David Ng | 59c4a78 | 2015-05-14 15:51:44 -0700 | [diff] [blame] | 1 | /* Copyright (c) 2012-2015, 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> |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 38 | #include <list.h> |
| 39 | #include <kernel/thread.h> |
vijay kumar | 4f4405f | 2014-08-08 11:49:53 +0530 | [diff] [blame] | 40 | #include <target.h> |
Channagoud Kadabi | ffaea42 | 2014-12-05 15:45:41 -0800 | [diff] [blame] | 41 | #include <partial_goods.h> |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 42 | |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 43 | struct dt_entry_v1 |
| 44 | { |
| 45 | uint32_t platform_id; |
| 46 | uint32_t variant_id; |
| 47 | uint32_t soc_rev; |
| 48 | uint32_t offset; |
| 49 | uint32_t size; |
| 50 | }; |
| 51 | |
Sundarajan Srinivasan | 44de434 | 2013-07-08 14:47:13 -0700 | [diff] [blame] | 52 | static struct dt_mem_node_info mem_node; |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 53 | static int platform_dt_absolute_match(struct dt_entry *cur_dt_entry, struct dt_entry_node *dt_list); |
| 54 | static struct dt_entry *platform_dt_match_best(struct dt_entry_node *dt_list); |
| 55 | static int update_dtb_entry_node(struct dt_entry_node *dt_list, uint32_t dtb_info); |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 56 | extern int target_is_emmc_boot(void); |
| 57 | 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] | 58 | /* TODO: This function needs to be moved to target layer to check violations |
| 59 | * against all the other regions as well. |
| 60 | */ |
| 61 | 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] | 62 | |
Vijay Kumar Pendoti | 0f249e3 | 2016-03-18 18:17:01 +0530 | [diff] [blame^] | 63 | int fdt_check_header_ext(const void *fdt) |
| 64 | { |
| 65 | uintptr_t fdt_start, fdt_end; |
| 66 | fdt_start = (uintptr_t)fdt; |
| 67 | if(fdt_start + fdt_totalsize(fdt) < fdt_start) |
| 68 | { |
| 69 | dprintf(CRITICAL,"Integer over in fdt header %s\t%d",__func__,__LINE__); |
| 70 | return FDT_ERR_BADOFFSET; |
| 71 | } |
| 72 | fdt_end = fdt_start + fdt_totalsize(fdt); |
| 73 | |
| 74 | if (((uint64_t)fdt_start + (uint64_t)fdt_off_dt_struct(fdt) + (uint64_t)fdt_size_dt_struct(fdt)) > UINT_MAX) |
| 75 | return FDT_ERR_BADOFFSET; |
| 76 | |
| 77 | if ((fdt_start + fdt_off_dt_struct(fdt) + fdt_size_dt_struct(fdt)) > fdt_end) |
| 78 | return FDT_ERR_BADOFFSET; |
| 79 | |
| 80 | if (((uint64_t)fdt_start + (uint64_t)fdt_off_dt_strings(fdt) + (uint64_t)fdt_size_dt_strings(fdt)) > UINT_MAX) |
| 81 | return FDT_ERR_BADOFFSET; |
| 82 | |
| 83 | if ((fdt_start + fdt_off_dt_strings(fdt) + fdt_size_dt_strings(fdt)) > fdt_end) |
| 84 | return FDT_ERR_BADOFFSET; |
| 85 | |
| 86 | return 0; |
| 87 | } |
| 88 | |
Shashank Mittal | c0f1028 | 2013-07-15 14:53:31 -0700 | [diff] [blame] | 89 | /* Returns soc version if platform id and hardware id matches |
| 90 | otherwise return 0xFFFFFFFF */ |
| 91 | #define INVALID_SOC_REV_ID 0XFFFFFFFF |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 92 | |
| 93 | /* Add function to allocate dt entry list, used for recording |
| 94 | * the entry which conform to platform_dt_absolute_match() |
| 95 | */ |
| 96 | static struct dt_entry_node *dt_entry_list_init(void) |
| 97 | { |
| 98 | struct dt_entry_node *dt_node_member = NULL; |
| 99 | |
| 100 | dt_node_member = (struct dt_entry_node *) |
| 101 | malloc(sizeof(struct dt_entry_node)); |
| 102 | |
| 103 | ASSERT(dt_node_member); |
| 104 | |
| 105 | list_clear_node(&dt_node_member->node); |
| 106 | dt_node_member->dt_entry_m = (struct dt_entry *) |
| 107 | malloc(sizeof(struct dt_entry)); |
| 108 | ASSERT(dt_node_member->dt_entry_m); |
| 109 | |
| 110 | memset(dt_node_member->dt_entry_m ,0 ,sizeof(struct dt_entry)); |
| 111 | return dt_node_member; |
| 112 | } |
| 113 | |
| 114 | static void insert_dt_entry_in_queue(struct dt_entry_node *dt_list, struct dt_entry_node *dt_node_member) |
| 115 | { |
| 116 | list_add_tail(&dt_list->node, &dt_node_member->node); |
| 117 | } |
| 118 | |
| 119 | static void dt_entry_list_delete(struct dt_entry_node *dt_node_member) |
| 120 | { |
| 121 | if (list_in_list(&dt_node_member->node)) { |
| 122 | list_delete(&dt_node_member->node); |
| 123 | free(dt_node_member->dt_entry_m); |
| 124 | free(dt_node_member); |
| 125 | } |
| 126 | } |
| 127 | |
| 128 | static int dev_tree_compatible(void *dtb, uint32_t dtb_size, struct dt_entry_node *dtb_list) |
Dima Zavin | c46f838 | 2013-05-03 12:23:06 -0700 | [diff] [blame] | 129 | { |
| 130 | int root_offset; |
Channagoud Kadabi | a4dbe33 | 2013-09-05 17:44:11 -0700 | [diff] [blame] | 131 | const void *prop = NULL; |
| 132 | const char *plat_prop = NULL; |
| 133 | const char *board_prop = NULL; |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 134 | const char *pmic_prop = NULL; |
Channagoud Kadabi | a4dbe33 | 2013-09-05 17:44:11 -0700 | [diff] [blame] | 135 | char *model = NULL; |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 136 | struct dt_entry *cur_dt_entry; |
| 137 | struct dt_entry *dt_entry_array = NULL; |
Channagoud Kadabi | a4dbe33 | 2013-09-05 17:44:11 -0700 | [diff] [blame] | 138 | struct board_id *board_data = NULL; |
| 139 | struct plat_id *platform_data = NULL; |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 140 | struct pmic_id *pmic_data = NULL; |
Dima Zavin | c46f838 | 2013-05-03 12:23:06 -0700 | [diff] [blame] | 141 | int len; |
Channagoud Kadabi | a4dbe33 | 2013-09-05 17:44:11 -0700 | [diff] [blame] | 142 | int len_board_id; |
| 143 | int len_plat_id; |
| 144 | int min_plat_id_len = 0; |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 145 | int len_pmic_id; |
Channagoud Kadabi | a4dbe33 | 2013-09-05 17:44:11 -0700 | [diff] [blame] | 146 | uint32_t dtb_ver; |
| 147 | uint32_t num_entries = 0; |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 148 | uint32_t i, j, k, n; |
Channagoud Kadabi | a4dbe33 | 2013-09-05 17:44:11 -0700 | [diff] [blame] | 149 | uint32_t msm_data_count; |
| 150 | uint32_t board_data_count; |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 151 | uint32_t pmic_data_count; |
Dima Zavin | c46f838 | 2013-05-03 12:23:06 -0700 | [diff] [blame] | 152 | |
| 153 | root_offset = fdt_path_offset(dtb, "/"); |
| 154 | if (root_offset < 0) |
| 155 | return false; |
| 156 | |
| 157 | prop = fdt_getprop(dtb, root_offset, "model", &len); |
| 158 | if (prop && len > 0) { |
Channagoud Kadabi | a4dbe33 | 2013-09-05 17:44:11 -0700 | [diff] [blame] | 159 | model = (char *) malloc(sizeof(char) * len); |
| 160 | ASSERT(model); |
| 161 | strlcpy(model, prop, len); |
Dima Zavin | c46f838 | 2013-05-03 12:23:06 -0700 | [diff] [blame] | 162 | } else { |
vijay kumar | 89d36d8 | 2014-06-30 19:32:18 +0530 | [diff] [blame] | 163 | dprintf(INFO, "model does not exist in device tree\n"); |
Dima Zavin | c46f838 | 2013-05-03 12:23:06 -0700 | [diff] [blame] | 164 | } |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 165 | /* Find the pmic-id prop from DTB , if pmic-id is present then |
| 166 | * the DTB is version 3, otherwise find the board-id prop from DTB , |
| 167 | * if board-id is present then the DTB is version 2 */ |
| 168 | pmic_prop = (const char *)fdt_getprop(dtb, root_offset, "qcom,pmic-id", &len_pmic_id); |
Channagoud Kadabi | a4dbe33 | 2013-09-05 17:44:11 -0700 | [diff] [blame] | 169 | board_prop = (const char *)fdt_getprop(dtb, root_offset, "qcom,board-id", &len_board_id); |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 170 | if (pmic_prop && (len_pmic_id > 0) && board_prop && (len_board_id > 0)) { |
| 171 | if ((len_pmic_id % PMIC_ID_SIZE) || (len_board_id % BOARD_ID_SIZE)) |
| 172 | { |
| 173 | dprintf(CRITICAL, "qcom,pmic-id(%d) or qcom,board-id(%d) in device tree is not a multiple of (%d %d)\n", |
| 174 | len_pmic_id, len_board_id, PMIC_ID_SIZE, BOARD_ID_SIZE); |
| 175 | return false; |
| 176 | } |
| 177 | dtb_ver = DEV_TREE_VERSION_V3; |
| 178 | min_plat_id_len = PLAT_ID_SIZE; |
| 179 | } else if (board_prop && len_board_id > 0) { |
vijay kumar | 89d36d8 | 2014-06-30 19:32:18 +0530 | [diff] [blame] | 180 | if (len_board_id % BOARD_ID_SIZE) |
| 181 | { |
| 182 | dprintf(CRITICAL, "qcom,board-id in device tree is (%d) not a multiple of (%d)\n", |
| 183 | len_board_id, BOARD_ID_SIZE); |
| 184 | return false; |
| 185 | } |
Channagoud Kadabi | a4dbe33 | 2013-09-05 17:44:11 -0700 | [diff] [blame] | 186 | dtb_ver = DEV_TREE_VERSION_V2; |
| 187 | min_plat_id_len = PLAT_ID_SIZE; |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 188 | } else { |
Channagoud Kadabi | a4dbe33 | 2013-09-05 17:44:11 -0700 | [diff] [blame] | 189 | dtb_ver = DEV_TREE_VERSION_V1; |
| 190 | min_plat_id_len = DT_ENTRY_V1_SIZE; |
| 191 | } |
| 192 | |
| 193 | /* Get the msm-id prop from DTB */ |
| 194 | plat_prop = (const char *)fdt_getprop(dtb, root_offset, "qcom,msm-id", &len_plat_id); |
| 195 | if (!plat_prop || len_plat_id <= 0) { |
