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/* Copyright (c) 2012-2014, 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>
#include <list.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_VERSION_V3 3
#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
#define PMIC_ID_SIZE 0x8
struct dt_entry_v2
{
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_entry
{
uint32_t platform_id;
uint32_t variant_id;
uint32_t board_hw_subtype;
uint32_t soc_rev;
uint32_t pmic_rev[4];
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;
};
struct pmic_id
{
uint32_t pmic_version[4];
};
struct dt_mem_node_info
{
uint32_t offset;
uint32_t mem_info_cnt;
uint32_t addr_cell_size;
uint32_t size_cell_size;
};
enum dt_entry_info
{
DTB_FOUNDRY = 0,
DTB_SOC,
DTB_MAJOR_MINOR,
DTB_PMIC0,
DTB_PMIC1,
DTB_PMIC2,
DTB_PMIC3,
DTB_PMIC_MODEL,
DTB_PANEL_TYPE,
DTB_BOOT_DEVICE,
};
enum dt_err_codes
{
DT_OP_SUCCESS,
DT_OP_FAILURE = -1,
};
typedef struct dt_entry_node {
struct list_node node;
struct dt_entry * dt_entry_m;
}dt_node;
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 *fdt, const char *, void *, unsigned);
int dev_tree_add_mem_info(void *fdt, uint32_t offset, uint64_t size, uint64_t addr);
void *dev_tree_appended(void *kernel, uint32_t kernel_size, void *tags);
#endif
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