Channagoud Kadabi | afd62bf | 2013-01-08 20:32:52 -0800 | [diff] [blame] | 1 | /* Copyright (c) 2012-2013, The Linux Foundation. All rights reserved. |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 2 | * |
| 3 | * Redistribution and use in source and binary forms, with or without |
| 4 | * modification, are permitted provided that the following conditions are |
| 5 | * met: |
| 6 | * * Redistributions of source code must retain the above copyright |
| 7 | * notice, this list of conditions and the following disclaimer. |
| 8 | * * Redistributions in binary form must reproduce the above |
| 9 | * copyright notice, this list of conditions and the following |
| 10 | * disclaimer in the documentation and/or other materials provided |
| 11 | * with the distribution. |
| 12 | * * Neither the name of The Linux Foundation nor the names of its |
| 13 | * contributors may be used to endorse or promote products derived |
| 14 | * from this software without specific prior written permission. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 18 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| 20 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| 23 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| 25 | * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| 26 | * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
| 28 | |
| 29 | #include <libfdt.h> |
| 30 | #include <dev_tree.h> |
| 31 | #include <lib/ptable.h> |
| 32 | #include <malloc.h> |
| 33 | #include <qpic_nand.h> |
| 34 | #include <stdlib.h> |
| 35 | #include <string.h> |
| 36 | #include <platform.h> |
| 37 | #include <board.h> |
| 38 | |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 39 | struct dt_entry_v1 |
| 40 | { |
| 41 | uint32_t platform_id; |
| 42 | uint32_t variant_id; |
| 43 | uint32_t soc_rev; |
| 44 | uint32_t offset; |
| 45 | uint32_t size; |
| 46 | }; |
| 47 | |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 48 | extern int target_is_emmc_boot(void); |
| 49 | extern uint32_t target_dev_tree_mem(void *fdt, uint32_t memory_node_offset); |
Deepa Dinamani | c55f01b | 2013-05-30 14:05:56 -0700 | [diff] [blame] | 50 | /* TODO: This function needs to be moved to target layer to check violations |
| 51 | * against all the other regions as well. |
| 52 | */ |
| 53 | extern int check_aboot_addr_range_overlap(uint32_t start, uint32_t size); |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 54 | |
Channagoud Kadabi | 11682e9 | 2013-02-28 11:21:46 -0800 | [diff] [blame] | 55 | /* |
Dima Zavin | 77e41f3 | 2013-03-06 16:10:43 -0800 | [diff] [blame] | 56 | * Will relocate the DTB to the tags addr if the device tree is found and return |
| 57 | * its address |
| 58 | * |
| 59 | * Arguments: kernel - Start address of the kernel loaded in RAM |
| 60 | * tags - Start address of the tags loaded in RAM |
Channagoud Kadabi | 704cd56 | 2013-04-25 15:19:59 -0700 | [diff] [blame] | 61 | * kernel_size - Size of the kernel in bytes |
| 62 | * |
Channagoud Kadabi | 11682e9 | 2013-02-28 11:21:46 -0800 | [diff] [blame] | 63 | * Return Value: DTB address : If appended device tree is found |
Dima Zavin | 77e41f3 | 2013-03-06 16:10:43 -0800 | [diff] [blame] | 64 | * 'NULL' : Otherwise |
Channagoud Kadabi | 11682e9 | 2013-02-28 11:21:46 -0800 | [diff] [blame] | 65 | */ |
Channagoud Kadabi | 704cd56 | 2013-04-25 15:19:59 -0700 | [diff] [blame] | 66 | void *dev_tree_appended(void *kernel, void *tags, uint32_t kernel_size) |
Channagoud Kadabi | 11682e9 | 2013-02-28 11:21:46 -0800 | [diff] [blame] | 67 | { |
| 68 | uint32_t app_dtb_offset = 0; |
Deepa Dinamani | c55f01b | 2013-05-30 14:05:56 -0700 | [diff] [blame] | 69 | uint32_t size; |
Channagoud Kadabi | 11682e9 | 2013-02-28 11:21:46 -0800 | [diff] [blame] | 70 | |
