From patchwork Wed May 18 14:55:28 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: 12853781 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 15542C433F5 for ; Wed, 18 May 2022 15:00:00 +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=870dnJKDLfWOe14Kgd/pouDW5arFbUZcyn6tfZkXtwc=; b=HV3ouJ85ORW4AF imB9bKlfW2YqOJKgT0BY/5dpbOEKmoRoOfEoWDhXPGn7xnoB2HwWLifqKomG6Fd9SkOjeEuU/M7lq uIL4erpw3F2KYAcFK5wBiKDa6CScdkryf0RG98Dap2irdRokSxbTR9IeRmI7liqtUHWHhe7jakX5V P9zFSK/wpK+DHd2b3vK3+ddHU0dVjozE9cIk1qjjNHId+Ngzt0+MPtpETMQwmMdRpNsBhtSD09rlh u4HpcCfF5G5d8BSvS0O6iJx2nsqFCY7cPki0a/LT+oqAUMz1KfwPa0BygTiP7dWZ0gQY6CuJMBPig 6kCw7o5ybaIuDN/UbOeQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nrL9V-002fnJ-Op; Wed, 18 May 2022 14:59:53 +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 1nrL5G-002d6I-Pj; Wed, 18 May 2022 14:55:32 +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=0dFOb+1yYacxBaCOWRJq/2iRXbeL1umpEPxlpbQ+DQo=; b=pQd7MuKY1G9sSg7iok+1NnvzG0 w5ZExz6NhxPaqeWkwzyQ6R1iGt/TOkGHDsoK+XCPpPwmj31S8PP6gKwaiiRtMva2Q7h1YKk3j6yFh 5j/fQQ2h5bQEBm4pzEi0wTD8OgJmXOP5HFGvnjjov/0r8h6mTYVvOGjoGmZoU6LkvRfxnAwqXqtJb BAw5syUgzCjGi+qAhh2hGFEKXE6dikymP1MLAYKrIw4zdyAe0gJSNjc4cZywz3WD0e5HKZQPp03Qh 7KjQBni+mK9S+gCI18XoKgvhj5h8s1Een1w9iYoaHPrrRTh5LjD1K+BjZ0mgag5F5S2ZirpnlZbHX Q9vRNBcA==; Received: from e0022681537dd.dyn.armlinux.org.uk ([fd8f:7570:feb6:1:222:68ff:fe15:37dd]:38634 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 1nrL5E-0002H8-5w; Wed, 18 May 2022 15:55:28 +0100 Received: from rmk by rmk-PC.armlinux.org.uk with local (Exim 4.94.2) (envelope-from ) id 1nrL5E-00AM5k-1i; Wed, 18 May 2022 15:55:28 +0100 In-Reply-To: References: From: "Russell King (Oracle)" To: "David S. Miller" , Jakub Kicinski Cc: Marek =?iso-8859-1?q?Beh=FAn?= , Felix Fietkau , John Crispin , linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, Mark Lee , Matthias Brugger , netdev@vger.kernel.org, Paolo Abeni , Sean Wang , Eric Dumazet Subject: [PATCH net-next 12/12] net: mtk_eth_soc: partially convert to phylink_pcs MIME-Version: 1.0 Content-Disposition: inline Message-Id: Date: Wed, 18 May 2022 15:55:28 +0100 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220518_075531_058273_AE95AE7C X-CRM114-Status: GOOD ( 19.21 ) 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 Partially convert mtk_eth_soc to phylink_pcs, moving the configuration, link up and AN restart over. However, it seems mac_pcs_get_state() doesn't actually get the state from the PCS, so we can't convert that over without a better understanding of the hardware. Signed-off-by: Russell King (Oracle) --- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 49 ++++++++---------- drivers/net/ethernet/mediatek/mtk_eth_soc.h | 7 ++- drivers/net/ethernet/mediatek/mtk_sgmii.c | 55 +++++++++++---------- 3 files changed, 53 insertions(+), 58 deletions(-) diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index 6dca98de0067..16f131445d8b 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -263,6 +263,25 @@ static void mtk_gmac0_rgmii_adjust(struct mtk_eth *eth, mtk_w32(eth, val, TRGMII_TCK_CTRL); } +static struct phylink_pcs *mtk_mac_select_pcs(struct phylink_config *config, + phy_interface_t interface) +{ + struct mtk_mac *mac = container_of(config, struct mtk_mac, + phylink_config); + struct mtk_eth *eth = mac->hw; + unsigned int sid; + + if (interface == PHY_INTERFACE_MODE_SGMII || + phy_interface_mode_is_8023z(interface)) { + sid = (MTK_HAS_CAPS(eth->soc->caps, MTK_SHARED_SGMII)) ? + 0 : mac->id; + + return mtk_sgmii_select_pcs(eth->sgmii, sid); + } + + return NULL; +} + static void mtk_mac_config(struct phylink_config *config, unsigned int mode, const struct phylink_link_state *state) { @@ -270,7 +289,7 @@ static void mtk_mac_config(struct phylink_config *config, unsigned int mode, phylink_config); struct mtk_eth *eth = mac->hw; int val, ge_mode, err = 0; - u32 sid, i; + u32 i; /* MT76x8 has no hardware settings between for the MAC */ if (!MTK_HAS_CAPS(eth->soc->caps, MTK_SOC_MT7628) && @@ -391,15 +410,6 @@ static void mtk_mac_config(struct phylink_config *config, unsigned int mode, SYSCFG0_SGMII_MASK, ~(u32)SYSCFG0_SGMII_MASK); - /* Decide how GMAC and SGMIISYS be mapped */ - sid = (MTK_HAS_CAPS(eth->soc->caps, MTK_SHARED_SGMII)) ? - 0 : mac->id; - - /* Setup SGMIISYS with the determined property */ - err = mtk_sgmii_config(eth->sgmii, sid, mode, state->interface); - if (err) - goto init_err; - /* Save the syscfg0 value for mac_finish */ mac->syscfg0 = val; } else if (phylink_autoneg_inband(mode)) { @@ -479,14 +489,6 @@ static void mtk_mac_pcs_get_state(struct phylink_config *config, state->pause |= MLO_PAUSE_TX; } -static void mtk_mac_an_restart(struct phylink_config *config) -{ - struct mtk_mac *mac = container_of(config, struct mtk_mac, - phylink_config); - - mtk_sgmii_restart_an(mac->hw, mac->id); -} - static void mtk_mac_link_down(struct phylink_config *config, unsigned int mode, phy_interface_t interface) { @@ -507,15 +509,6 @@ static void mtk_mac_link_up(struct phylink_config *config, phylink_config); 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 | @@ -548,8 +541,8 @@ static void mtk_mac_link_up(struct phylink_config *config, static const struct phylink_mac_ops mtk_phylink_ops = { .validate = phylink_generic_validate, + .mac_select_pcs = mtk_mac_select_pcs, .mac_pcs_get_state = mtk_mac_pcs_get_state, - .mac_an_restart = mtk_mac_an_restart, .mac_config = mtk_mac_config, .mac_finish = mtk_mac_finish, .mac_link_down = mtk_mac_link_down, diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.h b/drivers/net/ethernet/mediatek/mtk_eth_soc.h index 8bf2d53cbec8..c1d46eb281ea 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h @@ -874,10 +874,12 @@ struct mtk_soc_data { * @regmap: The register map pointing at the range used to setup * SGMII modes * @ana_rgc3: The offset refers to register ANA_RGC3 related to regmap + * @pcs: Phylink PCS structure */ struct mtk_pcs { struct regmap *regmap; u32 ana_rgc3; + struct phylink_pcs pcs; }; /* struct mtk_sgmii - This is the structure holding sgmii regmap and its @@ -1020,12 +1022,9 @@ void mtk_stats_update_mac(struct mtk_mac *mac); void mtk_w32(struct mtk_eth *eth, u32 val, unsigned reg); u32 mtk_r32(struct mtk_eth *eth, unsigned reg); +struct phylink_pcs *mtk_sgmii_select_pcs(struct mtk_sgmii *ss, int id); int mtk_sgmii_init(struct mtk_sgmii *ss, struct device_node *np, u32 ana_rgc3); -int mtk_sgmii_config(struct mtk_sgmii *ss, int id, unsigned int mode, - phy_interface_t interface); -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); int mtk_gmac_gephy_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 7f257f492926..736839c84130 100644 --- a/drivers/net/ethernet/mediatek/mtk_sgmii.c +++ b/drivers/net/ethernet/mediatek/mtk_sgmii.c @@ -14,14 +14,16 @@ #include "mtk_eth_soc.h" +static struct mtk_pcs *pcs_to_mtk_pcs(struct phylink_pcs *pcs) +{ + return container_of(pcs, struct mtk_pcs, pcs); +} + /* For SGMII interface mode */ static int mtk_pcs_setup_mode_an(struct mtk_pcs *mpcs) { unsigned int val; - if (!mpcs->regmap) - return -EINVAL; - /* Setup the link timer and QPHY power up inside SGMIISYS */ regmap_write(mpcs->regmap, SGMSYS_PCS_LINK_TIMER, SGMII_LINK_TIMER_DEFAULT); @@ -50,9 +52,6 @@ static int mtk_pcs_setup_mode_force(struct mtk_pcs *mpcs, { unsigned int val; - if (!mpcs->regmap) - return -EINVAL; - regmap_read(mpcs->regmap, mpcs->ana_rgc3, &val); val &= ~RG_PHY_SPEED_MASK; if (interface == PHY_INTERFACE_MODE_2500BASEX) @@ -78,10 +77,12 @@ static int mtk_pcs_setup_mode_force(struct mtk_pcs *mpcs, return 0; } -int mtk_sgmii_config(struct mtk_sgmii *ss, int id, unsigned int mode, - phy_interface_t interface) +static int mtk_pcs_config(struct phylink_pcs *pcs, unsigned int mode, + phy_interface_t interface, + const unsigned long *advertising, + bool permit_pause_to_mac) { - struct mtk_pcs *mpcs = &ss->pcs[id]; + struct mtk_pcs *mpcs = pcs_to_mtk_pcs(pcs); int err = 0; /* Setup SGMIISYS with the determined property */ @@ -93,22 +94,25 @@ int mtk_sgmii_config(struct mtk_sgmii *ss, int id, unsigned int mode, return err; } -static void mtk_pcs_restart_an(struct mtk_pcs *mpcs) +static void mtk_pcs_restart_an(struct phylink_pcs *pcs) { + struct mtk_pcs *mpcs = pcs_to_mtk_pcs(pcs); unsigned int val; - if (!mpcs->regmap) - return; - regmap_read(mpcs->regmap, SGMSYS_PCS_CONTROL_1, &val); val |= SGMII_AN_RESTART; regmap_write(mpcs->regmap, SGMSYS_PCS_CONTROL_1, val); } -static void mtk_pcs_link_up(struct mtk_pcs *mpcs, int speed, int duplex) +static void mtk_pcs_link_up(struct phylink_pcs *pcs, unsigned int mode, + phy_interface_t interface, int speed, int duplex) { + struct mtk_pcs *mpcs = pcs_to_mtk_pcs(pcs); unsigned int val; + if (!phy_interface_mode_is_8023z(interface)) + return; + /* SGMII force duplex setting */ regmap_read(mpcs->regmap, SGMSYS_SGMII_MODE, &val); val &= ~SGMII_DUPLEX_FULL; @@ -118,11 +122,11 @@ static void mtk_pcs_link_up(struct mtk_pcs *mpcs, int speed, int duplex) regmap_write(mpcs->regmap, SGMSYS_SGMII_MODE, val); } -/* For 1000BASE-X and 2500BASE-X interface modes */ -void mtk_sgmii_link_up(struct mtk_sgmii *ss, int id, int speed, int duplex) -{ - mtk_pcs_link_up(&ss->pcs[id], speed, duplex); -} +static const struct phylink_pcs_ops mtk_pcs_ops = { + .pcs_config = mtk_pcs_config, + .pcs_an_restart = mtk_pcs_restart_an, + .pcs_link_up = mtk_pcs_link_up, +}; int mtk_sgmii_init(struct mtk_sgmii *ss, struct device_node *r, u32 ana_rgc3) { @@ -139,18 +143,17 @@ int mtk_sgmii_init(struct mtk_sgmii *ss, struct device_node *r, u32 ana_rgc3) of_node_put(np); if (IS_ERR(ss->pcs[i].regmap)) return PTR_ERR(ss->pcs[i].regmap); + + ss->pcs[i].pcs.ops = &mtk_pcs_ops; } return 0; } -void mtk_sgmii_restart_an(struct mtk_eth *eth, int mac_id) +struct phylink_pcs *mtk_sgmii_select_pcs(struct mtk_sgmii *ss, int id) { - unsigned int sid; - - /* Decide how GMAC and SGMIISYS be mapped */ - sid = (MTK_HAS_CAPS(eth->soc->caps, MTK_SHARED_SGMII)) ? - 0 : mac_id; + if (!ss->pcs[id].regmap) + return NULL; - mtk_pcs_restart_an(ð->sgmii->pcs[sid]); + return &ss->pcs[id].pcs; }