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=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no 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 3C9E7C433DB for ; Mon, 25 Jan 2021 21:07:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F1A05207B1 for ; Mon, 25 Jan 2021 21:07:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732412AbhAYVGy (ORCPT ); Mon, 25 Jan 2021 16:06:54 -0500 Received: from mx2.suse.de ([195.135.220.15]:55462 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732514AbhAYVGe (ORCPT ); Mon, 25 Jan 2021 16:06:34 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 19402ACF5; Mon, 25 Jan 2021 21:04:36 +0000 (UTC) Message-ID: Subject: Re: [PATCH v3 0/5] Expose RPi4's bootloader configuration From: Nicolas Saenz Julienne To: srinivas.kandagatla@linaro.org, linux-kernel@vger.kernel.org Cc: devicetree@vger.kernel.org, tim.gover@raspberrypi.com, catalin.marinas@arm.com, linux@armlinux.org.uk, robh+dt@kernel.org, bcm-kernel-feedback-list@broadcom.com, linux-arm-kernel@lists.infradead.org, will@kernel.org, phil@raspberrypi.com, linux-rpi-kernel@lists.infradead.org Date: Mon, 25 Jan 2021 22:04:34 +0100 In-Reply-To: <20210112142342.7290-1-nsaenzjulienne@suse.de> References: <20210112142342.7290-1-nsaenzjulienne@suse.de> Content-Type: multipart/signed; micalg="pgp-sha256"; protocol="application/pgp-signature"; boundary="=-t1ncgtAfbkcNLrE7vV3a" User-Agent: Evolution 3.38.3 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org --=-t1ncgtAfbkcNLrE7vV3a Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Tue, 2021-01-12 at 15:23 +0100, Nicolas Saenz Julienne wrote: > Soon to be released versions of RPi4's firmware will take of care > passing their bootloader's configuration[1] to the OS by copying it into > memory and creating a reserved memory node in the board's DT. By > modeling this reserved memory node as an nvmem device using > 'nvmem-rmem', which this series introduces, user-space applications will > be able to query this information through nvmem's sysfs interface. >=20 > An alternative approach, less nice IMO, would be to create a > platform-specific 'soc' driver. >=20 > Regards, > Nicolas >=20 > [1] https://www.raspberrypi.org/documentation/hardware/raspberrypi/bcm271= 1_bootloader_config.md >=20 Applied patches #3 to #5 for next. Regards, Nicolas --=-t1ncgtAfbkcNLrE7vV3a Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEErOkkGDHCg2EbPcGjlfZmHno8x/4FAmAPMmIACgkQlfZmHno8 x/5KRgf9GfjvLYrrrCBNQPi/hEIjYx4XMShjEs5cQxguoN86J1nUqasvWZb7jU0t kr3oOWV5Lz+U+REX2B19Pg8czeRs6RF8CgojV0h0BYhVrbIRV2yw25dzY6tJ5yob a+oL/v8VlHVNC800sqdS+eRNYQTKv2auoeOhjAh4TXD4Pr553G1nbsVAtZvTY+g8 NgECnnfg5ucKIad3rQqKEVpiDCd7MzdcLl94/iDh/IV0qq1bydVmSbiIL11UUOoh UB8AbIm19NMF4BakAIBak0YrDXMEXsylq+8UJb2/4II0WSAKELBEa6oLqFblB560 vlNR9n/H1sXk1ZK6EBCk9y0F7q1ClA== =y/5r -----END PGP SIGNATURE----- --=-t1ncgtAfbkcNLrE7vV3a--