| 71 | memcpy((void*) &app_dtb_offset, (void*) (kernel + DTB_OFFSET), sizeof(uint32_t)); |
Channagoud Kadabi | 11682e9 | 2013-02-28 11:21:46 -0800 | [diff] [blame] | 72 | |
Channagoud Kadabi | 704cd56 | 2013-04-25 15:19:59 -0700 | [diff] [blame] | 73 | /* |
| 74 | * Check if we have valid offset for the DTB, if not return error. |
| 75 | * If the kernel image does not have appeneded device tree, DTB offset |
| 76 | * might contain some random address which is not accessible & cause |
| 77 | * data abort. If kernel start + dtb offset address exceed the total |
| 78 | * size of the kernel, then we dont have an appeneded DTB. |
| 79 | */ |
| 80 | if (app_dtb_offset < kernel_size) |
| 81 | { |
| 82 | if (!fdt_check_header((void*) (kernel + app_dtb_offset))) |
| 83 | { |
| 84 | void *dtb; |
| 85 | int rc; |
Dima Zavin | 77e41f3 | 2013-03-06 16:10:43 -0800 | [diff] [blame] | 86 | |
Channagoud Kadabi | 704cd56 | 2013-04-25 15:19:59 -0700 | [diff] [blame] | 87 | dprintf(INFO, "Found Appeneded Flattened Device tree\n"); |
| 88 | dtb = kernel + app_dtb_offset; |
Deepa Dinamani | c55f01b | 2013-05-30 14:05:56 -0700 | [diff] [blame] | 89 | size = fdt_totalsize(dtb); |
| 90 | if (check_aboot_addr_range_overlap(tags, size)) |
| 91 | { |
| 92 | dprintf(CRITICAL, "Appended dtb aboot overlap check failed.\n"); |
| 93 | return NULL; |
| 94 | } |
| 95 | rc = fdt_open_into(dtb, tags, size); |
Channagoud Kadabi | 704cd56 | 2013-04-25 15:19:59 -0700 | [diff] [blame] | 96 | if (rc == 0) |
| 97 | { |
| 98 | /* clear out the old DTB magic so kernel doesn't find it */ |
| 99 | *((uint32_t *)dtb) = 0; |
| 100 | return tags; |
| 101 | } |
Dima Zavin | 77e41f3 | 2013-03-06 16:10:43 -0800 | [diff] [blame] | 102 | } |
Channagoud Kadabi | 11682e9 | 2013-02-28 11:21:46 -0800 | [diff] [blame] | 103 | } |
Channagoud Kadabi | 704cd56 | 2013-04-25 15:19:59 -0700 | [diff] [blame] | 104 | else |
| 105 | dprintf(CRITICAL, "DTB offset is incorrect, kernel image does not have appended DTB\n"); |
Channagoud Kadabi | 11682e9 | 2013-02-28 11:21:46 -0800 | [diff] [blame] | 106 | |
Dima Zavin | 77e41f3 | 2013-03-06 16:10:43 -0800 | [diff] [blame] | 107 | return NULL; |
Channagoud Kadabi | 11682e9 | 2013-02-28 11:21:46 -0800 | [diff] [blame] | 108 | } |
| 109 | |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 110 | /* Returns 0 if the device tree is valid. */ |
| 111 | int dev_tree_validate(struct dt_table *table, unsigned int page_size) |
| 112 | { |
| 113 | int dt_entry_size; |
| 114 | |
| 115 | /* Validate the device tree table header */ |
| 116 | if(table->magic != DEV_TREE_MAGIC) { |
| 117 | dprintf(CRITICAL, "ERROR: Bad magic in device tree table \n"); |
| 118 | return -1; |
| 119 | } |
| 120 | |
| 121 | if (table->version == DEV_TREE_VERSION_V1) { |
| 122 | dt_entry_size = sizeof(struct dt_entry_v1); |
| 123 | } else if (table->version == DEV_TREE_VERSION_V2) { |
| 124 | dt_entry_size = sizeof(struct dt_entry); |
| 125 | } else { |
| 126 | dprintf(CRITICAL, "ERROR: Unsupported version (%d) in DT table \n", |
| 127 | table->version); |
| 128 | return -1; |
| 129 | } |
| 130 | |
| 131 | /* Restriction that the device tree entry table should be less than a page*/ |
| 132 | ASSERT(((table->num_entries * dt_entry_size)+ DEV_TREE_HEADER_SIZE) < page_size); |
| 133 | |
| 134 | return 0; |
| 135 | } |
| 136 | |
Maria Yu | ca51ee2 | 2013-06-27 21:45:24 +0800 | [diff] [blame] | 137 | static int __dev_tree_get_entry_info(struct dt_table *table, struct dt_entry *dt_entry_info, uint32_t target_variant_id); |
