]>
git.ipfire.org Git - people/ms/u-boot.git/blob - cmd/cpu.c
2 * Copyright (c) 2015 Google, Inc
3 * Written by Simon Glass <sjg@chromium.org>
5 * SPDX-License-Identifier: GPL-2.0+
14 static const char *cpu_feature_name
[CPU_FEAT_COUNT
] = {
20 static int print_cpu_list(bool detail
)
27 ret
= uclass_get(UCLASS_CPU
, &uc
);
29 printf("Cannot find CPU uclass\n");
32 uclass_foreach_dev(dev
, uc
) {
33 struct cpu_platdata
*plat
= dev_get_parent_platdata(dev
);
38 ret
= cpu_get_desc(dev
, buf
, sizeof(buf
));
39 printf("%3d: %-10s %s\n", dev
->seq
, dev
->name
,
40 ret
? "<no description>" : buf
);
43 ret
= cpu_get_info(dev
, &info
);
45 printf("\t(no detail available");
47 printf(": err=%d\n", ret
);
51 printf("\tID = %d, freq = ", plat
->cpu_id
);
52 print_freq(info
.cpu_freq
, "");
54 for (i
= 0; i
< CPU_FEAT_COUNT
; i
++) {
55 if (info
.features
& (1 << i
)) {
56 printf("%s%s", first
? ": " : ", ",
62 if (info
.features
& (1 << CPU_FEAT_UCODE
)) {
63 printf("\tMicrocode version %#x\n",
66 if (info
.features
& (1 << CPU_FEAT_DEVICE_ID
))
67 printf("\tDevice ID %#lx\n", plat
->device_id
);
73 static int do_cpu_list(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *const argv
[])
75 if (print_cpu_list(false))
76 return CMD_RET_FAILURE
;
81 static int do_cpu_detail(cmd_tbl_t
*cmdtp
, int flag
, int argc
,
84 if (print_cpu_list(true))
85 return CMD_RET_FAILURE
;
90 static cmd_tbl_t cmd_cpu_sub
[] = {
91 U_BOOT_CMD_MKENT(list
, 2, 1, do_cpu_list
, "", ""),
92 U_BOOT_CMD_MKENT(detail
, 4, 0, do_cpu_detail
, "", ""),
96 * Process a cpu sub-command
98 static int do_cpu(cmd_tbl_t
*cmdtp
, int flag
, int argc
,
103 /* Strip off leading 'cpu' command argument */
108 c
= find_cmd_tbl(argv
[0], cmd_cpu_sub
, ARRAY_SIZE(cmd_cpu_sub
));
111 return c
->cmd(cmdtp
, flag
, argc
, argv
);
113 return CMD_RET_USAGE
;
118 "display information about CPUs",
119 "list - list available CPUs\n"
120 "cpu detail - show CPU detail"