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/*
* Copyright (c) 2015, 2017 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Dornierstr. 4
* 82178 Puchheim
* Germany
* <rtems@embedded-brains.de>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifndef LIBBSP_SHARED_FDT_H
#define LIBBSP_SHARED_FDT_H
#include <bsp.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/*
* BSPs that implement the FDT support functions must define
* BSP_FDT_IS_SUPPORTED.
*/
/**
* @brief Copies the specified source FDT to a dedicated global data area.
*
* The source FDT is usually provided by a bootloader and may be located in a
* memory area that is used by the program. The low-level initialization
* should copy the FDT for later use.
*
* The copy can be accessed by bsp_fdt_get().
*
* @param[in] src The source FDT.
*/
void bsp_fdt_copy(const void *src);
/**
* @brief Returns the FDT of the BSP.
*
* @return The FDT of the BSP.
*/
const void *bsp_fdt_get(void);
/**
* @brief Maps the interrupt number of the FDT to the interrupt vector used by
* the interrupt management.
*
* This function is used by the libbsd to implement the OFW_BUS_MAP_INTR bus
* method.
*
* @param[in] intr The FDT interrupt number cells.
* @param[in] icells The FDT interrupt cell count.
*
* @return The interrupt vector of the FDT interrupt number.
*/
uint32_t bsp_fdt_map_intr(const uint32_t *intr, size_t icells);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* LIBBSP_SHARED_FDT_H */
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