projects / J-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 <[email protected]> | |
| 320eca5c | 5 | * Copyright (c) 2017 Álvaro Fernández Rojas <[email protected]> |
| 8e2fac05 SG |
6 | */ |
| 7 | ||
| 8e2fac05 SG |
8 | #include <command.h> |
| 9 | #include <cpu.h> | |
| 4e4bf944 | 10 | #include <display_options.h> |
| 8e2fac05 | 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)) { | |
| 8a8d24bd | 29 | struct cpu_plat *plat = dev_get_parent_plat(dev); |
| 8e2fac05 | 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)); | |
| 8b85dfc6 | 35 | printf("%3d: %-10s %s\n", dev_seq(dev), dev->name, |
| 8e2fac05 SG |
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 | ||
| 09140113 | 67 | static int do_cpu_list(struct cmd_tbl *cmdtp, int flag, int argc, |
| 320eca5c | 68 | char *const argv[]) |
| 8e2fac05 SG |
69 | { |
| 70 | if (print_cpu_list(false)) | |
| 71 | return CMD_RET_FAILURE; | |
| 72 | ||
| 73 | return 0; | |
| 74 | } | |
| 75 | ||
| 09140113 | 76 | static int do_cpu_detail(struct cmd_tbl *cmdtp, int flag, int argc, |
| 8e2fac05 SG |
77 | char *const argv[]) |
| 78 | { | |
| 79 | if (print_cpu_list(true)) | |
| 80 | return CMD_RET_FAILURE; | |
| 81 | ||
| 82 | return 0; | |
| 83 | } | |
| 84 | ||
| 3616218b | 85 | U_BOOT_LONGHELP(cpu, |
| 8e2fac05 | 86 | "list - list available CPUs\n" |
| 3616218b | 87 | "cpu detail - show CPU detail"); |
| 15c924a7 OP |
88 | |
| 89 | U_BOOT_CMD_WITH_SUBCMDS(cpu, "display information about CPUs", cpu_help_text, | |
| 90 | U_BOOT_SUBCMD_MKENT(list, 1, 1, do_cpu_list), | |
| 91 | U_BOOT_SUBCMD_MKENT(detail, 1, 0, do_cpu_detail)); |