From 3345d18d5baad05807ecac36bc4125dbc74d288f Mon Sep 17 00:00:00 2001 From: "Boschung, Rainer" <Rainer.Boschung@keymile.com> Date: Tue, 3 Jun 2014 09:05:12 +0200 Subject: [PATCH] mpc85xx: fix interrupt init to not affect watchdog 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> Reviewed-by: York Sun <yorksun@freescale.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 a36a4af9da..daf46a9ba8 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 */ -- 2.39.5