Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752460AbbFFLKE (ORCPT ); Sat, 6 Jun 2015 07:10:04 -0400 Received: from crl-mxout1.it.nicta.com.au ([221.199.218.17]:35634 "EHLO crl-mxout1.it.nicta.com.au" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751500AbbFFLJy (ORCPT ); Sat, 6 Jun 2015 07:09:54 -0400 X-Greylist: delayed 504 seconds by postgrey-1.27 at vger.kernel.org; Sat, 06 Jun 2015 07:09:54 EDT Date: Sat, 6 Jun 2015 21:01:00 +1000 Message-ID: <848ubx2j9v.wl-peter.chubb@nicta.com.au> From: Peter Chubb To: Krzysztof Kozlowski CC: Jonathan Corbet , , , Kukjin Kim , , , Russell King , Kevin Hilman , Arnd Bergmann , Olof Johansson , "Javier Martinez Canillas" , "Bartlomiej Zolnierkiewicz" Subject: Re: [PATCH] Documentation: ARM: EXYNOS: Describe boot loaders interface In-Reply-To: <1433585151-3627-1-git-send-email-k.kozlowski.k@gmail.com> References: <1433585151-3627-1-git-send-email-k.kozlowski.k@gmail.com> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM/1.14.9 (=?ISO-8859-4?Q?Goj=F2?=) APEL/10.8 EasyPG/1.0.0 Emacs/24.4 (x86_64-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO) X-Face: GgFg(Z>fx((4\32hvXq<)|jndSniCH~~$D)Ka:P@e@JR1P%Vr}EwUdfwf-4j\rUs#JR{'h# !]])6%Jh~b$VA|ALhnpPiHu[-x~@<"@Iv&|%R)Fq[[,(&Z'O)Q)xCqe1\M[F8#9l8~}#u$S$Rm`S9% \'T@`:&8>Sb*c5d'=eDYI&GF`+t[LfDH="MP5rwOO]w>ALi7'=QJHz&y&C&TE_3j! Organization: NICTA MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset="US-ASCII" X-TM-AS-Product-Ver: SMEX-11.0.0.1251-8.000.1202-21596.006 X-TM-AS-Result: No--0.695000-8.000000-31 X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1343 Lines: 28 >>>>> "Krzysztof" == Krzysztof Kozlowski writes: Krzysztof> Various boot loaders for Exynos based boards use certain Krzysztof> memory addresses during booting for different Krzysztof> purposes. Mostly this is one of following : 1. as a CPU Krzysztof> boot address, 2. for storing magic cookie related to low Krzysztof> power mode (AFTR, sleep). Krzysztof> The document, based solely on kernel source code, tries to Krzysztof> group the information scattered over different files. This Krzysztof> would help in the future when adding support for new SoC or Krzysztof> when extending features related to low power modes. Is it worth grabbing the info from u=boot and documenting it here (it's not documented other than in the hardkenel U=Boot source)? I can send you the info, or you can see it in https://github.com/hardkernel/u-boot/blob/odroidxu3-v2012.07/board/samsung/smdk5420/lowlevel_init.S at symbol nscode_base near line 104 -- Dr Peter Chubb peter.chubb AT nicta.com.au http://www.ssrg.nicta.com.au Software Systems Research Group/NICTA -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/