83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
118 lines
2.4 KiB
C
118 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2015 Google, Inc
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* Written by Simon Glass <sjg@chromium.org>
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* Copyright (c) 2017 Álvaro Fernández Rojas <noltari@gmail.com>
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*/
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#include <common.h>
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#include <command.h>
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#include <cpu.h>
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#include <dm.h>
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#include <errno.h>
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static const char *cpu_feature_name[CPU_FEAT_COUNT] = {
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"L1 cache",
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"MMU",
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"Microcode",
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"Device ID",
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};
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static int print_cpu_list(bool detail)
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{
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struct udevice *dev;
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char buf[100];
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for (uclass_first_device(UCLASS_CPU, &dev);
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dev;
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uclass_next_device(&dev)) {
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struct cpu_platdata *plat = dev_get_parent_platdata(dev);
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struct cpu_info info;
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bool first = true;
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int ret, i;
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ret = cpu_get_desc(dev, buf, sizeof(buf));
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printf("%3d: %-10s %s\n", dev->seq, dev->name,
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ret ? "<no description>" : buf);
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if (!detail)
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continue;
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ret = cpu_get_info(dev, &info);
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if (ret) {
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printf("\t(no detail available");
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if (ret != -ENOSYS)
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printf(": err=%d", ret);
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printf(")\n");
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continue;
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}
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printf("\tID = %d, freq = ", plat->cpu_id);
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print_freq(info.cpu_freq, "");
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for (i = 0; i < CPU_FEAT_COUNT; i++) {
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if (info.features & (1 << i)) {
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printf("%s%s", first ? ": " : ", ",
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cpu_feature_name[i]);
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first = false;
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}
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}
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printf("\n");
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if (info.features & (1 << CPU_FEAT_UCODE))
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printf("\tMicrocode version %#x\n",
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plat->ucode_version);
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if (info.features & (1 << CPU_FEAT_DEVICE_ID))
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printf("\tDevice ID %#lx\n", plat->device_id);
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}
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return 0;
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}
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static int do_cpu_list(cmd_tbl_t *cmdtp, int flag, int argc,
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char *const argv[])
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{
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if (print_cpu_list(false))
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return CMD_RET_FAILURE;
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return 0;
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}
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static int do_cpu_detail(cmd_tbl_t *cmdtp, int flag, int argc,
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char *const argv[])
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{
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if (print_cpu_list(true))
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return CMD_RET_FAILURE;
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return 0;
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}
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static cmd_tbl_t cmd_cpu_sub[] = {
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U_BOOT_CMD_MKENT(list, 2, 1, do_cpu_list, "", ""),
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U_BOOT_CMD_MKENT(detail, 4, 0, do_cpu_detail, "", ""),
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};
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/*
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* Process a cpu sub-command
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*/
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static int do_cpu(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[])
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{
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cmd_tbl_t *c = NULL;
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/* Strip off leading 'cpu' command argument */
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argc--;
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argv++;
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if (argc)
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c = find_cmd_tbl(argv[0], cmd_cpu_sub,
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ARRAY_SIZE(cmd_cpu_sub));
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if (c)
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return c->cmd(cmdtp, flag, argc, argv);
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else
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return CMD_RET_USAGE;
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}
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U_BOOT_CMD(
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cpu, 2, 1, do_cpu,
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"display information about CPUs",
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"list - list available CPUs\n"
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"cpu detail - show CPU detail"
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);
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