/*
* 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)
+#define __mem_isa(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
#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