/* *  linux/arch/arm/mach-clps711x/mm.c * *  Extra MM routines for the EDB7211 board * *  Copyright (C) 2000, 2001 Blue Mug, Inc.  All Rights Reserved. * * 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 */#include <linux/sched.h>#include <linux/mm.h>#include <linux/init.h>#include <asm/hardware.h>#include <asm/pgtable.h>#include <asm/page.h> #include <asm/mach/map.h>#define MB1 1048576	/* one megabyte == size of an MMU section */extern void clps711x_map_io(void);/* * The on-chip registers are given a size of 1MB so that a section can * be used to map them; this saves a page table.  This is the place to * add mappings for ROM, expansion memory, PCMCIA, etc.  (if static * mappings are chosen for those areas). * * Here is a physical memory map (to be fleshed out later): * * Physical Address  Size  Description * ----------------- ----- --------------------------------- * c0000000-c001ffff 128KB reserved for video RAM [1] * c0020000-c0023fff  16KB parameters (see Documentation/arm/Setup) * c0024000-c0027fff  16KB swapper_pg_dir (task 0 page directory) * c0028000-...            kernel image (TEXTADDR) * * [1] Unused pages should be given back to the VM; they are not yet. *     The parameter block should also be released (not sure if this *     happens). */static struct map_desc edb7211_io_desc[] __initdata = { /* virtual, physical, length, domain, r, w, c, b */ /* memory-mapped extra keyboard row and CS8900A Ethernet chip */ { EP7211_VIRT_EXTKBD, EP7211_PHYS_EXTKBD, MB1, DOMAIN_IO, 1, 1, 0, 0 },  { EP7211_VIRT_CS8900A, EP7211_PHYS_CS8900A, MB1, DOMAIN_IO, 1, 1, 0, 0 }, /* flash banks */ { EP7211_VIRT_FLASH1, EP7211_PHYS_FLASH1, MB1 * 8, DOMAIN_KERNEL, 1, 1, 0, 0 }, { EP7211_VIRT_FLASH2, EP7211_PHYS_FLASH2, MB1 * 8, DOMAIN_KERNEL, 1, 1, 0, 0 }, LAST_DESC};void __init edb7211_map_io(void){        clps711x_map_io();        iotable_init(edb7211_io_desc);}