Bryan O'Donoghue | 4df2f17 | 2018-05-24 13:00:57 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved. |
| 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | */ |
| 6 | #include <assert.h> |
| 7 | #include <debug.h> |
| 8 | #include <mmc.h> |
| 9 | #include <firmware_image_package.h> |
| 10 | #include <io_block.h> |
| 11 | #include <io_driver.h> |
| 12 | #include <io_fip.h> |
| 13 | #include <io_memmap.h> |
| 14 | #include <platform_def.h> |
| 15 | |
| 16 | static const io_dev_connector_t *fip_dev_con; |
| 17 | static uintptr_t fip_dev_handle; |
| 18 | |
| 19 | #ifndef WARP7_FIP_MMAP |
| 20 | static const io_dev_connector_t *mmc_dev_con; |
| 21 | static uintptr_t mmc_dev_handle; |
| 22 | |
| 23 | static const io_block_spec_t mmc_fip_spec = { |
| 24 | .offset = WARP7_FIP_MMC_BASE, |
| 25 | .length = WARP7_FIP_SIZE |
| 26 | }; |
| 27 | |
| 28 | static const io_block_dev_spec_t mmc_dev_spec = { |
| 29 | /* It's used as temp buffer in block driver. */ |
| 30 | .buffer = { |
| 31 | .offset = WARP7_FIP_BASE, |
| 32 | /* do we need a new value? */ |
| 33 | .length = WARP7_FIP_SIZE |
| 34 | }, |
| 35 | .ops = { |
| 36 | .read = mmc_read_blocks, |
| 37 | .write = mmc_write_blocks, |
| 38 | }, |
| 39 | .block_size = MMC_BLOCK_SIZE, |
| 40 | }; |
| 41 | |
| 42 | static int open_mmc(const uintptr_t spec); |
| 43 | |
| 44 | #else |
| 45 | static const io_dev_connector_t *memmap_dev_con; |
| 46 | static uintptr_t memmap_dev_handle; |
| 47 | |
| 48 | static const io_block_spec_t fip_block_spec = { |
| 49 | .offset = WARP7_FIP_BASE, |
| 50 | .length = WARP7_FIP_SIZE |
| 51 | }; |
| 52 | static int open_memmap(const uintptr_t spec); |
| 53 | #endif |
| 54 | static int open_fip(const uintptr_t spec); |
| 55 | |
| 56 | static const io_uuid_spec_t bl32_uuid_spec = { |
| 57 | .uuid = UUID_SECURE_PAYLOAD_BL32, |
| 58 | }; |
| 59 | |
| 60 | static const io_uuid_spec_t hw_config_uuid_spec = { |
| 61 | .uuid = UUID_HW_CONFIG, |
| 62 | }; |
| 63 | |
| 64 | static const io_uuid_spec_t bl32_extra1_uuid_spec = { |
| 65 | .uuid = UUID_SECURE_PAYLOAD_BL32_EXTRA1, |
| 66 | }; |
| 67 | |
| 68 | static const io_uuid_spec_t bl32_extra2_uuid_spec = { |
| 69 | .uuid = UUID_SECURE_PAYLOAD_BL32_EXTRA2, |
| 70 | }; |
| 71 | |
| 72 | static const io_uuid_spec_t bl33_uuid_spec = { |
| 73 | .uuid = UUID_NON_TRUSTED_FIRMWARE_BL33, |
| 74 | }; |
| 75 | |
| 76 | /* TODO: this structure is replicated multiple times. rationalize it ! */ |
| 77 | struct plat_io_policy { |
| 78 | uintptr_t *dev_handle; |
| 79 | uintptr_t image_spec; |
| 80 | int (*check)(const uintptr_t spec); |
| 81 | }; |
| 82 | |
| 83 | static const struct plat_io_policy policies[] = { |
| 84 | #ifndef WARP7_FIP_MMAP |
| 85 | [FIP_IMAGE_ID] = { |
| 86 | &mmc_dev_handle, |
| 87 | (uintptr_t)&mmc_fip_spec, |
| 88 | open_mmc |
| 89 | }, |
| 90 | #else |
| 91 | [FIP_IMAGE_ID] = { |
| 92 | &memmap_dev_handle, |
| 93 | (uintptr_t)&fip_block_spec, |
| 94 | open_memmap |
| 95 | }, |
| 96 | #endif |
| 97 | [BL32_IMAGE_ID] = { |
| 98 | &fip_dev_handle, |
