1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Copyright (C) 2015 Google, Inc
3*4882a593Smuzhiyun * Written by Simon Glass <sjg@chromium.org>
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun #include <common.h>
9*4882a593Smuzhiyun #include <cpu.h>
10*4882a593Smuzhiyun #include <dm.h>
11*4882a593Smuzhiyun #include <errno.h>
12*4882a593Smuzhiyun #include <dm/lists.h>
13*4882a593Smuzhiyun #include <dm/root.h>
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun DECLARE_GLOBAL_DATA_PTR;
16*4882a593Smuzhiyun
cpu_get_desc(struct udevice * dev,char * buf,int size)17*4882a593Smuzhiyun int cpu_get_desc(struct udevice *dev, char *buf, int size)
18*4882a593Smuzhiyun {
19*4882a593Smuzhiyun struct cpu_ops *ops = cpu_get_ops(dev);
20*4882a593Smuzhiyun
21*4882a593Smuzhiyun if (!ops->get_desc)
22*4882a593Smuzhiyun return -ENOSYS;
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun return ops->get_desc(dev, buf, size);
25*4882a593Smuzhiyun }
26*4882a593Smuzhiyun
cpu_get_info(struct udevice * dev,struct cpu_info * info)27*4882a593Smuzhiyun int cpu_get_info(struct udevice *dev, struct cpu_info *info)
28*4882a593Smuzhiyun {
29*4882a593Smuzhiyun struct cpu_ops *ops = cpu_get_ops(dev);
30*4882a593Smuzhiyun
31*4882a593Smuzhiyun if (!ops->get_info)
32*4882a593Smuzhiyun return -ENOSYS;
33*4882a593Smuzhiyun
34*4882a593Smuzhiyun return ops->get_info(dev, info);
35*4882a593Smuzhiyun }
36*4882a593Smuzhiyun
cpu_get_count(struct udevice * dev)37*4882a593Smuzhiyun int cpu_get_count(struct udevice *dev)
38*4882a593Smuzhiyun {
39*4882a593Smuzhiyun struct cpu_ops *ops = cpu_get_ops(dev);
40*4882a593Smuzhiyun
41*4882a593Smuzhiyun if (!ops->get_count)
42*4882a593Smuzhiyun return -ENOSYS;
43*4882a593Smuzhiyun
44*4882a593Smuzhiyun return ops->get_count(dev);
45*4882a593Smuzhiyun }
46*4882a593Smuzhiyun
cpu_get_vendor(struct udevice * dev,char * buf,int size)47*4882a593Smuzhiyun int cpu_get_vendor(struct udevice *dev, char *buf, int size)
48*4882a593Smuzhiyun {
49*4882a593Smuzhiyun struct cpu_ops *ops = cpu_get_ops(dev);
50*4882a593Smuzhiyun
51*4882a593Smuzhiyun if (!ops->get_vendor)
52*4882a593Smuzhiyun return -ENOSYS;
53*4882a593Smuzhiyun
54*4882a593Smuzhiyun return ops->get_vendor(dev, buf, size);
55*4882a593Smuzhiyun }
56*4882a593Smuzhiyun
57*4882a593Smuzhiyun U_BOOT_DRIVER(cpu_bus) = {
58*4882a593Smuzhiyun .name = "cpu_bus",
59*4882a593Smuzhiyun .id = UCLASS_SIMPLE_BUS,
60*4882a593Smuzhiyun .per_child_platdata_auto_alloc_size = sizeof(struct cpu_platdata),
61*4882a593Smuzhiyun };
62*4882a593Smuzhiyun
uclass_cpu_init(struct uclass * uc)63*4882a593Smuzhiyun static int uclass_cpu_init(struct uclass *uc)
64*4882a593Smuzhiyun {
65*4882a593Smuzhiyun struct udevice *dev;
66*4882a593Smuzhiyun ofnode node;
67*4882a593Smuzhiyun int ret;
68*4882a593Smuzhiyun
69*4882a593Smuzhiyun node = ofnode_path("/cpus");
70*4882a593Smuzhiyun if (!ofnode_valid(node))
71*4882a593Smuzhiyun return 0;
72*4882a593Smuzhiyun
73*4882a593Smuzhiyun ret = device_bind_driver_to_node(dm_root(), "cpu_bus", "cpus", node,
74*4882a593Smuzhiyun &dev);
75*4882a593Smuzhiyun
76*4882a593Smuzhiyun return ret;
77*4882a593Smuzhiyun }
78*4882a593Smuzhiyun
79*4882a593Smuzhiyun UCLASS_DRIVER(cpu) = {
80*4882a593Smuzhiyun .id = UCLASS_CPU,
81*4882a593Smuzhiyun .name = "cpu",
82*4882a593Smuzhiyun .flags = DM_UC_FLAG_SEQ_ALIAS,
83*4882a593Smuzhiyun .init = uclass_cpu_init,
84*4882a593Smuzhiyun };
85