X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-arm%2Farch-omap%2Fio.h;h=78f68e6a4f0c59a24407cd7fbe8c905dea0b97ec;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=86c1cb3fbcd3694d801a8e7401ba0b6eb7cfa066;hpb=5273a3df6485dc2ad6aa7ddd441b9a21970f003b;p=linux-2.6.git

diff --git a/include/asm-arm/arch-omap/io.h b/include/asm-arm/arch-omap/io.h
index 86c1cb3fb..78f68e6a4 100644
--- a/include/asm-arm/arch-omap/io.h
+++ b/include/asm-arm/arch-omap/io.h
@@ -1,25 +1,85 @@
 /*
  * linux/include/asm-arm/arch-omap/io.h
  *
+ * IO definitions for TI OMAP processors and boards
+ *
  * Copied from linux/include/asm-arm/arch-sa1100/io.h
  * Copyright (C) 1997-1999 Russell King
  *
+ * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * 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.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
  * Modifications:
  *  06-12-1997	RMK	Created.
  *  07-04-1999	RMK	Major cleanup
  */
+
 #ifndef __ASM_ARM_ARCH_IO_H
 #define __ASM_ARM_ARCH_IO_H
 
+#include <asm/hardware.h>
+
 #define IO_SPACE_LIMIT 0xffffffff
 
 /*
  * We don't actually have real ISA nor PCI buses, but there is so many
  * drivers out there that might just work if we fake them...
  */
-#define __io(a)			(PCIO_BASE + (a))
-#define __mem_pci(a)		((unsigned long)(a))
-#define __mem_isa(a)		((unsigned long)(a))
+#define __io(a)			((void __iomem *)(PCIO_BASE + (a)))
+#define __mem_pci(a)		(a)
+
+/*
+ * ----------------------------------------------------------------------------
+ * I/O mapping
+ * ----------------------------------------------------------------------------
+ */
+
+#define PCIO_BASE	0
+
+#if defined(CONFIG_ARCH_OMAP1)
+
+#define IO_PHYS		0xFFFB0000
+#define IO_OFFSET	0x01000000	/* Virtual IO = 0xfefb0000 */
+#define IO_SIZE		0x40000
+#define IO_VIRT		(IO_PHYS - IO_OFFSET)
+#define IO_ADDRESS(pa)	((pa) - IO_OFFSET)
+#define io_p2v(pa)	((pa) - IO_OFFSET)
+#define io_v2p(va)	((va) + IO_OFFSET)
+
+#elif defined(CONFIG_ARCH_OMAP2)
+
+/* We map both L3 and L4 on OMAP2 */
+#define L3_24XX_PHYS	L3_24XX_BASE	/* 0x68000000 */
+#define L3_24XX_VIRT	0xf8000000
+#define L3_24XX_SIZE	SZ_1M		/* 44kB of 128MB used, want 1MB sect */
+#define L4_24XX_PHYS	L4_24XX_BASE	/* 0x48000000 */
+#define L4_24XX_VIRT	0xd8000000
+#define L4_24XX_SIZE	SZ_1M		/* 1MB of 128MB used, want 1MB sect */
+#define IO_OFFSET	0x90000000
+#define IO_ADDRESS(pa)	((pa) + IO_OFFSET)	/* Works for L3 and L4 */
+#define io_p2v(pa)	((pa) + IO_OFFSET)	/* Works for L3 and L4 */
+#define io_v2p(va)	((va) - IO_OFFSET)	/* Works for L3 and L4 */
+
+#endif
+
+#ifndef __ASSEMBLER__
 
 /*
  * Functions to access the OMAP IO region
@@ -38,4 +98,35 @@
 #define omap_writew(v,a)	(*(volatile unsigned short *)IO_ADDRESS(a) = (v))
 #define omap_writel(v,a)	(*(volatile unsigned int   *)IO_ADDRESS(a) = (v))
 
+/* 16 bit uses LDRH/STRH, base +/- offset_8 */
+typedef struct { volatile u16 offset[256]; } __regbase16;
+#define __REGV16(vaddr)		((__regbase16 *)((vaddr)&~0xff)) \
+					->offset[((vaddr)&0xff)>>1]
+#define __REG16(paddr)          __REGV16(io_p2v(paddr))
+
+/* 8/32 bit uses LDR/STR, base +/- offset_12 */
+typedef struct { volatile u8 offset[4096]; } __regbase8;
+#define __REGV8(vaddr)		((__regbase8  *)((vaddr)&~4095)) \
+					->offset[((vaddr)&4095)>>0]
+#define __REG8(paddr)		__REGV8(io_p2v(paddr))
+
+typedef struct { volatile u32 offset[4096]; } __regbase32;
+#define __REGV32(vaddr)		((__regbase32 *)((vaddr)&~4095)) \
+					->offset[((vaddr)&4095)>>2]
+#define __REG32(paddr)		__REGV32(io_p2v(paddr))
+
+extern void omap1_map_common_io(void);
+extern void omap1_init_common_hw(void);
+
+extern void omap2_map_common_io(void);
+extern void omap2_init_common_hw(void);
+
+#else
+
+#define __REG8(paddr)		io_p2v(paddr)
+#define __REG16(paddr)		io_p2v(paddr)
+#define __REG32(paddr)		io_p2v(paddr)
+
+#endif
+
 #endif