[U-Boot] [PATCH 4/4] ARM: tegra: simplify halt_avp()

Stephen Warren swarren at wwwdotorg.org
Thu Feb 27 18:19:48 CET 2014


On 02/03/2014 02:03 PM, Stephen Warren wrote:
> From: Stephen Warren <swarren at nvidia.com>
> 
> In order to completely halt the AVP processor, we should simply write
> FLOW_MODE_STOP without any extra options that allow wakeup. Amend the
> code to do this.
> 
> I believe that enabling FIQ_1 and IRQ_1 allow the CPU to be awoken by
> interrupts. We don't want this; if later SW wishes to use the AVP, it
> should be reset and booted from scratch.
> 
> Related, the bits that were previously IRQ_1 and FIQ_1 have a slightly
> different definition starting with Tegra114, so the values we're
> writing don't entirely make sense there anyway.

Tom, does this series look good? I'd really like to get these fixes into
2014.04 so that it can boot on our simulator without any local patches.
Thanks.


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