Sandrine Bailleux | 798140d | 2014-07-17 16:06:39 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved. |
| 3 | * |
| 4 | * Redistribution and use in source and binary forms, with or without |
| 5 | * modification, are permitted provided that the following conditions are met: |
| 6 | * |
| 7 | * Redistributions of source code must retain the above copyright notice, this |
| 8 | * list of conditions and the following disclaimer. |
| 9 | * |
| 10 | * Redistributions in binary form must reproduce the above copyright notice, |
| 11 | * this list of conditions and the following disclaimer in the documentation |
| 12 | * and/or other materials provided with the distribution. |
| 13 | * |
| 14 | * Neither the name of ARM nor the names of its contributors may be used |
| 15 | * to endorse or promote products derived from this software without specific |
| 16 | * prior written permission. |
| 17 | * |
| 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| 19 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 20 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 21 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
| 22 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 23 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 24 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 25 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 26 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 27 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 28 | * POSSIBILITY OF SUCH DAMAGE. |
| 29 | */ |
| 30 | |
| 31 | #include <arch_helpers.h> |
| 32 | #include <assert.h> |
| 33 | #include <bl_common.h> |
| 34 | #include <debug.h> |
| 35 | #include <mmio.h> |
| 36 | #include <platform.h> |
| 37 | #include <platform_def.h> |
| 38 | #include <xlat_tables.h> |
| 39 | #include "../juno_def.h" |
| 40 | |
Soby Mathew | b08bc04 | 2014-09-03 17:48:44 +0100 | [diff] [blame] | 41 | #define MAP_MHU_SECURE MAP_REGION_FLAT(MHU_SECURE_BASE, \ |
| 42 | MHU_SECURE_SIZE, \ |
| 43 | (MHU_PAYLOAD_CACHED ? \ |
| 44 | MT_MEMORY : MT_DEVICE) \ |
| 45 | | MT_RW | MT_SECURE) |
| 46 | |
| 47 | #define MAP_FLASH MAP_REGION_FLAT(FLASH_BASE, \ |
| 48 | FLASH_SIZE, \ |
| 49 | MT_MEMORY | MT_RO | MT_SECURE) |
| 50 | |
| 51 | #define MAP_IOFPGA MAP_REGION_FLAT(IOFPGA_BASE, \ |
| 52 | IOFPGA_SIZE, \ |
| 53 | MT_DEVICE | MT_RW | MT_SECURE) |
| 54 | |
| 55 | #define MAP_DEVICE0 MAP_REGION_FLAT(DEVICE0_BASE, \ |
| 56 | DEVICE0_SIZE, \ |
| 57 | MT_DEVICE | MT_RW | MT_SECURE) |
| 58 | |
| 59 | #define MAP_DEVICE1 MAP_REGION_FLAT(DEVICE1_BASE, \ |
| 60 | DEVICE1_SIZE, \ |
| 61 | MT_DEVICE | MT_RW | MT_SECURE) |
| 62 | |
| 63 | #define MAP_DRAM MAP_REGION_FLAT(DRAM_BASE, \ |
| 64 | DRAM_SIZE, \ |
| 65 | MT_MEMORY | MT_RW | MT_NS) |
Sandrine Bailleux | 798140d | 2014-07-17 16:06:39 +0100 | [diff] [blame] | 66 | /* |
Soby Mathew | b08bc04 | 2014-09-03 17:48:44 +0100 | [diff] [blame] | 67 | * Table of regions for different BL stages to map using the MMU. |
Sandrine Bailleux | 798140d | 2014-07-17 16:06:39 +0100 | [diff] [blame] | 68 | * This doesn't include Trusted RAM as the 'mem_layout' argument passed to |
| 69 | * configure_mmu_elx() will give the available subset of that, |
| 70 | */ |
