From patchwork Mon Feb 17 16:55:30 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "H. Nikolaus Schaller" X-Patchwork-Id: 11386893 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 81C0C92A for ; Mon, 17 Feb 2020 16:55:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 030C2222D9 for ; Mon, 17 Feb 2020 16:55:40 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=goldelico.com header.i=@goldelico.com header.b="BC+LE7ZC" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728864AbgBQQzj (ORCPT ); Mon, 17 Feb 2020 11:55:39 -0500 Received: from mo4-p03-ob.smtp.rzone.de ([85.215.255.101]:17082 "EHLO mo4-p03-ob.smtp.rzone.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728810AbgBQQzj (ORCPT ); Mon, 17 Feb 2020 11:55:39 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; t=1581958537; s=strato-dkim-0002; d=goldelico.com; h=References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: X-RZG-CLASS-ID:X-RZG-AUTH:From:Subject:Sender; bh=ex+tP/S3jJM/1n8mzovxtL99ooZIHpji+z8Ck9o3ixM=; b=BC+LE7ZCAZveaAFoluYtb4Q3baSJX5raqCmebCJfRBHA81Z4xWBNhmHNxuV2VQu8bL CbVTsOFh1QY3fPDznpjmCjYpCDgD9bUeYeSKH2usPSqUxVXxBGll/970irVOG4zJwp+i +SbJTRRl3DtHb/O7qFqHzqvKUWrL25BxTzyJSdie3DuzgiVPZShzG3mHNEywGrhhjeyo M2HitpNrNCb702vgmy7KhTo5XW2iJh+eC9nvxsCuPo+NZNvTemC/NSiMpMskc+tyGr3I 8POIbz/SSwrHFSYXBF9h8/oLSyxqpYu5AmF56RFJP6rWVPxGsZkmvZyVd2Pk47hh4WMd fbhA== X-RZG-AUTH: ":JGIXVUS7cutRB/49FwqZ7WcJeFKiMhflhwDubTJ9o1mfYzBGHXL8GTnsvhg=" X-RZG-CLASS-ID: mo00 Received: from iMac.fritz.box by smtp.strato.de (RZmta 46.1.12 DYNA|AUTH) with ESMTPSA id U06217w1HGtYOqv (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256 bits)) (Client did not present a certificate); Mon, 17 Feb 2020 17:55:34 +0100 (CET) From: "H. Nikolaus Schaller" To: PrasannaKumar Muralidharan , Paul Cercueil , Mathieu Malaterre , Srinivas Kandagatla , Rob Herring , Mark Rutland , Ralf Baechle , Paul Burton , Mauro Carvalho Chehab , "David S. Miller" , Greg Kroah-Hartman , Jonathan Cameron , "H. Nikolaus Schaller" , Krzysztof Kozlowski , Kees Cook , Andi Kleen , Geert Uytterhoeven Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-mips@vger.kernel.org, letux-kernel@openphoenux.org, kernel@pyra-handheld.com Subject: [RFC v4 6/6] MIPS: DTS: CI20: make DM9000 Ethernet controller use NVMEM to find the default MAC address Date: Mon, 17 Feb 2020 17:55:30 +0100 Message-Id: <1c124c43c0cd96274cb0386d68aa01ad8ef8b2cb.1581958529.git.hns@goldelico.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: References: MIME-Version: 1.0 Sender: linux-mips-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org There is a unique MAC address programmed into the eFuses of the JZ4780 chip in the CI20 factory. By using this for initializing the DM9000 Ethernet controller, every CI20 board has an individual - but stable - MAC address and DHCP can assign stable IP addresses. Signed-off-by: H. Nikolaus Schaller --- arch/mips/boot/dts/ingenic/ci20.dts | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/mips/boot/dts/ingenic/ci20.dts b/arch/mips/boot/dts/ingenic/ci20.dts index 37b93166bf22..6dc1f9eeff00 100644 --- a/arch/mips/boot/dts/ingenic/ci20.dts +++ b/arch/mips/boot/dts/ingenic/ci20.dts @@ -355,6 +355,9 @@ interrupt-parent = <&gpe>; interrupts = <19 4>; + + nvmem-cells = <ð0_addr>; + nvmem-cell-names = "mac-address"; }; };