From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_AGENT_NEOMUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 06BB0C43381 for ; Mon, 18 Mar 2019 08:42:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CA6A52070D for ; Mon, 18 Mar 2019 08:42:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726915AbfCRImS (ORCPT ); Mon, 18 Mar 2019 04:42:18 -0400 Received: from relay10.mail.gandi.net ([217.70.178.230]:33267 "EHLO relay10.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726564AbfCRImS (ORCPT ); Mon, 18 Mar 2019 04:42:18 -0400 Received: from localhost (aaubervilliers-681-1-80-102.w90-88.abo.wanadoo.fr [90.88.22.102]) (Authenticated sender: maxime.ripard@bootlin.com) by relay10.mail.gandi.net (Postfix) with ESMTPSA id E851624000F; Mon, 18 Mar 2019 08:42:12 +0000 (UTC) Date: Mon, 18 Mar 2019 09:42:12 +0100 From: Maxime Ripard To: Chen-Yu Tsai Cc: Srinivas Kandagatla , linux-sunxi@googlegroups.com, Chen-Yu Tsai , linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 4/6] nvmem: sunxi_sid: Read out data in native format Message-ID: <20190318084212.lv2lorskizl65uzg@flea> References: <20190318073354.12151-1-wens@kernel.org> <20190318073354.12151-5-wens@kernel.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="pby5l7iw3zraifpt" Content-Disposition: inline In-Reply-To: <20190318073354.12151-5-wens@kernel.org> User-Agent: NeoMutt/20180716 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --pby5l7iw3zraifpt Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hi, On Mon, Mar 18, 2019 at 03:33:52PM +0800, Chen-Yu Tsai wrote: > From: Chen-Yu Tsai > > Originally the SID e-fuses were thought to be in big-endian format. > Later sources show that they are in fact native or little-endian. > The most compelling evidence is the thermal sensor calibration data, > which is a set of one to three 16-bit values. In native-endian they > are in 16-bit cells with increasing offsets, whereas with big-endian > they are in the wrong order, and a gap with no data will show if there > are one or three cells. > > Switch to a native endian representation for the nvmem device. For the > H3, the register read-out method was already returning data in native > endian. This only affects the other SoCs. > > Signed-off-by: Chen-Yu Tsai I thought only the newer SoCs were impacted by this issue? -- Maxime Ripard, Bootlin Embedded Linux and Kernel engineering https://bootlin.com --pby5l7iw3zraifpt Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRcEzekXsqa64kGDp7j7w1vZxhRxQUCXI9Z5AAKCRDj7w1vZxhR xag8AP47BMEXFaDn8FTHN67Db5PvozKd5J1OIkr4/NQzV5lLIQEA+3LzHeutDmpg VTbAfwne4GqFJ4QLhJRD4BSuWRtyOgU= =sOTk -----END PGP SIGNATURE----- --pby5l7iw3zraifpt--