From patchwork Wed May 18 14:55:22 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: 12853753 X-Patchwork-Delegate: kuba@kernel.org 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 979C1C433F5 for ; Wed, 18 May 2022 14:56:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238896AbiERO4O (ORCPT ); Wed, 18 May 2022 10:56:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50820 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239045AbiEROze (ORCPT ); Wed, 18 May 2022 10:55:34 -0400 Received: from pandora.armlinux.org.uk (pandora.armlinux.org.uk [IPv6:2001:4d48:ad52:32c8:5054:ff:fe00:142]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 283631B5FAF for ; Wed, 18 May 2022 07:55:29 -0700 (PDT) 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=J5CTxYXsUvYDq7ri8Aw+CPmE+xQrei/nY6OOqFLwWgU=; b=EG7aJwmexVLtkNmNAR+pyK0jM6 hD6tM6xBOrvqMpZg2qdESvQLdDSxoJAETnOkPOaP1RV9N/BHpY/Ujtp3Y7f4mpbWCM7j/5/s7REfz R1KHhtdQMKmaRo1eVG4hWiJTeTftHr8YK38e6k0McDNY9YJnEu3cmEteazV6NxHohNw2R2A90oq8k HaGgC2RI1PX1UZY87jvjaucWJyNIi2l4M8c8g8Ji1enETognyv3K9bMDLmd28n9Bk5OPf8bWQk7ph 4uhZshNjzSgs/53QJicqJMiGZ3c0rQR7+8YpjlzLqxauLhIrM+ZZxHKoHr7KXgn53DZrOlswnzAWr clgXHfeg==; Received: from e0022681537dd.dyn.armlinux.org.uk ([fd8f:7570:feb6:1:222:68ff:fe15:37dd]:38630 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 1nrL59-0002Gr-1a; Wed, 18 May 2022 15:55:23 +0100 Received: from rmk by rmk-PC.armlinux.org.uk with local (Exim 4.94.2) (envelope-from ) id 1nrL58-00AM5d-U9; Wed, 18 May 2022 15:55:22 +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 11/12] net: mtk_eth_soc: convert code structure to suit split PCS support MIME-Version: 1.0 Content-Disposition: inline Message-Id: Sender: Russell King Date: Wed, 18 May 2022 15:55:22 +0100 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Provide a mtk_pcs structure which encapsulates everything that the PCS functions need (the regmap and ana_rgc3 offset), and use this in the PCS functions. Provide shim functions to convert from the existing "mtk_sgmii_*" interface to the converted PCS functions. Signed-off-by: Russell King (Oracle) --- drivers/net/ethernet/mediatek/mtk_eth_soc.h | 15 ++- drivers/net/ethernet/mediatek/mtk_sgmii.c | 123 +++++++++++--------- 2 files changed, 79 insertions(+), 59 deletions(-) diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.h b/drivers/net/ethernet/mediatek/mtk_eth_soc.h index 1ad5c26f01fb..8bf2d53cbec8 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h @@ -869,16 +869,23 @@ struct mtk_soc_data { /* currently no SoC has more than 2 macs */ #define MTK_MAX_DEVS 2 -/* struct mtk_sgmii - This is the structure holding sgmii regmap and its - * characteristics +/* struct mtk_pcs - This structure holds each sgmii regmap and associated + * 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 */ +struct mtk_pcs { + struct regmap *regmap; + u32 ana_rgc3; +}; +/* struct