drivers/ram/sandbox_ram.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 <errno.h>
  11 #include <ram.h>
  12 #include <asm/test.h>
  13
  14 DECLARE_GLOBAL_DATA_PTR;
  15
  16 static int sandbox_get_info(struct udevice *dev, struct ram_info *info)
  17 {
  18         info->base = 0;
  19         info->size = gd->ram_size;
  20
  21         return 0;
  22 }
  23
  24 static const struct ram_ops sandbox_ram_ops = {
  25         .get_info       = sandbox_get_info,
  26 };
  27
  28 static const struct udevice_id sandbox_ram_ids[] = {
  29         { .compatible = "sandbox,ram" },
  30         { }
  31 };
  32
  33 U_BOOT_DRIVER(warm_ram_sandbox) = {
  34         .name           = "ram_sandbox",
  35         .id             = UCLASS_RAM,
  36         .of_match       = sandbox_ram_ids,
  37         .ops            = &sandbox_ram_ops,
  38 };