u-boot/arch/arm/lib/bootm-fdt.c
B, Ravi 984a3c8777 spl: fdt: support for fdt fixup for falcon boot
Adding support for fdt fixup to update the
memory node in device tree for falcon boot.

This is needed for single stage or falcon
bootmode, to pass memory configuration to
kernel through DT memory node.

Signed-off-by: Ravi Babu <ravibabu@ti.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
2017-05-11 22:04:26 -04:00

68 lines
1.5 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;
int arch_fixup_fdt(void *blob)
{
int ret = 0;
#if defined(CONFIG_ARMV7_NONSEC) || defined(CONFIG_OF_LIBFDT)
bd_t *bd = gd->bd;
int bank;
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
}
#ifdef CONFIG_OF_LIBFDT
ret = fdt_fixup_memory_banks(blob, start, size, CONFIG_NR_DRAM_BANKS);
if (ret)
return ret;
#endif
#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) || \
defined(CONFIG_SEC_FIRMWARE_ARMV8_PSCI)
ret = psci_update_dt(blob);
if (ret)
return ret;
#endif
#endif
return 0;
}