Dima Zavin | c46f838 | 2013-05-03 12:23:06 -0700 | [diff] [blame] | 196 | dprintf(INFO, "qcom,msm-id entry not found\n"); |
| 197 | return false; |
Channagoud Kadabi | a4dbe33 | 2013-09-05 17:44:11 -0700 | [diff] [blame] | 198 | } else if (len_plat_id % min_plat_id_len) { |
| 199 | dprintf(INFO, "qcom,msm-id in device tree is (%d) not a multiple of (%d)\n", |
| 200 | len_plat_id, min_plat_id_len); |
Dima Zavin | c46f838 | 2013-05-03 12:23:06 -0700 | [diff] [blame] | 201 | return false; |
| 202 | } |
Dima Zavin | c46f838 | 2013-05-03 12:23:06 -0700 | [diff] [blame] | 203 | |
Channagoud Kadabi | a4dbe33 | 2013-09-05 17:44:11 -0700 | [diff] [blame] | 204 | /* |
| 205 | * If DTB version is '1' look for <x y z> pair in the DTB |
| 206 | * x: platform_id |
| 207 | * y: variant_id |
| 208 | * z: SOC rev |
| 209 | */ |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 210 | if (dtb_ver == DEV_TREE_VERSION_V1) { |
| 211 | cur_dt_entry = (struct dt_entry *) |
| 212 | malloc(sizeof(struct dt_entry)); |
Dima Zavin | c46f838 | 2013-05-03 12:23:06 -0700 | [diff] [blame] | 213 | |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 214 | if (!cur_dt_entry) { |
| 215 | dprintf(CRITICAL, "Out of memory\n"); |
| 216 | return false; |
| 217 | } |
| 218 | memset(cur_dt_entry, 0, sizeof(struct dt_entry)); |
| 219 | |
| 220 | while (len_plat_id) { |
| 221 | cur_dt_entry->platform_id = fdt32_to_cpu(((const struct dt_entry_v1 *)plat_prop)->platform_id); |
| 222 | cur_dt_entry->variant_id = fdt32_to_cpu(((const struct dt_entry_v1 *)plat_prop)->variant_id); |
| 223 | cur_dt_entry->soc_rev = fdt32_to_cpu(((const struct dt_entry_v1 *)plat_prop)->soc_rev); |
| 224 | cur_dt_entry->board_hw_subtype = |
| 225 | fdt32_to_cpu(((const struct dt_entry_v1 *)plat_prop)->variant_id) >> 0x18; |
| 226 | cur_dt_entry->pmic_rev[0] = board_pmic_target(0); |
| 227 | cur_dt_entry->pmic_rev[1] = board_pmic_target(1); |
| 228 | cur_dt_entry->pmic_rev[2] = board_pmic_target(2); |
| 229 | cur_dt_entry->pmic_rev[3] = board_pmic_target(3); |
| 230 | cur_dt_entry->offset = (uint32_t)dtb; |
| 231 | cur_dt_entry->size = dtb_size; |
Channagoud Kadabi | a4dbe33 | 2013-09-05 17:44:11 -0700 | [diff] [blame] | 232 | |
| 233 | dprintf(SPEW, "Found an appended flattened device tree (%s - %u %u 0x%x)\n", |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 234 | *model ? model : "unknown", |
| 235 | cur_dt_entry->platform_id, cur_dt_entry->variant_id, cur_dt_entry->soc_rev); |
Channagoud Kadabi | a4dbe33 | 2013-09-05 17:44:11 -0700 | [diff] [blame] | 236 | |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 237 | if (platform_dt_absolute_match(cur_dt_entry, dtb_list)) { |
| 238 | dprintf(SPEW, "Device tree exact match the board: <%u %u 0x%x> != <%u %u 0x%x>\n", |
| 239 | cur_dt_entry->platform_id, |
| 240 | cur_dt_entry->variant_id, |
| 241 | cur_dt_entry->soc_rev, |
| 242 | board_platform_id(), |
| 243 | board_hardware_id(), |
| 244 | board_soc_version()); |
| 245 | |
| 246 | } else { |
Channagoud Kadabi | a4dbe33 | 2013-09-05 17:44:11 -0700 | [diff] [blame] | 247 | dprintf(SPEW, "Device tree's msm_id doesn't match the board: <%u %u 0x%x> != <%u %u 0x%x>\n", |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 248 | cur_dt_entry->platform_id, |
| 249 | cur_dt_entry->variant_id, |
| 250 | cur_dt_entry->soc_rev, |
| 251 | board_platform_id(), |
| 252 | board_hardware_id(), |
| 253 | board_soc_version()); |
Channagoud Kadabi | a4dbe33 | 2013-09-05 17:44:11 -0700 | [diff] [blame] | 254 | plat_prop += DT_ENTRY_V1_SIZE; |
| 255 | len_plat_id -= DT_ENTRY_V1_SIZE; |
| 256 | continue; |
| 257 | } |
Channagoud Kadabi | a4dbe33 | 2013-09-05 17:44:11 -0700 | [diff] [blame] | 258 | } |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 259 | free(cur_dt_entry); |
| 260 | |
Channagoud Kadabi | a4dbe33 | 2013-09-05 17:44:11 -0700 | [diff] [blame] | 261 | } |
| 262 | /* |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 263 | * If DTB Version is '3' then we have split DTB with board & msm data & pmic |
| 264 | * populated saperately in board-id & msm-id & pmic-id prop respectively. |
Channagoud Kadabi | a4dbe33 | 2013-09-05 17:44:11 -0700 | [diff] [blame] | 265 | * Extract the data & prepare a look up table |
| 266 | */ |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 267 | else if (dtb_ver == DEV_TREE_VERSION_V2 || dtb_ver == DEV_TREE_VERSION_V3) { |
Channagoud Kadabi | a4dbe33 | 2013-09-05 17:44:11 -0700 | [diff] [blame] | 268 | board_data_count = (len_board_id / BOARD_ID_SIZE); |
| 269 | msm_data_count = (len_plat_id / PLAT_ID_SIZE); |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 270 | /* If dtb version is v2.0, the pmic_data_count will be <= 0 */ |
| 271 | pmic_data_count = (len_pmic_id / PMIC_ID_SIZE); |
Channagoud Kadabi | a4dbe33 | 2013-09-05 17:44:11 -0700 | [diff] [blame] | 272 | |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 273 | /* If we are using dtb v3.0, then we have split board, msm & pmic data in the DTB |
| 274 | * If we are using dtb v2.0, then we have split board & msmdata in the DTB |
| 275 | */ |
Channagoud Kadabi | a4dbe33 | 2013-09-05 17:44:11 -0700 | [diff] [blame] | 276 | board_data = (struct board_id *) malloc(sizeof(struct board_id) * (len_board_id / BOARD_ID_SIZE)); |
| 277 | ASSERT(board_data); |
| 278 | platform_data = (struct plat_id *) malloc(sizeof(struct plat_id) * (len_plat_id / PLAT_ID_SIZE)); |
| 279 | ASSERT(platform_data); |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 280 | if (dtb_ver == DEV_TREE_VERSION_V3) { |
| 281 | pmic_data = (struct pmic_id *) malloc(sizeof(struct pmic_id) * (len_pmic_id / PMIC_ID_SIZE)); |
| 282 | ASSERT(pmic_data); |
| 283 | } |
Channagoud Kadabi | a4dbe33 | 2013-09-05 17:44:11 -0700 | [diff] [blame] | 284 | i = 0; |
| 285 | |
| 286 | /* Extract board data from DTB */ |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 287 | for(i = 0 ; i < board_data_count; i++) { |
Channagoud Kadabi | a4dbe33 | 2013-09-05 17:44:11 -0700 | [diff] [blame] | 288 | board_data[i].variant_id = fdt32_to_cpu(((struct board_id *)board_prop)->variant_id); |
| 289 | board_data[i].platform_subtype = fdt32_to_cpu(((struct board_id *)board_prop)->platform_subtype); |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 290 | /* For V2/V3 version of DTBs we have platform version field as part |
| 291 | * of variant ID, in such case the subtype will be mentioned as 0x0 |
| 292 | * As the qcom, board-id = <0xSSPMPmPH, 0x0> |
| 293 | * SS -- Subtype |
| 294 | * PM -- Platform major version |
| 295 | * Pm -- Platform minor version |
| 296 | * PH -- Platform hardware CDP/MTP |
| 297 | * In such case to make it compatible with LK algorithm move the subtype |
| 298 | * from variant_id to subtype field |
| 299 | */ |
| 300 | if (board_data[i].platform_subtype == 0) |
| 301 | board_data[i].platform_subtype = |
| 302 | fdt32_to_cpu(((struct board_id *)board_prop)->variant_id) >> 0x18; |
| 303 | |
Channagoud Kadabi | a4dbe33 | 2013-09-05 17:44:11 -0700 | [diff] [blame] | 304 | len_board_id -= sizeof(struct board_id); |
| 305 | board_prop += sizeof(struct board_id); |
| 306 | } |
| 307 | |
| 308 | /* Extract platform data from DTB */ |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 309 | for(i = 0 ; i < msm_data_count; i++) { |
Channagoud Kadabi | a4dbe33 | 2013-09-05 17:44:11 -0700 | [diff] [blame] | 310 | platform_data[i].platform_id = fdt32_to_cpu(((struct plat_id *)plat_prop)->platform_id); |
| 311 | platform_data[i].soc_rev = fdt32_to_cpu(((struct plat_id *)plat_prop)->soc_rev); |
| 312 | len_plat_id -= sizeof(struct plat_id); |
| 313 | plat_prop += sizeof(struct plat_id); |
| 314 | } |
| 315 | |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 316 | if (dtb_ver == DEV_TREE_VERSION_V3 && pmic_prop) { |
| 317 | /* Extract pmic data from DTB */ |
| 318 | for(i = 0 ; i < pmic_data_count; i++) { |
| 319 | pmic_data[i].pmic_version[0]= fdt32_to_cpu(((struct pmic_id *)pmic_prop)->pmic_version[0]); |
| 320 | pmic_data[i].pmic_version[1]= fdt32_to_cpu(((struct pmic_id *)pmic_prop)->pmic_version[1]); |
| 321 | pmic_data[i].pmic_version[2]= fdt32_to_cpu(((struct pmic_id *)pmic_prop)->pmic_version[2]); |
| 322 | pmic_data[i].pmic_version[3]= fdt32_to_cpu(((struct pmic_id *)pmic_prop)->pmic_version[3]); |
| 323 | len_pmic_id -= sizeof(struct pmic_id); |
| 324 | pmic_prop += sizeof(struct pmic_id); |
| 325 | } |
Channagoud Kadabi | a4dbe33 | 2013-09-05 17:44:11 -0700 | [diff] [blame] | 326 | |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 327 | /* We need to merge board & platform data into dt entry structure */ |
| 328 | num_entries = msm_data_count * board_data_count * pmic_data_count; |
| 329 | } else { |
| 330 | /* We need to merge board & platform data into dt entry structure */ |
| 331 | num_entries = msm_data_count * board_data_count; |
| 332 | } |
