83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
43 lines
877 B
C
43 lines
877 B
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2012 Samsung Electronics
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* Minkyu Kang <mk7.kang@samsung.com>
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <asm/arch/watchdog.h>
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#define PRESCALER_VAL 255
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void wdt_stop(void)
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{
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struct s5p_watchdog *wdt =
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(struct s5p_watchdog *)samsung_get_base_watchdog();
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unsigned int wtcon;
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wtcon = readl(&wdt->wtcon);
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wtcon &= ~(WTCON_EN | WTCON_INT | WTCON_RESET);
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writel(wtcon, &wdt->wtcon);
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}
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void wdt_start(unsigned int timeout)
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{
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struct s5p_watchdog *wdt =
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(struct s5p_watchdog *)samsung_get_base_watchdog();
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unsigned int wtcon;
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wdt_stop();
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wtcon = readl(&wdt->wtcon);
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wtcon |= (WTCON_EN | WTCON_CLK(WTCON_CLK_128));
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wtcon &= ~WTCON_INT;
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wtcon |= WTCON_RESET;
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wtcon |= WTCON_PRESCALER(PRESCALER_VAL);
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writel(timeout, &wdt->wtdat);
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writel(timeout, &wdt->wtcnt);
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writel(wtcon, &wdt->wtcon);
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}
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