arch/sandbox/cpu/spl.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (c) 2016 Google, Inc
   4  */
   5
   6 #include <common.h>
   7 #include <dm.h>
   8 #include <os.h>
   9 #include <spl.h>
  10 #include <asm/spl.h>
  11 #include <asm/state.h>
  12
  13 DECLARE_GLOBAL_DATA_PTR;
  14
  15 void board_init_f(ulong flag)
  16 {
  17         struct sandbox_state *state = state_get_current();
  18
  19         gd->arch.ram_buf = state->ram_buf;
  20         gd->ram_size = state->ram_size;
  21 }
  22
  23 u32 spl_boot_device(void)
  24 {
  25         return BOOT_DEVICE_BOARD;
  26 }
  27
  28 static int spl_board_load_image(struct spl_image_info *spl_image,
  29                                 struct spl_boot_device *bootdev)
  30 {
  31         char fname[256];
  32         int ret;
  33
  34         ret = os_find_u_boot(fname, sizeof(fname));
  35         if (ret) {
  36                 printf("(%s not found, error %d)\n", fname, ret);
  37                 return ret;
  38         }
  39
  40         /* Set up spl_image to boot from jump_to_image_no_args() */
  41         spl_image->arg = strdup(fname);
  42         if (!spl_image->arg)
  43                 return log_msg_ret("Setup exec filename", -ENOMEM);
  44
  45         return 0;
  46 }
  47 SPL_LOAD_IMAGE_METHOD("sandbox", 0, BOOT_DEVICE_BOARD, spl_board_load_image);
  48
  49 void spl_board_init(void)
  50 {
  51         struct sandbox_state *state = state_get_current();
  52         struct udevice *dev;
  53
  54         preloader_console_init();
  55         if (state->show_of_platdata) {
  56                 /*
  57                  * Scan all the devices so that we can output their platform
  58                  * data. See sandbox_spl_probe().
  59                  */
  60                 printf("Scanning misc devices\n");
  61                 for (uclass_first_device(UCLASS_MISC, &dev);
  62                      dev;
  63                      uclass_next_device(&dev))
  64                         ;
  65         }
  66 }
  67
  68 void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
  69 {
  70         const char *fname = spl_image->arg;
  71
  72         os_fd_restore();
  73         os_spl_to_uboot(fname);
  74         hang();
  75 }