vijay kumar | 89d36d8 | 2014-06-30 19:32:18 +0530 | [diff] [blame] | 333 | |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 334 | if ((((uint64_t)msm_data_count * (uint64_t)board_data_count * (uint64_t)pmic_data_count) != |
| 335 | msm_data_count * board_data_count * pmic_data_count) || |
| 336 | (((uint64_t)msm_data_count * (uint64_t)board_data_count) != msm_data_count * board_data_count)) { |
| 337 | |
| 338 | free(board_data); |
| 339 | free(platform_data); |
| 340 | if (pmic_data) |
| 341 | free(pmic_data); |
| 342 | if (model) |
| 343 | free(model); |
| 344 | return false; |
| 345 | } |
| 346 | |
| 347 | dt_entry_array = (struct dt_entry*) malloc(sizeof(struct dt_entry) * num_entries); |
| 348 | ASSERT(dt_entry_array); |
| 349 | |
| 350 | /* If we have '<X>; <Y>; <Z>' as platform data & '<A>; <B>; <C>' as board data. |
| 351 | * Then dt entry should look like |
| 352 | * <X ,A >;<X, B>;<X, C>; |
| 353 | * <Y ,A >;<Y, B>;<Y, C>; |
| 354 | * <Z ,A >;<Z, B>;<Z, C>; |
| 355 | */ |
| 356 | i = 0; |
| 357 | k = 0; |
| 358 | n = 0; |
| 359 | for (i = 0; i < msm_data_count; i++) { |
| 360 | for (j = 0; j < board_data_count; j++) { |
| 361 | if (dtb_ver == DEV_TREE_VERSION_V3 && pmic_prop) { |
| 362 | for (n = 0; n < pmic_data_count; n++) { |
| 363 | dt_entry_array[k].platform_id = platform_data[i].platform_id; |
| 364 | dt_entry_array[k].soc_rev = platform_data[i].soc_rev; |
| 365 | dt_entry_array[k].variant_id = board_data[j].variant_id; |
| 366 | dt_entry_array[k].board_hw_subtype = board_data[j].platform_subtype; |
| 367 | dt_entry_array[k].pmic_rev[0]= pmic_data[n].pmic_version[0]; |
| 368 | dt_entry_array[k].pmic_rev[1]= pmic_data[n].pmic_version[1]; |
| 369 | dt_entry_array[k].pmic_rev[2]= pmic_data[n].pmic_version[2]; |
| 370 | dt_entry_array[k].pmic_rev[3]= pmic_data[n].pmic_version[3]; |
| 371 | dt_entry_array[k].offset = (uint32_t)dtb; |
| 372 | dt_entry_array[k].size = dtb_size; |
| 373 | k++; |
| 374 | } |
| 375 | |
| 376 | } else { |
| 377 | dt_entry_array[k].platform_id = platform_data[i].platform_id; |
| 378 | dt_entry_array[k].soc_rev = platform_data[i].soc_rev; |
| 379 | dt_entry_array[k].variant_id = board_data[j].variant_id; |
| 380 | dt_entry_array[k].board_hw_subtype = board_data[j].platform_subtype; |
| 381 | dt_entry_array[k].pmic_rev[0]= board_pmic_target(0); |
| 382 | dt_entry_array[k].pmic_rev[1]= board_pmic_target(1); |
| 383 | dt_entry_array[k].pmic_rev[2]= board_pmic_target(2); |
| 384 | dt_entry_array[k].pmic_rev[3]= board_pmic_target(3); |
| 385 | dt_entry_array[k].offset = (uint32_t)dtb; |
| 386 | dt_entry_array[k].size = dtb_size; |
vijay kumar | 89d36d8 | 2014-06-30 19:32:18 +0530 | [diff] [blame] | 387 | k++; |
| 388 | } |
Channagoud Kadabi | a4dbe33 | 2013-09-05 17:44:11 -0700 | [diff] [blame] | 389 | } |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 390 | } |
Channagoud Kadabi | a4dbe33 | 2013-09-05 17:44:11 -0700 | [diff] [blame] | 391 | |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 392 | for (i=0 ;i < num_entries; i++) { |
| 393 | dprintf(SPEW, "Found an appended flattened device tree (%s - %u %u %u 0x%x)\n", |
| 394 | *model ? model : "unknown", |
| 395 | dt_entry_array[i].platform_id, dt_entry_array[i].variant_id, dt_entry_array[i].board_hw_subtype, dt_entry_array[i].soc_rev); |
vijay kumar | 89d36d8 | 2014-06-30 19:32:18 +0530 | [diff] [blame] | 396 | |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 397 | if (platform_dt_absolute_match(&(dt_entry_array[i]), dtb_list)) { |
| 398 | dprintf(SPEW, "Device tree exact match the board: <%u %u %u 0x%x> == <%u %u %u 0x%x>\n", |
| 399 | dt_entry_array[i].platform_id, |
| 400 | dt_entry_array[i].variant_id, |
| 401 | dt_entry_array[i].soc_rev, |
| 402 | dt_entry_array[i].board_hw_subtype, |
| 403 | board_platform_id(), |
| 404 | board_hardware_id(), |
| 405 | board_hardware_subtype(), |
| 406 | board_soc_version()); |
vijay kumar | 89d36d8 | 2014-06-30 19:32:18 +0530 | [diff] [blame] | 407 | |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 408 | } else { |
| 409 | dprintf(SPEW, "Device tree's msm_id doesn't match the board: <%u %u %u 0x%x> != <%u %u %u 0x%x>\n", |
| 410 | dt_entry_array[i].platform_id, |
| 411 | dt_entry_array[i].variant_id, |
| 412 | dt_entry_array[i].soc_rev, |
| 413 | dt_entry_array[i].board_hw_subtype, |
| 414 | board_platform_id(), |
| 415 | board_hardware_id(), |
| 416 | board_hardware_subtype(), |
| 417 | board_soc_version()); |
Channagoud Kadabi | a4dbe33 | 2013-09-05 17:44:11 -0700 | [diff] [blame] | 418 | } |
| 419 | } |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 420 | |
| 421 | free(board_data); |
| 422 | free(platform_data); |
| 423 | if (pmic_data) |
| 424 | free(pmic_data); |
| 425 | free(dt_entry_array); |
Dima Zavin | c46f838 | 2013-05-03 12:23:06 -0700 | [diff] [blame] | 426 | } |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 427 | if (model) |
vijay kumar | 89d36d8 | 2014-06-30 19:32:18 +0530 | [diff] [blame] | 428 | free(model); |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 429 | return true; |
Dima Zavin | c46f838 | 2013-05-03 12:23:06 -0700 | [diff] [blame] | 430 | } |
| 431 | |
Channagoud Kadabi | 11682e9 | 2013-02-28 11:21:46 -0800 | [diff] [blame] | 432 | /* |
Dima Zavin | 77e41f3 | 2013-03-06 16:10:43 -0800 | [diff] [blame] | 433 | * Will relocate the DTB to the tags addr if the device tree is found and return |
| 434 | * its address |
| 435 | * |
| 436 | * Arguments: kernel - Start address of the kernel loaded in RAM |
| 437 | * tags - Start address of the tags loaded in RAM |
Channagoud Kadabi | 704cd56 | 2013-04-25 15:19:59 -0700 | [diff] [blame] | 438 | * kernel_size - Size of the kernel in bytes |
| 439 | * |
Channagoud Kadabi | 11682e9 | 2013-02-28 11:21:46 -0800 | [diff] [blame] | 440 | * Return Value: DTB address : If appended device tree is found |
Dima Zavin | 77e41f3 | 2013-03-06 16:10:43 -0800 | [diff] [blame] | 441 | * 'NULL' : Otherwise |
Channagoud Kadabi | 11682e9 | 2013-02-28 11:21:46 -0800 | [diff] [blame] | 442 | */ |
Matthew Qin | bb7923d | 2015-02-09 10:56:09 +0800 | [diff] [blame] | 443 | void *dev_tree_appended(void *kernel, uint32_t kernel_size, uint32_t dtb_offset, void *tags) |
Channagoud Kadabi | 11682e9 | 2013-02-28 11:21:46 -0800 | [diff] [blame] | 444 | { |
Parth Dixit | 97e47bb | 2016-03-07 17:20:44 +0530 | [diff] [blame] | 445 | uintptr_t kernel_end = (uintptr_t)kernel + kernel_size; |
Channagoud Kadabi | 11682e9 | 2013-02-28 11:21:46 -0800 | [diff] [blame] | 446 | uint32_t app_dtb_offset = 0; |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 447 | void *dtb = NULL; |
Shashank Mittal | c0f1028 | 2013-07-15 14:53:31 -0700 | [diff] [blame] | 448 | void *bestmatch_tag = NULL; |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 449 | struct dt_entry *best_match_dt_entry = NULL; |
Shashank Mittal | c0f1028 | 2013-07-15 14:53:31 -0700 | [diff] [blame] | 450 | uint32_t bestmatch_tag_size; |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 451 | struct dt_entry_node *dt_entry_queue = NULL; |
| 452 | struct dt_entry_node *dt_node_tmp1 = NULL; |
| 453 | struct dt_entry_node *dt_node_tmp2 = NULL; |
| 454 | |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 455 | /* Initialize the dtb entry node*/ |
| 456 | dt_entry_queue = (struct dt_entry_node *) |
| 457 | malloc(sizeof(struct dt_entry_node)); |
| 458 | |
| 459 | if (!dt_entry_queue) { |
| 460 | dprintf(CRITICAL, "Out of memory\n"); |
| 461 | return NULL; |
| 462 | } |
| 463 | list_initialize(&dt_entry_queue->node); |
| 464 | |
Matthew Qin | bb7923d | 2015-02-09 10:56:09 +0800 | [diff] [blame] | 465 | if (dtb_offset) |
| 466 | app_dtb_offset = dtb_offset; |
| 467 | else |
| 468 | memcpy((void*) &app_dtb_offset, (void*) (kernel + DTB_OFFSET), sizeof(uint32_t)); |
Channagoud Kadabi | 11682e9 | 2013-02-28 11:21:46 -0800 | [diff] [blame] | 469 | |
vijay kumar | e2a5ea8 | 2014-06-25 12:24:14 +0530 | [diff] [blame] | 470 | if (((uintptr_t)kernel + (uintptr_t)app_dtb_offset) < (uintptr_t)kernel) { |
| 471 | return NULL; |
| 472 | } |
Parth Dixit | 97e47bb | 2016-03-07 17:20:44 +0530 | [diff] [blame] | 473 | dtb = (void *)((uintptr_t)kernel + app_dtb_offset); |
| 474 | |
vijay kumar | e2a5ea8 | 2014-06-25 12:24:14 +0530 | [diff] [blame] | 475 | while (((uintptr_t)dtb + sizeof(struct fdt_header)) < (uintptr_t)kernel_end) { |
Dima Zavin | c46f838 | 2013-05-03 12:23:06 -0700 | [diff] [blame] | 476 | struct fdt_header dtb_hdr; |
| 477 | uint32_t dtb_size; |
Dima Zavin | 77e41f3 | 2013-03-06 16:10:43 -0800 | [diff] [blame] | 478 | |
Dima Zavin | c46f838 | 2013-05-03 12:23:06 -0700 | [diff] [blame] | 479 | /* the DTB could be unaligned, so extract the header, |
| 480 | * and operate on it separately */ |
| 481 | memcpy(&dtb_hdr, dtb, sizeof(struct fdt_header)); |
| 482 | if (fdt_check_header((const void *)&dtb_hdr) != 0 || |
Vijay Kumar Pendoti | 0f249e3 | 2016-03-18 18:17:01 +0530 | [diff] [blame^] | 483 | fdt_check_header_ext((const void *)&dtb_hdr) != 0 || |
