1 /* 2 * Copyright (c) 2015, 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 <assert.h> 32 #include <bl_common.h> 33 #include <debug.h> 34 #include <errno.h> 35 #include <plat_arm.h> 36 #include <tbbr_img_desc.h> 37 38 39 /* Struct to keep track of usable memory */ 40 typedef struct bl1_mem_info{ 41 uintptr_t mem_base; 42 unsigned int mem_size; 43 } bl1_mem_info_t; 44 45 bl1_mem_info_t fwu_addr_map_secure[] = { 46 { 47 .mem_base = ARM_SHARED_RAM_BASE, 48 .mem_size = ARM_SHARED_RAM_SIZE 49 }, 50 { 51 .mem_size = 0 52 } 53 }; 54 55 bl1_mem_info_t fwu_addr_map_non_secure[] = { 56 { 57 .mem_base = ARM_NS_DRAM1_BASE, 58 .mem_size = ARM_NS_DRAM1_SIZE 59 }, 60 { 61 .mem_base = V2M_FLASH0_BASE, 62 .mem_size = V2M_FLASH0_SIZE 63 }, 64 { 65 .mem_size = 0 66 } 67 }; 68 69 int bl1_plat_mem_check(uintptr_t mem_base, 70 unsigned int mem_size, 71 unsigned int flags) 72 { 73 unsigned int index = 0; 74 bl1_mem_info_t *mmap; 75 76 assert(mem_base); 77 assert(mem_size); 78 79 /* 80 * Check the given image source and size. 81 */ 82 if (GET_SEC_STATE(flags) == SECURE) 83 mmap = fwu_addr_map_secure; 84 else 85 mmap = fwu_addr_map_non_secure; 86 87 while (mmap[index].mem_size) { 88 if ((mem_base >= mmap[index].mem_base) && 89 ((mem_base + mem_size) 90 <= (mmap[index].mem_base + 91 mmap[index].mem_size))) 92 return 0; 93 94 index++; 95 } 96 97 return -ENOMEM; 98 } 99 100 /******************************************************************************* 101 * This function does linear search for image_id and returns image_desc. 102 ******************************************************************************/ 103 image_desc_t *bl1_plat_get_image_desc(unsigned int image_id) 104 { 105 unsigned int index = 0; 106 107 while (bl1_tbbr_image_descs[index].image_id != INVALID_IMAGE_ID) { 108 if (bl1_tbbr_image_descs[index].image_id == image_id) 109 return &bl1_tbbr_image_descs[index]; 110 index++; 111 } 112 113 return NULL; 114 } 115