From patchwork Thu Sep 23 14:08:03 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 12513017 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 X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, 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 0D5B1C433FE for ; Thu, 23 Sep 2021 14:08:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E866760F44 for ; Thu, 23 Sep 2021 14:08:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241651AbhIWOKT (ORCPT ); Thu, 23 Sep 2021 10:10:19 -0400 Received: from relmlor2.renesas.com ([210.160.252.172]:47424 "EHLO relmlie6.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S241642AbhIWOKS (ORCPT ); Thu, 23 Sep 2021 10:10:18 -0400 X-IronPort-AV: E=Sophos;i="5.85,316,1624287600"; d="scan'208";a="94936092" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 23 Sep 2021 23:08:46 +0900 Received: from localhost.localdomain (unknown [10.226.92.2]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id AAA1B437F0B5; Thu, 23 Sep 2021 23:08:43 +0900 (JST) From: Biju Das To: "David S. Miller" , Jakub Kicinski Cc: Biju Das , Sergey Shtylyov , Lad Prabhakar , Andrew Lunn , Sergei Shtylyov , Geert Uytterhoeven , Adam Ford , Yoshihiro Shimoda , netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Chris Paterson , Biju Das Subject: [RFC/PATCH 08/18] ravb: Add mii_rgmii_selection to struct ravb_hw_info Date: Thu, 23 Sep 2021 15:08:03 +0100 Message-Id: <20210923140813.13541-9-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210923140813.13541-1-biju.das.jz@bp.renesas.com> References: <20210923140813.13541-1-biju.das.jz@bp.renesas.com> Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org X-Patchwork-State: RFC E-MAC on RZ/G2L supports MII/RGMII selection. Add a mii_rgmii_selection feature bit to struct ravb_hw_info to support this for RZ/G2L. Currently only selecting RGMII is supported. Signed-off-by: Biju Das --- drivers/net/ethernet/renesas/ravb.h | 17 +++++++++++++++++ drivers/net/ethernet/renesas/ravb_main.c | 6 ++++++ 2 files changed, 23 insertions(+) diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h index bce480fadb91..dfaf3121da44 100644 --- a/drivers/net/ethernet/renesas/ravb.h +++ b/drivers/net/ethernet/renesas/ravb.h @@ -189,6 +189,8 @@ enum ravb_reg { PIR = 0x0520, PSR = 0x0528, PIPR = 0x052c, + CXR31 = 0x0530, /* Documented for RZ/G2L only */ + CXR35 = 0x0540, /* Documented for RZ/G2L only */ MPR = 0x0558, PFTCR = 0x055c, PFRCR = 0x0560, @@ -951,6 +953,20 @@ enum RAVB_QUEUE { RAVB_NC, /* Network Control Queue */ }; +enum CXR31_BIT { + CXR31_SEL_LINK0 = 0x00000001, + CXR31_SEL_LINK1 = 0x00000008, +}; + +enum CXR35_BIT { + CXR35_SEL_MODIN = 0x00000100, +}; + +enum CSR0_BIT { + CSR0_TPE = 0x00000010, + CSR0_RPE = 0x00000020, +}; + #define DBAT_ENTRY_NUM 22 #define RX_QUEUE_OFFSET 4 #define NUM_RX_QUEUE 2 @@ -1008,6 +1024,7 @@ struct ravb_hw_info { unsigned ccc_gac:1; /* AVB-DMAC has gPTP support active in config mode */ unsigned multi_tsrq:1; /* AVB-DMAC has MULTI TSRQ */ unsigned magic_pkt:1; /* E-MAC supports magic packet detection */ + unsigned mii_rgmii_selection:1; /* E-MAC supports mii/rgmii selection */ }; struct ravb_private { diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index 529364d8f7fb..5d18681582b9 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -1128,6 +1128,7 @@ static int ravb_phy_init(struct net_device *ndev) { struct device_node *np = ndev->dev.parent->of_node; struct ravb_private *priv = netdev_priv(ndev); + const struct ravb_hw_info *info = priv->info; struct phy_device *phydev; struct device_node *pn; phy_interface_t iface; @@ -1173,6 +1174,10 @@ static int ravb_phy_init(struct net_device *ndev) netdev_info(ndev, "limited PHY to 100Mbit/s\n"); } + if (info->mii_rgmii_selection && + priv->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) + ravb_write(ndev, ravb_read(ndev, CXR35) | CXR35_SEL_MODIN, CXR35); + /* 10BASE, Pause and Asym Pause is not supported */ phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_10baseT_Half_BIT); phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_10baseT_Full_BIT); @@ -2132,6 +2137,7 @@ static const struct ravb_hw_info rgeth_hw_info = { .aligned_tx = 1, .tx_counters = 1, .no_gptp = 1, + .mii_rgmii_selection = 1, }; static const struct of_device_id ravb_match_table[] = {