| 99 | (uintptr_t)&bl32_uuid_spec, |
| 100 | open_fip |
| 101 | }, |
| 102 | [BL32_EXTRA1_IMAGE_ID] = { |
| 103 | &fip_dev_handle, |
| 104 | (uintptr_t)&bl32_extra1_uuid_spec, |
| 105 | open_fip |
| 106 | }, |
| 107 | [BL32_EXTRA2_IMAGE_ID] = { |
| 108 | &fip_dev_handle, |
| 109 | (uintptr_t)&bl32_extra2_uuid_spec, |
| 110 | open_fip |
| 111 | }, |
| 112 | [HW_CONFIG_ID] = { |
| 113 | &fip_dev_handle, |
| 114 | (uintptr_t)&hw_config_uuid_spec, |
| 115 | open_fip |
| 116 | }, |
| 117 | [BL33_IMAGE_ID] = { |
| 118 | &fip_dev_handle, |
| 119 | (uintptr_t)&bl33_uuid_spec, |
| 120 | open_fip |
| 121 | } |
| 122 | }; |
| 123 | |
| 124 | static int open_fip(const uintptr_t spec) |
| 125 | { |
| 126 | int result; |
| 127 | uintptr_t local_image_handle; |
| 128 | |
| 129 | /* See if a Firmware Image Package is available */ |
| 130 | result = io_dev_init(fip_dev_handle, (uintptr_t)FIP_IMAGE_ID); |
| 131 | if (result == 0) { |
| 132 | result = io_open(fip_dev_handle, spec, &local_image_handle); |
| 133 | if (result == 0) { |
| 134 | VERBOSE("Using FIP\n"); |
| 135 | io_close(local_image_handle); |
| 136 | } |
| 137 | } |
| 138 | return result; |
| 139 | } |
| 140 | |
| 141 | #ifndef WARP7_FIP_MMAP |
| 142 | static int open_mmc(const uintptr_t spec) |
| 143 | { |
| 144 | int result; |
| 145 | uintptr_t local_handle; |
| 146 | |
| 147 | result = io_dev_init(mmc_dev_handle, (uintptr_t)NULL); |
| 148 | if (result == 0) { |
| 149 | result = io_open(mmc_dev_handle, spec, &local_handle); |
| 150 | if (result == 0) |
| 151 | io_close(local_handle); |
| 152 | } |
| 153 | return result; |
| 154 | } |
| 155 | #else |
| 156 | static int open_memmap(const uintptr_t spec) |
| 157 | { |
| 158 | int result; |
| 159 | uintptr_t local_image_handle; |
| 160 | |
| 161 | result = io_dev_init(memmap_dev_handle, (uintptr_t)NULL); |
| 162 | if (result == 0) { |
| 163 | result = io_open(memmap_dev_handle, spec, &local_image_handle); |
| 164 | if (result == 0) { |
| 165 | VERBOSE("Using Memmap\n"); |
| 166 | io_close(local_image_handle); |
| 167 | } |
| 168 | } |
| 169 | return result; |
| 170 | } |
| 171 | #endif |
| 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 | void plat_warp7_io_setup(void) |
| 192 | { |
| 193 | int result __unused; |
| 194 | |
| 195 | #ifndef WARP7_FIP_MMAP |
| 196 | result = register_io_dev_block(&mmc_dev_con); |
| 197 | assert(result == 0); |
| 198 | |
| 199 | result = io_dev_open(mmc_dev_con, (uintptr_t)&mmc_dev_spec, |
| 200 | &mmc_dev_handle); |
| 201 | assert(result == 0); |
| 202 | |
| 203 | #else |
| 204 | result = register_io_dev_memmap(&memmap_dev_con); |
| 205 | assert(result == 0); |
| 206 | |
| 207 | result = io_dev_open(memmap_dev_con, (uintptr_t)NULL, |
| 208 | &memmap_dev_handle); |
| 209 | assert(result == 0); |
| 210 | |
| 211 | #endif |
| 212 | result = register_io_dev_fip(&fip_dev_con); |
| 213 | assert(result == 0); |
| 214 | |
| 215 | result = io_dev_open(fip_dev_con, (uintptr_t)NULL, |
| 216 | &fip_dev_handle); |
| 217 | assert(result == 0); |
| 218 | } |