projects / thirdparty / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 83d290c5 | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 8e2fac05 SG |
2 | /* |
| 3 | * Copyright (c) 2015 Google, Inc | |
| 4 | * Written by Simon Glass <sjg@chromium.org> | |
| 320eca5c | 5 | * Copyright (c) 2017 Álvaro Fernández Rojas <noltari@gmail.com> |
| 8e2fac05 SG |
6 | */ |
| 7 | ||
| 8 | #include <common.h> | |
| 9 | #include <command.h> | |
| 10 | #include <cpu.h> | |
| 11 | #include <dm.h> | |
| 166c3984 | 12 | #include <errno.h> |
| 8e2fac05 SG |
13 | |
| 14 | static const char *cpu_feature_name[CPU_FEAT_COUNT] = { | |
| 15 | "L1 cache", | |
| 16 | "MMU", | |
| 740d5d34 | 17 | "Microcode", |
| 22c2c179 | 18 | "Device ID", |
| 8e2fac05 SG |
19 | }; |
| 20 | ||
| 21 | static int print_cpu_list(bool detail) | |
| 22 | { | |
| 23 | struct udevice *dev; | |
| 8e2fac05 | 24 | char buf[100]; |
| 8e2fac05 | 25 | |
| 320eca5c ÁFR |
26 | for (uclass_first_device(UCLASS_CPU, &dev); |
| 27 | dev; | |
| 28 | uclass_next_device(&dev)) { | |
| 8e2fac05 SG |
29 | struct cpu_platdata *plat = dev_get_parent_platdata(dev); |
| 30 | struct cpu_info info; | |
| 320eca5c ÁFR |
31 | bool first = true; |
| 32 | int ret, i; | |
| 8e2fac05 SG |
33 | |
| 34 | ret = cpu_get_desc(dev, buf, sizeof(buf)); | |
| 35 | printf("%3d: %-10s %s\n", dev->seq, dev->name, | |
| 36 | ret ? "<no description>" : buf); | |
| 37 | if (!detail) | |
| 38 | continue; | |
| 39 | ret = cpu_get_info(dev, &info); | |
| 40 | if (ret) { | |
| 41 | printf("\t(no detail available"); | |
| 42 | if (ret != -ENOSYS) | |
| 320eca5c | 43 | printf(": err=%d", ret); |
| 8e2fac05 SG |
44 | printf(")\n"); |
| 45 | continue; | |
| 46 | } | |
| 47 | printf("\tID = %d, freq = ", plat->cpu_id); | |
| 48 | print_freq(info.cpu_freq, ""); | |
| 8e2fac05 SG |
49 | for (i = 0; i < CPU_FEAT_COUNT; i++) { |
| 50 | if (info.features & (1 << i)) { | |
| 51 | printf("%s%s", first ? ": " : ", ", | |
| 52 | cpu_feature_name[i]); | |
| 53 | first = false; | |
| 54 | } | |
| 55 | } | |
| 56 | printf("\n"); | |
| 320eca5c | 57 | if (info.features & (1 << CPU_FEAT_UCODE)) |
| 740d5d34 SG |
58 | printf("\tMicrocode version %#x\n", |
| 59 | plat->ucode_version); | |
| 740d5d34 SG |
60 | if (info.features & (1 << CPU_FEAT_DEVICE_ID)) |
| 61 | printf("\tDevice ID %#lx\n", plat->device_id); | |
| 8e2fac05 SG |
62 | } |
| 63 | ||
| 64 | return 0; | |
| 65 | } | |
| 66 | ||
| 320eca5c ÁFR |
67 | static int do_cpu_list(cmd_tbl_t *cmdtp, int flag, int argc, |
| 68 | char *const argv[]) | |
| 8e2fac05 SG |
69 | { |
| 70 | if (print_cpu_list(false)) | |
| 71 | return CMD_RET_FAILURE; | |
| 72 | ||
| 73 | return 0; | |
| 74 | } | |
| 75 | ||
| 76 | static int do_cpu_detail(cmd_tbl_t *cmdtp, int flag, int argc, | |
| 77 | char *const argv[]) | |
| 78 | { | |
| 79 | if (print_cpu_list(true)) | |
| 80 | return CMD_RET_FAILURE; | |
| 81 | ||
| 82 | return 0; | |
| 83 | } | |
| 84 | ||
| 85 | static cmd_tbl_t cmd_cpu_sub[] = { | |
| 86 | U_BOOT_CMD_MKENT(list, 2, 1, do_cpu_list, "", ""), | |
| 87 | U_BOOT_CMD_MKENT(detail, 4, 0, do_cpu_detail, "", ""), | |
| 88 | }; | |
| 89 | ||
| 90 | /* | |
| 91 | * Process a cpu sub-command | |
| 92 | */ | |
| 93 | static int do_cpu(cmd_tbl_t *cmdtp, int flag, int argc, | |
| 320eca5c | 94 | char * const argv[]) |
| 8e2fac05 SG |
95 | { |
| 96 | cmd_tbl_t *c = NULL; | |
| 97 | ||
| 98 | /* Strip off leading 'cpu' command argument */ | |
| 99 | argc--; | |
| 100 | argv++; | |
| 101 | ||
| 102 | if (argc) | |
| 320eca5c ÁFR |
103 | c = find_cmd_tbl(argv[0], cmd_cpu_sub, |
| 104 | ARRAY_SIZE(cmd_cpu_sub)); | |
| 8e2fac05 SG |
105 | |
| 106 | if (c) | |
| 107 | return c->cmd(cmdtp, flag, argc, argv); | |
| 108 | else | |
| 109 | return CMD_RET_USAGE; | |
| 110 | } | |
| 111 | ||
| 112 | U_BOOT_CMD( | |
| 113 | cpu, 2, 1, do_cpu, | |
| 114 | "display information about CPUs", | |
| 115 | "list - list available CPUs\n" | |
| 116 | "cpu detail - show CPU detail" | |
| 117 | ); |