/*
* U-boot - io.h IO routines
*
- * Copyright (c) 2005-2007 Analog Devices Inc.
+ * Copyright 2004-2009 Analog Devices Inc.
*
- * 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., 51 Franklin St, Fifth Floor, Boston,
- * MA 02110-1301 USA
+ * Licensed under the GPL-2 or later.
*/
#ifndef _BLACKFIN_IO_H
#include <asm/blackfin.h>
+#define __iomem
+
static inline void sync(void)
{
SSYNC();
}
-/* 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);
-
/*
* 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".
*/
-typedef unsigned long phys_addr_t;
-
#define MAP_NOCACHE (0)
#define MAP_WRCOMBINE (0)
#define MAP_WRBACK (0)
}
+static inline phys_addr_t virt_to_phys(void * vaddr)
+{
+ return (phys_addr_t)(vaddr);
+}
+
/*
* 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
*
* 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
+ * differently. On the bfin architecture, we just read/write the
* memory location directly.
*/
-
#ifndef __ASSEMBLY__
-static inline unsigned char readb(const volatile void *addr)
+static inline unsigned char readb(const volatile void __iomem *addr)
{
unsigned int val;
int tmp;
- __asm__ __volatile__ ("cli %1;\n\t"
- "NOP; NOP; SSYNC;\n\t"
- "%0 = b [%2] (z);\n\t"
- "sti %1;\n\t"
- : "=d"(val), "=d"(tmp): "a"(addr));
+ __asm__ __volatile__ (
+ "cli %1;"
+ "NOP; NOP; SSYNC;"
+ "%0 = b [%2] (z);"
+ "sti %1;"
+ : "=d"(val), "=d"(tmp)
+ : "a"(addr)
+ );
return (unsigned char) val;
}
-static inline unsigned short readw(const volatile void *addr)
+static inline unsigned short readw(const volatile void __iomem *addr)
{
unsigned int val;
int tmp;
- __asm__ __volatile__ ("cli %1;\n\t"
- "NOP; NOP; SSYNC;\n\t"
- "%0 = w [%2] (z);\n\t"
- "sti %1;\n\t"
- : "=d"(val), "=d"(tmp): "a"(addr));
+ __asm__ __volatile__ (
+ "cli %1;"
+ "NOP; NOP; SSYNC;"
+ "%0 = w [%2] (z);"
+ "sti %1;"
+ : "=d"(val), "=d"(tmp)
+ : "a"(addr)
+ );
return (unsigned short) val;
}
-static inline unsigned int readl(const volatile void *addr)
+static inline unsigned int readl(const volatile void __iomem *addr)
{
unsigned int val;
int tmp;
- __asm__ __volatile__ ("cli %1;\n\t"
- "NOP; NOP; SSYNC;\n\t"
- "%0 = [%2];\n\t"
- "sti %1;\n\t"
- : "=d"(val), "=d"(tmp): "a"(addr));
+ __asm__ __volatile__ (
+ "cli %1;"
+ "NOP; NOP; SSYNC;"
+ "%0 = [%2];"
+ "sti %1;"
+ : "=d"(val), "=d"(tmp)
+ : "a"(addr)
+ );
+
return val;
}
-#define __raw_readb readb
-#define __raw_readw readw
-#define __raw_readl readl
-
#endif /* __ASSEMBLY__ */
#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 outb(x, addr) cf_outb((unsigned char)(x), (volatile unsigned char *)(addr))
-
-#define insw(port, addr, count) cf_insw((unsigned short *)addr, (unsigned short *)(port), (count))
+/* Convert "I/O port addresses" to actual addresses. i.e. ugly casts. */
+#define __io(port) ((void *)(unsigned long)(port))
+
+#define inb(port) readb(__io(port))
+#define inw(port) readw(__io(port))
+#define inl(port) readl(__io(port))
+#define outb(x, port) writeb(x, __io(port))
+#define outw(x, port) writew(x, __io(port))
+#define outl(x, port) writel(x, __io(port))
+
+#define inb_p(port) inb(__io(port))
+#define inw_p(port) inw(__io(port))
+#define inl_p(port) inl(__io(port))
+#define outb_p(x, port) outb(x, __io(port))
+#define outw_p(x, port) outw(x, __io(port))
+#define outl_p(x, port) outl(x, __io(port))
+
+#define ioread8_rep(a, d, c) readsb(a, d, c)
+#define ioread16_rep(a, d, c) readsw(a, d, c)
