From patchwork Thu May 27 09:24:14 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Sit, Michael Wei Hong" X-Patchwork-Id: 12283845 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=-17.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, 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 C09C2C4707F for ; Thu, 27 May 2021 09:32:17 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 8BFF5613DE for ; Thu, 27 May 2021 09:32:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8BFF5613DE Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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:MIME-Version:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Cc:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=64Ob099BS0FeMnU9AwNgOrx88LF4IzFhd9MZ+9kvETM=; b=FrP+rhjUyfc143 aYW9EOim0fpYgSfQ2vieW8RmSzNsLPX7/3M+63pNXUcFtRlytADTJpZdLiloT3arrZw/vFbXPrspz y+NL8kr9tTAbMJ4QPda27MeVLUBPzt5MgTBaAJ6Fh3mzp7iL2YvPIBFcKiU2pDZ2yP2TCD0bfuFYR NxbPCynRV5g8QvT8I24ksnayduI7Mvy03eEtz401jommxwM8YiRTkCjBVXf1SVROGixN8B1GtSU5Q ODgjBnN53WGCFuRxm9zDWNO9qUFoxTCy0SGjPfdxA/5nFnw1J7TYjKcnQ2EwkN543fk+skbvZSlF1 xl+PJSHzrlDO6YMdrfzQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1lmCLg-004Ljm-IN; Thu, 27 May 2021 09:30:40 +0000 Received: from mga07.intel.com ([134.134.136.100]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1lmCLQ-004Lbr-Nj for linux-arm-kernel@lists.infradead.org; Thu, 27 May 2021 09:30:26 +0000 IronPort-SDR: zM9KluLrGRFofvmn8Y5YCon0vVujghFiYKHo6kLIjs4m70Uur6e/zbW3pcY1huEipo73JLR3Gk zjJ5izv+Aezw== X-IronPort-AV: E=McAfee;i="6200,9189,9996"; a="266580774" X-IronPort-AV: E=Sophos;i="5.82,334,1613462400"; d="scan'208";a="266580774" Received: from orsmga007.jf.intel.com ([10.7.209.58]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 May 2021 02:30:03 -0700 IronPort-SDR: sh24HNZMbW16SOMgXIHjWqiifGNRBw57VVyswOQODS27j2U9272bApDfSbVBphMbQpezjVbV4Y 96GHLLrQx33g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.82,334,1613462400"; d="scan'208";a="436485889" Received: from mike-ilbpg1.png.intel.com ([10.88.227.76]) by orsmga007.jf.intel.com with ESMTP; 27 May 2021 02:29:58 -0700 From: Michael Sit Wei Hong To: Jose.Abreu@synopsys.com, andrew@lunn.ch, hkallweit1@gmail.com, linux@armlinux.org.uk, kuba@kernel.org, netdev@vger.kernel.org, peppe.cavallaro@st.com, alexandre.torgue@foss.st.com, davem@davemloft.net, mcoquelin.stm32@gmail.com, weifeng.voon@intel.com, boon.leong.ong@intel.com, tee.min.tan@intel.com, vee.khee.wong@linux.intel.com, vee.khee.wong@intel.com, michael.wei.hong.sit@intel.com, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next v3 2/3] net: pcs: add 2500BASEX support for Intel mGbE controller Date: Thu, 27 May 2021 17:24:14 +0800 Message-Id: <20210527092415.25205-3-michael.wei.hong.sit@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210527092415.25205-1-michael.wei.hong.sit@intel.com> References: <20210527092415.25205-1-michael.wei.hong.sit@intel.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210527_023024_850317_75691CC8 X-CRM114-Status: GOOD ( 14.08 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Voon Weifeng XPCS IP supports 2500BASEX as PHY interface. It is configured as autonegotiation disable to cater for PHYs that does not supports 2500BASEX autonegotiation. v2: Add supported link speed masking. v3: Restructure to introduce xpcs_config_2500basex() used to configure the xpcs for 2.5G speeds. Added 2500BASEX specific information for configuration. Signed-off-by: Voon Weifeng Signed-off-by: Michael Sit Wei Hong --- drivers/net/pcs/pcs-xpcs.c | 60 ++++++++++++++++++++++++++++++++++++ include/linux/pcs/pcs-xpcs.h | 1 + 2 files changed, 61 insertions(+) diff --git a/drivers/net/pcs/pcs-xpcs.c b/drivers/net/pcs/pcs-xpcs.c index aa985a5aae8d..98f822e1e5d5 100644 --- a/drivers/net/pcs/pcs-xpcs.c +++ b/drivers/net/pcs/pcs-xpcs.c @@ -16,6 +16,7 @@ #define SYNOPSYS_XPCS_10GKR_ID 0x7996ced0 #define SYNOPSYS_XPCS_XLGMII_ID 0x7996ced0 #define SYNOPSYS_XPCS_SGMII_ID 0x7996ced0 +#define SYNOPSYS_XPCS_2500BASEX_ID 0x7996ced0 #define SYNOPSYS_XPCS_MASK 0xffffffff /* Vendor regs access */ @@ -60,9 +61,14 @@ /* Clause 37 Defines */ /* VR MII MMD registers offsets */ +#define DW_VR_MII_MMD_CTRL 0x0000 #define DW_VR_MII_DIG_CTRL1 0x8000 #define DW_VR_MII_AN_CTRL 0x8001 #define DW_VR_MII_AN_INTR_STS 0x8002 + +/* Enable 2.5G Mode */ +#define DW_VR_MII_DIG_CTRL1_2G5_EN BIT(2) + /* EEE Mode Control Register */ #define DW_VR_MII_EEE_MCTRL0 0x8006 #define DW_VR_MII_EEE_MCTRL1 0x800b @@ -89,6 +95,11 @@ #define DW_VR_MII_C37_ANSGM_SP_1000 0x2 #define DW_VR_MII_C37_ANSGM_SP_LNKSTS BIT(4) +/* SR MII MMD Control defines */ +#define AN_CL37_EN BIT(12) /* Enable Clause 37 auto-nego */ +#define SGMII_SPEED_SS13 BIT(13) /* SGMII speed along with SS6 */ +#define SGMII_SPEED_SS6 BIT(6) /* SGMII speed along with SS13 */ + /* VR MII EEE Control 0 defines */ #define DW_VR_MII_EEE_LTX_EN BIT(0) /* LPI Tx Enable */ #define DW_VR_MII_EEE_LRX_EN BIT(1) /* LPI Rx Enable */ @@ -161,6 +172,14 @@ static const int xpcs_sgmii_features[] = { __ETHTOOL_LINK_MODE_MASK_NBITS, }; +static const int xpcs_2500basex_features[] = { + ETHTOOL_LINK_MODE_Asym_Pause_BIT, + ETHTOOL_LINK_MODE_Autoneg_BIT, + ETHTOOL_LINK_MODE_2500baseX_Full_BIT, + ETHTOOL_LINK_MODE_2500baseT_Full_BIT, + __ETHTOOL_LINK_MODE_MASK_NBITS, +}; + static const phy_interface_t xpcs_usxgmii_interfaces[] = { PHY_INTERFACE_MODE_USXGMII, PHY_INTERFACE_MODE_MAX, @@ -181,6 +200,11 @@ static const phy_interface_t xpcs_sgmii_interfaces[] = { PHY_INTERFACE_MODE_MAX, }; +static const phy_interface_t xpcs_2500basex_interfaces[] = { + PHY_INTERFACE_MODE_2500BASEX, + PHY_INTERFACE_MODE_MAX, +}; + static struct xpcs_id { u32 id; u32 mask; @@ -212,6 +236,12 @@ static struct xpcs_id { .supported = xpcs_sgmii_features, .interface = xpcs_sgmii_interfaces, .an_mode = DW_AN_C37_SGMII, + }, { + .id = SYNOPSYS_XPCS_2500BASEX_ID, + .mask = SYNOPSYS_XPCS_MASK, + .supported = xpcs_2500basex_features, + .interface = xpcs_2500basex_interfaces, + .an_mode = DW_2500BASEX, }, }; @@ -275,6 +305,7 @@ static int xpcs_soft_reset(struct mdio_xpcs_args *xpcs) dev = MDIO_MMD_PCS; break; case DW_AN_C37_SGMII: + case DW_2500BASEX: dev = MDIO_MMD_VEND2; break; default: @@ -741,6 +772,30 @@ static int xpcs_config_aneg_c37_sgmii(struct mdio_xpcs_args *xpcs) return xpcs_write(xpcs, MDIO_MMD_VEND2, DW_VR_MII_DIG_CTRL1, ret); } +static int xpcs_config_2500basex(struct mdio_xpcs_args *xpcs) +{ + int ret; + + ret = xpcs_read(xpcs, MDIO_MMD_VEND2, DW_VR_MII_DIG_CTRL1); + if (ret < 0) + return ret; + ret |= DW_VR_MII_DIG_CTRL1_2G5_EN; + ret &= ~DW_VR_MII_DIG_CTRL1_MAC_AUTO_SW; + ret = xpcs_write(xpcs, MDIO_MMD_VEND2, DW_VR_MII_DIG_CTRL1, ret); + if (ret < 0) + return ret; + + ret = xpcs_read(xpcs, MDIO_MMD_VEND2, DW_VR_MII_MMD_CTRL); + if (ret < 0) + return ret; + ret &= ~AN_CL37_EN; + ret |= SGMII_SPEED_SS6; + ret &= ~SGMII_SPEED_SS13; + return xpcs_write(xpcs, MDIO_MMD_VEND2, DW_VR_MII_MMD_CTRL, ret); + + return 0; +} + static int xpcs_config(struct mdio_xpcs_args *xpcs, const struct phylink_link_state *state) { @@ -759,6 +814,11 @@ static int xpcs_config(struct mdio_xpcs_args *xpcs, if (ret) return ret; break; + case DW_2500BASEX: + ret = xpcs_config_2500basex(xpcs); + if (ret) + return ret; + break; default: return -1; } diff --git a/include/linux/pcs/pcs-xpcs.h b/include/linux/pcs/pcs-xpcs.h index 5938ced805f4..b358bbb34bd3 100644 --- a/include/linux/pcs/pcs-xpcs.h +++ b/include/linux/pcs/pcs-xpcs.h @@ -13,6 +13,7 @@ /* AN mode */ #define DW_AN_C73 1 #define DW_AN_C37_SGMII 2 +#define DW_2500BASEX 3 struct mdio_xpcs_args { __ETHTOOL_DECLARE_LINK_MODE_MASK(supported);