mtk_sgmii - This is the structure holding sgmii regmap and its + * characteristics + * @pcs Array of individual PCS structures + */ struct mtk_sgmii { - struct regmap *regmap[MTK_MAX_DEVS]; - u32 ana_rgc3; + struct mtk_pcs pcs[MTK_MAX_DEVS]; }; /* struct mtk_eth - This is the main datasructure for holding the state diff --git a/drivers/net/ethernet/mediatek/mtk_sgmii.c b/drivers/net/ethernet/mediatek/mtk_sgmii.c index 4defc1ca41b6..7f257f492926 100644 --- a/drivers/net/ethernet/mediatek/mtk_sgmii.c +++ b/drivers/net/ethernet/mediatek/mtk_sgmii.c @@ -9,90 +9,71 @@ #include #include +#include #include #include "mtk_eth_soc.h" -int mtk_sgmii_init(struct mtk_sgmii *ss, struct device_node *r, u32 ana_rgc3) -{ - struct device_node *np; - int i; - - ss->ana_rgc3 = ana_rgc3; - - for (i = 0; i < MTK_MAX_DEVS; i++) { - np = of_parse_phandle(r, "mediatek,sgmiisys", i); - if (!np) - break; - - ss->regmap[i] = syscon_node_to_regmap(np); - of_node_put(np); - if (IS_ERR(ss->regmap[i])) - return PTR_ERR(ss->regmap[i]); - } - - return 0; -} - /* For SGMII interface mode */ -static int mtk_sgmii_setup_mode_an(struct mtk_sgmii *ss, int id) +static int mtk_pcs_setup_mode_an(struct mtk_pcs *mpcs) { unsigned int val; - if (!ss->regmap[id]) + if (!mpcs->regmap) return -EINVAL; /* Setup the link timer and QPHY power up inside SGMIISYS */ - regmap_write(ss->regmap[id], SGMSYS_PCS_LINK_TIMER, + regmap_write(mpcs->regmap, SGMSYS_PCS_LINK_TIMER, SGMII_LINK_TIMER_DEFAULT); - regmap_read(ss->regmap[id], SGMSYS_SGMII_MODE, &val); + regmap_read(mpcs->regmap, SGMSYS_SGMII_MODE, &val); val |= SGMII_REMOTE_FAULT_DIS; - regmap_write(ss->regmap[id], SGMSYS_SGMII_MODE, val); + regmap_write(mpcs->regmap, SGMSYS_SGMII_MODE, val); - regmap_read(ss->regmap[id], SGMSYS_PCS_CONTROL_1, &val); + regmap_read(mpcs->regmap, SGMSYS_PCS_CONTROL_1, &val); val |= SGMII_AN_RESTART; - regmap_write(ss->regmap[id], SGMSYS_PCS_CONTROL_1, val); + regmap_write(mpcs->regmap, SGMSYS_PCS_CONTROL_1, val); - regmap_read(ss->regmap[id], SGMSYS_QPHY_PWR_STATE_CTRL, &val); + regmap_read(mpcs->regmap, SGMSYS_QPHY_PWR_STATE_CTRL, &val); val &= ~SGMII_PHYA_PWD; - regmap_write(ss->regmap[id], SGMSYS_QPHY_PWR_STATE_CTRL, val); + regmap_write(mpcs->regmap, SGMSYS_QPHY_PWR_STATE_CTRL, val); return 0; + } /* For 1000BASE-X and 2500BASE-X interface modes, which operate at a * fixed speed. */ -static int mtk_sgmii_setup_mode_force(struct mtk_sgmii *ss, int id, - phy_interface_t interface) +static int mtk_pcs_setup_mode_force(struct mtk_pcs *mpcs, + phy_interface_t interface) { unsigned int val; - if (!ss->regmap[id]) + if (!mpcs->regmap) return -EINVAL; - regmap_read(ss->regmap[id], ss->ana_rgc3, &val); + regmap_read(mpcs->regmap, mpcs->ana_rgc3, &val); val &= ~RG_PHY_SPEED_MASK; if (interface == PHY_INTERFACE_MODE_2500BASEX) val |= RG_PHY_SPEED_3_125G; - regmap_write(ss->regmap[id], ss->ana_rgc3, val); + regmap_write(mpcs->regmap, mpcs->ana_rgc3, val); /* Disable