upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
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u-boot/arch/arm/cpu/armv7/socfpga/spl.c

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/*
* Copyright (C) 2012 Altera Corporation <www.altera.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <common.h>
#include <asm/io.h>
#include <asm/u-boot.h>
#include <asm/utils.h>
#include <version.h>
#include <image.h>
#include <asm/arch/reset_manager.h>
#include <spl.h>
DECLARE_GLOBAL_DATA_PTR;
u32 spl_boot_device(void)
{
return BOOT_DEVICE_RAM;
}
/*
* Board initialization after bss clearance
*/
void spl_board_init(void)
{
/* de-assert reset for peripherals and bridges based on handoff */
reset_deassert_peripherals_handoff();
/* enable console uart printing */
preloader_console_init();
}