From patchwork Tue Apr 9 09:21:47 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Romain Gantois X-Patchwork-Id: 13622051 X-Patchwork-Delegate: kuba@kernel.org Received: from relay8-d.mail.gandi.net (relay8-d.mail.gandi.net [217.70.183.201]) (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 63B1D80027; Tue, 9 Apr 2024 09:21:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.183.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712654484; cv=none; b=tBrOcjfqo3VN/FHOHtAaW7bNt8RONxKynGEpNIw3pBx4GFMAtc4x9ozyNaFOlBrDtFq4zt+C2ISONCB9kunsSuFPN5dDBqyqnBUcLepFKknMsjz9nNWTxK2JGb3i4KuTsgEdopzUcQHVKRozhb1sI+gvMXOUUX0rYQ8lZJuzCF4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712654484; c=relaxed/simple; bh=AJf5Of3kKlkAka+l9cpj2n36uGo5IzN/nGtrsDh5Z9s=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=Tr6YzVkBrXo24Nsml3YOcnuogiEeycmNiYUkGgiBYB5s1LTDT2egtA2Npe3lTj2mdpFnSrPmbSFvqzHuCghUL3ueiVZOM9Sli28guZ+Zx7nVZJnvTW2UbeekfrWyNFMd8UcuqwLjanie+T2FESOoZ+ih6jPLAkjp2cj/ZdQCxJI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=ANUe3Z+6; arc=none smtp.client-ip=217.70.183.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="ANUe3Z+6" Received: by mail.gandi.net (Postfix) with ESMTPSA id 5FB101BF20D; Tue, 9 Apr 2024 09:21:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1712654475; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=dgkEencf4j8/akYYZKAAcikJgwU95AzVaQqqFLwYq+w=; b=ANUe3Z+6s2nr2PPgirKQe0CzafD86+IuqA+XLBKB3otEoiImojEm/JOTPu8UIH/aB7qG4A fa+UNGBGBoXnzgl+jY4bFp537Fte4PEczy4t98sEK2B/sEn6oXRieK/g2u5aW6jACHIZiX /F4Pp2rEep9w++e7CvtRObrCpp5DKYd9bH5KgwvmT/7G0CeCBiOsusTcZVIhO7oYdRS2nw ETVXd7PpYF3FUoNUVma67R5iWTi9tdRzGIEsxr5lLNP0a7bcWWNPkxbltWiNliR5BALaCJ Kdja6F/gqeJa3W3Ff8dYBYhk35+SqHvPXFe07RpL9UEVitJ4AuOchklfkIrvlQ== From: Romain Gantois Date: Tue, 09 Apr 2024 11:21:47 +0200 Subject: [PATCH net-next v2 4/5] net: stmmac: add support for RZ/N1 GMAC Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240409-rzn1-gmac1-v2-4-79ca45f2fc79@bootlin.com> References: <20240409-rzn1-gmac1-v2-0-79ca45f2fc79@bootlin.com> In-Reply-To: <20240409-rzn1-gmac1-v2-0-79ca45f2fc79@bootlin.com> To: "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Geert Uytterhoeven , Magnus Damm , Alexandre Torgue , Jose Abreu , Maxime Coquelin , Russell King , =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= Cc: Thomas Petazzoni , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, Romain Gantois X-Mailer: b4 0.13.0 X-GND-Sasl: romain.gantois@bootlin.com X-Patchwork-Delegate: kuba@kernel.org From: Clément Léger Add support for the Renesas RZ/N1 GMAC. This support can make use of a custom RZ/N1 PCS which is fetched by parsing the pcs-handle device tree property. Signed-off-by: "Clément Léger" Co-developed-by: Romain Gantois Signed-off-by: Romain Gantois --- MAINTAINERS | 6 ++ drivers/net/ethernet/stmicro/stmmac/Kconfig | 12 ++++ drivers/net/ethernet/stmicro/stmmac/Makefile | 1 + drivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c | 88 ++++++++++++++++++++++++ 4 files changed, 107 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 4745ea94d463..40bd3eb355fd 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -18848,6 +18848,12 @@ F: include/dt-bindings/net/pcs-rzn1-miic.h F: include/linux/pcs-rzn1-miic.h F: net/dsa/tag_rzn1_a5psw.c +RENESAS RZ/N1 DWMAC GLUE LAYER +M: Romain Gantois +S: Maintained +F: Documentation/devicetree/bindings/net/renesas,rzn1-gmac.yaml +F: drivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c + RENESAS RZ/N1 RTC CONTROLLER DRIVER M: Miquel Raynal L: linux-rtc@vger.kernel.org diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethernet/stmicro/stmmac/Kconfig index 4ec61f1ee71a..05cc07b8f48c 100644 --- a/drivers/net/ethernet/stmicro/stmmac/Kconfig +++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig @@ -142,6 +142,18 @@ config DWMAC_ROCKCHIP This selects the Rockchip RK3288 SoC glue layer support for the stmmac device driver. +config DWMAC_RZN1 + tristate "Renesas RZ/N1 dwmac support" + default ARCH_RZN1 + depends on OF && (ARCH_RZN1 || COMPILE_TEST) + select PCS_RZN1_MIIC + help + Support for Ethernet controller on Renesas RZ/N1 SoC family. + + This selects the Renesas RZ/N1 SoC glue layer support for + the stmmac device driver. This support can make use of a custom MII + converter PCS device. + config DWMAC_SOCFPGA tristate "SOCFPGA dwmac support" default ARCH_INTEL_SOCFPGA diff --git a/drivers/net/ethernet/stmicro/stmmac/Makefile b/drivers/net/ethernet/stmicro/stmmac/Makefile index 26cad4344701..c2f0e91f6bf8 100644 --- a/drivers/net/ethernet/stmicro/stmmac/Makefile +++ b/drivers/net/ethernet/stmicro/stmmac/Makefile @@ -21,6 +21,7 @@ obj-$(CONFIG_DWMAC_MEDIATEK) += dwmac-mediatek.o obj-$(CONFIG_DWMAC_MESON) += dwmac-meson.o dwmac-meson8b.o obj-$(CONFIG_DWMAC_QCOM_ETHQOS) += dwmac-qcom-ethqos.o obj-$(CONFIG_DWMAC_ROCKCHIP) += dwmac-rk.o +obj-$(CONFIG_DWMAC_RZN1) += dwmac-rzn1.o obj-$(CONFIG_DWMAC_SOCFPGA) += dwmac-altr-socfpga.o obj-$(CONFIG_DWMAC_STARFIVE) += dwmac-starfive.o obj-$(CONFIG_DWMAC_STI) += dwmac-sti.o diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c new file mode 100644 index 000000000000..e85524c2017c --- /dev/null +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c @@ -0,0 +1,88 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2024 Schneider-Electric + * + * Clément Léger + */ + +#include +#include +#include +#include + +#include "stmmac_platform.h" +#include "stmmac.h" + +static int rzn1_dwmac_pcs_init(struct stmmac_priv *priv, + struct mac_device_info *hw) +{ + struct device_node *np = priv->device->of_node; + struct device_node *pcs_node; + struct phylink_pcs *pcs; + + pcs_node = of_parse_phandle(np, "pcs-handle", 0); + + if (pcs_node) { + pcs = miic_create(priv->device, pcs_node); + of_node_put(pcs_node); + if (IS_ERR(pcs)) + return PTR_ERR(pcs); + + priv->hw->phylink_pcs = pcs; + } + + return 0; +} + +static void rzn1_dwmac_pcs_exit(struct stmmac_priv *priv, + struct mac_device_info *hw) +{ + if (priv->hw->phylink_pcs) + miic_destroy(priv->hw->phylink_pcs); +} + +static int rzn1_dwmac_probe(struct platform_device *pdev) +{ + struct plat_stmmacenet_data *plat_dat; + struct stmmac_resources stmmac_res; + struct device *dev = &pdev->dev; + int ret; + + ret = stmmac_get_platform_resources(pdev, &stmmac_res); + if (ret) + return ret; + + plat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac); + if (IS_ERR(plat_dat)) + return PTR_ERR(plat_dat); + + plat_dat->bsp_priv = plat_dat; + plat_dat->pcs_init = rzn1_dwmac_pcs_init; + plat_dat->pcs_exit = rzn1_dwmac_pcs_exit; + + ret = stmmac_dvr_probe(dev, plat_dat, &stmmac_res); + if (ret) + return ret; + + return 0; +} + +static const struct of_device_id rzn1_dwmac_match[] = { + { .compatible = "renesas,rzn1-gmac" }, + { } +}; +MODULE_DEVICE_TABLE(of, rzn1_dwmac_match); + +static struct platform_driver rzn1_dwmac_driver = { + .probe = rzn1_dwmac_probe, + .remove_new = stmmac_pltfr_remove, + .driver = { + .name = "rzn1-dwmac", + .of_match_table = rzn1_dwmac_match, + }, +}; +module_platform_driver(rzn1_dwmac_driver); + +MODULE_AUTHOR("Clément Léger "); +MODULE_DESCRIPTION("Renesas RZN1 DWMAC specific glue layer"); +MODULE_LICENSE("GPL");