/* * linux/include/asm-arm/arch-omap/memory.h * * Memory map for OMAP-1510 and 1610 * * Copyright (C) 2000 RidgeRun, Inc. * Author: Greg Lonnon * * This file was derived from linux/include/asm-arm/arch-intergrator/memory.h * Copyright (C) 1999 ARM Limited * * 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. */ #ifndef __ASM_ARCH_MMU_H #define __ASM_ARCH_MMU_H /* * Task size: 3GB */ #define TASK_SIZE (0xbf000000UL) #define TASK_SIZE_26 (0x04000000UL) /* * This decides where the kernel will search for a free chunk of vm * space during mmap's. */ #define TASK_UNMAPPED_BASE (0x40000000) /* * Page offset: 3GB */ #define PAGE_OFFSET (0xC0000000UL) #define PHYS_OFFSET (0x10000000UL) /* * OMAP-1510 Local Bus address offset */ #define OMAP1510_LB_OFFSET (0x30000000UL) /* * The DRAM is contiguous. */ #define __virt_to_phys__is_a_macro #define __virt_to_phys(vpage) ((vpage) - PAGE_OFFSET + PHYS_OFFSET) #define __phys_to_virt__is_a_macro #define __phys_to_virt(ppage) ((ppage) + PAGE_OFFSET - PHYS_OFFSET) /* * Conversion between SDRAM and fake PCI bus, used by USB * NOTE: Physical address must be converted to Local Bus address * on OMAP-1510 only */ #define __virt_to_bus__is_a_macro #define __bus_to_virt__is_a_macro /* * Bus address is physical address, except for OMAP-1510 Local Bus. */ #define __virt_to_bus(x) __virt_to_phys(x) #define __bus_to_virt(x) __phys_to_virt(x) /* * OMAP-1510 bus address is translated into a Local Bus address if the * OMAP bus type is lbus. See dmadev_uses_omap_lbus(). */ #ifdef CONFIG_ARCH_OMAP1510 #define bus_to_lbus(x) ((x) + (OMAP1510_LB_OFFSET - PHYS_OFFSET)) #define lbus_to_bus(x) ((x) - (OMAP1510_LB_OFFSET - PHYS_OFFSET)) #endif #define PHYS_TO_NID(addr) (0) #endif