drivers/pch/pch9.c

   1 /*
   2  * Copyright (C) 2014 Google, Inc
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <common.h>
   8 #include <dm.h>
   9 #include <pch.h>
  10
  11 #define SBASE_ADDR      0x54
  12
  13 static int pch9_get_sbase(struct udevice *dev, ulong *sbasep)
  14 {
  15         uint32_t sbase_addr;
  16
  17         dm_pci_read_config32(dev, SBASE_ADDR, &sbase_addr);
  18         *sbasep = sbase_addr & 0xfffffe00;
  19
  20         return 0;
  21 }
  22
  23 static const struct pch_ops pch9_ops = {
  24         .get_sbase      = pch9_get_sbase,
  25 };
  26
  27 static const struct udevice_id pch9_ids[] = {
  28         { .compatible = "intel,pch9" },
  29         { }
  30 };
  31
  32 U_BOOT_DRIVER(pch9_drv) = {
  33         .name           = "intel-pch9",
  34         .id             = UCLASS_PCH,
  35         .of_match       = pch9_ids,
  36         .ops            = &pch9_ops,
  37 };