linux/arch/arm/mach-pxa/mioa701_bootresume.S
Thomas Gleixner dbf5ebee09 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 429
Based on 1 normalized pattern(s):

  this code is licenced under the gplv2

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 1 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Armijn Hemel <armijn@tjaldur.nl>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531190114.383521217@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:37:16 +02:00

39 lines
961 B
ArmAsm

/* SPDX-License-Identifier: GPL-2.0-only */
/* Bootloader to resume MIO A701
*
* 2007-1-12 Robert Jarzmik
*/
#include <linux/linkage.h>
#include <asm/assembler.h>
/*
* Note: Yes, part of the following code is located into the .data section.
* This is to allow jumpaddr to be accessed with a relative load
* while we can't rely on any MMU translation. We could have put
* sleep_save_sp in the .text section as well, but some setups might
* insist on it to be truly read-only.
*/
.data
.align 2
ENTRY(mioa701_bootstrap)
0:
b 1f
ENTRY(mioa701_jumpaddr)
.word 0x40f00008 @ PSPR in no-MMU mode
1:
mov r0, #0xa0000000 @ Don't suppose memory access works
orr r0, r0, #0x00200000 @ even if it's supposed to
orr r0, r0, #0x0000b000
mov r1, #0
str r1, [r0] @ Early disable resume for next boot
ldr r0, mioa701_jumpaddr @ (Murphy's Law)
ldr r0, [r0]
ret r0
2:
ENTRY(mioa701_bootstrap_lg)
.data
.align 2
.word 2b-0b