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mpc85xx: watchdog initialisation added

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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>
This commit is contained in:
Boschung, Rainer 2014-06-03 09:05:14 +02:00 committed by York Sun
parent 60b295672d
commit 0f8062b25b
2 changed files with 12 additions and 0 deletions
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8
arch/powerpc/cpu/mpc85xx/cpu.c
View File

@ -310,6 +310,14 @@ __weak unsigned long get_tbclk (void)
#if defined(CONFIG_WATCHDOG) #if defined(CONFIG_WATCHDOG)
#define WATCHDOG_MASK (TCR_WP(63) | TCR_WRC(3) | TCR_WIE)
void
init_85xx_watchdog(void)
{
mtspr(SPRN_TCR, (mfspr(SPRN_TCR) & ~WATCHDOG_MASK) |
TCR_WP(CONFIG_WATCHDOG_PRESC) | TCR_WRC(CONFIG_WATCHDOG_RC));
}
void void
reset_85xx_watchdog(void) reset_85xx_watchdog(void)
{ {

4
include/watchdog.h
View File

@ -95,4 +95,8 @@ int init_func_watchdog_reset(void);
#if defined(CONFIG_HW_WATCHDOG) && !defined(__ASSEMBLY__) #if defined(CONFIG_HW_WATCHDOG) && !defined(__ASSEMBLY__)
void hw_watchdog_init(void); void hw_watchdog_init(void);
#endif #endif
#if defined(CONFIG_MPC85xx) && !defined(__ASSEMBLY__)
void init_85xx_watchdog(void);
#endif
#endif /* _WATCHDOG_H_ */ #endif /* _WATCHDOG_H_ */