From patchwork Wed Apr 19 08:27:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiawen Wu X-Patchwork-Id: 675401 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 72297C77B7C for ; Wed, 19 Apr 2023 08:29:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232010AbjDSI3h (ORCPT ); Wed, 19 Apr 2023 04:29:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38996 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232592AbjDSI3e (ORCPT ); Wed, 19 Apr 2023 04:29:34 -0400 Received: from smtpbgeu2.qq.com (smtpbgeu2.qq.com [18.194.254.142]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 20F313AB2; Wed, 19 Apr 2023 01:29:17 -0700 (PDT) X-QQ-mid: bizesmtp68t1681892952t3o57xp4 Received: from wxdbg.localdomain.com ( [183.129.236.74]) by bizesmtp.qq.com (ESMTP) with id ; Wed, 19 Apr 2023 16:29:11 +0800 (CST) X-QQ-SSF: 01400000000000I0Z000000A0000000 X-QQ-FEAT: W+onFc5Tw4O9wTyBujilq+8QALH5g6xJ1wUHbVkY3NbmO9eje8qhx4O0QBKXQ PzhZ77PqzMJquwuog6+z+sBcnnRwsBZskxqZm7R0U9uH+sUZpxhHous09ZIwoyzstXn3q9k C+zz1UCvNDy+Qxyn0UFCewqC04TitoCn79c4ku77fyjWbNvEzFJVboChy//lc/ZHDykqdKB pR9lzoALq8MNEoJf7KD7lTsp1FHICUZLfY1y53WCQmWJ0wYgeUNoQkRSdJKoKwVyRlH37a1 zW6sjKnwIEh26mMrmF6D6N6RLRlsMB9xwWIckIlODcPSbHAS5oodPVGNjdMd632zo1Kjtsx 79iElgJWv2uueB0hH/RzduQGoEXZ5/p86ZD2aX1JzKipqOWl8aad1cLI5AgMWK2ai6oRRwS jOg0fbT+BjkJzLaDPF/yUw== X-QQ-GoodBg: 2 X-BIZMAIL-ID: 11750867271277249506 From: Jiawen Wu To: netdev@vger.kernel.org, linux@armlinux.org.uk Cc: linux-i2c@vger.kernel.org, linux-gpio@vger.kernel.org, olteanv@gmail.com, mengyuanlou@net-swift.com, Jiawen Wu Subject: [PATCH net-next v3 7/8] net: txgbe: Implement phylink pcs Date: Wed, 19 Apr 2023 16:27:38 +0800 Message-Id: <20230419082739.295180-8-jiawenwu@trustnetic.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20230419082739.295180-1-jiawenwu@trustnetic.com> References: <20230419082739.295180-1-jiawenwu@trustnetic.com> MIME-Version: 1.0 X-QQ-SENDSIZE: 520 Feedback-ID: bizesmtp:trustnetic.com:qybglogicsvr:qybglogicsvr5 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Register MDIO bus for PCS layer to use Synopsys designware XPCS, support 10GBASE-R interface to the controller. Signed-off-by: Jiawen Wu --- drivers/net/ethernet/wangxun/Kconfig | 1 + .../net/ethernet/wangxun/txgbe/txgbe_phy.c | 86 +++++++++++++++++++ .../net/ethernet/wangxun/txgbe/txgbe_type.h | 6 ++ 3 files changed, 93 insertions(+) diff --git a/drivers/net/ethernet/wangxun/Kconfig b/drivers/net/ethernet/wangxun/Kconfig index 9b69c3d53d65..dde979b623fa 100644 --- a/drivers/net/ethernet/wangxun/Kconfig +++ b/drivers/net/ethernet/wangxun/Kconfig @@ -43,6 +43,7 @@ config TXGBE select I2C_DESIGNWARE_PLATFORM select GPIOLIB_IRQCHIP select GPIOLIB + select PCS_XPCS select LIBWX select SFP help diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c b/drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c index d98d283dd0db..6dc5e2f5ae59 100644 --- a/drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c +++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c @@ -7,6 +7,8 @@ #include #include #include +#include +#include #include #include @@ -75,6 +77,82 @@ static int txgbe_swnodes_register(struct txgbe *txgbe) return software_node_register_node_group(nodes->group); } +static