lib/device_tree/include/lib/device_tree/libfdt_helpers.h

/*
 * Copyright (c) 2024 LK Trusty Authors. All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files
 * (the "Software"), to deal in the Software without restriction,
 * including without limitation the rights to use, copy, modify, merge,
 * publish, distribute, sublicense, and/or sell copies of the Software,
 * and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#pragma once

#include <libfdt.h>
#include <lk/types.h>

status_t fdt_helper_read_cells32(const fdt32_t* fdt_prop,
                                 int fdt_prop_len,
                                 int row_index,
                                 int before_cells,
                                 int cells,
                                 int after_cells,
                                 uint64_t* valp);

status_t fdt_helper_get_reg(const void* fdt,
                            int nodeoffset,
                            int reg_index,
                            paddr_t* addrp,
                            size_t* sizep);