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 #define BL2_IMAGE_DESC { \ 74 .image_id = BL2_IMAGE_ID, \ 75 SET_STATIC_PARAM_HEAD(image_info, PARAM_EP, \ 76 VERSION_1, image_info_t, 0), \ 77 .image_info.image_base = BL2_BASE, \ 78 SET_STATIC_PARAM_HEAD(ep_info, PARAM_EP, \ 79 VERSION_1, entry_point_info_t, SECURE | EXECUTABLE),\ 80 .ep_info.pc = BL2_BASE, \ 81 } 82 83 /* 84 * The following constants identify the extents of the code & read-only data 85 * regions. These addresses are used by the MMU setup code and therefore they 86 * must be page-aligned. 87 * 88 * When the code and read-only data are mapped as a single atomic section 89 * (i.e. when SEPARATE_CODE_AND_RODATA=0) then we treat the whole section as 90 * code by specifying the read-only data section as empty. 91 * 92 * BL1 is different than the other images in the sense that its read-write data 93 * originally lives in Trusted ROM and needs to be relocated in Trusted SRAM at 94 * run-time. Therefore, the read-write data in ROM can be mapped with the same 95 * memory attributes as the read-only data region. For this reason, BL1 uses 96 * different macros. 97 * 98 * Note that BL1_ROM_END is not necessarily aligned on a page boundary as it 99 * just points to the end of BL1's actual content in Trusted ROM. Therefore it 100 * needs to be rounded up to the next page size in order to map the whole last 101 * page of it with the right memory attributes. 102 */ 103 #if SEPARATE_CODE_AND_RODATA 104 #define BL_CODE_BASE (unsigned long)(&__TEXT_START__) 105 #define BL_CODE_LIMIT (unsigned long)(&__TEXT_END__) 106 #define BL_RO_DATA_BASE (unsigned long)(&__RODATA_START__) 107 #define BL_RO_DATA_LIMIT (unsigned long)(&__RODATA_END__) 108 109 #define BL1_CODE_LIMIT BL_CODE_LIMIT 110 #define BL1_RO_DATA_BASE (unsigned long)(&__RODATA_START__) 111 #define BL1_RO_DATA_LIMIT round_up(BL1_ROM_END, PAGE_SIZE) 112 #else 113 #define BL_CODE_BASE (unsigned long)(&__RO_START__) 114 #define BL_CODE_LIMIT (unsigned long)(&__RO_END__) 115 #define BL_RO_DATA_BASE 0 116 #define BL_RO_DATA_LIMIT 0 117 118 #define BL1_CODE_LIMIT round_up(BL1_ROM_END, PAGE_SIZE) 119 #define BL1_RO_DATA_BASE 0 120 #define BL1_RO_DATA_LIMIT 0 121 #endif /* SEPARATE_CODE_AND_RODATA */ 122 123 #endif /* __COMMON_DEF_H__ */ 124