int txgbe_pcs_read(struct mii_bus *bus, int addr, int devnum, int regnum) +{ + struct wx *wx = bus->priv; + u32 offset, val; + + offset = devnum << 16 | regnum; + + /* Set the LAN port indicator to IDA_ADDR */ + wr32(wx, TXGBE_XPCS_IDA_ADDR, offset); + + /* Read the data from IDA_DATA register */ + val = rd32(wx, TXGBE_XPCS_IDA_DATA); + + return (u16)val; +} + +static int txgbe_pcs_write(struct mii_bus *bus, int addr, int devnum, int regnum, u16 val) +{ + struct wx *wx = bus->priv; + u32 offset; + + offset = devnum << 16 | regnum; + + /* Set the LAN port indicator to IDA_ADDR */ + wr32(wx, TXGBE_XPCS_IDA_ADDR, offset); + + /* Write the data to IDA_DATA register */ + wr32(wx, TXGBE_XPCS_IDA_DATA, val); + + return 0; +} + +static int txgbe_mdio_pcs_init(struct txgbe *txgbe) +{ + struct mdio_device *mdiodev; + struct wx *wx = txgbe->wx; + struct mii_bus *mii_bus; + struct dw_xpcs *xpcs; + struct pci_dev *pdev; + int ret = 0; + + pdev = wx->pdev; + + mii_bus = devm_mdiobus_alloc(&pdev->dev); + if (!mii_bus) + return -ENOMEM; + + mii_bus->name = "txgbe_pcs_mdio_bus"; + mii_bus->read_c45 = &txgbe_pcs_read; + mii_bus->write_c45 = &txgbe_pcs_write; + mii_bus->parent = &pdev->dev; + mii_bus->phy_mask = ~0; + mii_bus->priv = wx; + snprintf(mii_bus->id, MII_BUS_ID_SIZE, "txgbe_pcs-%x", + (pdev->bus->number << 8) | pdev->devfn); + + ret = devm_mdiobus_register(&pdev->dev, mii_bus); + if (ret) + return ret; + + mdiodev = mdio_device_create(mii_bus, 0); + if (IS_ERR(mdiodev)) + return PTR_ERR(mdiodev); + + xpcs = xpcs_create(mdiodev, PHY_INTERFACE_MODE_10GBASER); + if (IS_ERR_OR_NULL(xpcs)) { + mdio_device_free(mdiodev); + return PTR_ERR(xpcs); + } + + txgbe->mdiodev = mdiodev; + txgbe->xpcs = xpcs; + + return 0; +} + static int txgbe_i2c_register(struct txgbe *txgbe) { struct pci_dev *pdev = txgbe->wx->pdev; @@ -356,6 +434,12 @@ int txgbe_init_phy(struct txgbe *txgbe) return ret; } + ret = txgbe_mdio_pcs_init(txgbe); + if (ret) { + wx_err(txgbe->wx, "failed to init mdio pcs: %d\n", ret); + goto err; + } + ret = txgbe_i2c_register(txgbe); if (ret) { wx_err(txgbe->wx, "failed to init i2c interface: %d\n", ret); @@ -384,6 +468,8 @@ int txgbe_init_phy(struct txgbe *txgbe) void txgbe_remove_phy(struct txgbe *txgbe) { + if (txgbe->xpcs) + xpcs_destroy(txgbe->xpcs); if (txgbe->sfp_dev) platform_device_unregister(txgbe->sfp_dev); if (txgbe->i2c_dev) diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h b/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h index 334803e6a5de..89a635593ae2 100644 --- a/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h +++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h @@ -83,6 +83,10 @@ /* I2C registers */ #define TXGBE_I2C_BASE 0x14900 +/************************************** ETH PHY ******************************/ +#define TXGBE_XPCS_IDA_ADDR 0x13000 +#define TXGBE_XPCS_IDA_DATA 0x13004 + /* Part Number String Length */ #define TXGBE_PBANUM_LENGTH 32 @@ -174,6 +178,8 @@ struct txgbe_nodes { struct txgbe { struct wx *wx; struct txgbe_nodes nodes; + struct mdio_device *mdiodev; + struct dw_xpcs *xpcs; struct platform_device *sfp_dev; struct platform_device *i2c_dev; struct gpio_chip *gpio;