1 /* 2 * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 #ifndef __COMMON_DEF_H__ 7 #define __COMMON_DEF_H__ 8 9 #include <bl_common.h> 10 #include <platform_def.h> 11 #include <xlat_tables_defs.h> 12 13 /****************************************************************************** 14 * Required platform porting definitions that are expected to be common to 15 * all platforms 16 *****************************************************************************/ 17 18 /* 19 * Platform binary types for linking 20 */ 21 #ifdef AARCH32 22 #define PLATFORM_LINKER_FORMAT "elf32-littlearm" 23 #define PLATFORM_LINKER_ARCH arm 24 #else 25 #define PLATFORM_LINKER_FORMAT "elf64-littleaarch64" 26 #define PLATFORM_LINKER_ARCH aarch64 27 #endif /* AARCH32 */ 28 29 /* 30 * Generic platform constants 31 */ 32 #define FIRMWARE_WELCOME_STR "Booting Trusted Firmware\n" 33 34 #define BL2_IMAGE_DESC { \ 35 .image_id = BL2_IMAGE_ID, \ 36 SET_STATIC_PARAM_HEAD(image_info, PARAM_EP, \ 37 VERSION_2, image_info_t, 0), \ 38 .image_info.image_base = BL2_BASE, \ 39 .image_info.image_max_size = BL2_LIMIT - BL2_BASE,\ 40 SET_STATIC_PARAM_HEAD(ep_info, PARAM_EP, \ 41 VERSION_2, entry_point_info_t, SECURE | EXECUTABLE),\ 42 .ep_info.pc = BL2_BASE, \ 43 } 44 45 /* 46 * The following constants identify the extents of the code & read-only data 47 * regions. These addresses are used by the MMU setup code and therefore they 48 * must be page-aligned. 49 * 50 * When the code and read-only data are mapped as a single atomic section 51 * (i.e. when SEPARATE_CODE_AND_RODATA=0) then we treat the whole section as 52 * code by specifying the read-only data section as empty. 53 * 54 * BL1 is different than the other images in the sense that its read-write data 55 * originally lives in Trusted ROM and needs to be relocated in Trusted SRAM at 56 * run-time. Therefore, the read-write data in ROM can be mapped with the same 57 * memory attributes as the read-only data region. For this reason, BL1 uses 58 * different macros. 59 * 60 * Note that BL1_ROM_END is not necessarily aligned on a page boundary as it 61 * just points to the end of BL1's actual content in Trusted ROM. Therefore it 62 * needs to be rounded up to the next page size in order to map the whole last 63 * page of it with the right memory attributes. 64 */ 65 #if SEPARATE_CODE_AND_RODATA 66 67 #define BL1_CODE_END BL_CODE_END 68 #define BL1_RO_DATA_BASE BL_RO_DATA_BASE 69 #define BL1_RO_DATA_END round_up(BL1_ROM_END, PAGE_SIZE) 70 #if BL2_IN_XIP_MEM 71 #define BL2_CODE_END BL_CODE_END 72 #define BL2_RO_DATA_BASE BL_RO_DATA_BASE 73 #define BL2_RO_DATA_END round_up(BL2_ROM_END, PAGE_SIZE) 74 #endif /* BL2_IN_XIP_MEM */ 75 #else 76 #define BL_RO_DATA_BASE 0 77 #define BL_RO_DATA_END 0 78 #define BL1_CODE_END round_up(BL1_ROM_END, PAGE_SIZE) 79 #if BL2_IN_XIP_MEM 80 #define BL2_RO_DATA_BASE 0 81 #define BL2_RO_DATA_END 0 82 #define BL2_CODE_END round_up(BL2_ROM_END, PAGE_SIZE) 83 #endif /* BL2_IN_XIP_MEM */ 84 #endif /* SEPARATE_CODE_AND_RODATA */ 85 #endif /* __COMMON_DEF_H__ */ 86