drivers/pch/pch-uclass.c

   1 /*
   2  * Copyright (c) 2015 Google, Inc
   3  * Written by Simon Glass <sjg@chromium.org>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include <dm.h>
  10 #include <pch.h>
  11 #include <dm/root.h>
  12
  13 DECLARE_GLOBAL_DATA_PTR;
  14
  15 int pch_get_sbase(struct udevice *dev, ulong *sbasep)
  16 {
  17         struct pch_ops *ops = pch_get_ops(dev);
  18
  19         *sbasep = 0;
  20         if (!ops->get_sbase)
  21                 return -ENOSYS;
  22
  23         return ops->get_sbase(dev, sbasep);
  24 }
  25
  26 enum pch_version pch_get_version(struct udevice *dev)
  27 {
  28         struct pch_ops *ops = pch_get_ops(dev);
  29
  30         if (!ops->get_version)
  31                 return -ENOSYS;
  32
  33         return ops->get_version(dev);
  34 }
  35
  36 int pch_set_spi_protect(struct udevice *dev, bool protect)
  37 {
  38         struct pch_ops *ops = pch_get_ops(dev);
  39
  40         if (!ops->set_spi_protect)
  41                 return -ENOSYS;
  42
  43         return ops->set_spi_protect(dev, protect);
  44 }
  45
  46 static int pch_uclass_post_bind(struct udevice *bus)
  47 {
  48         /*
  49          * Scan the device tree for devices
  50          *
  51          * Before relocation, only bind devices marked for pre-relocation
  52          * use.
  53          */
  54         return dm_scan_fdt_node(bus, gd->fdt_blob, bus->of_offset,
  55                                 gd->flags & GD_FLG_RELOC ? false : true);
  56 }
  57
  58 UCLASS_DRIVER(pch) = {
  59         .id             = UCLASS_PCH,
  60         .name           = "pch",
  61         .post_bind      = pch_uclass_post_bind,
  62 };