board/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/test.h>
  11 #include <asm/u-boot-sandbox.h>
  12
  13 /*
  14  * Pointer to initial global data area
  15  *
  16  * Here we initialize it.
  17  */
  18 gd_t *gd;
  19
  20 /* Add a simple GPIO device */
  21 U_BOOT_DEVICE(gpio_sandbox) = {
  22         .name = "gpio_sandbox",
  23 };
  24
  25 void flush_cache(unsigned long start, unsigned long size)
  26 {
  27 }
  28
  29 #ifndef CONFIG_TIMER
  30 /* system timer offset in ms */
  31 static unsigned long sandbox_timer_offset;
  32
  33 void sandbox_timer_add_offset(unsigned long offset)
  34 {
  35         sandbox_timer_offset += offset;
  36 }
  37
  38 unsigned long timer_read_counter(void)
  39 {
  40         return os_get_nsec() / 1000 + sandbox_timer_offset * 1000;
  41 }
  42 #endif
  43
  44 int dram_init(void)
  45 {
  46         gd->ram_size = CONFIG_SYS_SDRAM_SIZE;
  47         return 0;
  48 }
  49
  50 #ifdef CONFIG_BOARD_LATE_INIT
  51 int board_late_init(void)
  52 {
  53         if (cros_ec_get_error()) {
  54                 /* Force console on */
  55                 gd->flags &= ~GD_FLG_SILENT;
  56
  57                 printf("cros-ec communications failure %d\n",
  58                        cros_ec_get_error());
  59                 puts("\nPlease reset with Power+Refresh\n\n");
  60                 panic("Cannot init cros-ec device");
  61                 return -1;
  62         }
  63         return 0;
  64 }
  65 #endif