From patchwork Wed Apr 6 14:35:20 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Russell King (Oracle)" X-Patchwork-Id: 12803571 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0FEE2C433F5 for ; Wed, 6 Apr 2022 14:38:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Date:Message-Id:MIME-Version:Subject:Cc :To:From:References:In-Reply-To:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=q26+FTUYayPGSUXk/v0LF9wgKaJWS6DMebvQRR/IKTs=; b=QDVE4xg8qbrXD6 U8qp4In4ZHnwLHYTBOZiPJKeFLJer4O0oDdwBM3lt7gNbJdEXJif6sSK2dV0A88ADHQvLR46vDD2y LRiYxmjHC4GuyFTIMDl4/DBkdP08ROWeK2NWOTo2LpRsV8DIOw3GkVu8HI08DeD/Mgqnsh3/+4Cgt immdi4aOrWbChDIebxaesUCSkO+XHG6huUSm8oZoKxwer7mm1R7dyHXM5USO9ju/lP8IWnWrQCQEY pUd7T3kZJHIlsWW6eey4xs8V0BUq/jXVIJ3NImHtktIwY2c9DBMX/JrgxcR3+wwziiqkcdMFF/a5N eZFphCBQicV9pad4bT0w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nc6nI-006Z7f-9Z; Wed, 06 Apr 2022 14:38:00 +0000 Received: from pandora.armlinux.org.uk ([2001:4d48:ad52:32c8:5054:ff:fe00:142]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nc6kp-006Xrv-G2; Wed, 06 Apr 2022 14:35:29 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Date:Sender:Message-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:Subject:Cc:To:From:References: In-Reply-To:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=BDbYnTS0oTHfNb+Yu5s/Nzh1/TaiMZpWAo7vfLU9G5A=; b=ul37fOcGJxV3Zg/+WyhP/4e7Z2 k8foi0+QqiT2WPKNxNYfBQZzWNsShObr32XbAxnY9Na7lGKKLzoJ/8H5mEc6q+UgtE7bwiw3ul1dS QDBzD2GI2y047fEFVZ5VKbmUSShAce8tmYitbYDBbGFygIVQZbKlTK7UKZdKx/lMn+8HdT4HA9eG7 o3yGqxgnaQpOOv2R7pCo5Dr3ujNEZWBfQ7OsQgxk8jA4qZcnsxgyYpD4M6MKclCQQjbYINA3iILm7 csu0MZhMam9lFWDCjTWiasSnZgWysSWJfNkHlAHiXZagLT0fqD7FatyDdUzI6qbn0IjRljs2DeZuH bEHc9HnQ==; Received: from e0022681537dd.dyn.armlinux.org.uk ([fd8f:7570:feb6:1:222:68ff:fe15:37dd]:60672 helo=rmk-PC.armlinux.org.uk) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1nc6ki-0002ux-UY; Wed, 06 Apr 2022 15:35:20 +0100 Received: from rmk by rmk-PC.armlinux.org.uk with local (Exim 4.94.2) (envelope-from ) id 1nc6ki-004ijw-1O; Wed, 06 Apr 2022 15:35:20 +0100 In-Reply-To: References: From: Russell King To: Marek =?iso-8859-1?q?Beh=FAn?= Cc: Felix Fietkau , John Crispin , Sean Wang , Mark Lee , "David S. Miller" , Jakub Kicinski , Paolo Abeni , Matthias Brugger , netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Subject: [PATCH RFC net-next 05/12] net: mtk_eth_soc: correct 802.3z duplex setting MIME-Version: 1.0 Content-Disposition: inline Message-Id: Date: Wed, 06 Apr 2022 15:35:20 +0100 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220406_073527_608153_D4C74964 X-CRM114-Status: GOOD ( 15.29 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Phylink does not guarantee that state->duplex will be set correctly in the mac_config() call, so it's a bug that the driver makes use of it. Move the 802.3z PCS duplex configuration to mac_link_up(). Signed-off-by: Russell King --- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 16 +++++++++++---- drivers/net/ethernet/mediatek/mtk_eth_soc.h | 1 + drivers/net/ethernet/mediatek/mtk_sgmii.c | 22 +++++++++++++++------ 3 files changed, 29 insertions(+), 10 deletions(-) diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index e491d43f049a..6fedfa8fceb1 