8aa4366cb2
We support OFW API to replace fdt old API, and add IRQ, IO, Platform-Bus, CPUs ... OFW node contorl. To support work with Device Tree or ACPI in drivers that use IRQ, we make a programmable interrupt controller driver's model. Signed-off-by: GuEe-GUI <GuEe-GUI@github.com>
39 lines
641 B
C
39 lines
641 B
C
// SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
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/*
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* libfdt - Flat Device Tree manipulation
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* Copyright (C) 2012 David Gibson, IBM Corporation.
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*/
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#include "libfdt_env.h"
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#include <fdt.h>
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#include <libfdt.h>
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#include "libfdt_internal.h"
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int fdt_create_empty_tree(void *buf, int bufsize)
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{
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int err;
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err = fdt_create(buf, bufsize);
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if (err)
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return err;
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err = fdt_finish_reservemap(buf);
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if (err)
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return err;
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err = fdt_begin_node(buf, "");
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if (err)
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return err;
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err = fdt_end_node(buf);
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if (err)
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return err;
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err = fdt_finish(buf);
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if (err)
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return err;
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return fdt_open_into(buf, buf, bufsize);
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}
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