u-boot/include/fsl_wdog.h

/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * (C) Copyright 2015 Freescale Semiconductor, Inc.
 */

struct watchdog_regs {
	u16	wcr;	/* Control */
	u16	wsr;	/* Service */
	u16	wrsr;	/* Reset Status */
};

#define WCR_WDZST	0x01
#define WCR_WDBG	0x02
#define WCR_WDE		0x04
#define WCR_WDT		0x08
#define WCR_SRS		0x10
#define WCR_WDA 	0x20
#define SET_WCR_WT(x)	(x << 8)
#define WCR_WT_MSK	SET_WCR_WT(0xFF)
SPDX: Convert all of our single license tags to Linux Kernel style 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> 2018-05-06 21:58:06 +00:00			`/* SPDX-License-Identifier: GPL-2.0+ */`
imx_watchdog: Add a header file for watchdog registers Create fsl_wdog.h to store the watchdog registers and bit fields. This can be useful when accesses to the watchdog block are made from other parts, such as arch/arm/ cpu code. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> 2015-10-03 17:20:59 +00:00			`/*`
			`* (C) Copyright 2015 Freescale Semiconductor, Inc.`
			`*/`

			`struct watchdog_regs {`
			`u16 wcr; /* Control */`
			`u16 wsr; /* Service */`
			`u16 wrsr; /* Reset Status */`
			`};`

			`#define WCR_WDZST 0x01`
			`#define WCR_WDBG 0x02`
			`#define WCR_WDE 0x04`
			`#define WCR_WDT 0x08`
			`#define WCR_SRS 0x10`
imx_watchdog: Do not assert WDOG_B on watchdog init Currently the driver asserts WDOG_B by clearing WCR_WDA bit when enabling the watchdog. Do not clear WCR_WDA. Signed-off-by: Ross Parker <rossjparker@gmail.com> Cc: Stefano Babic <sbabic@denx.de> 2016-08-02 08:08:07 +00:00			`#define WCR_WDA 0x20`
imx_watchdog: Add a header file for watchdog registers Create fsl_wdog.h to store the watchdog registers and bit fields. This can be useful when accesses to the watchdog block are made from other parts, such as arch/arm/ cpu code. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> 2015-10-03 17:20:59 +00:00			`#define SET_WCR_WT(x) (x << 8)`
imx_watchdog: always set minimal timeout in reset_cpu The problem is that timeout bits in WCR register were leaved unchanged. So previously set timeout value was applied and therefore 'reset' command takes any value up to two minutes, depending on previous watchdog settings, instead of minimal 0.5 seconds. Signed-off-by: Andrey Skvortsov <andrej.skvortzov@gmail.com> 2015-12-20 18:09:58 +00:00			`#define WCR_WT_MSK SET_WCR_WT(0xFF)`