| 138 | |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 139 | /* Function to obtain the index information for the correct device tree |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 140 | * based on the platform data. |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 141 | * If a matching device tree is found, the information is returned in the |
| 142 | * "dt_entry_info" out parameter and a function value of 0 is returned, otherwise |
| 143 | * a non-zero function value is returned. |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 144 | */ |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 145 | int dev_tree_get_entry_info(struct dt_table *table, struct dt_entry *dt_entry_info) |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 146 | { |
Maria Yu | ca51ee2 | 2013-06-27 21:45:24 +0800 | [diff] [blame] | 147 | uint32_t target_variant_id; |
| 148 | |
| 149 | if(board_hardware_id() == HW_PLATFORM_QRD) { |
| 150 | target_variant_id = board_target_id(); |
| 151 | if (__dev_tree_get_entry_info(table, dt_entry_info, target_variant_id) == 0) { |
| 152 | return 0; |
| 153 | } |
| 154 | } |
| 155 | /* |
| 156 | * for compatible with version 1 and version 2 dtbtool |
| 157 | * will compare the subtype inside the variant id |
| 158 | */ |
| 159 | target_variant_id = board_hardware_id() | ((board_hardware_subtype() & 0xff) << 24); |
| 160 | |
| 161 | return __dev_tree_get_entry_info(table, dt_entry_info, target_variant_id); |
| 162 | } |
| 163 | |
| 164 | static int __dev_tree_get_entry_info(struct dt_table *table, struct dt_entry *dt_entry_info, uint32_t target_variant_id) |
| 165 | { |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 166 | uint32_t i; |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 167 | unsigned char *table_ptr; |
| 168 | struct dt_entry dt_entry_buf_1; |
| 169 | struct dt_entry dt_entry_buf_2; |
| 170 | struct dt_entry *cur_dt_entry; |
| 171 | struct dt_entry *best_match_dt_entry; |
| 172 | struct dt_entry_v1 *dt_entry_v1; |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 173 | |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 174 | if (!dt_entry_info) { |
| 175 | dprintf(CRITICAL, "ERROR: Bad parameter passed to %s \n", |
| 176 | __func__); |
| 177 | return -1; |
| 178 | } |
| 179 | |
| 180 | table_ptr = (unsigned char *)table + DEV_TREE_HEADER_SIZE; |
| 181 | cur_dt_entry = &dt_entry_buf_1; |
| 182 | best_match_dt_entry = NULL; |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 183 | |
| 184 | for(i = 0; i < table->num_entries; i++) |
| 185 | { |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 186 | memset(cur_dt_entry, 0, sizeof(struct dt_entry)); |
| 187 | switch(table->version) { |
| 188 | case DEV_TREE_VERSION_V1: |
| 189 | dt_entry_v1 = (struct dt_entry_v1 *)table_ptr; |
| 190 | cur_dt_entry->platform_id = dt_entry_v1->platform_id; |
| 191 | cur_dt_entry->variant_id = dt_entry_v1->variant_id; |
| 192 | cur_dt_entry->soc_rev = dt_entry_v1->soc_rev; |
| 193 | cur_dt_entry->board_hw_subtype = board_hardware_subtype(); |
| 194 | cur_dt_entry->offset = dt_entry_v1->offset; |
| 195 | cur_dt_entry->size = dt_entry_v1->size; |
| 196 | table_ptr += sizeof(struct dt_entry_v1); |
| 197 | break; |
| 198 | case DEV_TREE_VERSION_V2: |
| 199 | memcpy(cur_dt_entry, (struct dt_entry *)table_ptr, |
| 200 | sizeof(struct dt_entry)); |
| 201 | table_ptr += sizeof(struct dt_entry); |
| 202 | break; |
| 203 | default: |
| 204 | dprintf(CRITICAL, "ERROR: Unsupported version (%d) in DT table \n", |
| 205 | table->version); |
| 206 | return -1; |
| 207 | } |
| 208 | |
Channagoud Kadabi | afd62bf | 2013-01-08 20:32:52 -0800 | [diff] [blame] | 209 | /* DTBs are stored in the ascending order of soc revision. |
| 210 | * For eg: Rev0..Rev1..Rev2 & so on. |
| 211 | * we pickup the DTB with highest soc rev number which is less |
