From patchwork Sat Feb 22 09:49:32 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans-Frieder Vogt via B4 Relay X-Patchwork-Id: 13986574 X-Patchwork-Delegate: kuba@kernel.org Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 93F1A207A27; Sat, 22 Feb 2025 09:50:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740217802; cv=none; b=TeAhDi6meX5K5pCEwMxzby4+ob7rnYJk01dbTkIK7MovJ3oyvK0yeqbILvephg7FtRUdyGRdNcHLgUoJLnXgumj94Q6swegYLj3ln+uVc87gXmsQFUpqOVY0LZEA5mbOFvMA3wAoC9N7Y7V+2jrVYCLd2q/xOOejNvKIQmB5fSU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740217802; c=relaxed/simple; bh=+dyhnz81otLKfiT/QagXTHUdWYlrIsWNclojYvheN+U=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=amHm+bUqPYj5RY97PjsKQINCnuDEiSTOfDpIsFilIZ8qlJmEtV8At+fHfWCIMMIjfPalMPYemVyl9beyT5rTqtaWcsS6bfAz0Ku9amgAbx1CRwHq9yrgQhNbnOi9GwdapMe8A55mejmo7heB9K1BN/Tq4tF3T80b8apfQrlGL9c= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=EOIvkrjB; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="EOIvkrjB" Received: by smtp.kernel.org (Postfix) with ESMTPS id 33F72C4CEED; Sat, 22 Feb 2025 09:50:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1740217802; bh=+dyhnz81otLKfiT/QagXTHUdWYlrIsWNclojYvheN+U=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=EOIvkrjB2EycjLFR0kmLh8wZkodRd6lsnJJN9FMXTVll0tgCJWHsi52yzqUCo7NoK mrtPyrSVYxN1tkivlq1DXH9pQk5iAdX/b897uilYPD0Qkjj0kyYk5lUgzXe7SikLdi JCfDWLiYs5OXkNo64716GvrwBcRSNbl5k4d4qg0xxffD8mv7f7ov3Mvk5d4duZuTWc x6NTbf7282zFFpvChowjZZ/cOYBt6eZWqIQqE+nX/64UpMmguktiC6NLvpcBJH7kio FQ7xztly6iKvzRoFs9YiGAq6AYPX9yLyz9TxuURP/1Fx7kjbMJA6tFDfdcfvpHYCEt Er6+c+ed16Aaw== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2AA2BC021B2; Sat, 22 Feb 2025 09:50:02 +0000 (UTC) From: Hans-Frieder Vogt via B4 Relay Date: Sat, 22 Feb 2025 10:49:32 +0100 Subject: [PATCH net-next v5 5/7] net: tn40xx: create swnode for mdio and aqr105 phy and add to mdiobus Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250222-tn9510-v3a-v5-5-99365047e309@gmx.net> References: <20250222-tn9510-v3a-v5-0-99365047e309@gmx.net> In-Reply-To: <20250222-tn9510-v3a-v5-0-99365047e309@gmx.net> To: Andrew Lunn , Heiner Kallweit , Russell King , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , FUJITA Tomonori , Andrew Lunn Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Hans-Frieder Vogt X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1740217800; l=6931; i=hfdevel@gmx.net; s=20240915; h=from:subject:message-id; bh=fDYx7GENpjvlSg10fHyG5SKAUsXKQx+K8/FQ0VJ/hhk=; b=qoa0RfjXFzR9Gsj2Lrx/BQvU+Gc0CbD6hCPr50cN61/0Ky3uxIXULWf4ToQaSbR5JzFLteYaY oTV8DB4Rm68As96D2o/NDSsuSOxAJx//sCRbhpyw0n04bgJ07WHm4UU X-Developer-Key: i=hfdevel@gmx.net; a=ed25519; pk=s3DJ3DFe6BJDRAcnd7VGvvwPXcLgV8mrfbpt8B9coRc= X-Endpoint-Received: by B4 Relay for hfdevel@gmx.net/20240915 with auth_id=209 X-Original-From: Hans-Frieder Vogt Reply-To: hfdevel@gmx.net X-Patchwork-Delegate: kuba@kernel.org From: Hans-Frieder Vogt In case of an AQR105-based device, create a software node for the mdio function, with a child node for the Aquantia AQR105 PHY, providing a firmware-name (and a bit more, which may be used for future