u-boot/arch/arm/lib/bootm-fdt.c
Michal Simek e2f88dfd2d libfdt: Introduce new ARCH_FIXUP_FDT option
Add new Kconfig option to disable arch_fixup_fdt() calls for cases where
U-Boot shouldn't update memory setup in DTB file.
One example of usage of this option is to boot OS with different memory
setup than U-Boot use.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Simon Glass <sjg@chromium.org>
2016-07-31 19:37:08 -06:00

64 lines
1.4 KiB
C

/*
* Copyright (c) 2013, Google Inc.
*
* Copyright (C) 2011
* Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de>
* - Added prep subcommand support
* - Reorganized source - modeled after powerpc version
*
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Marius Groeger <mgroeger@sysgo.de>
*
* Copyright (C) 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl)
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <fdt_support.h>
#ifdef CONFIG_ARMV7_NONSEC
#include <asm/armv7.h>
#endif
#include <asm/psci.h>
#include <asm/spin_table.h>
DECLARE_GLOBAL_DATA_PTR;
#ifdef CONFIG_ARCH_FIXUP_FDT
int arch_fixup_fdt(void *blob)
{
bd_t *bd = gd->bd;
int bank, ret;
u64 start[CONFIG_NR_DRAM_BANKS];
u64 size[CONFIG_NR_DRAM_BANKS];
for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) {
start[bank] = bd->bi_dram[bank].start;
size[bank] = bd->bi_dram[bank].size;
#ifdef CONFIG_ARMV7_NONSEC
ret = armv7_apply_memory_carveout(&start[bank], &size[bank]);
if (ret)
return ret;
#endif
}
ret = fdt_fixup_memory_banks(blob, start, size, CONFIG_NR_DRAM_BANKS);
if (ret)
return ret;
#ifdef CONFIG_ARMV8_SPIN_TABLE
ret = spin_table_update_dt(blob);
if (ret)
return ret;
#endif
#if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_ARMV8_PSCI)
ret = psci_update_dt(blob);
if (ret)
return ret;
#endif
return 0;
}
#endif