Soby Mathew | b08bc04 | 2014-09-03 17:48:44 +0100 | [diff] [blame] | 71 | #if IMAGE_BL1 |
Sandrine Bailleux | 798140d | 2014-07-17 16:06:39 +0100 | [diff] [blame] | 72 | static const mmap_region_t juno_mmap[] = { |
Soby Mathew | b08bc04 | 2014-09-03 17:48:44 +0100 | [diff] [blame] | 73 | MAP_MHU_SECURE, |
| 74 | MAP_FLASH, |
| 75 | MAP_IOFPGA, |
| 76 | MAP_DEVICE0, |
| 77 | MAP_DEVICE1, |
Sandrine Bailleux | 798140d | 2014-07-17 16:06:39 +0100 | [diff] [blame] | 78 | {0} |
| 79 | }; |
Soby Mathew | b08bc04 | 2014-09-03 17:48:44 +0100 | [diff] [blame] | 80 | #endif |
| 81 | #if IMAGE_BL2 |
| 82 | static const mmap_region_t juno_mmap[] = { |
| 83 | MAP_MHU_SECURE, |
| 84 | MAP_FLASH, |
| 85 | MAP_IOFPGA, |
| 86 | MAP_DEVICE0, |
| 87 | MAP_DEVICE1, |
| 88 | MAP_DRAM, |
| 89 | {0} |
| 90 | }; |
| 91 | #endif |
| 92 | #if IMAGE_BL31 |
| 93 | static const mmap_region_t juno_mmap[] = { |
| 94 | MAP_MHU_SECURE, |
| 95 | MAP_IOFPGA, |
| 96 | MAP_DEVICE0, |
| 97 | MAP_DEVICE1, |
| 98 | {0} |
| 99 | }; |
| 100 | #endif |
| 101 | #if IMAGE_BL32 |
| 102 | static const mmap_region_t juno_mmap[] = { |
| 103 | MAP_IOFPGA, |
| 104 | MAP_DEVICE0, |
| 105 | MAP_DEVICE1, |
| 106 | {0} |
| 107 | }; |
| 108 | #endif |
Sandrine Bailleux | 798140d | 2014-07-17 16:06:39 +0100 | [diff] [blame] | 109 | |
| 110 | /******************************************************************************* |
| 111 | * Macro generating the code for the function setting up the pagetables as per |
| 112 | * the platform memory map & initialize the mmu, for the given exception level |
| 113 | ******************************************************************************/ |
| 114 | #define DEFINE_CONFIGURE_MMU_EL(_el) \ |
| 115 | void configure_mmu_el##_el(unsigned long total_base, \ |
| 116 | unsigned long total_size, \ |
| 117 | unsigned long ro_start, \ |
| 118 | unsigned long ro_limit, \ |
| 119 | unsigned long coh_start, \ |
| 120 | unsigned long coh_limit) \ |
| 121 | { \ |
| 122 | mmap_add_region(total_base, total_base, \ |
| 123 | total_size, \ |
| 124 | MT_MEMORY | MT_RW | MT_SECURE); \ |
| 125 | mmap_add_region(ro_start, ro_start, \ |
| 126 | ro_limit - ro_start, \ |
| 127 | MT_MEMORY | MT_RO | MT_SECURE); \ |
| 128 | mmap_add_region(coh_start, coh_start, \ |
| 129 | coh_limit - coh_start, \ |
| 130 | MT_DEVICE | MT_RW | MT_SECURE); \ |
| 131 | mmap_add(juno_mmap); \ |
| 132 | init_xlat_tables(); \ |
| 133 | \ |
| 134 | enable_mmu_el##_el(0); \ |
| 135 | } |
| 136 | |
| 137 | /* Define EL1 and EL3 variants of the function initialising the MMU */ |
| 138 | DEFINE_CONFIGURE_MMU_EL(1) |
| 139 | DEFINE_CONFIGURE_MMU_EL(3) |
| 140 | |
| 141 | |
| 142 | unsigned long plat_get_ns_image_entrypoint(void) |
| 143 | { |
| 144 | return NS_IMAGE_OFFSET; |
| 145 | } |
| 146 | |
| 147 | uint64_t plat_get_syscnt_freq(void) |
| 148 | { |
| 149 | uint64_t counter_base_frequency; |
| 150 | |
| 151 | /* Read the frequency from Frequency modes table */ |
| 152 | counter_base_frequency = mmio_read_32(SYS_CNTCTL_BASE + CNTFID_OFF); |
| 153 | |
| 154 | /* The first entry of the frequency modes table must not be 0 */ |
| 155 | if (counter_base_frequency == 0) |
| 156 | panic(); |
| 157 | |
| 158 | return counter_base_frequency; |
| 159 | } |