forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
42 lines
877 B
42 lines
877 B
// SPDX-License-Identifier: GPL-2.0+ |
|
/* |
|
* Copyright (C) 2012 Samsung Electronics |
|
* Minkyu Kang <[email protected]> |
|
*/ |
|
|
|
#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); |
|
}
|
|
|