arm: socfpga: Enable all FPGA config support for Arria 10
[platform/kernel/u-boot.git] / drivers / core / read_extra.c
1 /*
2  * Copyright (c) 2017 Google, Inc
3  * Written by Simon Glass <sjg@chromium.org>
4  *
5  * SPDX-License-Identifier:     GPL-2.0+
6  */
7
8 #include <common.h>
9 #include <dm.h>
10 #include <dm/of_addr.h>
11 #include <dm/read.h>
12 #include <linux/ioport.h>
13
14 int dev_read_resource(struct udevice *dev, uint index, struct resource *res)
15 {
16         ofnode node = dev_ofnode(dev);
17
18 #ifdef CONFIG_OF_LIVE
19         if (ofnode_is_np(node)) {
20                 return of_address_to_resource(ofnode_to_np(node), index, res);
21         } else
22 #endif
23                 {
24                 struct fdt_resource fres;
25                 int ret;
26
27                 ret = fdt_get_resource(gd->fdt_blob, ofnode_to_offset(node),
28                                        "reg", index, &fres);
29                 if (ret < 0)
30                         return -EINVAL;
31                 memset(res, '\0', sizeof(*res));
32                 res->start = fres.start;
33                 res->end = fres.end;
34
35                 return 0;
36         }
37 }