cmd: fdt: Map address returned from fdt get addr to sysmem
[platform/kernel/u-boot.git] / cmd / pmc.c
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Intel PMC command
4  *
5  * Copyright 2019 Google LLC
6  */
7
8 #include <common.h>
9 #include <command.h>
10 #include <dm.h>
11 #include <power/acpi_pmc.h>
12
13 static int get_pmc_dev(struct udevice **devp)
14 {
15         struct udevice *dev;
16         int ret;
17
18         ret = uclass_first_device_err(UCLASS_ACPI_PMC, &dev);
19         if (ret) {
20                 printf("Could not find device (err=%d)\n", ret);
21                 return ret;
22         }
23         ret = pmc_init(dev);
24         if (ret) {
25                 printf("Could not init device (err=%d)\n", ret);
26                 return ret;
27         }
28         *devp = dev;
29
30         return 0;
31 }
32
33 static int do_pmc_init(struct cmd_tbl *cmdtp, int flag, int argc,
34                        char *const argv[])
35 {
36         struct udevice *dev;
37         int ret;
38
39         ret = get_pmc_dev(&dev);
40         if (ret)
41                 return CMD_RET_FAILURE;
42
43         return 0;
44 }
45
46 static int do_pmc_info(struct cmd_tbl *cmdtp, int flag, int argc,
47                        char *const argv[])
48 {
49         struct udevice *dev;
50         int ret;
51
52         ret = get_pmc_dev(&dev);
53         if (ret)
54                 return CMD_RET_FAILURE;
55         pmc_dump_info(dev);
56
57         return 0;
58 }
59
60 static struct cmd_tbl cmd_pmc_sub[] = {
61         U_BOOT_CMD_MKENT(init, 0, 1, do_pmc_init, "", ""),
62         U_BOOT_CMD_MKENT(info, 0, 1, do_pmc_info, "", ""),
63 };
64
65 static int do_pmc(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
66 {
67         const struct cmd_tbl *cp;
68
69         if (argc < 2) /* no subcommand */
70                 return cmd_usage(cmdtp);
71
72         cp = find_cmd_tbl(argv[1], &cmd_pmc_sub[0], ARRAY_SIZE(cmd_pmc_sub));
73         if (!cp)
74                 return CMD_RET_USAGE;
75
76         return cp->cmd(cmdtp, flag, argc, argv);
77 }
78
79 U_BOOT_CMD(
80         pmc, 2, 1, do_pmc, "Power-management controller info",
81         "info - read state and show info about the PMC\n"
82         "pmc init - read state from the PMC\n"
83         );