From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.windriver.com (mail.windriver.com [147.11.1.11]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "mail7.windriver.com", Issuer "Intel External Basic Issuing CA 3A" (not verified)) by bilbo.ozlabs.org (Postfix) with ESMTPS id BDA9EB7099 for ; Wed, 19 Aug 2009 11:44:35 +1000 (EST) Message-ID: <4A8B5929.2030000@windriver.com> Date: Wed, 19 Aug 2009 09:45:13 +0800 From: "tiejun.chen" MIME-Version: 1.0 To: Josh Boyer Subject: Re: powerpc/405ex: Support cuImage for PPC405EX References: <1250562484-16415-1-git-send-email-tiejun.chen@windriver.com> <20090818132835.GA2530@zod.rchland.ibm.com> In-Reply-To: <20090818132835.GA2530@zod.rchland.ibm.com> Content-Type: text/plain; charset=UTF-8 Cc: linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Josh Boyer wrote: > On Tue, Aug 18, 2009 at 10:28:02AM +0800, Tiejun Chen wrote: >> Summary: powerpc/405ex: Support cuImage for PPC405EX >> Reviewers: Benjmain and linux-ppc >> ---------------------------------------------------- >> These patch series are used to support cuImage on the kilauea board based on PPC405ex. >> >> Tested on the amcc kilauea board: > > Hm. The U-Boot version that ships on the AMCC Kilauea board is FDT aware, so > cuImage shouldn't be needed at all. I'm slightly confused why we need this. That the newer u-boot can aware extra on Kilauea is really as you said. But I think I/we need to consider some other requirements for 405EX, such as only using one image for convenient on embedded system, and u-boot don't pass dtb for kernel since it will be isolated with one customer software layer. And actually to support old U-boot compatibility is original *goal* of implementing cuImage in kernel as we know. Right? As Documentation/powerpc/bootwrapper.txt I think the kernel should support more image variant to satisfy different requirement. Sometimes that is also beyond we can discuss here. > Are you using it for some other board derived from 405EX that doesn't have > an FDT aware U-Boot? > Yes, this is really another factor. Anyway thinks your comments. Best Reards Tiejun > josh >