vijay kumar | e2a5ea8 | 2014-06-25 12:24:14 +0530 | [diff] [blame] | 484 | ((uintptr_t)dtb + (uintptr_t)fdt_totalsize((const void *)&dtb_hdr) < (uintptr_t)dtb) || |
| 485 | ((uintptr_t)dtb + (uintptr_t)fdt_totalsize((const void *)&dtb_hdr) > (uintptr_t)kernel_end)) |
Dima Zavin | c46f838 | 2013-05-03 12:23:06 -0700 | [diff] [blame] | 486 | break; |
| 487 | dtb_size = fdt_totalsize(&dtb_hdr); |
| 488 | |
vijay kumar | 4f4405f | 2014-08-08 11:49:53 +0530 | [diff] [blame] | 489 | if (check_aboot_addr_range_overlap((uint32_t)tags, dtb_size)) { |
vijay kumar | b05eed2 | 2014-06-24 16:30:18 +0530 | [diff] [blame] | 490 | dprintf(CRITICAL, "Tags addresses overlap with aboot addresses.\n"); |
| 491 | return NULL; |
| 492 | } |
| 493 | |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 494 | dev_tree_compatible(dtb, dtb_size, dt_entry_queue); |
Dima Zavin | c46f838 | 2013-05-03 12:23:06 -0700 | [diff] [blame] | 495 | |
| 496 | /* goto the next device tree if any */ |
| 497 | dtb += dtb_size; |
Channagoud Kadabi | 11682e9 | 2013-02-28 11:21:46 -0800 | [diff] [blame] | 498 | } |
Dima Zavin | c46f838 | 2013-05-03 12:23:06 -0700 | [diff] [blame] | 499 | |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 500 | best_match_dt_entry = platform_dt_match_best(dt_entry_queue); |
| 501 | if (best_match_dt_entry){ |
| 502 | bestmatch_tag = (void *)best_match_dt_entry->offset; |
| 503 | bestmatch_tag_size = best_match_dt_entry->size; |
| 504 | dprintf(INFO, "Best match DTB tags %u/%08x/0x%08x/%x/%x/%x/%x/%x/%x/%x\n", |
| 505 | best_match_dt_entry->platform_id, best_match_dt_entry->variant_id, |
| 506 | best_match_dt_entry->board_hw_subtype, best_match_dt_entry->soc_rev, |
| 507 | best_match_dt_entry->pmic_rev[0], best_match_dt_entry->pmic_rev[1], |
| 508 | best_match_dt_entry->pmic_rev[2], best_match_dt_entry->pmic_rev[3], |
| 509 | best_match_dt_entry->offset, best_match_dt_entry->size); |
| 510 | dprintf(INFO, "Using pmic info 0x%0x/0x%x/0x%x/0x%0x for device 0x%0x/0x%x/0x%x/0x%0x\n", |
| 511 | best_match_dt_entry->pmic_rev[0], best_match_dt_entry->pmic_rev[1], |
| 512 | best_match_dt_entry->pmic_rev[2], best_match_dt_entry->pmic_rev[3], |
| 513 | board_pmic_target(0), board_pmic_target(1), |
| 514 | board_pmic_target(2), board_pmic_target(3)); |
| 515 | } |
| 516 | /* free queue's memory */ |
| 517 | list_for_every_entry(&dt_entry_queue->node, dt_node_tmp1, dt_node, node) { |
Veera Sundaram Sankaran | 0018151 | 2014-12-09 11:23:39 -0800 | [diff] [blame] | 518 | dt_node_tmp2 = (struct dt_entry_node *) dt_node_tmp1->node.prev; |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 519 | dt_entry_list_delete(dt_node_tmp1); |
| 520 | dt_node_tmp1 = dt_node_tmp2; |
| 521 | } |
| 522 | |
Shashank Mittal | c0f1028 | 2013-07-15 14:53:31 -0700 | [diff] [blame] | 523 | if(bestmatch_tag) { |
Shashank Mittal | c0f1028 | 2013-07-15 14:53:31 -0700 | [diff] [blame] | 524 | memcpy(tags, bestmatch_tag, bestmatch_tag_size); |
| 525 | /* clear out the old DTB magic so kernel doesn't find it */ |
| 526 | *((uint32_t *)(kernel + app_dtb_offset)) = 0; |
| 527 | return tags; |
| 528 | } |
| 529 | |
Dima Zavin | c46f838 | 2013-05-03 12:23:06 -0700 | [diff] [blame] | 530 | 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] | 531 | |
David Ng | 59c4a78 | 2015-05-14 15:51:44 -0700 | [diff] [blame] | 532 | dprintf(INFO, "Device info 0x%08x/%08x/0x%08x/%u, pmic 0x%0x/0x%x/0x%x/0x%0x\n", |
| 533 | board_platform_id(), board_soc_version(), |
| 534 | board_target_id(), board_hardware_subtype(), |
| 535 | board_pmic_target(0), board_pmic_target(1), |
| 536 | board_pmic_target(2), board_pmic_target(3)); |
Dima Zavin | 77e41f3 | 2013-03-06 16:10:43 -0800 | [diff] [blame] | 537 | return NULL; |
Channagoud Kadabi | 11682e9 | 2013-02-28 11:21:46 -0800 | [diff] [blame] | 538 | } |
| 539 | |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 540 | /* Returns 0 if the device tree is valid. */ |
Deepa Dinamani | 8725295 | 2013-09-09 13:58:27 -0700 | [diff] [blame] | 541 | int dev_tree_validate(struct dt_table *table, unsigned int page_size, uint32_t *dt_hdr_size) |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 542 | { |
| 543 | int dt_entry_size; |
Channagoud Kadabi | d87c277 | 2014-06-20 15:41:55 -0700 | [diff] [blame] | 544 | uint64_t hdr_size; |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 545 | |
| 546 | /* Validate the device tree table header */ |
| 547 | if(table->magic != DEV_TREE_MAGIC) { |
| 548 | dprintf(CRITICAL, "ERROR: Bad magic in device tree table \n"); |
| 549 | return -1; |
| 550 | } |
| 551 | |
| 552 | if (table->version == DEV_TREE_VERSION_V1) { |
| 553 | dt_entry_size = sizeof(struct dt_entry_v1); |
| 554 | } else if (table->version == DEV_TREE_VERSION_V2) { |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 555 | dt_entry_size = sizeof(struct dt_entry_v2); |
| 556 | } else if (table->version == DEV_TREE_VERSION_V3) { |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 557 | dt_entry_size = sizeof(struct dt_entry); |
| 558 | } else { |
| 559 | dprintf(CRITICAL, "ERROR: Unsupported version (%d) in DT table \n", |
| 560 | table->version); |
| 561 | return -1; |
| 562 | } |
| 563 | |
Channagoud Kadabi | d87c277 | 2014-06-20 15:41:55 -0700 | [diff] [blame] | 564 | hdr_size = (uint64_t)table->num_entries * dt_entry_size + DEV_TREE_HEADER_SIZE; |
| 565 | |
Deepa Dinamani | 8725295 | 2013-09-09 13:58:27 -0700 | [diff] [blame] | 566 | /* Roundup to page_size. */ |
| 567 | hdr_size = ROUNDUP(hdr_size, page_size); |
| 568 | |
Channagoud Kadabi | d87c277 | 2014-06-20 15:41:55 -0700 | [diff] [blame] | 569 | if (hdr_size > UINT_MAX) |
| 570 | return -1; |
| 571 | else |
| 572 | *dt_hdr_size = hdr_size & UINT_MAX; |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 573 | |
| 574 | return 0; |
| 575 | } |
| 576 | |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 577 | static int platform_dt_absolute_match(struct dt_entry *cur_dt_entry, struct dt_entry_node *dt_list) |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 578 | { |
Lijuan Gao | f8e9572 | 2014-12-23 03:03:12 -0500 | [diff] [blame] | 579 | uint32_t cur_dt_hlos_ddr; |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 580 | uint32_t cur_dt_hw_platform; |
| 581 | uint32_t cur_dt_hw_subtype; |
| 582 | uint32_t cur_dt_msm_id; |
| 583 | dt_node *dt_node_tmp = NULL; |
Channagoud Kadabi | 571193a | 2014-02-05 13:58:49 -0800 | [diff] [blame] | 584 | |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 585 | /* Platform-id |
| 586 | * bit no |31 24|23 16|15 0| |
| 587 | * |reserved|foundry-id|msm-id| |
| 588 | */ |
| 589 | cur_dt_msm_id = (cur_dt_entry->platform_id & 0x0000ffff); |
| 590 | cur_dt_hw_platform = (cur_dt_entry->variant_id & 0x000000ff); |
Lijuan Gao | 0621b86 | 2014-09-02 10:02:52 +0800 | [diff] [blame] | 591 | cur_dt_hw_subtype = (cur_dt_entry->board_hw_subtype & 0xff); |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 592 | |
Lijuan Gao | f8e9572 | 2014-12-23 03:03:12 -0500 | [diff] [blame] | 593 | /* Determine the bits 10:8 to check the DT with the DDR Size */ |
| 594 | cur_dt_hlos_ddr = (cur_dt_entry->board_hw_subtype & 0x700); |
Channagoud Kadabi | 571193a | 2014-02-05 13:58:49 -0800 | [diff] [blame] | 595 | |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 596 | /* 1. must match the msm_id, platform_hw_id, platform_subtype and DDR size |
| 597 | * soc, board major/minor, pmic major/minor must less than board info |
| 598 | * 2. find the matched DTB then return 1 |
| 599 | * 3. otherwise return 0 |
Maria Yu | 2e2d2c2 | 2013-07-03 19:20:33 +0800 | [diff] [blame] | 600 | */ |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 601 | if((cur_dt_msm_id == (board_platform_id() & 0x0000ffff)) && |
| 602 | (cur_dt_hw_platform == board_hardware_id()) && |
| 603 | (cur_dt_hw_subtype == board_hardware_subtype()) && |
Lijuan Gao | f8e9572 | 2014-12-23 03:03:12 -0500 | [diff] [blame] | 604 | (cur_dt_hlos_ddr == (target_get_hlos_subtype() & 0x700)) && |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 605 | (cur_dt_entry->soc_rev <= board_soc_version()) && |
| 606 | ((cur_dt_entry->variant_id & 0x00ffff00) <= (board_target_id() & 0x00ffff00)) && |
| 607 | ((cur_dt_entry->pmic_rev[0] & 0x00ffff00) <= (board_pmic_target(0) & 0x00ffff00)) && |
| 608 | ((cur_dt_entry->pmic_rev[1] & 0x00ffff00) <= (board_pmic_target(1) & 0x00ffff00)) && |
| 609 | ((cur_dt_entry->pmic_rev[2] & 0x00ffff00) <= (board_pmic_target(2) & 0x00ffff00)) && |
| 610 | ((cur_dt_entry->pmic_rev[3] & 0x00ffff00) <= (board_pmic_target(3) & 0x00ffff00))) { |
Maria Yu | 2e2d2c2 | 2013-07-03 19:20:33 +0800 | [diff] [blame] | 611 | |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 612 | dt_node_tmp = dt_entry_list_init(); |
| 613 | memcpy((char*)dt_node_tmp->dt_entry_m,(char*)cur_dt_entry, sizeof(struct dt_entry)); |
| 614 | |
| 615 | dprintf(SPEW, "Add DTB entry %u/%08x/0x%08x/%x/%x/%x/%x/%x/%x/%x\n", |
