projects / thirdparty / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 3b65ee34 SG |
1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | /* | |
| 3 | * Intel PMC command | |
| 4 | * | |
| 5 | * Copyright 2019 Google LLC | |
| 6 | */ | |
| 7 | ||
| d678a59d | 8 | #include <common.h> |
| 3b65ee34 SG |
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 | ||
| 09140113 SG |
33 | static int do_pmc_init(struct cmd_tbl *cmdtp, int flag, int argc, |
| 34 | char *const argv[]) | |
| 3b65ee34 SG |
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 | ||
| 09140113 SG |
46 | static int do_pmc_info(struct cmd_tbl *cmdtp, int flag, int argc, |
| 47 | char *const argv[]) | |
| 3b65ee34 SG |
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 | ||
| 09140113 | 60 | static struct cmd_tbl cmd_pmc_sub[] = { |
| 3b65ee34 SG |
61 | U_BOOT_CMD_MKENT(init, 0, 1, do_pmc_init, "", ""), |
| 62 | U_BOOT_CMD_MKENT(info, 0, 1, do_pmc_info, "", ""), | |
| 63 | }; | |
| 64 | ||
| 09140113 | 65 | static int do_pmc(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) |
| 3b65ee34 | 66 | { |
| 09140113 | 67 | const struct cmd_tbl *cp; |
| 3b65ee34 SG |
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 | ); |