u-boot/cmd/cpu.c
Simon Glass 8b85dfc675 dm: Avoid accessing seq directly
At present various drivers etc. access the device's 'seq' member directly.
This makes it harder to change the meaning of that member. Change access
to go through a function instead.

The drivers/i2c/lpc32xx_i2c.c file is left unchanged for now.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-18 20:32:21 -07:00

117 lines
2.5 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2015 Google, Inc
* Written by Simon Glass <sjg@chromium.org>
* Copyright (c) 2017 Álvaro Fernández Rojas <noltari@gmail.com>
*/
#include <common.h>
#include <command.h>
#include <cpu.h>
#include <dm.h>
#include <errno.h>
static const char *cpu_feature_name[CPU_FEAT_COUNT] = {
"L1 cache",
"MMU",
"Microcode",
"Device ID",
};
static int print_cpu_list(bool detail)
{
struct udevice *dev;
char buf[100];
for (uclass_first_device(UCLASS_CPU, &dev);
dev;
uclass_next_device(&dev)) {
struct cpu_plat *plat = dev_get_parent_plat(dev);
struct cpu_info info;
bool first = true;
int ret, i;
ret = cpu_get_desc(dev, buf, sizeof(buf));
printf("%3d: %-10s %s\n", dev_seq(dev), dev->name,
ret ? "<no description>" : buf);
if (!detail)
continue;
ret = cpu_get_info(dev, &info);
if (ret) {
printf("\t(no detail available");
if (ret != -ENOSYS)
printf(": err=%d", ret);
printf(")\n");
continue;
}
printf("\tID = %d, freq = ", plat->cpu_id);
print_freq(info.cpu_freq, "");
for (i = 0; i < CPU_FEAT_COUNT; i++) {
if (info.features & (1 << i)) {
printf("%s%s", first ? ": " : ", ",
cpu_feature_name[i]);
first = false;
}
}
printf("\n");
if (info.features & (1 << CPU_FEAT_UCODE))
printf("\tMicrocode version %#x\n",
plat->ucode_version);
if (info.features & (1 << CPU_FEAT_DEVICE_ID))
printf("\tDevice ID %#lx\n", plat->device_id);
}
return 0;
}
static int do_cpu_list(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
if (print_cpu_list(false))
return CMD_RET_FAILURE;
return 0;
}
static int do_cpu_detail(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
if (print_cpu_list(true))
return CMD_RET_FAILURE;
return 0;
}
static struct cmd_tbl cmd_cpu_sub[] = {
U_BOOT_CMD_MKENT(list, 2, 1, do_cpu_list, "", ""),
U_BOOT_CMD_MKENT(detail, 4, 0, do_cpu_detail, "", ""),
};
/*
* Process a cpu sub-command
*/
static int do_cpu(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
struct cmd_tbl *c = NULL;
/* Strip off leading 'cpu' command argument */
argc--;
argv++;
if (argc)
c = find_cmd_tbl(argv[0], cmd_cpu_sub,
ARRAY_SIZE(cmd_cpu_sub));
if (c)
return c->cmd(cmdtp, flag, argc, argv);
else
return CMD_RET_USAGE;
}
U_BOOT_CMD(
cpu, 2, 1, do_cpu,
"display information about CPUs",
"list - list available CPUs\n"
"cpu detail - show CPU detail"
);