mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-15 01:17:39 +00:00
2b5fdd07c5
Signed-off-by: Marek Vasut <marex@denx.de> Cc: David Müller <d.mueller@elsoft.ch> Cc: Wolfgang Denk <wd@denx.de> Cc: Albert Aribaud <albert.u.boot@aribaud.net> Cc: U-Boot DM <u-boot-dm@lists.denx.de> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
59 lines
1.6 KiB
C
59 lines
1.6 KiB
C
/*
|
|
* Copyright (C) 2012 Samsung Electronics
|
|
* Minkyu Kang <mk7.kang@samsung.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
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <asm/io.h>
|
|
#include <asm/arch/watchdog.h>
|
|
|
|
#define PRESCALER_VAL 255
|
|
|
|
void wdt_stop(void)
|
|
{
|
|
struct s5p_watchdog *wdt =
|
|
(struct s5p_watchdog *)samsung_get_base_watchdog();
|
|
unsigned int wtcon;
|
|
|
|
wtcon = readl(&wdt->wtcon);
|
|
wtcon &= ~(WTCON_EN | WTCON_INT | WTCON_RESET);
|
|
|
|
writel(wtcon, &wdt->wtcon);
|
|
}
|
|
|
|
void wdt_start(unsigned int timeout)
|
|
{
|
|
struct s5p_watchdog *wdt =
|
|
(struct s5p_watchdog *)samsung_get_base_watchdog();
|
|
unsigned int wtcon;
|
|
|
|
wdt_stop();
|
|
|
|
wtcon = readl(&wdt->wtcon);
|
|
wtcon |= (WTCON_EN | WTCON_CLK(WTCON_CLK_128));
|
|
wtcon &= ~WTCON_INT;
|
|
wtcon |= WTCON_RESET;
|
|
wtcon |= WTCON_PRESCALER(PRESCALER_VAL);
|
|
|
|
writel(timeout, &wdt->wtdat);
|
|
writel(timeout, &wdt->wtcnt);
|
|
writel(wtcon, &wdt->wtcon);
|
|
}
|