From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id D8280B6F9D for ; Sat, 30 Jun 2012 01:57:44 +1000 (EST) Subject: Re: [PATCH 0/3] powerpc/fsl: PCI refactoring and QEMU paravirt platform Mime-Version: 1.0 (Apple Message framework v1278) Content-Type: text/plain; charset=us-ascii From: Kumar Gala In-Reply-To: <412C8208B4A0464FA894C5F0C278CD5D01A13620@039-SN1MPN1-002.039d.mgd.msft.net> Date: Fri, 29 Jun 2012 10:57:41 -0500 Message-Id: <34D617F2-54CD-46DA-A110-E44CE081B99B@kernel.crashing.org> References: <20120627234851.GA9071@tyr.buserror.net> <412C8208B4A0464FA894C5F0C278CD5D01A10EAB@039-SN1MPN1-002.039d.mgd.msft.net> <4FEC86CC.90307@freescale.com> <412C8208B4A0464FA894C5F0C278CD5D01A13620@039-SN1MPN1-002.039d.mgd.msft.net> To: Jia Hongtao-B38951 Cc: Wood Scott-B07421 , "linuxppc-dev@lists.ozlabs.org" , Li Yang-R58472 , "agraf@suse.de" List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Jun 28, 2012, at 9:36 PM, Jia Hongtao-B38951 wrote: >=20 >=20 >> -----Original Message----- >> From: Wood Scott-B07421 >> Sent: Friday, June 29, 2012 12:31 AM >> To: Jia Hongtao-B38951 >> Cc: Wood Scott-B07421; galak@kernel.crashing.org; Li Yang-R58472; >> agraf@suse.de; linuxppc-dev@lists.ozlabs.org >> Subject: Re: [PATCH 0/3] powerpc/fsl: PCI refactoring and QEMU = paravirt >> platform >>=20 >> On 06/27/2012 11:06 PM, Jia Hongtao-B38951 wrote: >>>=20 >>>=20 >>>> -----Original Message----- >>>> From: Wood Scott-B07421 >>>> Sent: Thursday, June 28, 2012 7:49 AM >>>> To: galak@kernel.crashing.org >>>> Cc: agraf@suse.de; linuxppc-dev@lists.ozlabs.org; Jia = Hongtao-B38951 >>>> Subject: [PATCH 0/3] powerpc/fsl: PCI refactoring and QEMU paravirt >>>> platform >>>>=20 >>>> The QEMU stuff is related to the PCI refactoring because currently >>>> we have a hard time selecting a primary bus under QEMU, and also >> because >>>> the generic qemu e500 platform wants a full list of FSL PCI >> compatibles >>>> to check. >>>>=20 >>>=20 >>> It seems that not all primary bus has "isa" node like 8541 and 8555. >>=20 >> Do those boards (it's the boards that matter, not chips...) have = legacy >> ISA? If they do, and it's not in the device tree, then we should fix >> the device tree for consistency, but also retain some sort of hack to >> remain compatible with old device trees. >>=20 >> A board can refrain from using the new common infrastructure if it = has a >> good reason to. >=20 > I'm not sure that MPC8541CDS (or 8555) has legacy ISA. I just checked = in > kernel and dts which implies the board has primary bus and no "isa" = node. > I will find out the facts later. Pretty sure the boards have ISA, if you see the .dts has references to = 'ISA bridge' & 'i8259' PIC. - k