From patchwork Mon Jul 19 14:54:32 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 480544 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=-20.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT 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 F2611C63799 for ; Mon, 19 Jul 2021 16:21:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D695661404 for ; Mon, 19 Jul 2021 16:21:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236600AbhGSPkK (ORCPT ); Mon, 19 Jul 2021 11:40:10 -0400 Received: from mail.kernel.org ([198.145.29.99]:59680 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1349034AbhGSPfl (ORCPT ); Mon, 19 Jul 2021 11:35:41 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 9373B61287; Mon, 19 Jul 2021 16:16:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1626711362; bh=gOWZPvUwpqkulmVjVCCAwQS+gJTvdhBIbHnGweJFv1w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Oqz/FJ4/GtT9wwRamOm8A/1Ykg0HK72A3DVZMcHiYDf5eK49VD4n6prXCGiTVq73G QrGokrV3RY7YwQlL/T/FIoxx4xfG2ZxzU9lJR2K384yhwxSFrjxrFNLO/Cs7pk2e0r lWRvHdL8IgFEWHPlRCTfTmDkHZa9sP0zSm4uWNho= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Grygorii Strashko , Vignesh Raghavendra , Nishanth Menon , Sasha Levin Subject: [PATCH 5.13 326/351] arm64: dts: ti: k3-am642-main: fix ports mac properties Date: Mon, 19 Jul 2021 16:54:32 +0200 Message-Id: <20210719144955.843945988@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210719144944.537151528@linuxfoundation.org> References: <20210719144944.537151528@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Grygorii Strashko [ Upstream commit 50c9bfca1bfe9ffd56d8c5deecf9204d14e20bfd ] The current device tree CPSW3g node adds non-zero "mac-address" property to the ports, which prevents random MAC address assignment to network devices if bootloader failed to update DT. This may cause more then one host to have the same MAC in the network. mac-address = [00 00 de ad be ef]; mac-address = [00 01 de ad be ef]; In addition, there is one MAC address available in eFuse registers which can be used for default port 1. Hence, fix ports MAC properties by: - resetting "mac-address" property to 0 - adding ti,syscon-efuse = <&main_conf 0x200> to Port 1 Fixes: 3753b12877b6 ("arm64: dts: ti: k3-am64-main: Add CPSW DT node") Signed-off-by: Grygorii Strashko Reviewed-by: Vignesh Raghavendra Signed-off-by: Nishanth Menon Link: https://lore.kernel.org/r/20210608184940.25934-1-grygorii.strashko@ti.com Signed-off-by: Sasha Levin --- arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi index ca59d1f711f8..bcbf436a96b5 100644 --- a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi @@ -489,7 +489,8 @@ ti,mac-only; label = "port1"; phys = <&phy_gmii_sel 1>; - mac-address = [00 00 de ad be ef]; + mac-address = [00 00 00 00 00 00]; + ti,syscon-efuse = <&main_conf 0x200>; }; cpsw_port2: port@2 { @@ -497,7 +498,7 @@ ti,mac-only; label = "port2"; phys = <&phy_gmii_sel 2>; - mac-address = [00 01 de ad be ef]; + mac-address = [00 00 00 00 00 00]; }; };