From 0643e6f26bd36cb4459ebc2a70d0bca3855f814c Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Fri, 22 Nov 2013 15:29:38 +0100 Subject: [PATCH] zynq: timer: Fix hangs if network activity attempted after about one hour Cortex-A9 MPCore TRM' from ARM (ARM DDI 0407G ID072711) describes in the section 4.1.1 how this value calculation should be done. This patch fixes the problem if network activity such as ping or tftp is attempted after u-boot has been idle for an hour, it hangs, and cannot control-C out of it. Signed-off-by: Uday Hegde Signed-off-by: Michal Simek --- arch/arm/cpu/armv7/zynq/timer.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/cpu/armv7/zynq/timer.c b/arch/arm/cpu/armv7/zynq/timer.c index 544da17dcd8..aadc6586301 100644 --- a/arch/arm/cpu/armv7/zynq/timer.c +++ b/arch/arm/cpu/armv7/zynq/timer.c @@ -56,7 +56,7 @@ int timer_init(void) (TIMER_PRESCALE << SCUTIMER_CONTROL_PRESCALER_SHIFT) | SCUTIMER_CONTROL_ENABLE_MASK; - gd->arch.timer_rate_hz = (gd->cpu_clk / 2) / TIMER_PRESCALE; + gd->arch.timer_rate_hz = (gd->cpu_clk / 2) / (TIMER_PRESCALE + 1); /* Load the timer counter register */ writel(0xFFFFFFFF, &timer_base->load); @@ -93,7 +93,7 @@ ulong get_timer_masked(void) gd->arch.tbl += gd->arch.lastinc - now; } else { /* We have an overflow ... */ - gd->arch.tbl += gd->arch.lastinc + TIMER_LOAD_VAL - now; + gd->arch.tbl += gd->arch.lastinc + TIMER_LOAD_VAL - now + 1; } gd->arch.lastinc = now; -- 2.47.3