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