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 <platform.h> 32 33OUTPUT_FORMAT(PLATFORM_LINKER_FORMAT) 34OUTPUT_ARCH(PLATFORM_LINKER_ARCH) 35ENTRY(bl1_entrypoint) 36 37MEMORY { 38 ROM (rx): ORIGIN = TZROM_BASE, LENGTH = TZROM_SIZE 39 RAM (rwx): ORIGIN = TZRAM_BASE, LENGTH = TZRAM_SIZE 40} 41 42SECTIONS 43{ 44 ro : { 45 __RO_START__ = .; 46 *bl1_entrypoint.o(.text*) 47 *(.text*) 48 *(.rodata*) 49 *(.vectors) 50 __RO_END__ = .; 51 } >ROM 52 53 /* 54 * The .data section gets copied from ROM to RAM at runtime. 55 * Its LMA and VMA must be 16-byte aligned. 56 */ 57 . = NEXT(16); /* Align LMA */ 58 .data : ALIGN(16) { /* Align VMA */ 59 __DATA_RAM_START__ = .; 60 *(.data*) 61 __DATA_RAM_END__ = .; 62 } >RAM AT>ROM 63 64 stacks (NOLOAD) : { 65 __STACKS_START__ = .; 66 *(tzfw_normal_stacks) 67 __STACKS_END__ = .; 68 } >RAM 69 70 /* 71 * The .bss section gets initialised to 0 at runtime. 72 * Its base address must be 16-byte aligned. 73 */ 74 .bss : ALIGN(16) { 75 __BSS_START__ = .; 76 *(.bss*) 77 *(COMMON) 78 __BSS_END__ = .; 79 } >RAM 80 81 /* 82 * The xlat_table section is for full, aligned page tables (4K). 83 * Removing them from .bss avoids forcing 4K alignment on 84 * the .bss section and eliminates the unecessary zero init 85 */ 86 xlat_table (NOLOAD) : { 87 *(xlat_table) 88 } >RAM 89 90 /* 91 * The base address of the coherent memory section must be page-aligned (4K) 92 * to guarantee that the coherent data are stored on their own pages and 93 * are not mixed with normal data. This is required to set up the correct 94 * memory attributes for the coherent data page tables. 95 */ 96 coherent_ram (NOLOAD) : ALIGN(4096) { 97 __COHERENT_RAM_START__ = .; 98 *(tzfw_coherent_mem) 99 __COHERENT_RAM_END_UNALIGNED__ = .; 100 /* 101 * Memory page(s) mapped to this section will be marked 102 * as device memory. No other unexpected data must creep in. 103 * Ensure the rest of the current memory page is unused. 104 */ 105 . = NEXT(4096); 106 __COHERENT_RAM_END__ = .; 107 } >RAM 108 109 __BL1_RAM_START__ = ADDR(.data); 110 __BL1_RAM_END__ = .; 111 112 __DATA_ROM_START__ = LOADADDR(.data); 113 __DATA_SIZE__ = SIZEOF(.data); 114 115 __BSS_SIZE__ = SIZEOF(.bss); 116 117 __COHERENT_RAM_UNALIGNED_SIZE__ = 118 __COHERENT_RAM_END_UNALIGNED__ - __COHERENT_RAM_START__; 119 120 ASSERT(. <= BL31_BASE, "BL1 image overlaps BL31 image.") 121} 122