drivers/cpu/cpu_sandbox.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2018
   4  * Mario Six, Guntermann & Drunck GmbH, mario.six@gdsys.cc
   5  */
   6
   7 #include <common.h>
   8 #include <dm.h>
   9 #include <cpu.h>
  10
  11 int cpu_sandbox_get_desc(struct udevice *dev, char *buf, int size)
  12 {
  13         snprintf(buf, size, "LEG Inc. SuperMegaUltraTurbo CPU No. 1");
  14
  15         return 0;
  16 }
  17
  18 int cpu_sandbox_get_info(struct udevice *dev, struct cpu_info *info)
  19 {
  20         info->cpu_freq = 42 * 42 * 42 * 42 * 42;
  21         info->features = 0x42424242;
  22         info->address_width = IS_ENABLED(CONFIG_PHYS_64BIT) ? 64 : 32;
  23
  24         return 0;
  25 }
  26
  27 int cpu_sandbox_get_count(struct udevice *dev)
  28 {
  29         return 42;
  30 }
  31
  32 int cpu_sandbox_get_vendor(struct udevice *dev, char *buf, int size)
  33 {
  34         snprintf(buf, size, "Languid Example Garbage Inc.");
  35
  36         return 0;
  37 }
  38
  39 int cpu_sandbox_is_current(struct udevice *dev)
  40 {
  41         if (!strcmp(dev->name, "cpu-test1"))
  42                 return 1;
  43
  44         return 0;
  45 }
  46
  47 static const struct cpu_ops cpu_sandbox_ops = {
  48         .get_desc = cpu_sandbox_get_desc,
  49         .get_info = cpu_sandbox_get_info,
  50         .get_count = cpu_sandbox_get_count,
  51         .get_vendor = cpu_sandbox_get_vendor,
  52         .is_current = cpu_sandbox_is_current,
  53 };
  54
  55 int cpu_sandbox_probe(struct udevice *dev)
  56 {
  57         return 0;
  58 }
  59
  60 static const struct udevice_id cpu_sandbox_ids[] = {
  61         { .compatible = "sandbox,cpu_sandbox" },
  62         { }
  63 };
  64
  65 U_BOOT_DRIVER(cpu_sandbox) = {
  66         .name           = "cpu_sandbox",
  67         .id             = UCLASS_CPU,
  68         .ops            = &cpu_sandbox_ops,
  69         .of_match       = cpu_sandbox_ids,
  70         .probe          = cpu_sandbox_probe,
  71 };