| /* Copyright (c) 2012-2013, The Linux Foundation. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * * Neither the name of The Linux Foundation nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include <debug.h> |
| |
| #ifndef __DEVICE_TREE__ |
| #define __DEVICE_TREE__ |
| |
| #define DEV_TREE_SUCCESS 0 |
| #define DEV_TREE_MAGIC 0x54444351 /* "QCDT" */ |
| #define DEV_TREE_MAGIC_LEN 4 |
| #define DEV_TREE_VERSION_V1 1 |
| #define DEV_TREE_VERSION_V2 2 |
| #define DEV_TREE_HEADER_SIZE 12 |
| |
| #define DTB_MAGIC 0xedfe0dd0 |
| #define DTB_OFFSET 0x2C |
| |
| #define DTB_PAD_SIZE 1024 |
| |
| /* |
| * For DTB V1: The DTB entries would be of the format |
| * qcom,msm-id = <msm8974, CDP, rev_1>; (3 * sizeof(uint32_t)) |
| * For DTB V2: The DTB entries would be of the format |
| * qcom,msm-id = <msm8974, rev_1>; (2 * sizeof(uint32_t)) |
| * qcom,board-id = <CDP, subtype_ID>; (2 * sizeof(uint32_t)) |
| * The macros below are defined based on these. |
| */ |
| #define DT_ENTRY_V1_SIZE 0xC |
| #define PLAT_ID_SIZE 0x8 |
| #define BOARD_ID_SIZE 0x8 |
| |
| struct dt_entry |
| { |
| uint32_t platform_id; |
| uint32_t variant_id; |
| uint32_t board_hw_subtype; |
| uint32_t soc_rev; |
| uint32_t offset; |
| uint32_t size; |
| }; |
| |
| struct dt_table |
| { |
| uint32_t magic; |
| uint32_t version; |
| uint32_t num_entries; |
| }; |
| |
| struct plat_id |
| { |
| uint32_t platform_id; |
| uint32_t soc_rev; |
| }; |
| |
| struct board_id |
| { |
| uint32_t variant_id; |
| uint32_t platform_subtype; |
| }; |
| |
| enum dt_err_codes |
| { |
| DT_OP_SUCCESS, |
| DT_OP_FAILURE = -1, |
| }; |
| |
| int dev_tree_validate(struct dt_table *table, unsigned int page_size, uint32_t *dt_hdr_size); |
| int dev_tree_get_entry_info(struct dt_table *table, struct dt_entry *dt_entry_info); |
| int update_device_tree(void *, const char *, void *, unsigned); |
| int dev_tree_add_mem_info(void *fdt, uint32_t offset, uint32_t size, uint32_t addr); |
| void *dev_tree_appended(void *kernel, uint32_t kernel_size, void *tags); |
| #endif |