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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 78750FC6195 for ; Fri, 8 Nov 2019 19:20:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 519CE20674 for ; Fri, 8 Nov 2019 19:20:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573240850; bh=iKwre2xSx1YiH/5+fhpFyPARnJ3tWS/KJ2o5COKmVjY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=ReJtItmnzLfeINYXvk77nqBgbjsJlWN+M+CPR2Dh2zWJtKwPdTC7R3VBuXkv4JuEO 6RbUYoyM3BDMcU2+5sEiwAMUle4prSO7/eV0ef1DyhzQubPdvG/SQ0keR3vQRUDeUn OLX2r4QzMk6EFa32ALf8e2LpUo28IqEO02dsxl5M= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391336AbfKHTUe (ORCPT ); Fri, 8 Nov 2019 14:20:34 -0500 Received: from mail.kernel.org ([198.145.29.99]:57248 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389421AbfKHTAH (ORCPT ); Fri, 8 Nov 2019 14:00:07 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 95DAD2248D; Fri, 8 Nov 2019 18:58:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573239505; bh=iKwre2xSx1YiH/5+fhpFyPARnJ3tWS/KJ2o5COKmVjY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GfSToNTVmntnmdevLRSNRd7SqQUiYnzpDMIXrztZShZ+SQZwJimUIOv8TiSLjzp2R 0y5LREF4IPzp6+9N6/Jpgz2q//e/+M3KJiBXGoq4HF6UdTIBEBAt0Fn9Y1qN1HEI88 zFRqz6aHB64tl1YB2thM+tPZFxHZBuPG+aSUizbk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Florian Fainelli , "David S. Miller" Subject: [PATCH 4.14 27/62] net: dsa: bcm_sf2: Fix IMP setup for port different than 8 Date: Fri, 8 Nov 2019 19:50:15 +0100 Message-Id: <20191108174741.364762939@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191108174719.228826381@linuxfoundation.org> References: <20191108174719.228826381@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Florian Fainelli [ Upstream commit 5fc0f21246e50afdf318b5a3a941f7f4f57b8947 ] Since it became possible for the DSA core to use a CPU port different than 8, our bcm_sf2_imp_setup() function was broken because it assumes that registers are applicable to port 8. In particular, the port's MAC is going to stay disabled, so make sure we clear the RX_DIS and TX_DIS bits if we are not configured for port 8. Fixes: 9f91484f6fcc ("net: dsa: make "label" property optional for dsa2") Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/dsa/bcm_sf2.c | 36 +++++++++++++++++++++--------------- 1 file changed, 21 insertions(+), 15 deletions(-) --- a/drivers/net/dsa/bcm_sf2.c +++ b/drivers/net/dsa/bcm_sf2.c @@ -106,22 +106,11 @@ static void bcm_sf2_imp_setup(struct dsa unsigned int i; u32 reg, offset; - if (priv->type == BCM7445_DEVICE_ID) - offset = CORE_STS_OVERRIDE_IMP; - else - offset = CORE_STS_OVERRIDE_IMP2; - /* Enable the port memories */ reg = core_readl(priv, CORE_MEM_PSM_VDD_CTRL); reg &= ~P_TXQ_PSM_VDD(port); core_writel(priv, reg, CORE_MEM_PSM_VDD_CTRL); - /* Enable Broadcast, Multicast, Unicast forwarding to IMP port */ - reg = core_readl(priv, CORE_IMP_CTL); - reg |= (RX_BCST_EN | RX_MCST_EN | RX_UCST_EN); - reg &= ~(RX_DIS | TX_DIS); - core_writel(priv, reg, CORE_IMP_CTL); - /* Enable forwarding */ core_writel(priv, SW_FWDG_EN, CORE_SWMODE); @@ -140,10 +129,27 @@ static void bcm_sf2_imp_setup(struct dsa bcm_sf2_brcm_hdr_setup(priv, port); - /* Force link status for IMP port */ - reg = core_readl(priv, offset); - reg |= (MII_SW_OR | LINK_STS); - core_writel(priv, reg, offset); + if (port == 8) { + if (priv->type == BCM7445_DEVICE_ID) + offset = CORE_STS_OVERRIDE_IMP; + else + offset = CORE_STS_OVERRIDE_IMP2; + + /* Force link status for IMP port */ + reg = core_readl(priv, offset); + reg |= (MII_SW_OR | LINK_STS); + core_writel(priv, reg, offset); + + /* Enable Broadcast, Multicast, Unicast forwarding to IMP port */ + reg = core_readl(priv, CORE_IMP_CTL); + reg |= (RX_BCST_EN | RX_MCST_EN | RX_UCST_EN); + reg &= ~(RX_DIS | TX_DIS); + core_writel(priv, reg, CORE_IMP_CTL); + } else { + reg = core_readl(priv, CORE_G_PCTL_PORT(port)); + reg &= ~(RX_DIS | TX_DIS); + core_writel(priv, reg, CORE_G_PCTL_PORT(port)); + } } static void bcm_sf2_eee_enable_set(struct dsa_switch *ds, int port, bool enable)