forked from Mirrors/opensbi
fcb1dedb2d
Add a helper routine to insert a child node of the reserved memory node in the device tree that describes the protected memory region done by OpenSBI via PMP. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
26 lines
740 B
C
26 lines
740 B
C
// SPDX-License-Identifier: BSD-2-Clause
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/*
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* fdt_helper.h - Flat Device Tree manipulation helper routines
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* Implement helper routines on top of libfdt for OpenSBI usage
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*
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* Copyright (C) 2020 Bin Meng <bmeng.cn@gmail.com>
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*/
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#ifndef __FDT_HELPER_H__
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#define __FDT_HELPER_H__
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/**
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* Fix up the reserved memory node in the device tree
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*
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* This routine inserts a child node of the reserved memory node in the device
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* tree that describes the protected memory region done by OpenSBI via PMP.
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*
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* It is recommended that platform codes call this helper in their final_init()
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*
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* @param fdt: device tree blob
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* @return zero on success and -ve on failure
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*/
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int fdt_reserved_memory_fixup(void *fdt);
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#endif /* __FDT_HELPER_H__ */
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