blob: 20e48c0195c4f8533c7d43113f0ce3965c0ef143 [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.
Quinn Jensen52c543f2007-07-09 22:06:53 +010017 */
18
19#include <linux/mm.h>
20#include <linux/init.h>
Sascha Hauercb882142009-02-08 02:00:50 +010021#include <linux/err.h>
22
Quinn Jensen52c543f2007-07-09 22:06:53 +010023#include <asm/pgtable.h>
24#include <asm/mach/map.h>
Sascha Hauercb882142009-02-08 02:00:50 +010025#include <asm/hardware/cache-l2x0.h>
26
Russell Kinga09e64f2008-08-05 16:14:15 +010027#include <mach/common.h>
Sascha Hauercb882142009-02-08 02:00:50 +010028#include <mach/hardware.h>
Sascha Hauer6134b2c2009-06-04 11:16:22 +020029#include <mach/iomux-v3.h>
Quinn Jensen52c543f2007-07-09 22:06:53 +010030
31/*!
32 * @file mm.c
33 *
34 * @brief This file creates static virtual to physical mappings, common to all MX3 boards.
35 *
36 * @ingroup Memory
37 */
38
39/*!
40 * This table defines static virtual address mappings for I/O regions.
41 * These are the mappings common across all MX3 boards.
42 */
43static struct map_desc mxc_io_desc[] __initdata = {
44 {
45 .virtual = X_MEMC_BASE_ADDR_VIRT,
46 .pfn = __phys_to_pfn(X_MEMC_BASE_ADDR),
47 .length = X_MEMC_SIZE,
48 .type = MT_DEVICE
49 }, {
50 .virtual = AVIC_BASE_ADDR_VIRT,
51 .pfn = __phys_to_pfn(AVIC_BASE_ADDR),
52 .length = AVIC_SIZE,
Russell King9b727ab2008-09-07 12:45:01 +010053 .type = MT_DEVICE_NONSHARED
Sascha Hauerfb4416a2009-02-06 18:15:06 +010054 }, {
55 .virtual = AIPS1_BASE_ADDR_VIRT,
56 .pfn = __phys_to_pfn(AIPS1_BASE_ADDR),
57 .length = AIPS1_SIZE,
58 .type = MT_DEVICE_NONSHARED
59 }, {
60 .virtual = AIPS2_BASE_ADDR_VIRT,
61 .pfn = __phys_to_pfn(AIPS2_BASE_ADDR),
62 .length = AIPS2_SIZE,
63 .type = MT_DEVICE_NONSHARED
Wolfgang Denke94c4c32009-12-15 00:27:42 +010064 }, {
65 .virtual = SPBA0_BASE_ADDR_VIRT,
66 .pfn = __phys_to_pfn(SPBA0_BASE_ADDR),
67 .length = SPBA0_SIZE,
68 .type = MT_DEVICE_NONSHARED
Quinn Jensen52c543f2007-07-09 22:06:53 +010069 },
70};
71
72/*!
73 * This function initializes the memory map. It is called during the
74 * system startup to create static physical to virtual memory mappings
75 * for the IO modules.
76 */
Sascha Hauercd4a05f2009-04-02 22:32:10 +020077void __init mx31_map_io(void)
Quinn Jensen52c543f2007-07-09 22:06:53 +010078{
Sascha Hauercd4a05f2009-04-02 22:32:10 +020079 mxc_set_cpu_type(MXC_CPU_MX31);
Sascha Hauerbe124c92009-06-04 12:19:02 +020080 mxc_arch_reset_init(IO_ADDRESS(WDOG_BASE_ADDR));
Sascha Hauercd4a05f2009-04-02 22:32:10 +020081
82 iotable_init(mxc_io_desc, ARRAY_SIZE(mxc_io_desc));
83}
84
Guennadi Liakhovetski324c1aa2009-10-05 10:00:58 +020085#ifdef CONFIG_ARCH_MX35
Sascha Hauercd4a05f2009-04-02 22:32:10 +020086void __init mx35_map_io(void)
87{
88 mxc_set_cpu_type(MXC_CPU_MX35);
Sascha Hauer6134b2c2009-06-04 11:16:22 +020089 mxc_iomux_v3_init(IO_ADDRESS(IOMUXC_BASE_ADDR));
Sascha Hauerbe124c92009-06-04 12:19:02 +020090 mxc_arch_reset_init(IO_ADDRESS(WDOG_BASE_ADDR));
Sascha Hauercd4a05f2009-04-02 22:32:10 +020091
Quinn Jensen52c543f2007-07-09 22:06:53 +010092 iotable_init(mxc_io_desc, ARRAY_SIZE(mxc_io_desc));
93}
Guennadi Liakhovetski324c1aa2009-10-05 10:00:58 +020094#endif
Sascha Hauercb882142009-02-08 02:00:50 +010095
Uwe Kleine-König9a763bf2010-06-10 17:11:06 +020096int imx3x_register_gpios(void);
97
Sascha Hauerc5aa0ad2009-05-25 17:36:19 +020098void __init mx31_init_irq(void)
99{
100 mxc_init_irq(IO_ADDRESS(AVIC_BASE_ADDR));
Jason Wang84659ab2010-07-13 21:02:42 +0800101 imx3x_register_gpios();
Sascha Hauerc5aa0ad2009-05-25 17:36:19 +0200102}
103
104void __init mx35_init_irq(void)
105{
106 mx31_init_irq();
107}
108
Sascha Hauercb882142009-02-08 02:00:50 +0100109#ifdef CONFIG_CACHE_L2X0
110static int mxc_init_l2x0(void)
111{
112 void __iomem *l2x0_base;
113
114 l2x0_base = ioremap(L2CC_BASE_ADDR, 4096);
115 if (IS_ERR(l2x0_base)) {
116 printk(KERN_ERR "remapping L2 cache area failed with %ld\n",
117 PTR_ERR(l2x0_base));
118 return 0;
119 }
120
121 l2x0_init(l2x0_base, 0x00030024, 0x00000000);
122
123 return 0;
124}
125
126arch_initcall(mxc_init_l2x0);
127#endif
128