| 616 | dt_node_tmp->dt_entry_m->platform_id, dt_node_tmp->dt_entry_m->variant_id, |
| 617 | dt_node_tmp->dt_entry_m->board_hw_subtype, dt_node_tmp->dt_entry_m->soc_rev, |
| 618 | dt_node_tmp->dt_entry_m->pmic_rev[0], dt_node_tmp->dt_entry_m->pmic_rev[1], |
| 619 | dt_node_tmp->dt_entry_m->pmic_rev[2], dt_node_tmp->dt_entry_m->pmic_rev[3], |
| 620 | dt_node_tmp->dt_entry_m->offset, dt_node_tmp->dt_entry_m->size); |
| 621 | |
| 622 | insert_dt_entry_in_queue(dt_list, dt_node_tmp); |
| 623 | return 1; |
| 624 | } |
| 625 | return 0; |
| 626 | } |
| 627 | |
| 628 | static int platform_dt_absolute_compat_match(struct dt_entry_node *dt_list, uint32_t dtb_info) { |
| 629 | struct dt_entry_node *dt_node_tmp1 = NULL; |
| 630 | struct dt_entry_node *dt_node_tmp2 = NULL; |
| 631 | uint32_t current_info = 0; |
| 632 | uint32_t board_info = 0; |
| 633 | uint32_t best_info = 0; |
| 634 | uint32_t current_pmic_model[4] = {0, 0, 0, 0}; |
| 635 | uint32_t board_pmic_model[4] = {0, 0, 0, 0}; |
| 636 | uint32_t best_pmic_model[4] = {0, 0, 0, 0}; |
| 637 | uint32_t delete_current_dt = 0; |
| 638 | uint32_t i; |
| 639 | |
| 640 | /* start to select the exact entry |
| 641 | * default to exact match 0, if find current DTB entry info is the same as board info, |
| 642 | * then exact match board info. |
| 643 | */ |
| 644 | list_for_every_entry(&dt_list->node, dt_node_tmp1, dt_node, node) { |
| 645 | if (!dt_node_tmp1){ |
| 646 | dprintf(SPEW, "Current node is the end\n"); |
| 647 | break; |
| 648 | } |
| 649 | switch(dtb_info) { |
| 650 | case DTB_FOUNDRY: |
| 651 | current_info = ((dt_node_tmp1->dt_entry_m->platform_id) & 0x00ff0000); |
Channagoud Kadabi | 4cffc27 | 2014-10-29 11:23:26 -0700 | [diff] [blame] | 652 | board_info = board_foundry_id() << 16; |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 653 | break; |
| 654 | case DTB_PMIC_MODEL: |
| 655 | for (i = 0; i < 4; i++) { |
| 656 | current_pmic_model[i] = (dt_node_tmp1->dt_entry_m->pmic_rev[i] & 0xff); |
| 657 | board_pmic_model[i] = (board_pmic_target(i) & 0xff); |
| 658 | } |
| 659 | break; |
Lijuan Gao | f8e9572 | 2014-12-23 03:03:12 -0500 | [diff] [blame] | 660 | case DTB_PANEL_TYPE: |
| 661 | current_info = ((dt_node_tmp1->dt_entry_m->board_hw_subtype) & 0x1800); |
| 662 | board_info = (target_get_hlos_subtype() & 0x1800); |
| 663 | break; |
| 664 | case DTB_BOOT_DEVICE: |
| 665 | current_info = ((dt_node_tmp1->dt_entry_m->board_hw_subtype) & 0xf0000); |
| 666 | board_info = (target_get_hlos_subtype() & 0xf0000); |
| 667 | break; |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 668 | default: |
| 669 | dprintf(CRITICAL, "ERROR: Unsupported version (%d) in dt node check \n", |
| 670 | dtb_info); |
Maria Yu | ca51ee2 | 2013-06-27 21:45:24 +0800 | [diff] [blame] | 671 | return 0; |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 672 | } |
| 673 | |
| 674 | if (dtb_info == DTB_PMIC_MODEL) { |
| 675 | if ((current_pmic_model[0] == board_pmic_model[0]) && |
| 676 | (current_pmic_model[1] == board_pmic_model[1]) && |
| 677 | (current_pmic_model[2] == board_pmic_model[2]) && |
| 678 | (current_pmic_model[3] == board_pmic_model[3])) { |
| 679 | |
| 680 | for (i = 0; i < 4; i++) { |
| 681 | best_pmic_model[i] = current_pmic_model[i]; |
| 682 | } |
| 683 | break; |
| 684 | } |
| 685 | } else { |
| 686 | if (current_info == board_info) { |
| 687 | best_info = current_info; |
| 688 | break; |
| 689 | } |
| 690 | } |
| 691 | } |
| 692 | |
| 693 | list_for_every_entry(&dt_list->node, dt_node_tmp1, dt_node, node) { |
| 694 | if (!dt_node_tmp1){ |
| 695 | dprintf(SPEW, "Current node is the end\n"); |
| 696 | break; |
| 697 | } |
| 698 | switch(dtb_info) { |
| 699 | case DTB_FOUNDRY: |
| 700 | current_info = ((dt_node_tmp1->dt_entry_m->platform_id) & 0x00ff0000); |
| 701 | break; |
| 702 | case DTB_PMIC_MODEL: |
| 703 | for (i = 0; i < 4; i++) { |
| 704 | current_pmic_model[i] = (dt_node_tmp1->dt_entry_m->pmic_rev[i] & 0xff); |
| 705 | } |
| 706 | break; |
Lijuan Gao | f8e9572 | 2014-12-23 03:03:12 -0500 | [diff] [blame] | 707 | case DTB_PANEL_TYPE: |
| 708 | current_info = ((dt_node_tmp1->dt_entry_m->board_hw_subtype) & 0x1800); |
| 709 | break; |
| 710 | case DTB_BOOT_DEVICE: |
| 711 | current_info = ((dt_node_tmp1->dt_entry_m->board_hw_subtype) & 0xf0000); |
| 712 | break; |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 713 | default: |
| 714 | dprintf(CRITICAL, "ERROR: Unsupported version (%d) in dt node check \n", |
| 715 | dtb_info); |
| 716 | return 0; |
| 717 | } |
| 718 | |
| 719 | if (dtb_info == DTB_PMIC_MODEL) { |
| 720 | if ((current_pmic_model[0] != best_pmic_model[0]) || |
| 721 | (current_pmic_model[1] != best_pmic_model[1]) || |
| 722 | (current_pmic_model[2] != best_pmic_model[2]) || |
| 723 | (current_pmic_model[3] != best_pmic_model[3])) { |
| 724 | |
| 725 | delete_current_dt = 1; |
| 726 | } |
| 727 | } else { |
| 728 | if (current_info != best_info) { |
| 729 | delete_current_dt = 1; |
| 730 | } |
| 731 | } |
| 732 | |
| 733 | if (delete_current_dt) { |
| 734 | dprintf(SPEW, "Delete don't fit DTB entry %u/%08x/0x%08x/%x/%x/%x/%x/%x/%x/%x\n", |
| 735 | dt_node_tmp1->dt_entry_m->platform_id, dt_node_tmp1->dt_entry_m->variant_id, |
| 736 | dt_node_tmp1->dt_entry_m->board_hw_subtype, dt_node_tmp1->dt_entry_m->soc_rev, |
| 737 | dt_node_tmp1->dt_entry_m->pmic_rev[0], dt_node_tmp1->dt_entry_m->pmic_rev[1], |
| 738 | dt_node_tmp1->dt_entry_m->pmic_rev[2], dt_node_tmp1->dt_entry_m->pmic_rev[3], |
| 739 | dt_node_tmp1->dt_entry_m->offset, dt_node_tmp1->dt_entry_m->size); |
| 740 | |
Veera Sundaram Sankaran | 0018151 | 2014-12-09 11:23:39 -0800 | [diff] [blame] | 741 | dt_node_tmp2 = (struct dt_entry_node *) dt_node_tmp1->node.prev; |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 742 | dt_entry_list_delete(dt_node_tmp1); |
| 743 | dt_node_tmp1 = dt_node_tmp2; |
| 744 | delete_current_dt = 0; |
Maria Yu | ca51ee2 | 2013-06-27 21:45:24 +0800 | [diff] [blame] | 745 | } |
| 746 | } |
Maria Yu | ca51ee2 | 2013-06-27 21:45:24 +0800 | [diff] [blame] | 747 | |
Maria Yu | 2e2d2c2 | 2013-07-03 19:20:33 +0800 | [diff] [blame] | 748 | return 1; |
Maria Yu | ca51ee2 | 2013-06-27 21:45:24 +0800 | [diff] [blame] | 749 | } |
| 750 | |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 751 | static int update_dtb_entry_node(struct dt_entry_node *dt_list, uint32_t dtb_info) { |
| 752 | struct dt_entry_node *dt_node_tmp1 = NULL; |
| 753 | struct dt_entry_node *dt_node_tmp2 = NULL; |
| 754 | uint32_t current_info = 0; |
| 755 | uint32_t board_info = 0; |
| 756 | uint32_t best_info = 0; |
| 757 | |
| 758 | /* start to select the best entry*/ |
| 759 | list_for_every_entry(&dt_list->node, dt_node_tmp1, dt_node, node) { |
| 760 | if (!dt_node_tmp1){ |
| 761 | dprintf(SPEW, "Current node is the end\n"); |
| 762 | break; |
| 763 | } |
| 764 | switch(dtb_info) { |
| 765 | case DTB_SOC: |
| 766 | current_info = dt_node_tmp1->dt_entry_m->soc_rev; |
| 767 | board_info = board_soc_version(); |
| 768 | break; |
| 769 | case DTB_MAJOR_MINOR: |
| 770 | current_info = ((dt_node_tmp1->dt_entry_m->variant_id) & 0x00ffff00); |
| 771 | board_info = (board_target_id() & 0x00ffff00); |
| 772 | break; |
| 773 | case DTB_PMIC0: |
| 774 | current_info = ((dt_node_tmp1->dt_entry_m->pmic_rev[0]) & 0x00ffff00); |
| 775 | board_info = (board_pmic_target(0) & 0x00ffff00); |
| 776 | break; |
| 777 | case DTB_PMIC1: |
| 778 | current_info = ((dt_node_tmp1->dt_entry_m->pmic_rev[1]) & 0x00ffff00); |
| 779 | board_info = (board_pmic_target(1) & 0x00ffff00); |
| 780 | break; |
| 781 | case DTB_PMIC2: |
| 782 | current_info = ((dt_node_tmp1->dt_entry_m->pmic_rev[2]) & 0x00ffff00); |
| 783 | board_info = (board_pmic_target(2) & 0x00ffff00); |
| 784 | break; |
| 785 | case DTB_PMIC3: |
| 786 | current_info = ((dt_node_tmp1->dt_entry_m->pmic_rev[3]) & 0x00ffff00); |
| 787 | board_info = (board_pmic_target(3) & 0x00ffff00); |
| 788 | break; |
| 789 | default: |
| 790 | dprintf(CRITICAL, "ERROR: Unsupported version (%d) in dt node check \n", |
| 791 | dtb_info); |
| 792 | return 0; |
| 793 | } |
| 794 | |
| 795 | if (current_info == board_info) { |
| 796 | best_info = current_info; |
| 797 | break; |
| 798 | } |
| 799 | if ((current_info < board_info) && (current_info > best_info)) { |
| 800 | best_info = current_info; |
| 801 | } |
| 802 | if (current_info < best_info) { |
| 803 | dprintf(SPEW, "Delete don't fit DTB entry %u/%08x/0x%08x/%x/%x/%x/%x/%x/%x/%x\n", |
| 804 | dt_node_tmp1->dt_entry_m->platform_id, dt_node_tmp1->dt_entry_m->variant_id, |
| 805 | dt_node_tmp1->dt_entry_m->board_hw_subtype, dt_node_tmp1->dt_entry_m->soc_rev, |
| 806 | dt_node_tmp1->dt_entry_m->pmic_rev[0], dt_node_tmp1->dt_entry_m->pmic_rev[1], |
| 807 | dt_node_tmp1->dt_entry_m->pmic_rev[2], dt_node_tmp1->dt_entry_m->pmic_rev[3], |
| 808 | dt_node_tmp1->dt_entry_m->offset, dt_node_tmp1->dt_entry_m->size); |
| 809 | |
