drivers/pch/sandbox_pch.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright 2018 Google LLC
   4  */
   5
   6 #include <common.h>
   7 #include <dm.h>
   8 #include <pch.h>
   9
  10 struct sandbox_pch_priv {
  11         bool protect;
  12 };
  13
  14 int sandbox_get_pch_spi_protect(struct udevice *dev)
  15 {
  16         struct sandbox_pch_priv *priv = dev_get_priv(dev);
  17
  18         return priv->protect;
  19 }
  20
  21 static int sandbox_pch_get_spi_base(struct udevice *dev, ulong *sbasep)
  22 {
  23         *sbasep = 0x10;
  24
  25         return 0;
  26 }
  27
  28 static int sandbox_pch_set_spi_protect(struct udevice *dev, bool protect)
  29 {
  30         struct sandbox_pch_priv *priv = dev_get_priv(dev);
  31
  32         priv->protect = protect;
  33
  34         return 0;
  35 }
  36
  37 static int sandbox_pch_get_gpio_base(struct udevice *dev, u32 *gbasep)
  38 {
  39         *gbasep = 0x20;
  40
  41         return 0;
  42 }
  43
  44 static int sandbox_pch_get_io_base(struct udevice *dev, u32 *iobasep)
  45 {
  46         *iobasep = 0x30;
  47
  48         return 0;
  49 }
  50
  51 int sandbox_pch_ioctl(struct udevice *dev, enum pch_req_t req, void *data,
  52                       int size)
  53 {
  54         switch (req) {
  55         case PCH_REQ_TEST1:
  56                 return -ENOSYS;
  57         case PCH_REQ_TEST2:
  58                 return *(char *)data;
  59         case PCH_REQ_TEST3:
  60                 *(char *)data = 'x';
  61                 return 1;
  62         default:
  63                 return -ENOSYS;
  64         }
  65 }
  66
  67 static const struct pch_ops sandbox_pch_ops = {
  68         .get_spi_base   = sandbox_pch_get_spi_base,
  69         .set_spi_protect = sandbox_pch_set_spi_protect,
  70         .get_gpio_base  = sandbox_pch_get_gpio_base,
  71         .get_io_base = sandbox_pch_get_io_base,
  72         .ioctl          = sandbox_pch_ioctl,
  73 };
  74
  75 static const struct udevice_id sandbox_pch_ids[] = {
  76         { .compatible = "sandbox,pch" },
  77         { }
  78 };
  79
  80 U_BOOT_DRIVER(sandbox_pch_drv) = {
  81         .name           = "sandbox-pch",
  82         .id             = UCLASS_PCH,
  83         .of_match       = sandbox_pch_ids,
  84         .ops            = &sandbox_pch_ops,
  85         .priv_auto_alloc_size   = sizeof(struct sandbox_pch_priv),
  86 };