diff options
author | Stefan Reinauer <reinauer@chromium.org> | 2013-02-14 16:35:47 -0800 |
---|---|---|
committer | Stefan Reinauer <stefan.reinauer@coreboot.org> | 2013-02-15 02:11:34 +0100 |
commit | 5dbf689b62367f5386441cdc35434f14b39ac17b (patch) | |
tree | 5329f24010efbe3487fb7379e2cc1a577ef8ba0f /src/cpu/samsung/exynos5-common/wdt.c | |
parent | 7512e4593ed535bdd1bc33a91dfb769566146a39 (diff) |
Exynos5: Drop S5P directory and merge files
s5p-common mostly contained duplicate files, drop the whole directory
and merge the few pieces that we are using into exynos5-common.
Change-Id: I5f18e8a6d2379d719ab6bbbf817fe15bda70d17f
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/2405
Tested-by: build bot (Jenkins)
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Diffstat (limited to 'src/cpu/samsung/exynos5-common/wdt.c')
-rw-r--r-- | src/cpu/samsung/exynos5-common/wdt.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/src/cpu/samsung/exynos5-common/wdt.c b/src/cpu/samsung/exynos5-common/wdt.c new file mode 100644 index 0000000000..94acc1e4ba --- /dev/null +++ b/src/cpu/samsung/exynos5-common/wdt.c @@ -0,0 +1,59 @@ +/* + * 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); +} |