From 1ffbc51a0d00e52983c70aa7c8dbc7b621d6287d Mon Sep 17 00:00:00 2001 From: Andreas Larsson Date: Mon, 10 Jun 2013 08:53:28 +0200 Subject: sparc32, leon: Remove separate "ticker" timer for SMP This reduces the need from two timers to one timer. Moreover, without this patch, when the "ticker" timer triggers timer_cs_read via tick_periodic it reads the value of the usual timer it can get an wrapped timer value without timer_cs_internal_counter having been updated leading to the clock going backwards. This effectively hangs one cpu that gets stuck in update_wall_time with an offset slightly smaller than 0xffffffffffffffff. Signed-off-by: Andreas Larsson Signed-off-by: David S. Miller --- arch/sparc/include/asm/leon_amba.h | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/sparc/include/asm/leon_amba.h') diff --git a/arch/sparc/include/asm/leon_amba.h b/arch/sparc/include/asm/leon_amba.h index f3034eddf468..24ec48c3ff90 100644 --- a/arch/sparc/include/asm/leon_amba.h +++ b/arch/sparc/include/asm/leon_amba.h @@ -47,6 +47,7 @@ struct amba_prom_registers { #define LEON3_GPTIMER_LD 4 #define LEON3_GPTIMER_IRQEN 8 #define LEON3_GPTIMER_SEPIRQ 8 +#define LEON3_GPTIMER_TIMERS 0x7 #define LEON23_REG_TIMER_CONTROL_EN 0x00000001 /* 1 = enable counting */ /* 0 = hold scalar and counter */ -- cgit