xref: /openbmc/u-boot/common/cros_ec.c (revision 70ad375e)
1 /*
2  * Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
3  * Use of this source code is governed by a BSD-style license that can be
4  * found in the LICENSE file.
5  *
6  * Alternatively, this software may be distributed under the terms of the
7  * GNU General Public License ("GPL") version 2 as published by the Free
8  * Software Foundation.
9  */
10 
11 #include <common.h>
12 #include <cros_ec.h>
13 DECLARE_GLOBAL_DATA_PTR;
14 
15 struct local_info {
16 	struct cros_ec_dev *cros_ec_dev;	/* Pointer to cros_ec device */
17 	int cros_ec_err;			/* Error for cros_ec, 0 if ok */
18 };
19 
20 static struct local_info local;
21 
22 struct cros_ec_dev *board_get_cros_ec_dev(void)
23 {
24 	return local.cros_ec_dev;
25 }
26 
27 static int board_init_cros_ec_devices(const void *blob)
28 {
29 	local.cros_ec_err = cros_ec_init(blob, &local.cros_ec_dev);
30 	if (local.cros_ec_err)
31 		return -1;  /* Will report in board_late_init() */
32 
33 	return 0;
34 }
35 
36 int cros_ec_board_init(void)
37 {
38 	return board_init_cros_ec_devices(gd->fdt_blob);
39 }
40 
41 int cros_ec_get_error(void)
42 {
43 	return local.cros_ec_err;
44 }
45