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u-boot/include/watchdog.h

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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>
2018-05-07 05:58:06 +08:00
/* SPDX-License-Identifier: GPL-2.0+ */
Initial revision
2002-03-09 05:31:05 +08:00
/*
* (C) Copyright 2001
* Erik Theisen, Wave 7 Optics, etheisen@mindspring.com.
*/
/*
* Watchdog functions and macros.
*/
#ifndef _WATCHDOG_H_
#define _WATCHDOG_H_
Declare watchdog functions in watchdog.h These functions are only available for powerpc and are not declared in a header file. We want to use the rest function in two places (board_f and board_r), so declare the functions in watchdog.h. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-05 22:39:42 +08:00
#if !defined(__ASSEMBLY__)
/*
* Reset the watchdog timer, always returns 0
*
* This function is here since it is shared between board_f() and board_r(),
* and the legacy arch/<arch>/board.c code.
*/
int init_func_watchdog_reset(void);
#endif
Drop use of CONFIG_SYS_GENERIC_BOARD in U-Boot This option is always enabled and is about to be removed. Drop references to it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Andreas Bießmann <andreas@biessmann.org>
2016-05-15 08:49:35 +08:00
#if defined(CONFIG_WATCHDOG) || defined(CONFIG_HW_WATCHDOG)
Declare watchdog functions in watchdog.h These functions are only available for powerpc and are not declared in a header file. We want to use the rest function in two places (board_f and board_r), so declare the functions in watchdog.h. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-05 22:39:42 +08:00
#define INIT_FUNC_WATCHDOG_INIT init_func_watchdog_init,
#define INIT_FUNC_WATCHDOG_RESET init_func_watchdog_reset,
#else
#define INIT_FUNC_WATCHDOG_INIT
#define INIT_FUNC_WATCHDOG_RESET
#endif
Initial revision
2002-03-09 05:31:05 +08:00
#if defined(CONFIG_HW_WATCHDOG) && defined(CONFIG_WATCHDOG)
# error "Configuration error: CONFIG_HW_WATCHDOG and CONFIG_WATCHDOG can't be used together."
#endif
/*
* Hardware watchdog
*/
#ifdef CONFIG_HW_WATCHDOG
#if defined(__ASSEMBLY__)
#define WATCHDOG_RESET bl hw_watchdog_reset
#else
extern void hw_watchdog_reset(void);
#define WATCHDOG_RESET hw_watchdog_reset
#endif /* __ASSEMBLY__ */
#else
/*
* Maybe a software watchdog?
*/
#if defined(CONFIG_WATCHDOG)
#if defined(__ASSEMBLY__)
#define WATCHDOG_RESET bl watchdog_reset
#else
watchdog: Handle SPL build with watchdog disabled This patch adds some checks, so that the watchdog can be enabled in main U-Boot proper but can be disabled in SPL. This will be used by some AT91SAM based boards, which might enable the watchdog in the main U-Boot proper and not in SPL. It will be enabled in SPL by default there, so no need to configure it there. This approach saves some space in SPL. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Heiko Schocher <hs@denx.de> Cc: Andreas Bießmann <andreas@biessmann.org> Cc: Eugen Hristev <eugen.hristev@microchip.com> Reviewed-by: Heiko Schocher <hs@denx.de> Tested on the taurus board: Tested-by: Heiko Schocher <hs@denx.de>
2019-04-02 16:57:18 +08:00
/* Don't require the watchdog to be enabled in SPL */
#if defined(CONFIG_SPL_BUILD) && \
Rename SPL_WATCHDOG_SUPPORT to SPL_WATCHDOG Rename this option so that CONFIG_IS_ENABLED can be used with it. Signed-off-by: Simon Glass <sjg@chromium.org>
2021-07-11 11:14:28 +08:00
!defined(CONFIG_SPL_WATCHDOG)
watchdog: Handle SPL build with watchdog disabled This patch adds some checks, so that the watchdog can be enabled in main U-Boot proper but can be disabled in SPL. This will be used by some AT91SAM based boards, which might enable the watchdog in the main U-Boot proper and not in SPL. It will be enabled in SPL by default there, so no need to configure it there. This approach saves some space in SPL. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Heiko Schocher <hs@denx.de> Cc: Andreas Bießmann <andreas@biessmann.org> Cc: Eugen Hristev <eugen.hristev@microchip.com> Reviewed-by: Heiko Schocher <hs@denx.de> Tested on the taurus board: Tested-by: Heiko Schocher <hs@denx.de>
2019-04-02 16:57:18 +08:00
#define WATCHDOG_RESET() {}
#else
extern void watchdog_reset(void);
Initial revision
2002-03-09 05:31:05 +08:00
watchdog: Handle SPL build with watchdog disabled This patch adds some checks, so that the watchdog can be enabled in main U-Boot proper but can be disabled in SPL. This will be used by some AT91SAM based boards, which might enable the watchdog in the main U-Boot proper and not in SPL. It will be enabled in SPL by default there, so no need to configure it there. This approach saves some space in SPL. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Heiko Schocher <hs@denx.de> Cc: Andreas Bießmann <andreas@biessmann.org> Cc: Eugen Hristev <eugen.hristev@microchip.com> Reviewed-by: Heiko Schocher <hs@denx.de> Tested on the taurus board: Tested-by: Heiko Schocher <hs@denx.de>
2019-04-02 16:57:18 +08:00
#define WATCHDOG_RESET watchdog_reset
#endif
Initial revision
2002-03-09 05:31:05 +08:00
#endif
#else
/*
* No hardware or software watchdog.
