mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-11 05:42:58 +00:00
0ae7653128
Relocation code based on a patch by Scott Wood, which is: Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: David Feng <fenghua@phytium.com.cn>
43 lines
847 B
C
43 lines
847 B
C
/*
|
|
* (C) Copyright 2008 Texas Insturments
|
|
*
|
|
* (C) Copyright 2002
|
|
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
|
|
* Marius Groeger <mgroeger@sysgo.de>
|
|
*
|
|
* (C) Copyright 2002
|
|
* Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <asm/system.h>
|
|
#include <linux/compiler.h>
|
|
|
|
int cleanup_before_linux(void)
|
|
{
|
|
/*
|
|
* this function is called just before we call linux
|
|
* it prepares the processor for linux
|
|
*
|
|
* disable interrupt and turn off caches etc ...
|
|
*/
|
|
disable_interrupts();
|
|
|
|
/*
|
|
* Turn off I-cache and invalidate it
|
|
*/
|
|
icache_disable();
|
|
invalidate_icache_all();
|
|
|
|
/*
|
|
* turn off D-cache
|
|
* dcache_disable() in turn flushes the d-cache and disables MMU
|
|
*/
|
|
dcache_disable();
|
|
invalidate_dcache_all();
|
|
|
|
return 0;
|
|
}
|