mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-14 08:57:58 +00:00
7682a99826
Various files are needlessly rebuilt every time due to the version and build time changing. As version.h is not actually needed, remove the include. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Albert Aribaud <albert.u.boot@aribaud.net> Cc: Stefano Babic <sbabic@denx.de> Cc: Minkyu Kang <mk7.kang@samsung.com> Cc: Marek Vasut <marex@denx.de> Cc: Tom Warren <twarren@nvidia.com> Cc: Michal Simek <monstr@monstr.eu> Cc: Macpaul Lin <macpaul@andestech.com> Cc: Wolfgang Denk <wd@denx.de> Cc: York Sun <yorksun@freescale.com> Cc: Stefan Roese <sr@denx.de> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Cc: Simon Glass <sjg@chromium.org> Cc: Philippe Reynes <tremyfr@yahoo.fr> Cc: Eric Jarrige <eric.jarrige@armadeus.org> Cc: "David Müller" <d.mueller@elsoft.ch> Cc: Phil Edworthy <phil.edworthy@renesas.com> Cc: Robert Baldyga <r.baldyga@samsung.com> Cc: Torsten Koschorrek <koschorrek@synertronixx.de> Cc: Anatolij Gustschin <agust@denx.de> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Łukasz Majewski <l.majewski@samsung.com>
96 lines
2.7 KiB
ArmAsm
96 lines
2.7 KiB
ArmAsm
/*
|
|
* armboot - Startup Code for ARM926EJS CPU-core
|
|
*
|
|
* Copyright (c) 2003 Texas Instruments
|
|
*
|
|
* ----- Adapted for OMAP1610 OMAP730 from ARM925t code ------
|
|
*
|
|
* Copyright (c) 2001 Marius Groger <mag@sysgo.de>
|
|
* Copyright (c) 2002 Alex Zupke <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>
|
|
* Copyright (c) 2010 Albert Aribaud <albert.u.boot@aribaud.net>
|
|
*
|
|
* Change to support call back into iMX28 bootrom
|
|
* Copyright (c) 2011 Marek Vasut <marek.vasut@gmail.com>
|
|
* on behalf of DENX Software Engineering GmbH
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <asm-offsets.h>
|
|
#include <config.h>
|
|
#include <common.h>
|
|
|
|
/*
|
|
*************************************************************************
|
|
*
|
|
* Startup Code (reset vector)
|
|
*
|
|
* do important init only if we don't start from memory!
|
|
* setup Memory and board specific bits prior to relocation.
|
|
* relocate armboot to ram
|
|
* setup stack
|
|
*
|
|
*************************************************************************
|
|
*/
|
|
|
|
.globl reset
|
|
reset:
|
|
/*
|
|
* If the CPU is configured in "Wait JTAG connection mode", the stack
|
|
* pointer is not configured and is zero. This will cause crash when
|
|
* trying to push data onto stack right below here. Load the SP and make
|
|
* it point to the end of OCRAM if the SP is zero.
|
|
*/
|
|
cmp sp, #0x00000000
|
|
ldreq sp, =CONFIG_SYS_INIT_SP_ADDR
|
|
|
|
/*
|
|
* Store all registers on old stack pointer, this will allow us later to
|
|
* return to the BootROM and let the BootROM load U-Boot into RAM.
|
|
*
|
|
* WARNING: Register r0 and r1 are used by the BootROM to pass data
|
|
* to the called code. Register r0 will contain arbitrary
|
|
* data that are set in the BootStream. In case this code
|
|
* was started with CALL instruction, register r1 will contain
|
|
* pointer to the return value this function can then set.
|
|
* The code below MUST NOT CHANGE register r0 and r1 !
|
|
*/
|
|
push {r0-r12,r14}
|
|
|
|
/* Save control register c1 */
|
|
mrc p15, 0, r2, c1, c0, 0
|
|
push {r2}
|
|
|
|
/* Set the cpu to SVC32 mode and store old CPSR register content. */
|
|
mrs r2, cpsr
|
|
push {r2}
|
|
bic r2, r2, #0x1f
|
|
orr r2, r2, #0xd3
|
|
msr cpsr, r2
|
|
|
|
bl board_init_ll
|
|
|
|
/* Restore BootROM's CPU mode (especially FIQ). */
|
|
pop {r2}
|
|
msr cpsr,r2
|
|
|
|
/*
|
|
* Restore c1 register. Especially set exception vector location
|
|
* back to BootROM space which is required by bootrom for USB boot.
|
|
*/
|
|
pop {r2}
|
|
mcr p15, 0, r2, c1, c0, 0
|
|
|
|
pop {r0-r12,r14}
|
|
|
|
/*
|
|
* In case this code was started by the CALL instruction, the register
|
|
* r0 is examined by the BootROM after this code returns. The value in
|
|
* r0 must be set to 0 to indicate successful return.
|
|
*/
|
|
mov r0, #0
|
|
|
|
bx lr
|