From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-in-02.arcor-online.net (mail-in-02.arcor-online.net [151.189.21.42]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "mx.arcor.de", Issuer "Thawte Premium Server CA" (verified OK)) by ozlabs.org (Postfix) with ESMTP id 95870DDDED for ; Wed, 28 Feb 2007 10:24:13 +1100 (EST) In-Reply-To: <200702272223.l1RMNKcF030373@ld0164-tx32.am.freescale.net> References: <200702272223.l1RMNKcF030373@ld0164-tx32.am.freescale.net> Mime-Version: 1.0 (Apple Message framework v623) Content-Type: text/plain; charset=US-ASCII; format=flowed Message-Id: <02cb84d7709d1b86ce33030c297c0de1@kernel.crashing.org> From: Segher Boessenkool Subject: Re: [PATCH] powerpc: update interrupt info in booting-without-of.txt Date: Wed, 28 Feb 2007 00:23:30 +0100 To: Stuart Yoder Cc: linuxppc-dev@ozlabs.org, paulus@samba.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , > +Devices that generate interrupts have an 'interrupt parent' in > +the interrupt tree. An interrupt parent can be explicitly > +defined through the interrupt-parent property. For nodes with > +no interrupt-parent, the interrupt parent is assumed to be > +the node's _device tree_ parent. Or its parent, or its grandparent, etc. > +The encoding of an interrupt specifier is determined by the > +domain (or nexus) Domain. An interrupt nexus is to the interrupt tree what a node is to the device tree. > +The PCI bus binding specifies a #interrupt-cell value of 1 to encode > +which interrupt line (INTA,INTB,INTC,INTD) is used. s/line/pin/ to agree with PCI terminology. > +The interrupt-parent property is specified to define an explicit > +link between a device node and its interrupt parent in > +the interrupt tree. The value of interrupt-parent is the > +phandle to the parent node. phandle _of_ the parent node please. > +If the interrupt-parent property is not defined for a node, it's > +interrupt parent is assumed to be it's device tree_ parent. Same thing again. You missed an underscore, too. > +OpenPIC interrupt controllers required 2 cells to encode s/required/require/ > +ISA PIC interrupt controllers required 2 cells to encode same thing Looks good otherwise, thanks. Segher