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 #define LOG_CATEGORY UCLASS_SOC
8
9 #include <common.h>
10 #include <soc.h>
11 #include <dm.h>
12 #include <errno.h>
13 #include <dm/lists.h>
14 #include <dm/root.h>
15
soc_get(struct udevice ** devp)16 int soc_get(struct udevice **devp)
17 {
18 return uclass_first_device_err(UCLASS_SOC, devp);
19 }
20
soc_get_machine(struct udevice * dev,char * buf,int size)21 int soc_get_machine(struct udevice *dev, char *buf, int size)
22 {
23 struct soc_ops *ops = soc_get_ops(dev);
24
25 if (!ops->get_machine)
26 return -ENOSYS;
27
28 return ops->get_machine(dev, buf, size);
29 }
30
soc_get_family(struct udevice * dev,char * buf,int size)31 int soc_get_family(struct udevice *dev, char *buf, int size)
32 {
33 struct soc_ops *ops = soc_get_ops(dev);
34
35 if (!ops->get_family)
36 return -ENOSYS;
37
38 return ops->get_family(dev, buf, size);
39 }
40
soc_get_revision(struct udevice * dev,char * buf,int size)41 int soc_get_revision(struct udevice *dev, char *buf, int size)
42 {
43 struct soc_ops *ops = soc_get_ops(dev);
44
45 if (!ops->get_revision)
46 return -ENOSYS;
47
48 return ops->get_revision(dev, buf, size);
49 }
50
51 const struct soc_attr *
soc_device_match(const struct soc_attr * matches)52 soc_device_match(const struct soc_attr *matches)
53 {
54 bool match;
55 struct udevice *soc;
56 char str[SOC_MAX_STR_SIZE];
57
58 if (!matches)
59 return NULL;
60
61 if (soc_get(&soc))
62 return NULL;
63
64 while (1) {
65 if (!(matches->machine || matches->family ||
66 matches->revision))
67 break;
68
69 match = true;
70
71 if (matches->machine) {
72 if (!soc_get_machine(soc, str, SOC_MAX_STR_SIZE)) {
73 if (strcmp(matches->machine, str))
74 match = false;
75 }
76 }
77
78 if (matches->family) {
79 if (!soc_get_family(soc, str, SOC_MAX_STR_SIZE)) {
80 if (strcmp(matches->family, str))
81 match = false;
82 }
83 }
84
85 if (matches->revision) {
86 if (!soc_get_revision(soc, str, SOC_MAX_STR_SIZE)) {
87 if (strcmp(matches->revision, str))
88 match = false;
89 }
90 }
91
92 if (match)
93 return matches;
94
95 matches++;
96 }
97
98 return NULL;
99 }
100
101 UCLASS_DRIVER(soc) = {
102 .id = UCLASS_SOC,
103 .name = "soc",
104 };
105