From patchwork Mon Apr 15 09:18:44 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Romain Gantois X-Patchwork-Id: 13629690 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 30C7BC4345F for ; Mon, 15 Apr 2024 09:18:39 +0000 (UTC) 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:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References:Message-Id :MIME-Version:Subject:Date:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=0UKerhqdNAqctmmojfmnV025ct+EXUrh2dRzaJMUsTI=; b=18us3ndTEpr+/k jor/gU9vu8xJuEgBQen24ifhpv0xz/cPyR/iKIqXylDDpjf6qWC6MqLF/EegyHvxXDa5ZeERwyZZc kqwIXCRP9Qx/2qQPsJL42itKOlx7L32LOAYoEsYdbwoW4nOE5q2Pw0AaZLeogh3gPNJecZFZKW1yX RC++Tg2gX2JpxRtL57rI9e52QkGYJwYD+lvh+esvpzdODOF4NHbmy1uQXKFozY8CodwE2AiarwQGW 1ormusGOX9YQ/ocyEKSGCUbzpgnOqWX+yOzjtSVvc6rstaddkJytmHSkFRfRXkDfTIaVTArxBgrtM fJTqqn29erLRETwMl7nw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rwITs-00000007g6W-3PEo; Mon, 15 Apr 2024 09:18:28 +0000 Received: from relay6-d.mail.gandi.net ([2001:4b98:dc4:8::226]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rwITe-00000007fyv-2Wht for linux-arm-kernel@lists.infradead.org; Mon, 15 Apr 2024 09:18:16 +0000 Received: by mail.gandi.net (Postfix) with ESMTPSA id A11BEC0003; Mon, 15 Apr 2024 09:18:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1713172691; 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=6yPvr6s2b9jEW/76txTr1//1bx3sVGpsDrq5Rf+/UwM=; b=egpSyiSm0w3DKPD2KCpWBJjlWcgowDU8+0klocKb2oeXiCIIbI/fl9TMs18kQ+66YGAM8w WFhS4xMI7pQaiuhxApGC5aoL8XVflRGegUkH/UM6ulfZKhOQOy/psKKHgzJwUL5nsiqGUw cGfq37mh92yr8QSN8HFDEOuzIeoUsYn57dHkdA3v83bgmrspscWhf4MZzuurAMNTAIhTpF 0CstaX5sGpFmyQvKnm8cgiB6ybnJ+so3eOoBWiS1IDBm9UhnGk6f3rjHod0geP2DiydLfv MhH9AL+xnVtX29QOTS16Cjmoy7MQH5n08S1SoU4njirppVmTQYZ1cFCsagVXPw== From: Romain Gantois Date: Mon, 15 Apr 2024 11:18:44 +0200 Subject: [PATCH net-next v3 4/5] net: stmmac: add support for RZ/N1 GMAC MIME-Version: 1.0 Message-Id: <20240415-rzn1-gmac1-v3-4-ab12f2c4401d@bootlin.com> References: <20240415-rzn1-gmac1-v3-0-ab12f2c4401d@bootlin.com> In-Reply-To: <20240415-rzn1-gmac1-v3-0-ab12f2c4401d@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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240415_021814_984400_D8138164 X-CRM114-Status: GOOD ( 19.78 ) 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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 5ba3fe6ac09ce..20f92241e0058 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -18845,6 +18845,12 @@ 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 4ec61f1ee71a2..05cc07b8f48c0 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 26cad4344701e..c2f0e91f6bf83 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 0000000000000..e85524c2017cf --- /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");