arch/microblaze/cpu/spl.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2013 - 2014 Xilinx, Inc
   4  *
   5  * Michal Simek <michal.simek@xilinx.com>
   6  */
   7
   8 #include <common.h>
   9 #include <image.h>
  10 #include <spl.h>
  11 #include <asm/io.h>
  12 #include <asm/u-boot.h>
  13
  14 bool boot_linux;
  15
  16 u32 spl_boot_device(void)
  17 {
  18         return BOOT_DEVICE_NOR;
  19 }
  20
  21 /* Board initialization after bss clearance */
  22 void spl_board_init(void)
  23 {
  24         /* enable console uart printing */
  25         preloader_console_init();
  26 }
  27
  28 #ifdef CONFIG_SPL_OS_BOOT
  29 void __noreturn jump_to_image_linux(struct spl_image_info *spl_image)
  30 {
  31         debug("Entering kernel arg pointer: 0x%p\n", spl_image->arg);
  32         typedef void (*image_entry_arg_t)(char *, ulong, ulong)
  33                 __attribute__ ((noreturn));
  34         image_entry_arg_t image_entry =
  35                 (image_entry_arg_t)spl_image->entry_point;
  36
  37         image_entry(NULL, 0, (ulong)spl_image->arg);
  38 }
  39 #endif /* CONFIG_SPL_OS_BOOT */
  40
  41 int spl_start_uboot(void)
  42 {
  43 #ifdef CONFIG_SPL_OS_BOOT
  44         if (boot_linux)
  45                 return 0;
  46 #endif
  47
  48         return 1;
  49 }