mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-09-08 22:03:22 +09:00
38 lines
753 B
C
38 lines
753 B
C
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/*
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* Copyright (c) 2017 Google, Inc
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* Written by Simon Glass <sjg@chromium.org>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <dm.h>
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#include <dm/of_addr.h>
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#include <dm/read.h>
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#include <linux/ioport.h>
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int dev_read_resource(struct udevice *dev, uint index, struct resource *res)
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{
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ofnode node = dev_ofnode(dev);
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#ifdef CONFIG_OF_LIVE
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if (ofnode_is_np(node)) {
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return of_address_to_resource(ofnode_to_np(node), index, res);
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} else
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#endif
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{
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struct fdt_resource fres;
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int ret;
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ret = fdt_get_resource(gd->fdt_blob, ofnode_to_offset(node),
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"reg", index, &fres);
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if (ret < 0)
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return -EINVAL;
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memset(res, '\0', sizeof(*res));
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res->start = fres.start;
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res->end = fres.end;
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return 0;
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}
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}
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