| 212 | * than or equal to actual hardware |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 213 | */ |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 214 | if((cur_dt_entry->platform_id == board_platform_id()) && |
Maria Yu | ca51ee2 | 2013-06-27 21:45:24 +0800 | [diff] [blame] | 215 | ((cur_dt_entry->variant_id | ((cur_dt_entry->board_hw_subtype & 0xff) << 24)) == target_variant_id)) |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 216 | { |
| 217 | if(cur_dt_entry->soc_rev == board_soc_version()) { |
David Ng | 618293a | 2013-06-25 12:29:03 -0700 | [diff] [blame^] | 218 | best_match_dt_entry = cur_dt_entry; |
| 219 | break; |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 220 | } else if (cur_dt_entry->soc_rev < board_soc_version()){ |
| 221 | /* Keep this as the next best candidate. */ |
| 222 | if (!best_match_dt_entry) { |
| 223 | best_match_dt_entry = cur_dt_entry; |
| 224 | cur_dt_entry = &dt_entry_buf_2; |
| 225 | } else { |
| 226 | /* Swap dt_entry buffers */ |
| 227 | struct dt_entry *temp = cur_dt_entry; |
| 228 | cur_dt_entry = best_match_dt_entry; |
| 229 | best_match_dt_entry = temp; |
| 230 | } |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 231 | } |
Channagoud Kadabi | afd62bf | 2013-01-08 20:32:52 -0800 | [diff] [blame] | 232 | } |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 233 | } |
Channagoud Kadabi | afd62bf | 2013-01-08 20:32:52 -0800 | [diff] [blame] | 234 | |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 235 | if (best_match_dt_entry) { |
| 236 | *dt_entry_info = *best_match_dt_entry; |
David Ng | 618293a | 2013-06-25 12:29:03 -0700 | [diff] [blame^] | 237 | dprintf(INFO, "Using DTB entry %u/%08x/%u/%u for device %u/%08x/%u/%u\n", |
| 238 | dt_entry_info->platform_id, dt_entry_info->soc_rev, |
| 239 | dt_entry_info->variant_id, dt_entry_info->board_hw_subtype, |
| 240 | board_platform_id(), board_soc_version(), |
| 241 | board_hardware_id(), board_hardware_subtype()); |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 242 | return 0; |
Channagoud Kadabi | afd62bf | 2013-01-08 20:32:52 -0800 | [diff] [blame] | 243 | } |
| 244 | |
David Ng | 618293a | 2013-06-25 12:29:03 -0700 | [diff] [blame^] | 245 | dprintf(CRITICAL, "ERROR: Unable to find suitable device tree for device (%u/0x%08x/%u/%u)\n", |
| 246 | board_platform_id(), board_soc_version(), |
| 247 | board_hardware_id(), board_hardware_subtype()); |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 248 | return -1; |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 249 | } |
| 250 | |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 251 | /* Function to add the first RAM partition info to the device tree. |
| 252 | * Note: The function replaces the reg property in the "/memory" node |
| 253 | * with the addr and size provided. |
| 254 | */ |
| 255 | int dev_tree_add_first_mem_info(uint32_t *fdt, uint32_t offset, uint32_t addr, uint32_t size) |
| 256 | { |
| 257 | int ret; |
| 258 | |
| 259 | ret = fdt_setprop_u32(fdt, offset, "reg", addr); |
| 260 | |
| 261 | if (ret) |
| 262 | { |
| 263 | dprintf(CRITICAL, "Failed to add the memory information addr: %d\n", |
| 264 | ret); |
| 265 | } |
| 266 | |
| 267 | |
| 268 | ret = fdt_appendprop_u32(fdt, offset, "reg", size); |
| 269 | |
| 270 | if (ret) |
| 271 | { |
| 272 | dprintf(CRITICAL, "Failed to add the memory information size: %d\n", |
| 273 | ret); |
| 274 | } |
| 275 | |
| 276 | return ret; |
| 277 | } |
| 278 | |
| 279 | /* Function to add the subsequent RAM partition info to the device tree. */ |
| 280 | int dev_tree_add_mem_info(void *fdt, uint32_t offset, uint32_t addr, uint32_t size) |
| 281 | { |
| 282 | static int mem_info_cnt = 0; |
| 283 | int ret; |
| 284 | |
