1 /* 2 * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <arch_helpers.h> 8 #include <assert.h> 9 #include <debug.h> 10 #include <errno.h> 11 #include <firmware_image_package.h> 12 #include <io_block.h> 13 #include <io_driver.h> 14 #include <io_fip.h> 15 #include <io_memmap.h> 16 #include <io_storage.h> 17 #include <mmio.h> 18 #include <platform_def.h> 19 #include <semihosting.h> /* For FOPEN_MODE_... */ 20 #include <string.h> 21 #include <ufs.h> 22 23 struct plat_io_policy { 24 uintptr_t *dev_handle; 25 uintptr_t image_spec; 26 int (*check)(const uintptr_t spec); 27 }; 28 29 static const io_dev_connector_t *ufs_dev_con, *fip_dev_con; 30 static uintptr_t ufs_dev_handle, fip_dev_handle; 31 32 static int check_ufs(const uintptr_t spec); 33 static int check_fip(const uintptr_t spec); 34 size_t ufs_read_lun3_blks(int lba, uintptr_t buf, size_t size); 35 size_t ufs_write_lun3_blks(int lba, const uintptr_t buf, size_t size); 36 37 static const io_block_spec_t ufs_fip_spec = { 38 .offset = HIKEY960_FIP_BASE, 39 .length = HIKEY960_FIP_MAX_SIZE, 40 }; 41 42 static const io_block_spec_t ufs_data_spec = { 43 .offset = 0, 44 .length = 256 << 20, 45 }; 46 47 static const io_block_dev_spec_t ufs_dev_spec = { 48 /* It's used as temp buffer in block driver. */ 49 .buffer = { 50 .offset = HIKEY960_UFS_DATA_BASE, 51 .length = HIKEY960_UFS_DATA_SIZE, 52 }, 53 .ops = { 54 .read = ufs_read_lun3_blks, 55 .write = ufs_write_lun3_blks, 56 }, 57 .block_size = UFS_BLOCK_SIZE, 58 }; 59 60 static const io_uuid_spec_t bl2_uuid_spec = { 61 .uuid = UUID_TRUSTED_BOOT_FIRMWARE_BL2, 62 }; 63 64 static const io_uuid_spec_t scp_bl2_uuid_spec = { 65 .uuid = UUID_SCP_FIRMWARE_SCP_BL2, 66 }; 67 68 static const io_uuid_spec_t bl31_uuid_spec = { 69 .uuid = UUID_EL3_RUNTIME_FIRMWARE_BL31, 70 }; 71 72 static const io_uuid_spec_t bl32_uuid_spec = { 73 .uuid = UUID_SECURE_PAYLOAD_BL32, 74 }; 75 76 static const io_uuid_spec_t bl32_extra1_uuid_spec = { 77 .uuid = UUID_SECURE_PAYLOAD_BL32_EXTRA1, 78 }; 79 80 static const io_uuid_spec_t bl32_extra2_uuid_spec = { 81 .uuid = UUID_SECURE_PAYLOAD_BL32_EXTRA2, 82 }; 83 84 static const io_uuid_spec_t bl33_uuid_spec = { 85 .uuid = UUID_NON_TRUSTED_FIRMWARE_BL33, 86 }; 87 88 static const struct plat_io_policy policies[] = { 89 [FIP_IMAGE_ID] = { 90 &ufs_dev_handle, 91 (uintptr_t)&ufs_fip_spec, 92 check_ufs 93 }, 94 [BL2_IMAGE_ID] = { 95 &fip_dev_handle, 96 (uintptr_t)&bl2_uuid_spec, 97 check_fip 98 }, 99 [SCP_BL2_IMAGE_ID] = { 100 &fip_dev_handle, 101 (uintptr_t)&scp_bl2_uuid_spec, 102 check_fip 103 }, 104 [BL31_IMAGE_ID] = { 105 &fip_dev_handle, 106 (uintptr_t)&bl31_uuid_spec, 107 check_fip 108 }, 109 [BL32_IMAGE_ID] = { 110 &fip_dev_handle, 111 (uintptr_t)&bl32_uuid_spec, 112 check_fip 113 }, 114 [BL32_EXTRA1_IMAGE_ID] = { 115 &fip_dev_handle, 116 (uintptr_t)&bl32_extra1_uuid_spec, 117 check_fip 118 }, 119 [BL32_EXTRA2_IMAGE_ID] = { 120 &fip_dev_handle, 121 (uintptr_t)&bl32_extra2_uuid_spec, 122 check_fip 123 }, 124 [BL33_IMAGE_ID] = { 125 &fip_dev_handle, 126 (uintptr_t)&bl33_uuid_spec, 127 check_fip 128 }, 129 [BL2U_IMAGE_ID] = { 130 &ufs_dev_handle, 131 (uintptr_t)&ufs_data_spec, 132 check_ufs 133 } 134 }; 135 136 static int check_ufs(const uintptr_t spec) 137 { 138 int result; 139 uintptr_t local_handle; 140 141 result = io_dev_init(ufs_dev_handle, (uintptr_t)NULL); 142 if (result == 0) { 143 result = io_open(ufs_dev_handle, spec, &local_handle); 144 if (result == 0) 145 io_close(local_handle); 146 } 147 return result; 148 } 149 150 static int check_fip(const uintptr_t spec) 151 { 152 int result; 153 uintptr_t local_image_handle; 154 155 /* See if a Firmware Image Package is available */ 156 result = io_dev_init(fip_dev_handle, (uintptr_t)FIP_IMAGE_ID); 157 if (result == 0) { 158 result = io_open(fip_dev_handle, spec, &local_image_handle); 159 if (result == 0) { 160 VERBOSE("Using FIP\n"); 161 io_close(local_image_handle); 162 } 163 } 164 return result; 165 } 166 167 void hikey960_io_setup(void) 168 { 169 int result; 170 171 result = register_io_dev_block(&ufs_dev_con); 172 assert(result == 0); 173 174 result = register_io_dev_fip(&fip_dev_con); 175 assert(result == 0); 176 177 result = io_dev_open(ufs_dev_con, (uintptr_t)&ufs_dev_spec, 178 &ufs_dev_handle); 179 assert(result == 0); 180 181 result = io_dev_open(fip_dev_con, (uintptr_t)NULL, &fip_dev_handle); 182 assert(result == 0); 183 184 /* Ignore improbable errors in release builds */ 185 (void)result; 186 } 187 188 /* Return an IO device handle and specification which can be used to access 189 * an image. Use this to enforce platform load policy 190 */ 191 int plat_get_image_source(unsigned int image_id, uintptr_t *dev_handle, 192 uintptr_t *image_spec) 193 { 194 int result; 195 const struct plat_io_policy *policy; 196 197 assert(image_id < ARRAY_SIZE(policies)); 198 199 policy = &policies[image_id]; 200 result = policy->check(policy->image_spec); 201 assert(result == 0); 202 203 *image_spec = policy->image_spec; 204 *dev_handle = *(policy->dev_handle); 205 206 return result; 207 } 208 209 size_t ufs_read_lun3_blks(int lba, uintptr_t buf, size_t size) 210 { 211 return ufs_read_blocks(3, lba, buf, size); 212 } 213 214 size_t ufs_write_lun3_blks(int lba, const uintptr_t buf, size_t size) 215 { 216 return ufs_write_blocks(3, lba, buf, size); 217 } 218