Veera Sundaram Sankaran | 0018151 | 2014-12-09 11:23:39 -0800 | [diff] [blame] | 810 | dt_node_tmp2 = (struct dt_entry_node *) dt_node_tmp1->node.prev; |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 811 | dt_entry_list_delete(dt_node_tmp1); |
| 812 | dt_node_tmp1 = dt_node_tmp2; |
| 813 | } |
| 814 | } |
| 815 | |
| 816 | list_for_every_entry(&dt_list->node, dt_node_tmp1, dt_node, node) { |
| 817 | if (!dt_node_tmp1){ |
| 818 | dprintf(SPEW, "Current node is the end\n"); |
| 819 | break; |
| 820 | } |
| 821 | switch(dtb_info) { |
| 822 | case DTB_SOC: |
| 823 | current_info = dt_node_tmp1->dt_entry_m->soc_rev; |
| 824 | break; |
| 825 | case DTB_MAJOR_MINOR: |
| 826 | current_info = ((dt_node_tmp1->dt_entry_m->variant_id) & 0x00ffff00); |
| 827 | break; |
| 828 | case DTB_PMIC0: |
| 829 | current_info = ((dt_node_tmp1->dt_entry_m->pmic_rev[0]) & 0x00ffff00); |
| 830 | break; |
| 831 | case DTB_PMIC1: |
| 832 | current_info = ((dt_node_tmp1->dt_entry_m->pmic_rev[1]) & 0x00ffff00); |
| 833 | break; |
| 834 | case DTB_PMIC2: |
| 835 | current_info = ((dt_node_tmp1->dt_entry_m->pmic_rev[2]) & 0x00ffff00); |
| 836 | break; |
| 837 | case DTB_PMIC3: |
| 838 | current_info = ((dt_node_tmp1->dt_entry_m->pmic_rev[3]) & 0x00ffff00); |
| 839 | break; |
| 840 | default: |
| 841 | dprintf(CRITICAL, "ERROR: Unsupported version (%d) in dt node check \n", |
| 842 | dtb_info); |
| 843 | return 0; |
| 844 | } |
| 845 | |
| 846 | if (current_info != best_info) { |
| 847 | dprintf(SPEW, "Delete don't fit DTB entry %u/%08x/0x%08x/%x/%x/%x/%x/%x/%x/%x\n", |
| 848 | dt_node_tmp1->dt_entry_m->platform_id, dt_node_tmp1->dt_entry_m->variant_id, |
| 849 | dt_node_tmp1->dt_entry_m->board_hw_subtype, dt_node_tmp1->dt_entry_m->soc_rev, |
| 850 | dt_node_tmp1->dt_entry_m->pmic_rev[0], dt_node_tmp1->dt_entry_m->pmic_rev[1], |
| 851 | dt_node_tmp1->dt_entry_m->pmic_rev[2], dt_node_tmp1->dt_entry_m->pmic_rev[3], |
| 852 | dt_node_tmp1->dt_entry_m->offset, dt_node_tmp1->dt_entry_m->size); |
| 853 | |
Veera Sundaram Sankaran | 0018151 | 2014-12-09 11:23:39 -0800 | [diff] [blame] | 854 | dt_node_tmp2 = (struct dt_entry_node *) dt_node_tmp1->node.prev; |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 855 | dt_entry_list_delete(dt_node_tmp1); |
| 856 | dt_node_tmp1 = dt_node_tmp2; |
| 857 | } |
| 858 | } |
| 859 | return 1; |
| 860 | } |
| 861 | |
| 862 | static struct dt_entry *platform_dt_match_best(struct dt_entry_node *dt_list) |
| 863 | { |
| 864 | struct dt_entry_node *dt_node_tmp1 = NULL; |
| 865 | |
| 866 | /* check Foundry id |
| 867 | * the foundry id must exact match board founddry id, this is compatibility check, |
| 868 | * if couldn't find the exact match from DTB, will exact match 0x0. |
| 869 | */ |
| 870 | if (!platform_dt_absolute_compat_match(dt_list, DTB_FOUNDRY)) |
| 871 | return NULL; |
| 872 | |
| 873 | /* check PMIC model |
| 874 | * the PMIC model must exact match board PMIC model, this is compatibility check, |
| 875 | * if couldn't find the exact match from DTB, will exact match 0x0. |
| 876 | */ |
| 877 | if (!platform_dt_absolute_compat_match(dt_list, DTB_PMIC_MODEL)) |
| 878 | return NULL; |
| 879 | |
Lijuan Gao | f8e9572 | 2014-12-23 03:03:12 -0500 | [diff] [blame] | 880 | /* check panel type |
| 881 | * the panel type must exact match board panel type, this is compatibility check, |
| 882 | * if couldn't find the exact match from DTB, will exact match 0x0. |
| 883 | */ |
| 884 | if (!platform_dt_absolute_compat_match(dt_list, DTB_PANEL_TYPE)) |
| 885 | return NULL; |
| 886 | |
| 887 | /* check boot device subtype |
| 888 | * the boot device subtype must exact match board boot device subtype, this is compatibility check, |
| 889 | * if couldn't find the exact match from DTB, will exact match 0x0. |
| 890 | */ |
| 891 | if (!platform_dt_absolute_compat_match(dt_list, DTB_BOOT_DEVICE)) |
| 892 | return NULL; |
| 893 | |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 894 | /* check soc version |
| 895 | * the suitable soc version must less than or equal to board soc version |
| 896 | */ |
| 897 | if (!update_dtb_entry_node(dt_list, DTB_SOC)) |
| 898 | return NULL; |
| 899 | |
| 900 | /*check major and minor version |
| 901 | * the suitable major&minor version must less than or equal to board major&minor version |
| 902 | */ |
| 903 | if (!update_dtb_entry_node(dt_list, DTB_MAJOR_MINOR)) |
| 904 | return NULL; |
| 905 | |
| 906 | /*check pmic info |
| 907 | * the suitable pmic major&minor info must less than or equal to board pmic major&minor version |
| 908 | */ |
| 909 | if (!update_dtb_entry_node(dt_list, DTB_PMIC0)) |
| 910 | return NULL; |
| 911 | if (!update_dtb_entry_node(dt_list, DTB_PMIC1)) |
| 912 | return NULL; |
| 913 | if (!update_dtb_entry_node(dt_list, DTB_PMIC2)) |
| 914 | return NULL; |
| 915 | if (!update_dtb_entry_node(dt_list, DTB_PMIC3)) |
| 916 | return NULL; |
| 917 | |
| 918 | list_for_every_entry(&dt_list->node, dt_node_tmp1, dt_node, node) { |
| 919 | if (!dt_node_tmp1) { |
| 920 | dprintf(CRITICAL, "ERROR: Couldn't find the suitable DTB!\n"); |
| 921 | return NULL; |
| 922 | } |
| 923 | if (dt_node_tmp1->dt_entry_m) |
| 924 | return dt_node_tmp1->dt_entry_m; |
| 925 | } |
| 926 | |
| 927 | return NULL; |
| 928 | } |
| 929 | |
| 930 | /* Function to obtain the index information for the correct device tree |
| 931 | * based on the platform data. |
| 932 | * If a matching device tree is found, the information is returned in the |
| 933 | * "dt_entry_info" out parameter and a function value of 0 is returned, otherwise |
| 934 | * a non-zero function value is returned. |
| 935 | */ |
| 936 | int dev_tree_get_entry_info(struct dt_table *table, struct dt_entry *dt_entry_info) |
Maria Yu | ca51ee2 | 2013-06-27 21:45:24 +0800 | [diff] [blame] | 937 | { |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 938 | uint32_t i; |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 939 | unsigned char *table_ptr = NULL; |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 940 | struct dt_entry dt_entry_buf_1; |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 941 | struct dt_entry *cur_dt_entry = NULL; |
| 942 | struct dt_entry *best_match_dt_entry = NULL; |
| 943 | struct dt_entry_v1 *dt_entry_v1 = NULL; |
| 944 | struct dt_entry_v2 *dt_entry_v2 = NULL; |
| 945 | struct dt_entry_node *dt_entry_queue = NULL; |
| 946 | struct dt_entry_node *dt_node_tmp1 = NULL; |
| 947 | struct dt_entry_node *dt_node_tmp2 = NULL; |
Maria Yu | 2e2d2c2 | 2013-07-03 19:20:33 +0800 | [diff] [blame] | 948 | uint32_t found = 0; |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 949 | |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 950 | if (!dt_entry_info) { |
| 951 | dprintf(CRITICAL, "ERROR: Bad parameter passed to %s \n", |
| 952 | __func__); |
| 953 | return -1; |
| 954 | } |
| 955 | |
| 956 | table_ptr = (unsigned char *)table + DEV_TREE_HEADER_SIZE; |
| 957 | cur_dt_entry = &dt_entry_buf_1; |
| 958 | best_match_dt_entry = NULL; |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 959 | dt_entry_queue = (struct dt_entry_node *) |
| 960 | malloc(sizeof(struct dt_entry_node)); |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 961 | |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 962 | if (!dt_entry_queue) { |
| 963 | dprintf(CRITICAL, "Out of memory\n"); |
| 964 | return -1; |
| 965 | } |
| 966 | |
| 967 | list_initialize(&dt_entry_queue->node); |
| 968 | dprintf(INFO, "DTB Total entry: %d, DTB version: %d\n", table->num_entries, table->version); |
Maria Yu | 2e2d2c2 | 2013-07-03 19:20:33 +0800 | [diff] [blame] | 969 | for(i = 0; found == 0 && i < table->num_entries; i++) |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 970 | { |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 971 | memset(cur_dt_entry, 0, sizeof(struct dt_entry)); |
| 972 | switch(table->version) { |
| 973 | case DEV_TREE_VERSION_V1: |
| 974 | dt_entry_v1 = (struct dt_entry_v1 *)table_ptr; |
| 975 | cur_dt_entry->platform_id = dt_entry_v1->platform_id; |
| 976 | cur_dt_entry->variant_id = dt_entry_v1->variant_id; |
| 977 | cur_dt_entry->soc_rev = dt_entry_v1->soc_rev; |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 978 | cur_dt_entry->board_hw_subtype = (dt_entry_v1->variant_id >> 0x18); |
| 979 | cur_dt_entry->pmic_rev[0] = board_pmic_target(0); |
| 980 | cur_dt_entry->pmic_rev[1] = board_pmic_target(1); |
| 981 | cur_dt_entry->pmic_rev[2] = board_pmic_target(2); |
| 982 | cur_dt_entry->pmic_rev[3] = board_pmic_target(3); |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 983 | cur_dt_entry->offset = dt_entry_v1->offset; |
| 984 | cur_dt_entry->size = dt_entry_v1->size; |
| 985 | table_ptr += sizeof(struct dt_entry_v1); |
| 986 | break; |
| 987 | case DEV_TREE_VERSION_V2: |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 988 | dt_entry_v2 = (struct dt_entry_v2*)table_ptr; |
| 989 | cur_dt_entry->platform_id = dt_entry_v2->platform_id; |
