First Support on Ginger and OMAP TI
[linux-ginger.git] / arch / arm / mach-mx3 / mm.c
blobad5a1122d765ad238143314cbae59e593c7b09bc
1 /*
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
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.
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.
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
23 #include <linux/mm.h>
24 #include <linux/init.h>
25 #include <linux/err.h>
27 #include <asm/pgtable.h>
28 #include <asm/mach/map.h>
29 #include <asm/hardware/cache-l2x0.h>
31 #include <mach/common.h>
32 #include <mach/hardware.h>
33 #include <mach/iomux-v3.h>
35 /*!
36 * @file mm.c
38 * @brief This file creates static virtual to physical mappings, common to all MX3 boards.
40 * @ingroup Memory
43 /*!
44 * This table defines static virtual address mappings for I/O regions.
45 * These are the mappings common across all MX3 boards.
47 static struct map_desc mxc_io_desc[] __initdata = {
49 .virtual = X_MEMC_BASE_ADDR_VIRT,
50 .pfn = __phys_to_pfn(X_MEMC_BASE_ADDR),
51 .length = X_MEMC_SIZE,
52 .type = MT_DEVICE
53 }, {
54 .virtual = AVIC_BASE_ADDR_VIRT,
55 .pfn = __phys_to_pfn(AVIC_BASE_ADDR),
56 .length = AVIC_SIZE,
57 .type = MT_DEVICE_NONSHARED
58 }, {
59 .virtual = AIPS1_BASE_ADDR_VIRT,
60 .pfn = __phys_to_pfn(AIPS1_BASE_ADDR),
61 .length = AIPS1_SIZE,
62 .type = MT_DEVICE_NONSHARED
63 }, {
64 .virtual = AIPS2_BASE_ADDR_VIRT,
65 .pfn = __phys_to_pfn(AIPS2_BASE_ADDR),
66 .length = AIPS2_SIZE,
67 .type = MT_DEVICE_NONSHARED
71 /*!
72 * This function initializes the memory map. It is called during the
73 * system startup to create static physical to virtual memory mappings
74 * for the IO modules.
76 void __init mx31_map_io(void)
78 mxc_set_cpu_type(MXC_CPU_MX31);
79 mxc_arch_reset_init(IO_ADDRESS(WDOG_BASE_ADDR));
81 iotable_init(mxc_io_desc, ARRAY_SIZE(mxc_io_desc));
84 void __init mx35_map_io(void)
86 mxc_set_cpu_type(MXC_CPU_MX35);
87 mxc_iomux_v3_init(IO_ADDRESS(IOMUXC_BASE_ADDR));
88 mxc_arch_reset_init(IO_ADDRESS(WDOG_BASE_ADDR));
90 iotable_init(mxc_io_desc, ARRAY_SIZE(mxc_io_desc));
93 void __init mx31_init_irq(void)
95 mxc_init_irq(IO_ADDRESS(AVIC_BASE_ADDR));
98 void __init mx35_init_irq(void)
100 mx31_init_irq();
103 #ifdef CONFIG_CACHE_L2X0
104 static int mxc_init_l2x0(void)
106 void __iomem *l2x0_base;
108 l2x0_base = ioremap(L2CC_BASE_ADDR, 4096);
109 if (IS_ERR(l2x0_base)) {
110 printk(KERN_ERR "remapping L2 cache area failed with %ld\n",
111 PTR_ERR(l2x0_base));
112 return 0;
115 l2x0_init(l2x0_base, 0x00030024, 0x00000000);
117 return 0;
120 arch_initcall(mxc_init_l2x0);
121 #endif