1 /* 2 * Copyright (c) 2022, Socionext Inc. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <assert.h> 8 #include <errno.h> 9 #include <stdint.h> 10 11 #include <drivers/io/io_block.h> 12 #include <drivers/io/io_driver.h> 13 #include <drivers/io/io_fip.h> 14 #include <drivers/io/io_memmap.h> 15 #include <lib/mmio.h> 16 #include <lib/utils_def.h> 17 #include <lib/xlat_tables/xlat_tables_v2.h> 18 #include <tools_share/firmware_image_package.h> 19 20 #include <platform_def.h> 21 #include <sq_common.h> 22 23 static const io_dev_connector_t *sq_fip_dev_con; 24 static uintptr_t sq_fip_dev_handle; 25 26 static const io_dev_connector_t *sq_backend_dev_con; 27 static uintptr_t sq_backend_dev_handle; 28 29 static io_block_spec_t sq_fip_spec = { 30 .offset = PLAT_SQ_FIP_IOBASE, /* FIP Image is at 5MB offset on memory-mapped NOR flash */ 31 .length = PLAT_SQ_FIP_MAXSIZE, /* Expected maximum FIP image size */ 32 }; 33 34 static const io_uuid_spec_t sq_bl2_spec = { 35 .uuid = UUID_TRUSTED_BOOT_FIRMWARE_BL2, 36 }; 37 38 static const io_uuid_spec_t sq_bl31_spec = { 39 .uuid = UUID_EL3_RUNTIME_FIRMWARE_BL31, 40 }; 41 42 static const io_uuid_spec_t sq_bl32_spec = { 43 .uuid = UUID_SECURE_PAYLOAD_BL32, 44 }; 45 46 static const io_uuid_spec_t sq_bl33_spec = { 47 .uuid = UUID_NON_TRUSTED_FIRMWARE_BL33, 48 }; 49 50 struct sq_io_policy { 51 uintptr_t *dev_handle; 52 uintptr_t image_spec; 53 uintptr_t init_params; 54 }; 55 56 static const struct sq_io_policy sq_io_policies[] = { 57 [FIP_IMAGE_ID] = { 58 .dev_handle = &sq_backend_dev_handle, 59 .image_spec = (uintptr_t)&sq_fip_spec, 60 }, 61 [BL2_IMAGE_ID] = { 62 .dev_handle = &sq_fip_dev_handle, 63 .image_spec = (uintptr_t)&sq_bl2_spec, 64 .init_params = FIP_IMAGE_ID, 65 }, 66 [BL31_IMAGE_ID] = { 67 .dev_handle = &sq_fip_dev_handle, 68 .image_spec = (uintptr_t)&sq_bl31_spec, 69 .init_params = FIP_IMAGE_ID, 70 }, 71 [BL32_IMAGE_ID] = { 72 .dev_handle = &sq_fip_dev_handle, 73 .image_spec = (uintptr_t)&sq_bl32_spec, 74 .init_params = FIP_IMAGE_ID, 75 }, 76 [BL33_IMAGE_ID] = { 77 .dev_handle = &sq_fip_dev_handle, 78 .image_spec = (uintptr_t)&sq_bl33_spec, 79 .init_params = FIP_IMAGE_ID, 80 }, 81 }; 82 83 static int sq_io_memmap_setup(void) 84 { 85 int ret; 86 87 ret = mmap_add_dynamic_region(sq_fip_spec.offset, sq_fip_spec.offset, 88 sq_fip_spec.length, MT_RO_DATA | MT_SECURE); 89 if (ret) { 90 return ret; 91 } 92 93 ret = register_io_dev_memmap(&sq_backend_dev_con); 94 if (ret) { 95 return ret; 96 } 97 98 return io_dev_open(sq_backend_dev_con, 0, &sq_backend_dev_handle); 99 } 100 101 static int sq_io_fip_setup(void) 102 { 103 int ret; 104 105 ret = register_io_dev_fip(&sq_fip_dev_con); 106 if (ret) { 107 return ret; 108 } 109 110 return io_dev_open(sq_fip_dev_con, 0, &sq_fip_dev_handle); 111 } 112 113 int sq_io_setup(void) 114 { 115 int ret; 116 117 ret = sq_io_memmap_setup(); 118 if (ret) { 119 return ret; 120 } 121 122 ret = sq_io_fip_setup(); 123 if (ret) { 124 return ret; 125 } 126 127 return 0; 128 } 129 130 int plat_get_image_source(unsigned int image_id, uintptr_t *dev_handle, 131 uintptr_t *image_spec) 132 { 133 uintptr_t init_params; 134 135 assert(image_id < ARRAY_SIZE(sq_io_policies)); 136 137 *dev_handle = *sq_io_policies[image_id].dev_handle; 138 *image_spec = sq_io_policies[image_id].image_spec; 139 init_params = sq_io_policies[image_id].init_params; 140 141 return io_dev_init(*dev_handle, init_params); 142 } 143