diff options
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/cpu/mpc85xx/cpu.c | 8 | ||||
| -rw-r--r-- | arch/powerpc/cpu/mpc85xx/interrupts.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/processor.h | 5 | ||||
| -rw-r--r-- | arch/powerpc/lib/board.c | 3 |
4 files changed, 17 insertions, 1 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/cpu.c b/arch/powerpc/cpu/mpc85xx/cpu.c index 684d400..6274f92 100644 --- a/arch/powerpc/cpu/mpc85xx/cpu.c +++ b/arch/powerpc/cpu/mpc85xx/cpu.c @@ -310,6 +310,14 @@ __weak unsigned long get_tbclk (void) #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 reset_85xx_watchdog(void) { diff --git a/arch/powerpc/cpu/mpc85xx/interrupts.c b/arch/powerpc/cpu/mpc85xx/interrupts.c index a36a4af..daf46a9 100644 --- a/arch/powerpc/cpu/mpc85xx/interrupts.c +++ b/arch/powerpc/cpu/mpc85xx/interrupts.c @@ -42,7 +42,7 @@ int interrupt_init_cpu(unsigned int *decrementer_count) *decrementer_count = get_tbclk() / CONFIG_SYS_HZ; /* PIE is same as DIE, dec interrupt enable */ - mtspr(SPRN_TCR, TCR_PIE); + mtspr(SPRN_TCR, mfspr(SPRN_TCR) | TCR_PIE); #ifdef CONFIG_INTERRUPTS pic->iivpr1 = 0x810001; /* 50220 enable ecm interrupts */ diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h index 2445acd..1b98e0f 100644 --- a/arch/powerpc/include/asm/processor.h +++ b/arch/powerpc/include/asm/processor.h @@ -378,11 +378,16 @@ #else #define SPRN_TCR 0x154 /* Book E Timer Control Register */ #endif /* CONFIG_BOOKE */ +#ifdef CONFIG_E500MC +#define TCR_WP(x) (((64-x)&0x3)<<30)| \ + (((64-x)&0x3c)<<15) /* WDT Period 2^x clocks*/ +#else #define TCR_WP(x) (((x)&0x3)<<30) /* WDT Period */ #define WP_2_17 0 /* 2^17 clocks */ #define WP_2_21 1 /* 2^21 clocks */ #define WP_2_25 2 /* 2^25 clocks */ #define WP_2_29 3 /* 2^29 clocks */ +#endif /* CONFIG_E500 */ #define TCR_WRC(x) (((x)&0x3)<<28) /* WDT Reset Control */ #define WRC_NONE 0 /* No reset will occur */ #define WRC_CORE 1 /* Core reset will occur */ diff --git a/arch/powerpc/lib/board.c b/arch/powerpc/lib/board.c index 50eb820..0296205 100644 --- a/arch/powerpc/lib/board.c +++ b/arch/powerpc/lib/board.c @@ -226,6 +226,9 @@ static int init_func_spi(void) #if defined(CONFIG_WATCHDOG) int init_func_watchdog_init(void) { +#if defined(CONFIG_MPC85xx) + init_85xx_watchdog(); +#endif puts(" Watchdog enabled\n"); WATCHDOG_RESET(); return 0; |