blob: 44fcb6679f9a558d944847ad2f5da012d8d092ae [file] [log] [blame]
Quinn Jensen52c543f2007-07-09 22:06:53 +01001/*
2 * Copyright (C) 1999,2000 Arm Limited
3 * Copyright (C) 2000 Deep Blue Solutions Ltd
4 * Copyright (C) 2002 Shane Nay (shane@minirl.com)
5 * Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
6 * - add MX31 specific definitions
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 */
22
23#include <linux/mm.h>
24#include <linux/init.h>
Sascha Hauercb882142009-02-08 02:00:50 +010025#include <linux/err.h>
26
Quinn Jensen52c543f2007-07-09 22:06:53 +010027#include <asm/pgtable.h>
28#include <asm/mach/map.h>
Sascha Hauercb882142009-02-08 02:00:50 +010029#include <asm/hardware/cache-l2x0.h>
30
Russell Kinga09e64f2008-08-05 16:14:15 +010031#include <mach/common.h>
Sascha Hauercb882142009-02-08 02:00:50 +010032#include <mach/hardware.h>
Quinn Jensen52c543f2007-07-09 22:06:53 +010033
34/*!
35 * @file mm.c
36 *
37 * @brief This file creates static virtual to physical mappings, common to all MX3 boards.
38 *
39 * @ingroup Memory
40 */
41
42/*!
43 * This table defines static virtual address mappings for I/O regions.
44 * These are the mappings common across all MX3 boards.
45 */
46static struct map_desc mxc_io_desc[] __initdata = {
47 {
48 .virtual = X_MEMC_BASE_ADDR_VIRT,
49 .pfn = __phys_to_pfn(X_MEMC_BASE_ADDR),
50 .length = X_MEMC_SIZE,
51 .type = MT_DEVICE
52 }, {
53 .virtual = AVIC_BASE_ADDR_VIRT,
54 .pfn = __phys_to_pfn(AVIC_BASE_ADDR),
55 .length = AVIC_SIZE,
Russell King9b727ab2008-09-07 12:45:01 +010056 .type = MT_DEVICE_NONSHARED
Quinn Jensen52c543f2007-07-09 22:06:53 +010057 },
58};
59
60/*!
61 * This function initializes the memory map. It is called during the
62 * system startup to create static physical to virtual memory mappings
63 * for the IO modules.
64 */
65void __init mxc_map_io(void)
66{
67 iotable_init(mxc_io_desc, ARRAY_SIZE(mxc_io_desc));
68}
Sascha Hauercb882142009-02-08 02:00:50 +010069
70#ifdef CONFIG_CACHE_L2X0
71static int mxc_init_l2x0(void)
72{
73 void __iomem *l2x0_base;
74
75 l2x0_base = ioremap(L2CC_BASE_ADDR, 4096);
76 if (IS_ERR(l2x0_base)) {
77 printk(KERN_ERR "remapping L2 cache area failed with %ld\n",
78 PTR_ERR(l2x0_base));
79 return 0;
80 }
81
82 l2x0_init(l2x0_base, 0x00030024, 0x00000000);
83
84 return 0;
85}
86
87arch_initcall(mxc_init_l2x0);
88#endif
89