*/
#if defined(__ASSEMBLY__)
#define WATCHDOG_RESET /*XXX DO_NOT_DEL_THIS_COMMENT*/
#else
#define WATCHDOG_RESET() {}
#endif /* __ASSEMBLY__ */
#endif /* CONFIG_WATCHDOG && !__ASSEMBLY__ */
#endif /* CONFIG_HW_WATCHDOG */
/*
* Prototypes from $(CPU)/cpu.c.
*/
watchdog: omap_wdt: Disable DM watchdog support in SPL This patch disables DM watchdog support for SPL builds and uses the legacy omap watchdog driver on TI AM335x chipsets. The following build error is reported if DM watchdog support was enabled in SPL: CC spl/drivers/usb/gadget/rndis.o LD spl/drivers/usb/gadget/built-in.o LD spl/drivers/usb/musb-new/built-in.o LD spl/drivers/built-in.o LD spl/u-boot-spl arm-linux-ld.bfd: u-boot-spl section .u_boot_list will not fit in region .sram arm-linux-ld.bfd: region .sram overflowed by 440 bytes make[1]: *** [spl/u-boot-spl] Error 1 make: *** [spl/u-boot-spl] Error 2 Adjusted WATCHDOG_RESET macro accordingly. Earlier it was pointing to hw_watchdog_reset. Since CONFIG_WATCHDOG replaces CONFIG_HW_WATCHDOG, now WATCHDOG_RESET macro points to watchdog_reset. This watchdog_reset is not defined anywhere for am33xx/omap2 and needs to be defined. Fixed this by simply calling hw_watchdog_reset in watchdog_reset. Built and tested on AM335x device (BeagleboneBlack), compile tested for all other AM33xx/omap2 based boards. Signed-off-by: Suniel Mahesh <sunil.m@techveda.org> [trini: Fix watchdog.h logic] Signed-off-by: Tom Rini <trini@konsulko.com>
2019-08-01 00:24:07 +08:00
#if (defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)) && !defined(__ASSEMBLY__)
watchdog.h: Move hw_watchdog_init prototype to end, guard In commit abbab70 we added a prototype for hw_watchdog_init, in a Freescale i.MX watchdog driver. We did not however guard it with an __ASSEMBLY__ check and broke some platforms. Move this to the end of the file with other prototypes and guard it. Signed-off-by: Tom Rini <trini@ti.com>
2013-01-15 04:10:07 +08:00
void hw_watchdog_init(void);
#endif
mpc85xx: watchdog initialisation added Function to inititialize the cpu watchdog added. Signed-off-by: Rainer Boschung <rainer.boschung@keymile.com> [York Sun: Add prototype in watchdog.h] Reviewed-by: York Sun <yorksun@freescale.com>
2014-06-03 15:05:14 +08:00
#if defined(CONFIG_MPC85xx) && !defined(__ASSEMBLY__)
void init_85xx_watchdog(void);
#endif
Initial revision
2002-03-09 05:31:05 +08:00
#endif /* _WATCHDOG_H_ */
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