arch/arm/lib/bootm-fdt.c

   1 /*
   2  * Copyright (c) 2013, Google Inc.
   3  *
   4  * Copyright (C) 2011
   5  * Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de>
   6  *  - Added prep subcommand support
   7  *  - Reorganized source - modeled after powerpc version
   8  *
   9  * (C) Copyright 2002
  10  * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
  11  * Marius Groeger <mgroeger@sysgo.de>
  12  *
  13  * Copyright (C) 2001  Erik Mouw (J.A.K.Mouw@its.tudelft.nl)
  14  *
  15  * SPDX-License-Identifier:     GPL-2.0+
  16  */
  17
  18 #include <common.h>
  19 #include <fdt_support.h>
  20 #ifdef CONFIG_ARMV7_NONSEC
  21 #include <asm/armv7.h>
  22 #endif
  23 #include <asm/psci.h>
  24 #include <asm/spin_table.h>
  25
  26 DECLARE_GLOBAL_DATA_PTR;
  27
  28 #ifdef CONFIG_ARCH_FIXUP_FDT
  29 int arch_fixup_fdt(void *blob)
  30 {
  31         bd_t *bd = gd->bd;
  32         int bank, ret;
  33         u64 start[CONFIG_NR_DRAM_BANKS];
  34         u64 size[CONFIG_NR_DRAM_BANKS];
  35
  36         for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) {
  37                 start[bank] = bd->bi_dram[bank].start;
  38                 size[bank] = bd->bi_dram[bank].size;
  39 #ifdef CONFIG_ARMV7_NONSEC
  40                 ret = armv7_apply_memory_carveout(&start[bank], &size[bank]);
  41                 if (ret)
  42                         return ret;
  43 #endif
  44         }
  45
  46         ret = fdt_fixup_memory_banks(blob, start, size, CONFIG_NR_DRAM_BANKS);
  47         if (ret)
  48                 return ret;
  49
  50 #ifdef CONFIG_ARMV8_SPIN_TABLE
  51         ret = spin_table_update_dt(blob);
  52         if (ret)
  53                 return ret;
  54 #endif
  55
  56 #if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_ARMV8_PSCI)
  57         ret = psci_update_dt(blob);
  58         if (ret)
  59                 return ret;
  60 #endif
  61
  62         return 0;
  63 }
  64 #endif