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41364f0f VB |
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> | |
84d6cbd3 SG |
13 | #include <dm.h> |
14 | #include <errno.h> | |
15 | ||
41364f0f VB |
16 | DECLARE_GLOBAL_DATA_PTR; |
17 | ||
84d6cbd3 | 18 | #ifndef CONFIG_DM_CROS_EC |
41364f0f VB |
19 | struct local_info { |
20 | struct cros_ec_dev *cros_ec_dev; /* Pointer to cros_ec device */ | |
21 | int cros_ec_err; /* Error for cros_ec, 0 if ok */ | |
22 | }; | |
23 | ||
24 | static struct local_info local; | |
84d6cbd3 | 25 | #endif |
41364f0f VB |
26 | |
27 | struct cros_ec_dev *board_get_cros_ec_dev(void) | |
28 | { | |
84d6cbd3 SG |
29 | #ifdef CONFIG_DM_CROS_EC |
30 | struct udevice *dev; | |
31 | int ret; | |
32 | ||
33 | ret = uclass_get_device(UCLASS_CROS_EC, 0, &dev); | |
34 | if (ret) { | |
35 | debug("%s: Error %d\n", __func__, ret); | |
36 | return NULL; | |
37 | } | |
38 | return dev->uclass_priv; | |
39 | #else | |
41364f0f | 40 | return local.cros_ec_dev; |
84d6cbd3 | 41 | #endif |
41364f0f VB |
42 | } |
43 | ||
44 | static int board_init_cros_ec_devices(const void *blob) | |
45 | { | |
84d6cbd3 | 46 | #ifndef CONFIG_DM_CROS_EC |
41364f0f VB |
47 | local.cros_ec_err = cros_ec_init(blob, &local.cros_ec_dev); |
48 | if (local.cros_ec_err) | |
49 | return -1; /* Will report in board_late_init() */ | |
84d6cbd3 | 50 | #endif |
41364f0f VB |
51 | |
52 | return 0; | |
53 | } | |
54 | ||
55 | int cros_ec_board_init(void) | |
56 | { | |
57 | return board_init_cros_ec_devices(gd->fdt_blob); | |
58 | } | |
59 | ||
60 | int cros_ec_get_error(void) | |
61 | { | |
84d6cbd3 SG |
62 | #ifdef CONFIG_DM_CROS_EC |
63 | struct udevice *dev; | |
64 | int ret; | |
65 | ||
66 | ret = uclass_get_device(UCLASS_CROS_EC, 0, &dev); | |
67 | if (ret && ret != -ENODEV) | |
68 | return ret; | |
69 | ||
70 | return 0; | |
71 | #else | |
41364f0f | 72 | return local.cros_ec_err; |
84d6cbd3 | 73 | #endif |
41364f0f | 74 | } |