From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753289Ab1IQKNh (ORCPT ); Sat, 17 Sep 2011 06:13:37 -0400 Received: from edu-smtp-01.edutel.nl ([88.159.1.175]:56983 "EHLO edu-smtp-01.edutel.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750830Ab1IQKNg (ORCPT ); Sat, 17 Sep 2011 06:13:36 -0400 X-Greylist: delayed 487 seconds by postgrey-1.27 at vger.kernel.org; Sat, 17 Sep 2011 06:13:35 EDT Message-ID: <4E7470E6.2000404@neli.hopto.org> Date: Sat, 17 Sep 2011 12:05:26 +0200 From: Micha Nelissen User-Agent: Mozilla-Thunderbird 2.0.0.22 (X11/20091109) MIME-Version: 1.0 To: Alexandre Bounine CC: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, Liu Gang Subject: Re: [PATCH] RapidIO: documentation update References: <1316092759-5460-1-git-send-email-alexandre.bounine@idt.com> In-Reply-To: <1316092759-5460-1-git-send-email-alexandre.bounine@idt.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Alexandre Bounine wrote: > After the host has completed enumeration of the entire network it releases > devices by clearing device ID locks (calls rio_clear_locks()). For each endpoint > -in the system, it sets the Master Enable bit in the Port General Control CSR > +in the system, it sets the Discovered bit in the Port General Control CSR > to indicate that enumeration is completed and agents are allowed to execute > passive discovery of the network. The host needs to set both. Without Master Enable an agent is not supposed to initiate transactions on the "bus", that's the meaning of that bit. Micha