arch/arm/cpu/armv8/fsl-layerscape/spl.c

   1 /*
   2  * Copyright 2014-2015 Freescale Semiconductor, Inc.
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <common.h>
   8 #include <spl.h>
   9 #include <asm/io.h>
  10 #include <fsl_ifc.h>
  11 #include <fsl_csu.h>
  12 #include <i2c.h>
  13
  14 DECLARE_GLOBAL_DATA_PTR;
  15
  16 u32 spl_boot_device(void)
  17 {
  18 #ifdef CONFIG_SPL_MMC_SUPPORT
  19         return BOOT_DEVICE_MMC1;
  20 #endif
  21 #ifdef CONFIG_SPL_NAND_SUPPORT
  22         return BOOT_DEVICE_NAND;
  23 #endif
  24         return 0;
  25 }
  26
  27 u32 spl_boot_mode(void)
  28 {
  29         switch (spl_boot_device()) {
  30         case BOOT_DEVICE_MMC1:
  31 #ifdef CONFIG_SPL_FAT_SUPPORT
  32                 return MMCSD_MODE_FS;
  33 #else
  34                 return MMCSD_MODE_RAW;
  35 #endif
  36         case BOOT_DEVICE_NAND:
  37                 return 0;
  38         default:
  39                 puts("spl: error: unsupported device\n");
  40                 hang();
  41         }
  42 }
  43
  44 #ifdef CONFIG_SPL_BUILD
  45 void board_init_f(ulong dummy)
  46 {
  47         /* Clear global data */
  48         memset((void *)gd, 0, sizeof(gd_t));
  49 #ifdef CONFIG_LS2080A
  50         arch_cpu_init();
  51 #endif
  52         board_early_init_f();
  53         timer_init();
  54 #ifdef CONFIG_LS2080A
  55         env_init();
  56 #endif
  57         get_clocks();
  58
  59         preloader_console_init();
  60
  61 #ifdef CONFIG_SPL_I2C_SUPPORT
  62         i2c_init_all();
  63 #endif
  64         dram_init();
  65
  66         /* Clear the BSS */
  67         memset(__bss_start, 0, __bss_end - __bss_start);
  68
  69 #ifdef CONFIG_LAYERSCAPE_NS_ACCESS
  70         enable_layerscape_ns_access();
  71 #endif
  72         board_init_r(NULL, 0);
  73 }
  74 #endif