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File indexing completed on 2025-05-11 08:23:42
0001 /* SPDX-License-Identifier: BSD-2-Clause */ 0002 0003 /* 0004 * Copyright (C) 2015, 2017 embedded brains GmbH & Co. KG 0005 * 0006 * Redistribution and use in source and binary forms, with or without 0007 * modification, are permitted provided that the following conditions 0008 * are met: 0009 * 1. Redistributions of source code must retain the above copyright 0010 * notice, this list of conditions and the following disclaimer. 0011 * 2. Redistributions in binary form must reproduce the above copyright 0012 * notice, this list of conditions and the following disclaimer in the 0013 * documentation and/or other materials provided with the distribution. 0014 * 0015 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 0016 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 0017 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 0018 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 0019 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 0020 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 0021 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 0022 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 0023 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 0024 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 0025 * POSSIBILITY OF SUCH DAMAGE. 0026 */ 0027 0028 #ifndef LIBBSP_SHARED_FDT_H 0029 #define LIBBSP_SHARED_FDT_H 0030 0031 #include <bsp.h> 0032 0033 #ifdef __cplusplus 0034 extern "C" { 0035 #endif /* __cplusplus */ 0036 0037 /* 0038 * BSPs that implement the FDT support functions must define 0039 * BSP_FDT_IS_SUPPORTED. 0040 */ 0041 0042 /** 0043 * @brief Copies the specified source FDT to a dedicated global data area. 0044 * 0045 * The source FDT is usually provided by a bootloader and may be located in a 0046 * memory area that is used by the program. The low-level initialization 0047 * should copy the FDT for later use. 0048 * 0049 * The copy can be accessed by bsp_fdt_get(). 0050 * 0051 * @param[in] src The source FDT. 0052 */ 0053 void bsp_fdt_copy(const void *src); 0054 0055 /** 0056 * @brief Returns the FDT of the BSP. 0057 * 0058 * @return The FDT of the BSP. 0059 */ 0060 const void *bsp_fdt_get(void); 0061 0062 /** 0063 * @brief Maps the interrupt number of the FDT to the interrupt vector used by 0064 * the interrupt management. 0065 * 0066 * This function is used by the libbsd to implement the OFW_BUS_MAP_INTR bus 0067 * method. 0068 * 0069 * @param[in] intr The FDT interrupt number cells. 0070 * @param[in] icells The FDT interrupt cell count. 0071 * 0072 * @return The interrupt vector of the FDT interrupt number. 0073 */ 0074 uint32_t bsp_fdt_map_intr(const uint32_t *intr, size_t icells); 0075 0076 #ifdef __cplusplus 0077 } 0078 #endif /* __cplusplus */ 0079 0080 #endif /* LIBBSP_SHARED_FDT_H */
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