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/mach-versatile/reset.S

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/*
* armboot - Startup Code for ARM926EJS CPU-core
*
* Copyright (c) 2003 Texas Instruments
*
* ----- Adapted for OMAP1610 OMAP730 from ARM925t code ------
*
* Copyright (c) 2001 Marius Gröger <mag@sysgo.de>
* Copyright (c) 2002 Alex Züpke <azu@sysgo.de>
* Copyright (c) 2002 Gary Jennejohn <garyj@denx.de>
* Copyright (c) 2003 Richard Woodruff <r-woodruff2@ti.com>
* Copyright (c) 2003 Kshitij <kshitij@ti.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
.align 5
.globl reset_cpu
reset_cpu:
ldr r1, rstctl1 /* get clkm1 reset ctl */
mov r3, #0x0
strh r3, [r1] /* clear it */
mov r3, #0x8
strh r3, [r1] /* force dsp+arm reset */
_loop_forever:
b _loop_forever
rstctl1:
.word 0xfffece10