+#define ioread32_rep(a, d, c) readsl(a, d, c)
+#define iowrite8_rep(a, s, c) writesb(a, s, c)
+#define iowrite16_rep(a, s, c) writesw(a, s, c)
+#define iowrite32_rep(a, s, c) writesl(a, s, c)
+
+#define ioread8(x) readb(x)
+#define ioread16(x) readw(x)
+#define ioread32(x) readl(x)
+#define iowrite8(val, x) writeb(val, x)
+#define iowrite16(val, x) writew(val, x)
+#define iowrite32(val, x) writel(val, x)
+
+#define mmiowb() wmb()
-#define outsw(port, addr, count) cf_outsw((unsigned short *)(port), (unsigned short *)addr, (count))
+#ifndef __ASSEMBLY__
-#define IO_SPACE_LIMIT 0xffff
+extern void outsb(unsigned long port, const void *addr, unsigned long count);
+extern void outsw(unsigned long port, const void *addr, unsigned long count);
+extern void outsw_8(unsigned long port, const void *addr, unsigned long count);
+extern void outsl(unsigned long port, const void *addr, unsigned long count);
-/* 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 insb(unsigned long port, void *addr, unsigned long count);
+extern void insw(unsigned long port, void *addr, unsigned long count);
+extern void insw_8(unsigned long port, void *addr, unsigned long count);
+extern void insl(unsigned long port, void *addr, unsigned long count);
+extern void insl_16(unsigned long port, void *addr, unsigned long count);
-extern void *__ioremap(unsigned long physaddr, unsigned long size,
- int cacheflag);
-extern void __iounmap(void *addr, unsigned long size);
+static inline void readsl(const void __iomem *addr, void *buf, int len)
+{
+ insl((unsigned long)addr, buf, len);
+}
-extern inline void *ioremap(unsigned long physaddr, unsigned long size)
+static inline void readsw(const void __iomem *addr, void *buf, int len)
{
- return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
+ insw((unsigned long)addr, buf, len);
}
-extern inline void *ioremap_nocache(unsigned long physaddr, unsigned long size)
+
+static inline void readsb(const void __iomem *addr, void *buf, int len)
{
- return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
+ insb((unsigned long)addr, buf, len);
}
-extern inline void *ioremap_writethrough(unsigned long physaddr,
- unsigned long size)
+
+static inline void writesl(const void __iomem *addr, const void *buf, int len)
{
- return __ioremap(physaddr, size, IOMAP_WRITETHROUGH);
+ outsl((unsigned long)addr, buf, len);
}
-extern inline void *ioremap_fullcache(unsigned long physaddr,
- unsigned long size)
+
+static inline void writesw(const void __iomem *addr, const void *buf, int len)
{
- return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
+ outsw((unsigned long)addr, buf, len);
}
-extern void iounmap(void *addr);
+static inline void writesb(const void __iomem *addr, const void *buf, int len)
+{
+ outsb((unsigned long)addr, buf, len);
+}
-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)
+#if defined(CONFIG_STAMP_CF) || defined(CONFIG_BFIN_IDE)
+/* This hack for CF/IDE needs to be addressed at some point */
+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);
+#undef inb
+#undef outb
+#undef insw
+#undef outsw
+#define inb(addr) cf_inb((void *)(addr))
+#define outb(x, addr) cf_outb((unsigned char)(x), (void *)(addr))
+#define insw(port, addr, cnt) cf_insw((void *)(addr), (void *)(port), cnt)
+#define outsw(port, addr, cnt) cf_outsw((void *)(port), (void *)(addr), cnt)
+#endif
#endif
+
+#endif /* __KERNEL__ */
+
#endif
projects / karo-tx-uboot.git / blobdiff