u-boot/arch/nds32/cpu/n1213/ag101/cpu.c
Macpaul Lin 8d732840ba nds32: split common cache access from cpu into lib
This commit does the following updates.
1. Split the common cache access from cpu.c into lib folder.
2. Rename the following cache api to adapt common.h
 - dcache_flush_rang -> flush_dcache_rang
 - icache_inval_range -> invalidate_icache_range
3. Add invalidate_dcache_range

Signed-off-by: Macpaul Lin <macpaul@gmail.com>
2012-07-20 23:55:52 +08:00

84 lines
2.2 KiB
C

/*
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Marius Groeger <mgroeger@sysgo.de>
*
* (C) Copyright 2002
* Gary Jennejohn, DENX Software Engineering, <gj@denx.de>
*
* Copyright (C) 2011 Andes Technology Corporation
* Shawn Lin, Andes Technology Corporation <nobuhiro@andestech.com>
* Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/* CPU specific code */
#include <common.h>
#include <command.h>
#include <watchdog.h>
#include <asm/cache.h>
#include <faraday/ftwdt010_wdt.h>
/*
* cleanup_before_linux() is called just before we call linux
* it prepares the processor for linux
*
* we disable interrupt and caches.
*/
int cleanup_before_linux(void)
{
disable_interrupts();
#ifdef CONFIG_MMU
/* turn off I/D-cache */
icache_disable();
dcache_disable();
/* flush I/D-cache */
invalidate_icac();
invalidate_dcac();
#endif
return 0;
}
int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
disable_interrupts();
/*
* reset to the base addr of andesboot.
* currently no ROM loader at addr 0.
* do not use reset_cpu(0);
*/
#ifdef CONFIG_FTWDT010_WATCHDOG
/*
* workaround: if we use CONFIG_HW_WATCHDOG with ftwdt010, will lead
* automatic hardware reset when booting Linux.
* Please do not use CONFIG_HW_WATCHDOG and WATCHDOG_RESET() here.
*/
ftwdt010_wdt_reset();
while (1)
;
#endif /* CONFIG_FTWDT010_WATCHDOG */
/*NOTREACHED*/
}