| 990 | cur_dt_entry->variant_id = dt_entry_v2->variant_id; |
| 991 | cur_dt_entry->soc_rev = dt_entry_v2->soc_rev; |
| 992 | /* For V2 version of DTBs we have platform version field as part |
| 993 | * of variant ID, in such case the subtype will be mentioned as 0x0 |
| 994 | * As the qcom, board-id = <0xSSPMPmPH, 0x0> |
| 995 | * SS -- Subtype |
| 996 | * PM -- Platform major version |
| 997 | * Pm -- Platform minor version |
| 998 | * PH -- Platform hardware CDP/MTP |
| 999 | * In such case to make it compatible with LK algorithm move the subtype |
| 1000 | * from variant_id to subtype field |
| 1001 | */ |
| 1002 | if (dt_entry_v2->board_hw_subtype == 0) |
| 1003 | cur_dt_entry->board_hw_subtype = (cur_dt_entry->variant_id >> 0x18); |
| 1004 | else |
| 1005 | cur_dt_entry->board_hw_subtype = dt_entry_v2->board_hw_subtype; |
| 1006 | cur_dt_entry->pmic_rev[0] = board_pmic_target(0); |
| 1007 | cur_dt_entry->pmic_rev[1] = board_pmic_target(1); |
| 1008 | cur_dt_entry->pmic_rev[2] = board_pmic_target(2); |
| 1009 | cur_dt_entry->pmic_rev[3] = board_pmic_target(3); |
| 1010 | cur_dt_entry->offset = dt_entry_v2->offset; |
| 1011 | cur_dt_entry->size = dt_entry_v2->size; |
| 1012 | table_ptr += sizeof(struct dt_entry_v2); |
| 1013 | break; |
| 1014 | case DEV_TREE_VERSION_V3: |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 1015 | memcpy(cur_dt_entry, (struct dt_entry *)table_ptr, |
| 1016 | sizeof(struct dt_entry)); |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 1017 | /* For V3 version of DTBs we have platform version field as part |
| 1018 | * of variant ID, in such case the subtype will be mentioned as 0x0 |
| 1019 | * As the qcom, board-id = <0xSSPMPmPH, 0x0> |
| 1020 | * SS -- Subtype |
| 1021 | * PM -- Platform major version |
| 1022 | * Pm -- Platform minor version |
| 1023 | * PH -- Platform hardware CDP/MTP |
| 1024 | * In such case to make it compatible with LK algorithm move the subtype |
| 1025 | * from variant_id to subtype field |
| 1026 | */ |
| 1027 | if (cur_dt_entry->board_hw_subtype == 0) |
| 1028 | cur_dt_entry->board_hw_subtype = (cur_dt_entry->variant_id >> 0x18); |
| 1029 | |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 1030 | table_ptr += sizeof(struct dt_entry); |
| 1031 | break; |
| 1032 | default: |
| 1033 | dprintf(CRITICAL, "ERROR: Unsupported version (%d) in DT table \n", |
| 1034 | table->version); |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 1035 | free(dt_entry_queue); |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 1036 | return -1; |
| 1037 | } |
| 1038 | |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 1039 | /* DTBs must match the platform_id, platform_hw_id, platform_subtype and DDR size. |
| 1040 | * The satisfactory DTBs are stored in dt_entry_queue |
| 1041 | */ |
| 1042 | platform_dt_absolute_match(cur_dt_entry, dt_entry_queue); |
Channagoud Kadabi | afd62bf | 2013-01-08 20:32:52 -0800 | [diff] [blame] | 1043 | |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 1044 | } |
| 1045 | best_match_dt_entry = platform_dt_match_best(dt_entry_queue); |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 1046 | if (best_match_dt_entry) { |
| 1047 | *dt_entry_info = *best_match_dt_entry; |
Maria Yu | 2e2d2c2 | 2013-07-03 19:20:33 +0800 | [diff] [blame] | 1048 | found = 1; |
| 1049 | } |
| 1050 | |
| 1051 | if (found != 0) { |
Sundarajan Srinivasan | 763c0db | 2014-05-20 17:08:36 -0700 | [diff] [blame] | 1052 | dprintf(INFO, "Using DTB entry 0x%08x/%08x/0x%08x/%u for device 0x%08x/%08x/0x%08x/%u\n", |
David Ng | 618293a | 2013-06-25 12:29:03 -0700 | [diff] [blame] | 1053 | dt_entry_info->platform_id, dt_entry_info->soc_rev, |
| 1054 | dt_entry_info->variant_id, dt_entry_info->board_hw_subtype, |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 1055 | board_platform_id(), board_soc_version(), |
| 1056 | board_target_id(), board_hardware_subtype()); |
| 1057 | if (dt_entry_info->pmic_rev[0] == 0 && dt_entry_info->pmic_rev[0] == 0 && |
| 1058 | dt_entry_info->pmic_rev[0] == 0 && dt_entry_info->pmic_rev[0] == 0) { |
| 1059 | dprintf(SPEW, "No maintain pmic info in DTB, device pmic info is 0x%0x/0x%x/0x%x/0x%0x\n", |
| 1060 | board_pmic_target(0), board_pmic_target(1), |
| 1061 | board_pmic_target(2), board_pmic_target(3)); |
| 1062 | } else { |
| 1063 | dprintf(INFO, "Using pmic info 0x%0x/0x%x/0x%x/0x%0x for device 0x%0x/0x%x/0x%x/0x%0x\n", |
| 1064 | dt_entry_info->pmic_rev[0], dt_entry_info->pmic_rev[1], |
| 1065 | dt_entry_info->pmic_rev[2], dt_entry_info->pmic_rev[3], |
| 1066 | board_pmic_target(0), board_pmic_target(1), |
| 1067 | board_pmic_target(2), board_pmic_target(3)); |
| 1068 | } |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 1069 | return 0; |
Channagoud Kadabi | afd62bf | 2013-01-08 20:32:52 -0800 | [diff] [blame] | 1070 | } |
| 1071 | |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 1072 | dprintf(CRITICAL, "ERROR: Unable to find suitable device tree for device (%u/0x%08x/0x%08x/%u)\n", |
| 1073 | board_platform_id(), board_soc_version(), |
| 1074 | board_target_id(), board_hardware_subtype()); |
| 1075 | |
| 1076 | list_for_every_entry(&dt_entry_queue->node, dt_node_tmp1, dt_node, node) { |
| 1077 | /* free node memory */ |
Veera Sundaram Sankaran | 0018151 | 2014-12-09 11:23:39 -0800 | [diff] [blame] | 1078 | dt_node_tmp2 = (struct dt_entry_node *) dt_node_tmp1->node.prev; |
Lijuan Gao | 9f15286 | 2014-08-18 13:45:24 +0800 | [diff] [blame] | 1079 | dt_entry_list_delete(dt_node_tmp1); |
| 1080 | dt_node_tmp1 = dt_node_tmp2; |
| 1081 | } |
| 1082 | free(dt_entry_queue); |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 1083 | return -1; |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 1084 | } |
| 1085 | |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 1086 | /* Function to add the first RAM partition info to the device tree. |
| 1087 | * Note: The function replaces the reg property in the "/memory" node |
| 1088 | * with the addr and size provided. |
| 1089 | */ |
| 1090 | int dev_tree_add_first_mem_info(uint32_t *fdt, uint32_t offset, uint32_t addr, uint32_t size) |
| 1091 | { |
| 1092 | int ret; |
| 1093 | |
| 1094 | ret = fdt_setprop_u32(fdt, offset, "reg", addr); |
| 1095 | |
| 1096 | if (ret) |
| 1097 | { |
| 1098 | dprintf(CRITICAL, "Failed to add the memory information addr: %d\n", |
| 1099 | ret); |
| 1100 | } |
| 1101 | |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 1102 | ret = fdt_appendprop_u32(fdt, offset, "reg", size); |
| 1103 | |
| 1104 | if (ret) |
| 1105 | { |
| 1106 | dprintf(CRITICAL, "Failed to add the memory information size: %d\n", |
| 1107 | ret); |
| 1108 | } |
| 1109 | |
| 1110 | return ret; |
| 1111 | } |
| 1112 | |
Sundarajan Srinivasan | 44de434 | 2013-07-08 14:47:13 -0700 | [diff] [blame] | 1113 | static int dev_tree_query_memory_cell_sizes(void *fdt, struct dt_mem_node_info *mem_node, uint32_t mem_node_offset) |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 1114 | { |
Sundarajan Srinivasan | 44de434 | 2013-07-08 14:47:13 -0700 | [diff] [blame] | 1115 | int len; |
| 1116 | uint32_t *valp; |
| 1117 | int ret; |
| 1118 | uint32_t offset; |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 1119 | |
Sundarajan Srinivasan | 44de434 | 2013-07-08 14:47:13 -0700 | [diff] [blame] | 1120 | mem_node->offset = mem_node_offset; |
| 1121 | |
| 1122 | /* Get offset of the root node */ |
| 1123 | ret = fdt_path_offset(fdt, "/"); |
| 1124 | if (ret < 0) |
| 1125 | { |
| 1126 | dprintf(CRITICAL, "Could not find memory node.\n"); |
| 1127 | return ret; |
| 1128 | } |
| 1129 | |
| 1130 | offset = ret; |
| 1131 | |
| 1132 | /* Find the #address-cells size. */ |
| 1133 | valp = (uint32_t*)fdt_getprop(fdt, offset, "#address-cells", &len); |
Lijuan Gao | ae0927b | 2014-07-18 17:16:16 +0800 | [diff] [blame] | 1134 | if (len <= 0 || !valp) |
Sundarajan Srinivasan | 44de434 | 2013-07-08 14:47:13 -0700 | [diff] [blame] | 1135 | { |
| 1136 | if (len == -FDT_ERR_NOTFOUND) |
| 1137 | { |
| 1138 | /* Property not found. |
| 1139 | * Assume standard sizes. |
| 1140 | */ |
| 1141 | mem_node->addr_cell_size = 2; |
| 1142 | dprintf(CRITICAL, "Using default #addr_cell_size: %u\n", mem_node->addr_cell_size); |
| 1143 | } |
| 1144 | else |
| 1145 | { |
| 1146 | dprintf(CRITICAL, "Error finding the #address-cells property\n"); |
| 1147 | return len; |
| 1148 | } |
| 1149 | } |
| 1150 | else |
| 1151 | mem_node->addr_cell_size = fdt32_to_cpu(*valp); |
| 1152 | |
| 1153 | /* Find the #size-cells size. */ |
| 1154 | valp = (uint32_t*)fdt_getprop(fdt, offset, "#size-cells", &len); |
Lijuan Gao | ae0927b | 2014-07-18 17:16:16 +0800 | [diff] [blame] | 1155 | if (len <= 0 || !valp) |
Sundarajan Srinivasan | 44de434 | 2013-07-08 14:47:13 -0700 | [diff] [blame] | 1156 | { |
| 1157 | if (len == -FDT_ERR_NOTFOUND) |
| 1158 | { |
| 1159 | /* Property not found. |
| 1160 | * Assume standard sizes. |
| 1161 | */ |
