From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wolfgang Denk Date: Fri, 01 Jul 2011 17:45:22 +0200 Subject: [U-Boot] U-boot SPL direct Linux boot In-Reply-To: References: Message-ID: <20110701154522.623071EA349@gemini.denx.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Dear Detlev, In message you wrote: > > Just a probably dumb side question, but will ATAGS be deprecated once we > have the flat device tree also on ARM? As I understand, fdt is certainly This is our understanding. For DT aware boards, no ATAGS are needed /used any more. > the way to go forward, so maybe we can already start with that? In that > case, the fdt blob will be another binary blob to be passed to the > kernel and as such should be independant of U-Boot. So ideally in > U-Boot we have a pointer to the fdt but the fdt itself can be updated > independantly. Right. That was the idea behind Heikos code: we don't actually care what the kernel expects, we just pass it a binary blob and assume it will understand it. This may be a blob with ATAGs, or a blob with a DT - only the kernel needs to know, the code in the SPL remains lean and flexible. Best regards, Wolfgang Denk -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de It is dangerous to be right on a subject on which the established authorities are wrong. -- Voltaire