15c924a743
Migrate cpu command to use U_BOOT_CMD_WITH_SUBCMDS() helper macro, to reduce duplicated code. This also fixes the cpu command on boards that enable CONFIG_NEEDS_MANUAL_RELOC. Signed-off-by: Ovidiu Panait <ovpanait@gmail.com> Link: https://lore.kernel.org/r/20220531181435.3473549-1-ovpanait@gmail.com Signed-off-by: Michal Simek <michal.simek@amd.com>
95 lines
2.1 KiB
C
95 lines
2.1 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_plat *plat = dev_get_parent_plat(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), 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(struct cmd_tbl *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(struct cmd_tbl *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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#if CONFIG_IS_ENABLED(SYS_LONGHELP)
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static char cpu_help_text[] =
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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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#endif
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U_BOOT_CMD_WITH_SUBCMDS(cpu, "display information about CPUs", cpu_help_text,
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U_BOOT_SUBCMD_MKENT(list, 1, 1, do_cpu_list),
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U_BOOT_SUBCMD_MKENT(detail, 1, 0, do_cpu_detail));
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