| /* |
| * 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/kernel.h> |
| #include <linux/init.h> |
| |
| #include <mach/hardware.h> |
| #include <asm/page.h> |
| #include <asm/pgtable.h> |
| #include <asm/sizes.h> |
| |
| #include <asm/mach/map.h> |
| |
| 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 = { |
| { /* memory-mapped extra keyboard row */ |
| .virtual = EP7211_VIRT_EXTKBD, |
| .pfn = __phys_to_pfn(EP7211_PHYS_EXTKBD), |
| .length = SZ_1M, |
| .type = MT_DEVICE, |
| }, { /* and CS8900A Ethernet chip */ |
| .virtual = EP7211_VIRT_CS8900A, |
| .pfn = __phys_to_pfn(EP7211_PHYS_CS8900A), |
| .length = SZ_1M, |
| .type = MT_DEVICE, |
| }, { /* flash banks */ |
| .virtual = EP7211_VIRT_FLASH1, |
| .pfn = __phys_to_pfn(EP7211_PHYS_FLASH1), |
| .length = SZ_8M, |
| .type = MT_DEVICE, |
| }, { |
| .virtual = EP7211_VIRT_FLASH2, |
| .pfn = __phys_to_pfn(EP7211_PHYS_FLASH2), |
| .length = SZ_8M, |
| .type = MT_DEVICE, |
| } |
| }; |
| |
| void __init edb7211_map_io(void) |
| { |
| clps711x_map_io(); |
| iotable_init(edb7211_io_desc, ARRAY_SIZE(edb7211_io_desc)); |
| } |
| |