drivers/misc/p2sb_sandbox.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Sandbox P2SB for testing
   4  *
   5  * Copyright 2019 Google LLC
   6  */
   7
   8 #define LOG_CATEGORY UCLASS_P2SB
   9
  10 #include <common.h>
  11 #include <dm.h>
  12 #include <asm/io.h>
  13 #include <p2sb.h>
  14
  15 struct sandbox_p2sb_priv {
  16         ulong base;
  17 };
  18
  19 static int sandbox_p2sb_probe(struct udevice *dev)
  20 {
  21         struct p2sb_uc_priv *upriv = dev_get_uclass_priv(dev);
  22
  23         upriv->mmio_base = dm_pci_read_bar32(dev, 0);
  24
  25         return 0;
  26 }
  27
  28 static const struct udevice_id sandbox_p2sb_ids[] = {
  29         { .compatible = "sandbox,p2sb" },
  30         { }
  31 };
  32
  33 U_BOOT_DRIVER(p2sb_sandbox) = {
  34         .name = "p2sb_sandbox",
  35         .id = UCLASS_P2SB,
  36         .of_match = sandbox_p2sb_ids,
  37         .probe = sandbox_p2sb_probe,
  38         .priv_auto      = sizeof(struct sandbox_p2sb_priv),
  39 };