checks) to allow the PHY to load a MAC specific firmware from the file system. The name of the PHY software node follows the naming convention suggested in the patch for the mdiobus_scan function (in the same patch series). Signed-off-by: Hans-Frieder Vogt --- drivers/net/ethernet/tehuti/tn40.c | 5 ++- drivers/net/ethernet/tehuti/tn40.h | 31 +++++++++++++ drivers/net/ethernet/tehuti/tn40_mdio.c | 78 ++++++++++++++++++++++++++++++++- 3 files changed, 111 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/tehuti/tn40.c b/drivers/net/ethernet/tehuti/tn40.c index 259bdac24cf211113b8f80934feb093d61e46f2d..a4dd04fc6d89e7f7efd77145a5dd883884b30c4b 100644 --- a/drivers/net/ethernet/tehuti/tn40.c +++ b/drivers/net/ethernet/tehuti/tn40.c @@ -1778,7 +1778,7 @@ static int tn40_probe(struct pci_dev *pdev, const struct pci_device_id *ent) ret = tn40_phy_register(priv); if (ret) { dev_err(&pdev->dev, "failed to set up PHY.\n"); - goto err_free_irq; + goto err_cleanup_swnodes; } ret = tn40_priv_init(priv); @@ -1795,6 +1795,8 @@ static int tn40_probe(struct pci_dev *pdev, const struct pci_device_id *ent) return 0; err_unregister_phydev: tn40_phy_unregister(priv); +err_cleanup_swnodes: + tn40_swnodes_cleanup(priv); err_free_irq: pci_free_irq_vectors(pdev); err_unset_drvdata: @@ -1816,6 +1818,7 @@ static void tn40_remove(struct pci_dev *pdev) unregister_netdev(ndev); tn40_phy_unregister(priv); + tn40_swnodes_cleanup(priv); pci_free_irq_vectors(priv->pdev); pci_set_drvdata(pdev, NULL); iounmap(priv->regs); diff --git a/drivers/net/ethernet/tehuti/tn40.h b/drivers/net/ethernet/tehuti/tn40.h index 490781fe512053d0d2cf0d6e819fc11d078a6733..ac48c1dc555480ccea41b6815bcfafb150b0a47c 100644 --- a/drivers/net/ethernet/tehuti/tn40.h +++ b/drivers/net/ethernet/tehuti/tn40.h @@ -4,6 +4,7 @@ #ifndef _TN40_H_ #define _TN40_H_ +#include #include "tn40_regs.h" #define TN40_DRV_NAME "tn40xx" @@ -102,10 +103,39 @@ struct tn40_txdb { int size; /* Number of elements in the db */ }; +#define NODE_PROP(_NAME, _PROP) ( \ + (const struct software_node) { \ + .name = _NAME, \ + .properties = _PROP, \ + }) + +#define NODE_PAR_PROP(_NAME, _PAR, _PROP) ( \ + (const struct software_node) { \ + .name = _NAME, \ + .parent = _PAR, \ + .properties = _PROP, \ + }) + +enum tn40_swnodes { + SWNODE_MDIO, + SWNODE_PHY, + SWNODE_MAX +}; + +struct tn40_nodes { + char phy_name[32]; + char mdio_name[32]; + struct property_entry phy_props[3]; + struct software_node swnodes[SWNODE_MAX]; + const struct software_node *group[SWNODE_MAX + 1]; +}; + struct tn40_priv { struct net_device *ndev; struct pci_dev *pdev; + struct tn40_nodes nodes; + struct napi_struct napi; /* RX FIFOs: 1 for data (full) descs, and 2 for free descs */ struct tn40_rxd_fifo rxd_fifo0; @@ -225,6 +255,7 @@ static inline void tn40_write_reg(struct tn40_priv *priv, u32 reg, u32 val) int tn40_set_link_speed(struct tn40_priv *priv, u32 speed); +void tn40_swnodes_cleanup(struct tn40_priv *priv); int tn40_mdiobus_init(struct tn40_priv *priv); int tn40_phy_register(struct tn40_priv *priv); diff --git a/drivers/net/ethernet/tehuti/tn40_mdio.c