TCR watchdog bit are overwritten when dec interrupt is enabled. This has been fixed with this patch.
Signed-off-by: Rainer Boschung rainer.boschung@keymile.com --- arch/powerpc/cpu/mpc85xx/interrupts.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
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 */