCIIO_BASE)
+
+#define insb(port, addr, count)	memcpy((void*)addr, (void*)(BF533_PCIIO_BASE + 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*)(BF533_PCIIO_BASE + port), (4*count))
+
+#define outsb(port,addr,count)	memcpy((void*)(BF533_PCIIO_BASE + 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*)(BF533_PCIIO_BASE + 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
+
+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);
+
+extern void blkfin_inv_cache_all(void);
+#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)
+
+#endif
+#endif