b/drivers/net/ethernet/tehuti/tn40_mdio.c index af18615d64a8a290c7f79e56260b9aacf82c0386..173551ace1941bf825c9b3d1acd16be24b35eb84 100644 --- a/drivers/net/ethernet/tehuti/tn40_mdio.c +++ b/drivers/net/ethernet/tehuti/tn40_mdio.c @@ -14,6 +14,8 @@ (FIELD_PREP(TN40_MDIO_PRTAD_MASK, (port)))) #define TN40_MDIO_CMD_READ BIT(15) +#define AQR105_FIRMWARE "tehuti/aqr105-tn40xx.cld" + static void tn40_mdio_set_speed(struct tn40_priv *priv, u32 speed) { void __iomem *regs = priv->regs; @@ -111,6 +113,56 @@ static int tn40_mdio_write_c45(struct mii_bus *mii_bus, int addr, int devnum, return tn40_mdio_write(mii_bus->priv, addr, devnum, regnum, val); } +/* registers an mdio node and an aqr105 PHY at address 1 + * tn40_mdio-%id { + * ethernet-phy@1 { + * compatible = "ethernet-phy-id03a1.b4a3"; + * reg = <1>; + * firmware-name = AQR105_FIRMWARE; + * }; + * }; + */ +static int tn40_swnodes_register(struct tn40_priv *priv) +{ + struct tn40_nodes *nodes = &priv->nodes; + struct pci_dev *pdev = priv->pdev; + struct software_node *swnodes; + u32 id; + + id = pci_dev_id(pdev); + + snprintf(nodes->phy_name, sizeof(nodes->phy_name), "ethernet-phy@1"); + snprintf(nodes->mdio_name, sizeof(nodes->mdio_name), "tn40_mdio-%x", + id); + + swnodes = nodes->swnodes; + + swnodes[SWNODE_MDIO] = NODE_PROP(nodes->mdio_name, NULL); + + nodes->phy_props[0] = PROPERTY_ENTRY_STRING("compatible", + "ethernet-phy-id03a1.b4a3"); + nodes->phy_props[1] = PROPERTY_ENTRY_U32("reg", 1); + nodes->phy_props[2] = PROPERTY_ENTRY_STRING("firmware-name", + AQR105_FIRMWARE); + swnodes[SWNODE_PHY] = NODE_PAR_PROP(nodes->phy_name, + &swnodes[SWNODE_MDIO], + nodes->phy_props); + + nodes->group[SWNODE_PHY] = &swnodes[SWNODE_PHY]; + nodes->group[SWNODE_MDIO] = &swnodes[SWNODE_MDIO]; + return software_node_register_node_group(nodes->group); +} + +void tn40_swnodes_cleanup(struct tn40_priv *priv) +{ + /* cleanup of swnodes is only needed for AQR105-based cards */ + if (priv->pdev->device == 0x4025) { + fwnode_handle_put(dev_fwnode(&priv->mdio->dev)); + device_remove_software_node(&priv->mdio->dev); + software_node_unregister_node_group(priv->nodes.group); + } +} + int tn40_mdiobus_init(struct tn40_priv *priv) { struct pci_dev *pdev = priv->pdev; @@ -129,14 +181,36 @@ int tn40_mdiobus_init(struct tn40_priv *priv) bus->read_c45 = tn40_mdio_read_c45; bus->write_c45 = tn40_mdio_write_c45; + priv->mdio = bus; + + /* provide swnodes for AQR105-based cards only */ + if (pdev->device == 0x4025) { + ret = tn40_swnodes_register(priv); + if (ret) { + pr_err("swnodes failed\n"); + return ret; + } + + ret = device_add_software_node(&bus->dev, + priv->nodes.group[SWNODE_MDIO]); + if (ret) { + dev_err(&pdev->dev, + "device_add_software_node failed: %d\n", ret); + } + } ret = devm_mdiobus_register(&pdev->dev, bus); if (ret) { dev_err(&pdev->dev, "failed to register mdiobus %d %u %u\n", ret, bus->state, MDIOBUS_UNREGISTERED); - return ret; + goto err_swnodes_cleanup; } tn40_mdio_set_speed(priv, TN40_MDIO_SPEED_6MHZ); - priv->mdio = bus; return 0; + +err_swnodes_cleanup: + tn40_swnodes_cleanup(priv); + return ret; } + +MODULE_FIRMWARE(AQR105_FIRMWARE);