60 lines
1.3 KiB
C
60 lines
1.3 KiB
C
/*
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* Copyright (c) 2013 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <common.h>
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#include <init.h>
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#include <of.h>
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#include <asm/barebox-arm.h>
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extern char __dtb_start[];
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static int of_arm_init(void)
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{
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struct device_node *root;
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void *fdt;
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/* See if we already have a dtb */
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root = of_get_root_node();
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if (root)
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return 0;
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/* See if we are provided a dtb in boarddata */
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fdt = barebox_arm_boot_dtb();
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if (fdt)
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pr_debug("using boarddata provided DTB\n");
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/* Next see if we have a builtin dtb */
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if (!fdt && IS_ENABLED(CONFIG_BUILTIN_DTB)) {
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fdt = __dtb_start;
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pr_debug("using internal DTB\n");
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}
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if (!fdt) {
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pr_debug("No DTB found\n");
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return 0;
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}
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root = of_unflatten_dtb(fdt);
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if (root) {
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of_set_root_node(root);
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if (IS_ENABLED(CONFIG_OFDEVICE))
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of_probe();
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}
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return 0;
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}
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core_initcall(of_arm_init);
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