1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * (C) Copyright 2020 - Texas Instruments Incorporated - http://www.ti.com/
4 * Dave Gerlach <d-gerlach@ti.com>
5 */
6
7 #include <common.h>
8 #include <soc.h>
9 #include <dm.h>
10 #include <errno.h>
11 #include <dm/lists.h>
12 #include <dm/root.h>
13
soc_get(struct udevice ** devp)14 int soc_get(struct udevice **devp)
15 {
16 return uclass_first_device_err(UCLASS_SOC, devp);
17 }
18
soc_get_machine(struct udevice * dev,char * buf,int size)19 int soc_get_machine(struct udevice *dev, char *buf, int size)
20 {
21 struct soc_ops *ops = soc_get_ops(dev);
22
23 if (!ops->get_machine)
24 return -ENOSYS;
25
26 return ops->get_machine(dev, buf, size);
27 }
28
soc_get_family(struct udevice * dev,char * buf,int size)29 int soc_get_family(struct udevice *dev, char *buf, int size)
30 {
31 struct soc_ops *ops = soc_get_ops(dev);
32
33 if (!ops->get_family)
34 return -ENOSYS;
35
36 return ops->get_family(dev, buf, size);
37 }
38
soc_get_revision(struct udevice * dev,char * buf,int size)39 int soc_get_revision(struct udevice *dev, char *buf, int size)
40 {
41 struct soc_ops *ops = soc_get_ops(dev);
42
43 if (!ops->get_revision)
44 return -ENOSYS;
45
46 return ops->get_revision(dev, buf, size);
47 }
48
49 const struct soc_attr *
soc_device_match(const struct soc_attr * matches)50 soc_device_match(const struct soc_attr *matches)
51 {
52 bool match;
53 struct udevice *soc;
54 char str[SOC_MAX_STR_SIZE];
55
56 if (!matches)
57 return NULL;
58
59 if (soc_get(&soc))
60 return NULL;
61
62 while (1) {
63 if (!(matches->machine || matches->family ||
64 matches->revision))
65 break;
66
67 match = true;
68
69 if (matches->machine) {
70 if (!soc_get_machine(soc, str, SOC_MAX_STR_SIZE)) {
71 if (strcmp(matches->machine, str))
72 match = false;
73 }
74 }
75
76 if (matches->family) {
77 if (!soc_get_family(soc, str, SOC_MAX_STR_SIZE)) {
78 if (strcmp(matches->family, str))
79 match = false;
80 }
81 }
82
83 if (matches->revision) {
84 if (!soc_get_revision(soc, str, SOC_MAX_STR_SIZE)) {
85 if (strcmp(matches->revision, str))
86 match = false;
87 }
88 }
89
90 if (match)
91 return matches;
92
93 matches++;
94 }
95
96 return NULL;
97 }
98
99 UCLASS_DRIVER(soc) = {
100 .id = UCLASS_SOC,
101 .name = "soc",
102 };
103