git.sur5r.net Git - u-boot/blob - arch/x86/cpu/qemu/cpu.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2015, Miao Yan <yanmiaobest@gmail.com>
   4  */
   5
   6 #include <common.h>
   7 #include <cpu.h>
   8 #include <dm.h>
   9 #include <errno.h>
  10 #include <qfw.h>
  11 #include <asm/cpu.h>
  12
  13 int cpu_qemu_get_desc(struct udevice *dev, char *buf, int size)
  14 {
  15         if (size < CPU_MAX_NAME_LEN)
  16                 return -ENOSPC;
  17
  18         cpu_get_name(buf);
  19
  20         return 0;
  21 }
  22
  23 static int cpu_qemu_get_count(struct udevice *dev)
  24 {
  25         return qemu_fwcfg_online_cpus();
  26 }
  27
  28 static const struct cpu_ops cpu_qemu_ops = {
  29         .get_desc       = cpu_qemu_get_desc,
  30         .get_count      = cpu_qemu_get_count,
  31 };
  32
  33 static const struct udevice_id cpu_qemu_ids[] = {
  34         { .compatible = "cpu-qemu" },
  35         { }
  36 };
  37
  38 U_BOOT_DRIVER(cpu_qemu_drv) = {
  39         .name           = "cpu_qemu",
  40         .id             = UCLASS_CPU,
  41         .of_match       = cpu_qemu_ids,
  42         .ops            = &cpu_qemu_ops,
  43 };