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 bl33_uuid_spec = { 77 .uuid = UUID_NON_TRUSTED_FIRMWARE_BL33, 78 }; 79 80 static const struct plat_io_policy policies[] = { 81 [FIP_IMAGE_ID] = { 82 &ufs_dev_handle, 83 (uintptr_t)&ufs_fip_spec, 84 check_ufs 85 }, 86 [BL2_IMAGE_ID] = { 87 &fip_dev_handle, 88 (uintptr_t)&bl2_uuid_spec, 89 check_fip 90 }, 91 [SCP_BL2_IMAGE_ID] = { 92 &fip_dev_handle, 93 (uintptr_t)&scp_bl2_uuid_spec, 94 check_fip 95 }, 96 [BL31_IMAGE_ID] = { 97 &fip_dev_handle, 98 (uintptr_t)&bl31_uuid_spec, 99 check_fip 100 }, 101 [BL32_IMAGE_ID] = { 102 &fip_dev_handle, 103 (uintptr_t)&bl32_uuid_spec, 104 check_fip 105 }, 106 [BL33_IMAGE_ID] = { 107 &fip_dev_handle, 108 (uintptr_t)&bl33_uuid_spec, 109 check_fip 110 }, 111 [BL2U_IMAGE_ID] = { 112 &ufs_dev_handle, 113 (uintptr_t)&ufs_data_spec, 114 check_ufs 115 } 116 }; 117 118 static int check_ufs(const uintptr_t spec) 119 { 120 int result; 121 uintptr_t local_handle; 122 123 result = io_dev_init(ufs_dev_handle, (uintptr_t)NULL); 124 if (result == 0) { 125 result = io_open(ufs_dev_handle, spec, &local_handle); 126 if (result == 0) 127 io_close(local_handle); 128 } 129 return result; 130 } 131 132 static int check_fip(const uintptr_t spec) 133 { 134 int result; 135 uintptr_t local_image_handle; 136 137 /* See if a Firmware Image Package is available */ 138 result = io_dev_init(fip_dev_handle, (uintptr_t)FIP_IMAGE_ID); 139 if (result == 0) { 140 result = io_open(fip_dev_handle, spec, &local_image_handle); 141 if (result == 0) { 142 VERBOSE("Using FIP\n"); 143 io_close(local_image_handle); 144 } 145 } 146 return result; 147 } 148 149 void hikey960_io_setup(void) 150 { 151 int result; 152 153 result = register_io_dev_block(&ufs_dev_con); 154 assert(result == 0); 155 156 result = register_io_dev_fip(&fip_dev_con); 157 assert(result == 0); 158 159 result = io_dev_open(ufs_dev_con, (uintptr_t)&ufs_dev_spec, 160 &ufs_dev_handle); 161 assert(result == 0); 162 163 result = io_dev_open(fip_dev_con, (uintptr_t)NULL, &fip_dev_handle); 164 assert(result == 0); 165 166 /* Ignore improbable errors in release builds */ 167 (void)result; 168 } 169 170 /* Return an IO device handle and specification which can be used to access 171 * an image. Use this to enforce platform load policy 172 */ 173 int plat_get_image_source(unsigned int image_id, uintptr_t *dev_handle, 174 uintptr_t *image_spec) 175 { 176 int result; 177 const struct plat_io_policy *policy; 178 179 assert(image_id < ARRAY_SIZE(policies)); 180 181 policy = &policies[image_id]; 182 result = policy->check(policy->image_spec); 183 assert(result == 0); 184 185 *image_spec = policy->image_spec; 186 *dev_handle = *(policy->dev_handle); 187 188 return result; 189 } 190 191 size_t ufs_read_lun3_blks(int lba, uintptr_t buf, size_t size) 192 { 193 return ufs_read_blocks(3, lba, buf, size); 194 } 195 196 size_t ufs_write_lun3_blks(int lba, const uintptr_t buf, size_t size) 197 { 198 return ufs_write_blocks(3, lba, buf, size); 199 } 200