forked from Minki/linux
fb64c2446b
This updates m8xx_wdt as follows: 1) Remove now obsolete fpos check in the write() function. The driver is currently non functional due to this bug. 2) Use in/out macros for register access. 3) Allows m8xx_wdt to use a kernel timer instead of the builtin RTC/PIT for keep-alive trigger (which is responsible for servicing the watchdog until an userspace application takes over). For instance Cyclades PRxK boards (MPC 855T based) have a non-functional internal RTC/PIT unit. Behaviour for boards with RTC/PIT is unchaged. 4) The last change required moving the RTCSC register setting code to a weak function which can be overriden by board specific files. Otherwise the timer init code trashes the register making it impossible for m8xx_wdt to detect the situation. Signed-off-by: Marcelo Tosatti <marcelo.tosatti@cyclades.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
21 lines
634 B
C
21 lines
634 B
C
/*
|
|
* Author: Florian Schirmer <jolt@tuxbox.org>
|
|
*
|
|
* 2002 (c) Florian Schirmer <jolt@tuxbox.org> This file is licensed under
|
|
* the terms of the GNU General Public License version 2. This program
|
|
* is licensed "as is" without any warranty of any kind, whether express
|
|
* or implied.
|
|
*/
|
|
#ifndef _PPC_SYSLIB_M8XX_WDT_H
|
|
#define _PPC_SYSLIB_M8XX_WDT_H
|
|
|
|
extern int m8xx_has_internal_rtc;
|
|
|
|
extern void m8xx_wdt_handler_install(bd_t * binfo);
|
|
extern int m8xx_wdt_get_timeout(void);
|
|
extern void m8xx_wdt_reset(void);
|
|
extern void m8xx_wdt_install_timer(void);
|
|
extern void m8xx_wdt_stop_timer(void);
|
|
|
|
#endif /* _PPC_SYSLIB_M8XX_WDT_H */
|