1 /* 2 * Copyright (c) 2015-2016, 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 #ifndef __COMMON_DEF_H__ 31 #define __COMMON_DEF_H__ 32 33 #include <bl_common.h> 34 #include <platform_def.h> 35 36 /****************************************************************************** 37 * Required platform porting definitions that are expected to be common to 38 * all platforms 39 *****************************************************************************/ 40 41 /* 42 * Platform binary types for linking 43 */ 44 #define PLATFORM_LINKER_FORMAT "elf64-littleaarch64" 45 #define PLATFORM_LINKER_ARCH aarch64 46 47 48 /* 49 * Generic platform constants 50 */ 51 #define FIRMWARE_WELCOME_STR "Booting Trusted Firmware\n" 52 53 /* 54 * Some of the platform porting definitions use the 'ull' suffix in order to 55 * avoid subtle integer overflow errors due to implicit integer type promotion 56 * when working with 32-bit values. 57 * 58 * The TSP linker script includes some of these definitions to define the BL32 59 * memory map, but the GNU LD does not support the 'ull' suffix, causing the 60 * build process to fail. To solve this problem, the auxiliary macro MAKE_ULL(x) 61 * will add the 'ull' suffix only when the macro __LINKER__ is not defined 62 * (__LINKER__ is defined in the command line to preprocess the linker script). 63 * Constants in the linker script will not have the 'ull' suffix, but this is 64 * not a problem since the linker evaluates all constant expressions to 64 bit 65 * (assuming the target architecture is 64 bit). 66 */ 67 #ifndef __LINKER__ 68 #define MAKE_ULL(x) x##ull 69 #else 70 #define MAKE_ULL(x) x 71 #endif 72 73 #if LOAD_IMAGE_V2 74 #define BL2_IMAGE_DESC { \ 75 .image_id = BL2_IMAGE_ID, \ 76 SET_STATIC_PARAM_HEAD(image_info, PARAM_EP, \ 77 VERSION_2, image_info_t, 0), \ 78 .image_info.image_base = BL2_BASE, \ 79 .image_info.image_max_size = BL2_LIMIT - BL2_BASE,\ 80 SET_STATIC_PARAM_HEAD(ep_info, PARAM_EP, \ 81 VERSION_2, entry_point_info_t, SECURE | EXECUTABLE),\ 82 .ep_info.pc = BL2_BASE, \ 83 } 84 #else /* LOAD_IMAGE_V2 */ 85 #define BL2_IMAGE_DESC { \ 86 .image_id = BL2_IMAGE_ID, \ 87 SET_STATIC_PARAM_HEAD(image_info, PARAM_EP, \ 88 VERSION_1, image_info_t, 0), \ 89 .image_info.image_base = BL2_BASE, \ 90 SET_STATIC_PARAM_HEAD(ep_info, PARAM_EP, \ 91 VERSION_1, entry_point_info_t, SECURE | EXECUTABLE),\ 92 .ep_info.pc = BL2_BASE, \ 93 } 94 #endif /* LOAD_IMAGE_V2 */ 95 96 /* 97 * The following constants identify the extents of the code & read-only data 98 * regions. These addresses are used by the MMU setup code and therefore they 99 * must be page-aligned. 100 * 101 * When the code and read-only data are mapped as a single atomic section 102 * (i.e. when SEPARATE_CODE_AND_RODATA=0) then we treat the whole section as 103 * code by specifying the read-only data section as empty. 104 * 105 * BL1 is different than the other images in the sense that its read-write data 106 * originally lives in Trusted ROM and needs to be relocated in Trusted SRAM at 107 * run-time. Therefore, the read-write data in ROM can be mapped with the same 108 * memory attributes as the read-only data region. For this reason, BL1 uses 109 * different macros. 110 * 111 * Note that BL1_ROM_END is not necessarily aligned on a page boundary as it 112 * just points to the end of BL1's actual content in Trusted ROM. Therefore it 113 * needs to be rounded up to the next page size in order to map the whole last 114 * page of it with the right memory attributes. 115 */ 116 #if SEPARATE_CODE_AND_RODATA 117 #define BL_CODE_BASE (unsigned long)(&__TEXT_START__) 118 #define BL_CODE_LIMIT (unsigned long)(&__TEXT_END__) 119 #define BL_RO_DATA_BASE (unsigned long)(&__RODATA_START__) 120 #define BL_RO_DATA_LIMIT (unsigned long)(&__RODATA_END__) 121 122 #define BL1_CODE_LIMIT BL_CODE_LIMIT 123 #define BL1_RO_DATA_BASE (unsigned long)(&__RODATA_START__) 124 #define BL1_RO_DATA_LIMIT round_up(BL1_ROM_END, PAGE_SIZE) 125 #else 126 #define BL_CODE_BASE (unsigned long)(&__RO_START__) 127 #define BL_CODE_LIMIT (unsigned long)(&__RO_END__) 128 #define BL_RO_DATA_BASE 0 129 #define BL_RO_DATA_LIMIT 0 130 131 #define BL1_CODE_LIMIT round_up(BL1_ROM_END, PAGE_SIZE) 132 #define BL1_RO_DATA_BASE 0 133 #define BL1_RO_DATA_LIMIT 0 134 #endif /* SEPARATE_CODE_AND_RODATA */ 135 136 #endif /* __COMMON_DEF_H__ */ 137