| 1162 | mem_node->size_cell_size = 1; |
| 1163 | dprintf(CRITICAL, "Using default #size_cell_size: %u\n", mem_node->size_cell_size); |
| 1164 | } |
| 1165 | else |
| 1166 | { |
| 1167 | dprintf(CRITICAL, "Error finding the #size-cells property\n"); |
| 1168 | return len; |
| 1169 | } |
| 1170 | } |
| 1171 | else |
| 1172 | mem_node->size_cell_size = fdt32_to_cpu(*valp); |
| 1173 | |
| 1174 | return 0; |
| 1175 | } |
| 1176 | |
| 1177 | static void dev_tree_update_memory_node(uint32_t offset) |
| 1178 | { |
| 1179 | mem_node.offset = offset; |
| 1180 | mem_node.addr_cell_size = 1; |
| 1181 | mem_node.size_cell_size = 1; |
| 1182 | } |
| 1183 | |
| 1184 | /* Function to add the subsequent RAM partition info to the device tree. */ |
| 1185 | int dev_tree_add_mem_info(void *fdt, uint32_t offset, uint64_t addr, uint64_t size) |
| 1186 | { |
| 1187 | int ret = 0; |
| 1188 | |
| 1189 | if(smem_get_ram_ptable_version() >= 1) |
| 1190 | { |
| 1191 | ret = dev_tree_query_memory_cell_sizes(fdt, &mem_node, offset); |
| 1192 | if (ret < 0) |
| 1193 | { |
| 1194 | dprintf(CRITICAL, "Could not find #address-cells and #size-cells properties: ret %d\n", ret); |
| 1195 | return ret; |
| 1196 | } |
| 1197 | |
| 1198 | } |
| 1199 | else |
| 1200 | { |
| 1201 | dev_tree_update_memory_node(offset); |
| 1202 | } |
| 1203 | |
| 1204 | if (!(mem_node.mem_info_cnt)) |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 1205 | { |
| 1206 | /* Replace any other reg prop in the memory node. */ |
Sundarajan Srinivasan | 44de434 | 2013-07-08 14:47:13 -0700 | [diff] [blame] | 1207 | |
| 1208 | /* cell_size is the number of 32 bit words used to represent an address/length in the device tree. |
| 1209 | * memory node in DT can be either 32-bit(cell-size = 1) or 64-bit(cell-size = 2).So when updating |
| 1210 | * the memory node in the device tree, we write one word or two words based on cell_size = 1 or 2. |
| 1211 | */ |
| 1212 | |
| 1213 | if(mem_node.addr_cell_size == 2) |
| 1214 | { |
| 1215 | ret = fdt_setprop_u32(fdt, mem_node.offset, "reg", addr >> 32); |
| 1216 | if(ret) |
| 1217 | { |
| 1218 | dprintf(CRITICAL, "ERROR: Could not set prop reg for memory node\n"); |
| 1219 | return ret; |
| 1220 | } |
| 1221 | |
| 1222 | ret = fdt_appendprop_u32(fdt, mem_node.offset, "reg", (uint32_t)addr); |
| 1223 | if(ret) |
| 1224 | { |
| 1225 | dprintf(CRITICAL, "ERROR: Could not append prop reg for memory node\n"); |
| 1226 | return ret; |
| 1227 | } |
| 1228 | } |
| 1229 | else |
| 1230 | { |
| 1231 | ret = fdt_setprop_u32(fdt, mem_node.offset, "reg", (uint32_t)addr); |
| 1232 | if(ret) |
| 1233 | { |
| 1234 | dprintf(CRITICAL, "ERROR: Could not set prop reg for memory node\n"); |
| 1235 | return ret; |
| 1236 | } |
| 1237 | } |
| 1238 | |
| 1239 | mem_node.mem_info_cnt = 1; |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 1240 | } |
| 1241 | else |
| 1242 | { |
| 1243 | /* Append the mem info to the reg prop for subsequent nodes. */ |
Sundarajan Srinivasan | 44de434 | 2013-07-08 14:47:13 -0700 | [diff] [blame] | 1244 | if(mem_node.addr_cell_size == 2) |
| 1245 | { |
| 1246 | ret = fdt_appendprop_u32(fdt, mem_node.offset, "reg", addr >> 32); |
| 1247 | if(ret) |
| 1248 | { |
| 1249 | dprintf(CRITICAL, "ERROR: Could not append prop reg for memory node\n"); |
| 1250 | return ret; |
| 1251 | } |
| 1252 | } |
| 1253 | |
| 1254 | ret = fdt_appendprop_u32(fdt, mem_node.offset, "reg", (uint32_t)addr); |
| 1255 | if(ret) |
| 1256 | { |
| 1257 | dprintf(CRITICAL, "ERROR: Could not append prop reg for memory node\n"); |
| 1258 | return ret; |
| 1259 | } |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 1260 | } |
| 1261 | |
Sundarajan Srinivasan | 44de434 | 2013-07-08 14:47:13 -0700 | [diff] [blame] | 1262 | if(mem_node.size_cell_size == 2) |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 1263 | { |
Sundarajan Srinivasan | 44de434 | 2013-07-08 14:47:13 -0700 | [diff] [blame] | 1264 | ret = fdt_appendprop_u32(fdt, mem_node.offset, "reg", size>>32); |
| 1265 | if(ret) |
| 1266 | { |
| 1267 | dprintf(CRITICAL, "ERROR: Could not append prop reg for memory node\n"); |
| 1268 | return ret; |
| 1269 | } |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 1270 | } |
| 1271 | |
Sundarajan Srinivasan | 44de434 | 2013-07-08 14:47:13 -0700 | [diff] [blame] | 1272 | ret = fdt_appendprop_u32(fdt, mem_node.offset, "reg", (uint32_t)size); |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 1273 | |
| 1274 | if (ret) |
| 1275 | { |
| 1276 | dprintf(CRITICAL, "Failed to add the memory information size: %d\n", |
| 1277 | ret); |
Sundarajan Srinivasan | 44de434 | 2013-07-08 14:47:13 -0700 | [diff] [blame] | 1278 | return ret; |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 1279 | } |
| 1280 | |
| 1281 | return ret; |
| 1282 | } |
| 1283 | |
| 1284 | /* Top level function that updates the device tree. */ |
| 1285 | int update_device_tree(void *fdt, const char *cmdline, |
| 1286 | void *ramdisk, uint32_t ramdisk_size) |
| 1287 | { |
| 1288 | int ret = 0; |
| 1289 | uint32_t offset; |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 1290 | |
| 1291 | /* Check the device tree header */ |
Vijay Kumar Pendoti | 0f249e3 | 2016-03-18 18:17:01 +0530 | [diff] [blame^] | 1292 | ret = fdt_check_header(fdt) || fdt_check_header_ext(fdt); |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 1293 | if (ret) |
| 1294 | { |
| 1295 | dprintf(CRITICAL, "Invalid device tree header \n"); |
| 1296 | return ret; |
| 1297 | } |
| 1298 | |
P.V. Phani Kumar | 9cd9510 | 2016-03-09 12:35:23 +0530 | [diff] [blame] | 1299 | if (check_aboot_addr_range_overlap((uint32_t)fdt, |
| 1300 | (fdt_totalsize(fdt) + DTB_PAD_SIZE))) { |
| 1301 | dprintf(CRITICAL, "Error: Fdt addresses overlap with aboot addresses.\n"); |
| 1302 | return ret; |
| 1303 | } |
| 1304 | |
Deepa Dinamani | 1c97073 | 2013-04-19 14:23:01 -0700 | [diff] [blame] | 1305 | /* Add padding to make space for new nodes and properties. */ |
| 1306 | ret = fdt_open_into(fdt, fdt, fdt_totalsize(fdt) + DTB_PAD_SIZE); |
| 1307 | if (ret!= 0) |
| 1308 | { |
| 1309 | dprintf(CRITICAL, "Failed to move/resize dtb buffer: %d\n", ret); |
| 1310 | return ret; |
| 1311 | } |
| 1312 | |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 1313 | /* Get offset of the memory node */ |
| 1314 | ret = fdt_path_offset(fdt, "/memory"); |
| 1315 | if (ret < 0) |
| 1316 | { |
| 1317 | dprintf(CRITICAL, "Could not find memory node.\n"); |
| 1318 | return ret; |
| 1319 | } |
| 1320 | |
| 1321 | offset = ret; |
| 1322 | |
| 1323 | ret = target_dev_tree_mem(fdt, offset); |
| 1324 | if(ret) |
| 1325 | { |
| 1326 | dprintf(CRITICAL, "ERROR: Cannot update memory node\n"); |
| 1327 | return ret; |
| 1328 | } |
| 1329 | |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 1330 | /* Get offset of the chosen node */ |
| 1331 | ret = fdt_path_offset(fdt, "/chosen"); |
| 1332 | if (ret < 0) |
| 1333 | { |
| 1334 | dprintf(CRITICAL, "Could not find chosen node.\n"); |
| 1335 | return ret; |
| 1336 | } |
| 1337 | |
| 1338 | offset = ret; |
Maria Yu | abde954 | 2014-07-07 14:49:34 +0800 | [diff] [blame] | 1339 | if (cmdline) |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 1340 | { |
Maria Yu | abde954 | 2014-07-07 14:49:34 +0800 | [diff] [blame] | 1341 | /* Adding the cmdline to the chosen node */ |
| 1342 | ret = fdt_appendprop_string(fdt, offset, (const char*)"bootargs", (const void*)cmdline); |
| 1343 | if (ret) |
| 1344 | { |
| 1345 | dprintf(CRITICAL, "ERROR: Cannot update chosen node [bootargs]\n"); |
| 1346 | return ret; |
| 1347 | } |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 1348 | } |
| 1349 | |
Joonwoo Park | a5b5f49 | 2014-02-13 18:24:48 -0800 | [diff] [blame] | 1350 | if (ramdisk_size) { |
| 1351 | /* Adding the initrd-start to the chosen node */ |
| 1352 | ret = fdt_setprop_u32(fdt, offset, "linux,initrd-start", |
| 1353 | (uint32_t)ramdisk); |
| 1354 | if (ret) |
| 1355 | { |
| 1356 | dprintf(CRITICAL, "ERROR: Cannot update chosen node [linux,initrd-start]\n"); |
| 1357 | return ret; |
| 1358 | } |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 1359 | |
Joonwoo Park | a5b5f49 | 2014-02-13 18:24:48 -0800 | [diff] [blame] | 1360 | /* Adding the initrd-end to the chosen node */ |
| 1361 | ret = fdt_setprop_u32(fdt, offset, "linux,initrd-end", |
| 1362 | ((uint32_t)ramdisk + ramdisk_size)); |
| 1363 | if (ret) |
| 1364 | { |
| 1365 | dprintf(CRITICAL, "ERROR: Cannot update chosen node [linux,initrd-end]\n"); |
| 1366 | return ret; |
| 1367 | } |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 1368 | } |
| 1369 | |
| 1370 | fdt_pack(fdt); |
| 1371 | |
Channagoud Kadabi | ffaea42 | 2014-12-05 15:45:41 -0800 | [diff] [blame] | 1372 | #if ENABLE_PARTIAL_GOODS_SUPPORT |
| 1373 | update_partial_goods_dtb_nodes(fdt); |
| 1374 | #endif |
| 1375 | |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 1376 | return ret; |
| 1377 | } |