From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shawn Guo Subject: Re: [PATCH v2 1/2] ARM: imx6: disable deeper idle states when FEC is active w/o HW workaround Date: Sat, 11 Jun 2016 17:04:38 +0800 Message-ID: <20160611090438.GG20243@tiger> References: <1464971480-9203-1-git-send-email-l.stach@pengutronix.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Fugang Duan , devicetree@vger.kernel.org, netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de, patchwork-lst@pengutronix.de To: Lucas Stach Return-path: Received: from mail.kernel.org ([198.145.29.136]:34474 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750929AbcFKJFU (ORCPT ); Sat, 11 Jun 2016 05:05:20 -0400 Content-Disposition: inline In-Reply-To: <1464971480-9203-1-git-send-email-l.stach@pengutronix.de> Sender: netdev-owner@vger.kernel.org List-ID: On Fri, Jun 03, 2016 at 06:31:19PM +0200, Lucas Stach wrote: > The i.MX6 Q/DL has an erratum (ERR006687) that prevents the FEC from > waking the CPUs when they are in wait(unclocked) state. As the hardware > workaround isn't applicable to all boards, disable the deeper idle state > when the workaround isn't present and the FEC is in use. > > This allows to safely run a kernel with CPUidle enabled on all i.MX6 > boards. > > Signed-off-by: Lucas Stach > Acked-by: David S. Miller (for network changes) Applied both, thanks.