Quinn Jensen | 52c543f | 2007-07-09 22:06:53 +0100 | [diff] [blame] | 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 |
| 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 Hauer | cb88214 | 2009-02-08 02:00:50 +0100 | [diff] [blame] | 25 | #include <linux/err.h> |
| 26 | |
Quinn Jensen | 52c543f | 2007-07-09 22:06:53 +0100 | [diff] [blame] | 27 | #include <asm/pgtable.h> |
| 28 | #include <asm/mach/map.h> |
Sascha Hauer | cb88214 | 2009-02-08 02:00:50 +0100 | [diff] [blame] | 29 | #include <asm/hardware/cache-l2x0.h> |
| 30 | |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 31 | #include <mach/common.h> |
Sascha Hauer | cb88214 | 2009-02-08 02:00:50 +0100 | [diff] [blame] | 32 | #include <mach/hardware.h> |
Sascha Hauer | 6134b2c | 2009-06-04 11:16:22 +0200 | [diff] [blame] | 33 | #include <mach/iomux-v3.h> |
Quinn Jensen | 52c543f | 2007-07-09 22:06:53 +0100 | [diff] [blame] | 34 | |
| 35 | /*! |
| 36 | * @file mm.c |
| 37 | * |
| 38 | * @brief This file creates static virtual to physical mappings, common to all MX3 boards. |
| 39 | * |
| 40 | * @ingroup Memory |
| 41 | */ |
| 42 | |
| 43 | /*! |
| 44 | * This table defines static virtual address mappings for I/O regions. |
| 45 | * These are the mappings common across all MX3 boards. |
| 46 | */ |
| 47 | static struct map_desc mxc_io_desc[] __initdata = { |
| 48 | { |
| 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, |
Russell King | 9b727ab | 2008-09-07 12:45:01 +0100 | [diff] [blame] | 57 | .type = MT_DEVICE_NONSHARED |
Sascha Hauer | fb4416a | 2009-02-06 18:15:06 +0100 | [diff] [blame] | 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 |
Quinn Jensen | 52c543f | 2007-07-09 22:06:53 +0100 | [diff] [blame] | 68 | }, |
| 69 | }; |
| 70 | |
| 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. |
| 75 | */ |
Sascha Hauer | cd4a05f | 2009-04-02 22:32:10 +0200 | [diff] [blame] | 76 | void __init mx31_map_io(void) |
Quinn Jensen | 52c543f | 2007-07-09 22:06:53 +0100 | [diff] [blame] | 77 | { |
Sascha Hauer | cd4a05f | 2009-04-02 22:32:10 +0200 | [diff] [blame] | 78 | mxc_set_cpu_type(MXC_CPU_MX31); |
Sascha Hauer | be124c9 | 2009-06-04 12:19:02 +0200 | [diff] [blame] | 79 | mxc_arch_reset_init(IO_ADDRESS(WDOG_BASE_ADDR)); |
Sascha Hauer | cd4a05f | 2009-04-02 22:32:10 +0200 | [diff] [blame] | 80 | |
| 81 | iotable_init(mxc_io_desc, ARRAY_SIZE(mxc_io_desc)); |
| 82 | } |
| 83 | |
| 84 | void __init mx35_map_io(void) |
| 85 | { |
| 86 | mxc_set_cpu_type(MXC_CPU_MX35); |
Sascha Hauer | 6134b2c | 2009-06-04 11:16:22 +0200 | [diff] [blame] | 87 | mxc_iomux_v3_init(IO_ADDRESS(IOMUXC_BASE_ADDR)); |
Sascha Hauer | be124c9 | 2009-06-04 12:19:02 +0200 | [diff] [blame] | 88 | mxc_arch_reset_init(IO_ADDRESS(WDOG_BASE_ADDR)); |
Sascha Hauer | cd4a05f | 2009-04-02 22:32:10 +0200 | [diff] [blame] | 89 | |
Quinn Jensen | 52c543f | 2007-07-09 22:06:53 +0100 | [diff] [blame] | 90 | iotable_init(mxc_io_desc, ARRAY_SIZE(mxc_io_desc)); |
| 91 | } |
Sascha Hauer | cb88214 | 2009-02-08 02:00:50 +0100 | [diff] [blame] | 92 | |
Sascha Hauer | c5aa0ad | 2009-05-25 17:36:19 +0200 | [diff] [blame] | 93 | void __init mx31_init_irq(void) |
| 94 | { |
| 95 | mxc_init_irq(IO_ADDRESS(AVIC_BASE_ADDR)); |
| 96 | } |
| 97 | |
| 98 | void __init mx35_init_irq(void) |
| 99 | { |
| 100 | mx31_init_irq(); |
| 101 | } |
| 102 | |
Sascha Hauer | cb88214 | 2009-02-08 02:00:50 +0100 | [diff] [blame] | 103 | #ifdef CONFIG_CACHE_L2X0 |
| 104 | static int mxc_init_l2x0(void) |
| 105 | { |
| 106 | void __iomem *l2x0_base; |
| 107 | |
| 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; |
| 113 | } |
| 114 | |
| 115 | l2x0_init(l2x0_base, 0x00030024, 0x00000000); |
| 116 | |
| 117 | return 0; |
| 118 | } |
| 119 | |
| 120 | arch_initcall(mxc_init_l2x0); |
| 121 | #endif |
| 122 | |