From owner-freebsd-arm@FreeBSD.ORG Thu Jun 12 16:36:56 2014 Return-Path: Delivered-To: freebsd-arm@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 52C6789D for ; Thu, 12 Jun 2014 16:36:56 +0000 (UTC) Received: from mho-01-ewr.mailhop.org (mho-03-ewr.mailhop.org [204.13.248.66]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 260482F17 for ; Thu, 12 Jun 2014 16:36:55 +0000 (UTC) Received: from c-24-8-230-52.hsd1.co.comcast.net ([24.8.230.52] helo=damnhippie.dyndns.org) by mho-01-ewr.mailhop.org with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.72) (envelope-from ) id 1Wv7zc-000BQC-M5; Thu, 12 Jun 2014 16:36:48 +0000 Received: from [172.22.42.240] (revolution.hippie.lan [172.22.42.240]) by damnhippie.dyndns.org (8.14.3/8.14.3) with ESMTP id s5CGaj73001309; Thu, 12 Jun 2014 10:36:45 -0600 (MDT) (envelope-from ian@FreeBSD.org) X-Mail-Handler: Dyn Standard SMTP by Dyn X-Originating-IP: 24.8.230.52 X-Report-Abuse-To: abuse@dyndns.com (see http://www.dyndns.com/services/sendlabs/outbound_abuse.html for abuse reporting information) X-MHO-User: U2FsdGVkX1+Oa1BgeLJ7RBf4sY1T+tWj Subject: Re: Compilation for ARM From: Ian Lepore To: Stepan Dyatkovskiy In-Reply-To: <5398B1A2.3010007@narod.ru> References: <53935D02.2030604@narod.ru> <6D7645D2-9C08-4B5D-BAA5-5B6EC8F66F0B@kientzle.com> <5393FF7B.4020407@narod.ru> <1402428857.20883.177.camel@revolution.hippie.lan> <5398B1A2.3010007@narod.ru> Content-Type: text/plain; charset="us-ascii" Date: Thu, 12 Jun 2014 10:36:45 -0600 Message-ID: <1402591005.20883.213.camel@revolution.hippie.lan> Mime-Version: 1.0 X-Mailer: Evolution 2.32.1 FreeBSD GNOME Team Port Content-Transfer-Encoding: 7bit Cc: Tim Kientzle , freebsd-arm@FreeBSD.org X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Jun 2014 16:36:56 -0000 On Thu, 2014-06-12 at 01:44 +0600, Stepan Dyatkovskiy wrote: > Hi guys, > Thank you! I have built it successfully. It was really simple. Currently > I'm trying to launch with u-boot. Are here any instructions/manual how > to run kernel with u-boot? > Thanks! > -Stepan If you compile the dtb into the kernel, you can launch the kernel directly from u-boot. If you don't, then you need u-boot to launch ubldr (loader(8) that uses the u-boot API, which requires a u-boot with the API option enabled). The kernel can be loaded at any 1MB-boundary address, and can be launched by jumping to the load address + 0x100, such as: fatload 11000000; go 11000100 If you are using a modern u-boot that enables data caches, you need to turn them off manually, like: fatload 11000000 dcache off; dcache flush go 11000100 This is just a u-boot quirk, it disables caches on bootm and bootelf commands, but not on a "go" command. -- Ian