blob: 73e4853939e0a97ae0cb02ac39553f203c0ffd8e [file] [log] [blame]
Simon Glass11f4dc12015-04-28 20:25:09 -06001/*
2 * Copyright (C) 2015 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 <cpu.h>
10#include <dm.h>
Bin Meng166c3982015-06-12 14:52:18 +080011#include <errno.h>
Simon Glass11f4dc12015-04-28 20:25:09 -060012#include <dm/lists.h>
13#include <dm/root.h>
14
Bin Meng6e6f4ce2015-06-17 11:15:36 +080015DECLARE_GLOBAL_DATA_PTR;
16
Simon Glass11f4dc12015-04-28 20:25:09 -060017int cpu_get_desc(struct udevice *dev, char *buf, int size)
18{
19 struct cpu_ops *ops = cpu_get_ops(dev);
20
21 if (!ops->get_desc)
22 return -ENOSYS;
23
24 return ops->get_desc(dev, buf, size);
25}
26
27int cpu_get_info(struct udevice *dev, struct cpu_info *info)
28{
29 struct cpu_ops *ops = cpu_get_ops(dev);
30
Bin Mengcb5cbfd2015-06-12 14:52:19 +080031 if (!ops->get_info)
Simon Glass11f4dc12015-04-28 20:25:09 -060032 return -ENOSYS;
33
34 return ops->get_info(dev, info);
35}
36
Bin Meng780bfdd2015-06-17 11:15:34 +080037int cpu_get_count(struct udevice *dev)
38{
39 struct cpu_ops *ops = cpu_get_ops(dev);
40
41 if (!ops->get_count)
42 return -ENOSYS;
43
44 return ops->get_count(dev);
45}
46
Alexander Graf94eaa792016-08-19 01:23:27 +020047int cpu_get_vendor(struct udevice *dev, char *buf, int size)
48{
49 struct cpu_ops *ops = cpu_get_ops(dev);
50
51 if (!ops->get_vendor)
52 return -ENOSYS;
53
54 return ops->get_vendor(dev, buf, size);
55}
56
Simon Glass11f4dc12015-04-28 20:25:09 -060057U_BOOT_DRIVER(cpu_bus) = {
58 .name = "cpu_bus",
59 .id = UCLASS_SIMPLE_BUS,
60 .per_child_platdata_auto_alloc_size = sizeof(struct cpu_platdata),
61};
62
63static int uclass_cpu_init(struct uclass *uc)
64{
65 struct udevice *dev;
Simon Glass45a26862017-05-18 20:09:07 -060066 ofnode node;
Simon Glass11f4dc12015-04-28 20:25:09 -060067 int ret;
68
Simon Glass45a26862017-05-18 20:09:07 -060069 node = ofnode_path("/cpus");
70 if (!ofnode_valid(node))
Simon Glass11f4dc12015-04-28 20:25:09 -060071 return 0;
72
73 ret = device_bind_driver_to_node(dm_root(), "cpu_bus", "cpus", node,
74 &dev);
75
76 return ret;
77}
78
79UCLASS_DRIVER(cpu) = {
80 .id = UCLASS_CPU,
81 .name = "cpu",
82 .flags = DM_UC_FLAG_SEQ_ALIAS,
83 .init = uclass_cpu_init,
84};