From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933345AbdABQDN (ORCPT ); Mon, 2 Jan 2017 11:03:13 -0500 Received: from mail-wm0-f65.google.com ([74.125.82.65]:33874 "EHLO mail-wm0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933278AbdABQDJ (ORCPT ); Mon, 2 Jan 2017 11:03:09 -0500 Date: Mon, 2 Jan 2017 17:03:03 +0100 From: Richard Cochran To: Harini Katakam Cc: Rafal Ozieblo , Andrei Pistirica , "netdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "davem@davemloft.net" , "nicolas.ferre@atmel.com" , "harini.katakam@xilinx.com" , "punnaia@xilinx.com" , "michals@xilinx.com" , "anirudh@xilinx.com" , "boris.brezillon@free-electrons.com" , "alexandre.belloni@free-electrons.com" , "tbultel@pixelsurmer.com" Subject: Re: [RFC PATCH net-next v4 1/2] macb: Add 1588 support in Cadence GEM. Message-ID: <20170102160303.GC3609@localhost.localdomain> References: <1481720175-12703-1-git-send-email-andrei.pistirica@microchip.com> <20170102113155.GA16373@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jan 02, 2017 at 05:13:34PM +0530, Harini Katakam wrote: > From the revision history of Cadence spec, all versions starting > r1p02 have ability to include timestamp in descriptors. So why not add code to read the version, hm? > For previous versions the event register is the only option. And is it true that the regsiters do not latch the time stamp? If so, then the IP core is more than useless. Thanks, Richard