SGMII AN */ - regmap_read(ss->regmap[id], SGMSYS_PCS_CONTROL_1, &val); + regmap_read(mpcs->regmap, SGMSYS_PCS_CONTROL_1, &val); val &= ~SGMII_AN_ENABLE; - regmap_write(ss->regmap[id], SGMSYS_PCS_CONTROL_1, val); + regmap_write(mpcs->regmap, SGMSYS_PCS_CONTROL_1, val); /* Set the speed etc but leave the duplex unchanged */ - regmap_read(ss->regmap[id], SGMSYS_SGMII_MODE, &val); + regmap_read(mpcs->regmap, SGMSYS_SGMII_MODE, &val); val &= SGMII_DUPLEX_FULL | ~SGMII_IF_MODE_MASK; val |= SGMII_SPEED_1000; - regmap_write(ss->regmap[id], SGMSYS_SGMII_MODE, val); + regmap_write(mpcs->regmap, SGMSYS_SGMII_MODE, val); /* Release PHYA power down state */ - regmap_read(ss->regmap[id], SGMSYS_QPHY_PWR_STATE_CTRL, &val); + regmap_read(mpcs->regmap, SGMSYS_QPHY_PWR_STATE_CTRL, &val); val &= ~SGMII_PHYA_PWD; - regmap_write(ss->regmap[id], SGMSYS_QPHY_PWR_STATE_CTRL, val); + regmap_write(mpcs->regmap, SGMSYS_QPHY_PWR_STATE_CTRL, val); return 0; } @@ -100,44 +81,76 @@ static int mtk_sgmii_setup_mode_force(struct mtk_sgmii *ss, int id, int mtk_sgmii_config(struct mtk_sgmii *ss, int id, unsigned int mode, phy_interface_t interface) { + struct mtk_pcs *mpcs = &ss->pcs[id]; int err = 0; /* Setup SGMIISYS with the determined property */ if (interface != PHY_INTERFACE_MODE_SGMII) - err = mtk_sgmii_setup_mode_force(ss, id, interface); + err = mtk_pcs_setup_mode_force(mpcs, interface); else if (phylink_autoneg_inband(mode)) - err = mtk_sgmii_setup_mode_an(ss, id); + err = mtk_pcs_setup_mode_an(mpcs); return err; } -/* For 1000BASE-X and 2500BASE-X interface modes */ -void mtk_sgmii_link_up(struct mtk_sgmii *ss, int id, int speed, int duplex) +static void mtk_pcs_restart_an(struct mtk_pcs *mpcs) +{ + 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) { unsigned int val; /* SGMII force duplex setting */ - regmap_read(ss->regmap[id], SGMSYS_SGMII_MODE, &val); + regmap_read(mpcs->regmap, 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); + 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); +} + +int mtk_sgmii_init(struct mtk_sgmii *ss, struct device_node *r, u32 ana_rgc3) +{ + struct device_node *np; + int i; + + for (i = 0; i < MTK_MAX_DEVS; i++) { + np = of_parse_phandle(r, "mediatek,sgmiisys", i); + if (!np) + break; + + ss->pcs[i].ana_rgc3 = ana_rgc3; + ss->pcs[i].regmap = syscon_node_to_regmap(np); + of_node_put(np); + if (IS_ERR(ss->pcs[i].regmap)) + return PTR_ERR(ss->pcs[i].regmap); + } + + return 0; } void mtk_sgmii_restart_an(struct mtk_eth *eth, int mac_id) { - struct mtk_sgmii *ss = eth->sgmii; - unsigned int val, sid; + 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->regmap[sid]) - return; - - regmap_read(ss->regmap[sid], SGMSYS_PCS_CONTROL_1, &val); - val |= SGMII_AN_RESTART; - regmap_write(ss->regmap[sid], SGMSYS_PCS_CONTROL_1, val); + mtk_pcs_restart_an(ð->sgmii->pcs[sid]); }