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/*
* Copyright (c) 2017 Google, Inc
* Written by Simon Glass <sjg@chromium.org>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
#include <dm/of_addr.h>
#include <dm/read.h>
#include <linux/ioport.h>
int dev_read_resource(struct udevice *dev, uint index, struct resource *res)
{
ofnode node = dev_ofnode(dev);
#ifdef CONFIG_OF_LIVE
if (ofnode_is_np(node)) {
return of_address_to_resource(ofnode_to_np(node), index, res);
} else
#endif
{
struct fdt_resource fres;
int ret;
ret = fdt_get_resource(gd->fdt_blob, ofnode_to_offset(node),
"reg", index, &fres);
if (ret < 0)
return -EINVAL;
memset(res, '\0', sizeof(*res));
res->start = fres.start;
res->end = fres.end;
return 0;
}
}
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