Channagoud Kadabi | 11682e9 | 2013-02-28 11:21:46 -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 <debug.h> |
| 30 | |
| 31 | #ifndef __DEVICE_TREE__ |
| 32 | #define __DEVICE_TREE__ |
| 33 | |
| 34 | #define DEV_TREE_SUCCESS 0 |
| 35 | #define DEV_TREE_MAGIC 0x54444351 /* "QCDT" */ |
| 36 | #define DEV_TREE_MAGIC_LEN 4 |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 37 | #define DEV_TREE_VERSION_V1 1 |
| 38 | #define DEV_TREE_VERSION_V2 2 |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 39 | #define DEV_TREE_HEADER_SIZE 12 |
| 40 | |
Channagoud Kadabi | 11682e9 | 2013-02-28 11:21:46 -0800 | [diff] [blame] | 41 | #define DTB_MAGIC 0xedfe0dd0 |
| 42 | #define DTB_OFFSET 0x2C |
| 43 | |
Dima Zavin | 77e41f3 | 2013-03-06 16:10:43 -0800 | [diff] [blame] | 44 | #define DTB_PAD_SIZE 1024 |
| 45 | |
Channagoud Kadabi | f2c88dd | 2013-09-05 17:44:11 -0700 | [diff] [blame^] | 46 | /* |
| 47 | * For DTB V1: The DTB entries would be of the format |
| 48 | * qcom,msm-id = <msm8974, CDP, rev_1>; (3 * sizeof(uint32_t)) |
| 49 | * For DTB V2: The DTB entries would be of the format |
| 50 | * qcom,msm-id = <msm8974, rev_1>; (2 * sizeof(uint32_t)) |
| 51 | * qcom,board-id = <CDP, subtype_ID>; (2 * sizeof(uint32_t)) |
| 52 | * The macros below are defined based on these. |
| 53 | */ |
| 54 | #define DT_ENTRY_V1_SIZE 0xC |
| 55 | #define PLAT_ID_SIZE 0x8 |
| 56 | #define BOARD_ID_SIZE 0x8 |
| 57 | |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 58 | struct dt_entry |
| 59 | { |
| 60 | uint32_t platform_id; |
| 61 | uint32_t variant_id; |
Joel King | aa335dc | 2013-06-03 16:11:08 -0700 | [diff] [blame] | 62 | uint32_t board_hw_subtype; |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 63 | uint32_t soc_rev; |
| 64 | uint32_t offset; |
| 65 | uint32_t size; |
| 66 | }; |
| 67 | |
| 68 | struct dt_table |
| 69 | { |
| 70 | uint32_t magic; |
| 71 | uint32_t version; |
| 72 | uint32_t num_entries; |
| 73 | }; |
| 74 | |
Channagoud Kadabi | f2c88dd | 2013-09-05 17:44:11 -0700 | [diff] [blame^] | 75 | struct plat_id |
| 76 | { |
| 77 | uint32_t platform_id; |
| 78 | uint32_t soc_rev; |
| 79 | }; |
| 80 | |
| 81 | struct board_id |
| 82 | { |
| 83 | uint32_t variant_id; |
| 84 | uint32_t platform_subtype; |
| 85 | }; |
| 86 | |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 87 | enum dt_err_codes |
| 88 | { |
| 89 | DT_OP_SUCCESS, |
| 90 | DT_OP_FAILURE = -1, |
| 91 | }; |
| 92 | |
Deepa Dinamani | 8725295 | 2013-09-09 13:58:27 -0700 | [diff] [blame] | 93 | 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] | 94 | 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] | 95 | int update_device_tree(void *, const char *, void *, unsigned); |
| 96 | int dev_tree_add_mem_info(void *fdt, uint32_t offset, uint32_t size, uint32_t addr); |
Dima Zavin | e63e557 | 2013-05-03 12:23:06 -0700 | [diff] [blame] | 97 | void *dev_tree_appended(void *kernel, uint32_t kernel_size, void *tags); |
Deepa Dinamani | 28c0ffe | 2012-09-24 11:45:21 -0700 | [diff] [blame] | 98 | #endif |