board/sandbox/sandbox/sandbox.c

   1 /*
   2  * Copyright (c) 2011 The Chromium OS Authors.
   3  * SPDX-License-Identifier:     GPL-2.0+
   4  */
   5
   6 #include <common.h>
   7 #include <cros_ec.h>
   8 #include <dm.h>
   9 #include <os.h>
  10 #include <asm/u-boot-sandbox.h>
  11
  12 /*
  13  * Pointer to initial global data area
  14  *
  15  * Here we initialize it.
  16  */
  17 gd_t *gd;
  18
  19 /* Add a simple GPIO device */
  20 U_BOOT_DEVICE(gpio_sandbox) = {
  21         .name = "gpio_sandbox",
  22 };
  23
  24 void flush_cache(unsigned long start, unsigned long size)
  25 {
  26 }
  27
  28 unsigned long timer_read_counter(void)
  29 {
  30         return os_get_nsec() / 1000;
  31 }
  32
  33 int dram_init(void)
  34 {
  35         gd->ram_size = CONFIG_SYS_SDRAM_SIZE;
  36         return 0;
  37 }
  38
  39 #ifdef CONFIG_BOARD_EARLY_INIT_F
  40 int board_early_init_f(void)
  41 {
  42 #ifdef CONFIG_VIDEO_SANDBOX_SDL
  43         int ret;
  44
  45         ret = sandbox_lcd_sdl_early_init();
  46         if (ret) {
  47                 puts("Could not init sandbox LCD emulation\n");
  48                 return ret;
  49         }
  50 #endif
  51
  52         return 0;
  53 }
  54 #endif
  55
  56 int arch_early_init_r(void)
  57 {
  58 #ifdef CONFIG_CROS_EC
  59         if (cros_ec_board_init()) {
  60                 printf("%s: Failed to init EC\n", __func__);
  61                 return 0;
  62         }
  63 #endif
  64
  65         return 0;
  66 }
  67
  68 #ifdef CONFIG_BOARD_LATE_INIT
  69 int board_late_init(void)
  70 {
  71         if (cros_ec_get_error()) {
  72                 /* Force console on */
  73                 gd->flags &= ~GD_FLG_SILENT;
  74
  75                 printf("cros-ec communications failure %d\n",
  76                        cros_ec_get_error());
  77                 puts("\nPlease reset with Power+Refresh\n\n");
  78                 panic("Cannot init cros-ec device");
  79                 return -1;
  80         }
  81         return 0;
  82 }
  83 #endif