From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dmitry Eremin-Solenikov Subject: Re: [PATCH] ARM: OMAP2+: Warn about deprecated legacy booting mode Date: Wed, 3 Dec 2014 22:22:17 +0000 (UTC) Message-ID: References: <20141027200008.GR2560@atomide.com> <201411270038.01312@pali> <20141127011203.GR2817@atomide.com> <201411271232.47231@pali> <20141128202719.GU2817@atomide.com> <20141203165204.GD26685@amd> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from plane.gmane.org ([80.91.229.3]:52494 "EHLO plane.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750730AbaLCWWd (ORCPT ); Wed, 3 Dec 2014 17:22:33 -0500 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1XwIJb-0000EO-B9 for linux-omap@vger.kernel.org; Wed, 03 Dec 2014 23:22:31 +0100 Received: from 178.70.169.181 ([178.70.169.181]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 03 Dec 2014 23:22:31 +0100 Received: from dbaryshkov by 178.70.169.181 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 03 Dec 2014 23:22:31 +0100 Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: linux-omap@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org On Wed, 03 Dec 2014 17:52:04 +0100, Pavel Machek wrote: > On Fri 2014-11-28 12:27:19, Tony Lindgren wrote: >> * Pali Roh=C3=A1r [141127 03:34]: >> > On Thursday 27 November 2014 02:12:04 Tony Lindgren wrote: >> > >=20 >> > > Thinking about this probably the best long term solution is to p= ass >> > > optional board_revision in the kernel cmdline that can be parsed >> > > early and copied to system_rev variable. >> > >=20 >> > >=20 >> > Not possible. Our bootloader is closed & proprietary. I tried to >> > replace it with u-boot I was not able to do that. So we will use t= hat >> > Nokia closed bootloader forever and it can provide data only in AT= AG >> > structure. >>=20 >> I'm using just mainline u-boot flashed as kernel for nolo that then >> loads the kernel. >>=20 >> For passing the board revision using the pass through u-boot is >> probably the best long term solution. U-boot can read the ATAGs from >> nolo and modify the .dtb for the revision information. >>=20 >> Are you saying there are some issues with that? >=20 > Plenty :-). >=20 > Basically, u-boot is great for production (select one of kernels and > boot it), but pretty much unusable for development: You might want to look at kexecboot project. Basically it is an initram= fs payload bundled with a Linux kernel that can further choose which kerne= l to load. USB is not supported (afair), but one might add that - it's just a Linux environment in the end. --=20 With best wishes Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-omap" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html