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -482,8 +482,18 @@ static void mtk_mac_link_up(struct phylink_config *config, { struct mtk_mac *mac = container_of(config, struct mtk_mac, phylink_config); - u32 mcr = mtk_r32(mac->hw, MTK_MAC_MCR(mac->id)); + u32 mcr; + + if (phy_interface_mode_is_8023z(interface)) { + struct mtk_eth *eth = mac->hw; + + /* Decide how GMAC and SGMIISYS be mapped */ + int sid = (MTK_HAS_CAPS(eth->soc->caps, MTK_SHARED_SGMII)) ? + 0 : mac->id; + mtk_sgmii_link_up(eth->sgmii, sid, speed, duplex); + } + mcr = mtk_r32(mac->hw, MTK_MAC_MCR(mac->id)); mcr &= ~(MAC_MCR_SPEED_100 | MAC_MCR_SPEED_1000 | MAC_MCR_FORCE_DPX | MAC_MCR_FORCE_TX_FC | MAC_MCR_FORCE_RX_FC); @@ -2972,9 +2982,7 @@ static int mtk_add_mac(struct mtk_eth *eth, struct device_node *np) mac->phylink_config.dev = ð->netdev[id]->dev; mac->phylink_config.type = PHYLINK_NETDEV; - /* This driver makes use of state->speed/state->duplex in - * mac_config - */ + /* This driver makes use of state->speed in mac_config */ mac->phylink_config.legacy_pre_march2020 = true; mac->phylink_config.mac_capabilities = MAC_ASYM_PAUSE | MAC_SYM_PAUSE | MAC_10 | MAC_100 | MAC_1000 | MAC_2500FD; diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.h b/drivers/net/ethernet/mediatek/mtk_eth_soc.h index f31ef594008a..1912f84922c8 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h @@ -1007,6 +1007,7 @@ int mtk_sgmii_init(struct mtk_sgmii *ss, struct device_node *np, int mtk_sgmii_setup_mode_an(struct mtk_sgmii *ss, int id); int mtk_sgmii_setup_mode_force(struct mtk_sgmii *ss, int id, const struct phylink_link_state *state); +void mtk_sgmii_link_up(struct mtk_sgmii *ss, int id, int speed, int duplex); void mtk_sgmii_restart_an(struct mtk_eth *eth, int mac_id); int mtk_gmac_sgmii_path_setup(struct mtk_eth *eth, int mac_id); diff --git a/drivers/net/ethernet/mediatek/mtk_sgmii.c b/drivers/net/ethernet/mediatek/mtk_sgmii.c index 16e66c0cb557..a5ec61e13b85 100644 --- a/drivers/net/ethernet/mediatek/mtk_sgmii.c +++ b/drivers/net/ethernet/mediatek/mtk_sgmii.c @@ -82,14 +82,10 @@ int mtk_sgmii_setup_mode_force(struct mtk_sgmii *ss, int id, val &= ~SGMII_AN_ENABLE; regmap_write(ss->regmap[id], SGMSYS_PCS_CONTROL_1, val); - /* SGMII force mode setting */ + /* Set the speed etc but leave the duplex unchanged */ regmap_read(ss->regmap[id], SGMSYS_SGMII_MODE, &val); - val &= ~SGMII_IF_MODE_MASK; + val &= SGMII_DUPLEX_FULL | ~SGMII_IF_MODE_MASK; val |= SGMII_SPEED_1000; - - if (state->duplex == DUPLEX_FULL) - val |= SGMII_DUPLEX_FULL; - regmap_write(ss->regmap[id], SGMSYS_SGMII_MODE, val); /* Release PHYA power down state */ @@ -100,6 +96,20 @@ int mtk_sgmii_setup_mode_force(struct mtk_sgmii *ss, int id, return 0; } +/* For 1000BASE-X and 2500BASE-X interface modes */ +void mtk_sgmii_link_up(struct mtk_sgmii *ss, int id, int speed, int duplex) +{ + unsigned int val; + + /* SGMII force duplex setting */ + regmap_read(ss->regmap[id], SGMSYS_SGMII_MODE, &val); + val &= ~SGMII_DUPLEX_FULL; + if (duplex == DUPLEX_FULL) + val |= SGMII_DUPLEX_FULL; + + regmap_write(ss->regmap[id], SGMSYS_SGMII_MODE, val); +} + void mtk_sgmii_restart_an(struct mtk_eth *eth, int mac_id) { struct mtk_sgmii *ss = eth->sgmii;