drivers/smem/sandbox_smem.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (c) 2018 Ramon Fried <ramon.fried@gmail.com>
   4  */
   5
   6 #include <common.h>
   7 #include <dm.h>
   8 #include <errno.h>
   9 #include <smem.h>
  10 #include <asm/test.h>
  11
  12 static int sandbox_smem_alloc(unsigned int host,
  13                 unsigned int item, size_t size)
  14 {
  15         return 0;
  16 }
  17
  18 static void *sandbox_smem_get(unsigned int host,
  19                 unsigned int item, size_t *size)
  20 {
  21         return NULL;
  22 }
  23
  24 static int sandbox_smem_get_free_space(unsigned int host)
  25 {
  26         return 0;
  27 }
  28
  29 static const struct smem_ops sandbox_smem_ops = {
  30         .alloc  = sandbox_smem_alloc,
  31         .get    = sandbox_smem_get,
  32         .get_free_space = sandbox_smem_get_free_space,
  33 };
  34
  35 static const struct udevice_id sandbox_smem_ids[] = {
  36         { .compatible = "sandbox,smem" },
  37         { }
  38 };
  39
  40 U_BOOT_DRIVER(smem_sandbox) = {
  41         .name           = "smem_sandbox",
  42         .id             = UCLASS_SMEM,
  43         .of_match       = sandbox_smem_ids,
  44         .ops            = &sandbox_smem_ops,
  45 };