| 285 | if (!mem_info_cnt) |
| 286 | { |
| 287 | /* Replace any other reg prop in the memory node. */ |
| 288 | ret = fdt_setprop_u32(fdt, offset, "reg", addr); |
| 289 | mem_info_cnt = 1; |
| 290 | } |
| 291 | else |
| 292 | { |
| 293 | /* Append the mem info to the reg prop for subsequent nodes. */ |
| 294 | ret = fdt_appendprop_u32(fdt, offset, "reg", addr); |
| 295 | } |
| 296 | |
| 297 | if (ret) |
| 298 | { |
| 299 | dprintf(CRITICAL, "Failed to add the memory information addr: %d\n", |
| 300 | ret); |
| 301 | } |
| 302 | |
| 303 | |
| 304 | ret = fdt_appendprop_u32(fdt, offset, "reg", size); |
| 305 | |
| 306 | if (ret) |
| 307 | { |
| 308 | dprintf(CRITICAL, "Failed to add the memory information size: %d\n", |
| 309 | ret); |
| 310 | } |
| 311 | |
| 312 | return ret; |
| 313 | } |
| 314 | |
| 315 | /* Top level function that updates the device tree. */ |
| 316 | int update_device_tree(void *fdt, const char *cmdline, |
| 317 | void *ramdisk, uint32_t ramdisk_size) |
| 318 | { |
| 319 | int ret = 0; |
| 320 | uint32_t offset; |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 321 | |
| 322 | /* Check the device tree header */ |
| 323 | ret = fdt_check_header(fdt); |
| 324 | if (ret) |
| 325 | { |
| 326 | dprintf(CRITICAL, "Invalid device tree header \n"); |
| 327 | return ret; |
| 328 | } |
| 329 | |
Deepa Dinamani | 1c97073 | 2013-04-19 14:23:01 -0700 | [diff] [blame] | 330 | /* Add padding to make space for new nodes and properties. */ |
| 331 | ret = fdt_open_into(fdt, fdt, fdt_totalsize(fdt) + DTB_PAD_SIZE); |
| 332 | if (ret!= 0) |
| 333 | { |
| 334 | dprintf(CRITICAL, "Failed to move/resize dtb buffer: %d\n", ret); |
| 335 | return ret; |
| 336 | } |
| 337 | |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 338 | /* Get offset of the memory node */ |
| 339 | ret = fdt_path_offset(fdt, "/memory"); |
| 340 | if (ret < 0) |
| 341 | { |
| 342 | dprintf(CRITICAL, "Could not find memory node.\n"); |
| 343 | return ret; |
| 344 | } |
| 345 | |
| 346 | offset = ret; |
| 347 | |
| 348 | ret = target_dev_tree_mem(fdt, offset); |
| 349 | if(ret) |
| 350 | { |
| 351 | dprintf(CRITICAL, "ERROR: Cannot update memory node\n"); |
| 352 | return ret; |
| 353 | } |
| 354 | |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 355 | /* Get offset of the chosen node */ |
| 356 | ret = fdt_path_offset(fdt, "/chosen"); |
| 357 | if (ret < 0) |
| 358 | { |
| 359 | dprintf(CRITICAL, "Could not find chosen node.\n"); |
| 360 | return ret; |
| 361 | } |
| 362 | |
| 363 | offset = ret; |
| 364 | /* Adding the cmdline to the chosen node */ |
Amol Jadi | 10c7d1c | 2013-01-25 13:24:29 -0800 | [diff] [blame] | 365 | ret = fdt_setprop_string(fdt, offset, (const char*)"bootargs", (const void*)cmdline); |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 366 | if (ret) |
| 367 | { |
| 368 | dprintf(CRITICAL, "ERROR: Cannot update chosen node [bootargs]\n"); |
| 369 | return ret; |
| 370 | } |
| 371 | |
| 372 | /* Adding the initrd-start to the chosen node */ |
| 373 | ret = fdt_setprop_u32(fdt, offset, "linux,initrd-start", (uint32_t)ramdisk); |
| 374 | if (ret) |
| 375 | { |
| 376 | dprintf(CRITICAL, "ERROR: Cannot update chosen node [linux,initrd-start]\n"); |
| 377 | return ret; |
| 378 | } |
| 379 | |
| 380 | /* Adding the initrd-end to the chosen node */ |
| 381 | ret = fdt_setprop_u32(fdt, offset, "linux,initrd-end", ((uint32_t)ramdisk + ramdisk_size)); |
| 382 | if (ret) |
| 383 | { |
| 384 | dprintf(CRITICAL, "ERROR: Cannot update chosen node [linux,initrd-end]\n"); |
| 385 | return ret; |
| 386 | } |
| 387 | |
| 388 | fdt_pack(fdt); |
| 389 | |
| 390 | return ret; |
| 391 | } |
Maria Yu | ca51ee2 | 2013-06-27 21:45:24 +0800 | [diff] [blame] | 392 | |