From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mike Frysinger Subject: Re: [Celinux-dev] CELF Project Proposal- Refactoring Qi, lightweight bootloader Date: Mon, 21 Dec 2009 14:32:36 -0500 Message-ID: <8bd0f97a0912211132o55621bb9jd0139b740526bfd@mail.gmail.com> References: <4B29EC68.1040109@0xlab.org> <4B29F834.90108@warmcat.com> <20091221193038.38CB63F6EF@gemini.denx.de> Mime-Version: 1.0 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :from:date:message-id:subject:to:cc:content-type :content-transfer-encoding; bh=Xop84MbkNZsc7u0vd/Z5ntg0d7jzjp4d8RGO3RCYK7Q=; b=mU++e2wT4u4qzMwT5RIVFLUwNHGiJb2td/QHTkpGsAhBNdzLJYxjLtK0RuoD5VXdAF Ad79/GjnG3yc3mhZTKB5sYESBWoQmOQEHJk/n4Mzy0Rydlm8tLSd5nvLfbgqMXL02bjg BsI/sXcZgB0YGuGDPSUnaVlD7+yR1l5MqbmL4= In-Reply-To: <20091221193038.38CB63F6EF@gemini.denx.de> Sender: linux-embedded-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="utf-8" To: Wolfgang Denk Cc: Andy Green , Matt Hsu , linux-embedded@vger.kernel.org, celinux-dev@tree.celinuxforum.org On Mon, Dec 21, 2009 at 14:30, Wolfgang Denk wrote: > Andy wrote: >> Another big problem with U-Boot was the inability to update the >> bootloader from the Linux world. =C2=A0Instead the bootloader was tr= eated >> special and had to be updated over USB with DFU (the exclusivity of = it >> enforced by an ECC policy disconnected from Linux, meaning U-Boot ha= d to >> write it in there). =C2=A0In Qi, the bootloader can be updated by a = packaged >> update like anything else in the rootfs. > > Can you explain to me why it was not possible to update U-Boot from > Linux? I cannot imagine a reason for such a restriction. we do it all the time under the Blackfin port on nor/nand/spi flashes. -mike