From patchwork Mon Jan 16 10:39:25 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= X-Patchwork-Id: 13102893 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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9EA1CC63797 for ; Mon, 16 Jan 2023 10:39:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229753AbjAPKjA (ORCPT ); Mon, 16 Jan 2023 05:39:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48384 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230432AbjAPKiI (ORCPT ); Mon, 16 Jan 2023 05:38:08 -0500 Received: from relay8-d.mail.gandi.net (relay8-d.mail.gandi.net [IPv6:2001:4b98:dc4:8::228]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9B12B1DB94; Mon, 16 Jan 2023 02:37:43 -0800 (PST) Received: (Authenticated sender: clement.leger@bootlin.com) by mail.gandi.net (Postfix) with ESMTPSA id BC2171BF209; Mon, 16 Jan 2023 10:37:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1673865462; 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=I+Us5lv8xld8eqsPb/evOZggsVSLf7Sgj5llfAKoG5I=; b=mJkUiTptTSRGfXw8P9mTDzGI4JN8V6hcgFu3CWUDL66aX8ghlnzjY02So9m5hgI2m6fb2F ZUWQotvyL2G8gQKD3/fswyIBNng9N8FyvqbaXh/MMgZSvTkOE2+1kdBviKYzrStWTcHReK eW5098JUCH5EUTKrh6Mdu/q0Jx0ZTieiOy/4g2fo3dkXrFAKVjqtwmBhI/ZIJKUzJ0uiUW pYZE+RLT6fM1NDzaowpa8gpNFRwbYYKAxGCrtCcxtjtImGICahf/ylXheVt6OUPPv72Zz5 mQ4OCOo3xLgiFzc1cXVuRjZmGxxIqvbzPc8O/CL3h4nIZR38aIJH1/qz2C0OxQ== From: =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= To: Sergey Shtylyov , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Geert Uytterhoeven , Magnus Damm , Giuseppe Cavallaro , Alexandre Torgue , Jose Abreu , Maxime Coquelin , Russell King , Wong Vee Khee , =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= , Kurt Kanzenbach , Revanth Kumar Uppala , Tan Tee Min Cc: Thomas Petazzoni , Herve Codina , =?utf-8?q?Miqu=C3=A8l_Raynal?= , Milan Stevanovic , Jimmy Lalande , Pascal Eberhard , Mohammad Athari Bin Ismail , Jon Hunter , netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Subject: [PATCH net-next 5/6] net: stmmac: add support for RZ/N1 GMAC Date: Mon, 16 Jan 2023 11:39:25 +0100 Message-Id: <20230116103926.276869-6-clement.leger@bootlin.com> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230116103926.276869-1-clement.leger@bootlin.com> References: <20230116103926.276869-1-clement.leger@bootlin.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Add support for Renesas RZ/N1 GMAC. This support uses a custom PCS (MIIC) which is handle by parsing the pcs-handle device tree property. Signed-off-by: Clément Léger --- drivers/net/ethernet/stmicro/stmmac/Kconfig | 11 ++ drivers/net/ethernet/stmicro/stmmac/Makefile | 1 + .../net/ethernet/stmicro/stmmac/dwmac-rzn1.c | 113 ++++++++++++++++++ 3 files changed, 125 insertions(+) create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethernet/stmicro/stmmac/Kconfig index f77511fe4e87..be5429b7e192 100644 --- a/drivers/net/ethernet/stmicro/stmmac/Kconfig +++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig @@ -153,6 +153,17 @@ 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. + 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 057e4bab5c08..53a0f74c1cb5 100644 --- a/drivers/net/ethernet/stmicro/stmmac/Makefile +++ b/drivers/net/ethernet/stmicro/stmmac/Makefile @@ -22,6 +22,7 @@ obj-$(CONFIG_DWMAC_MESON) += dwmac-meson.o dwmac-meson8b.o obj-$(CONFIG_DWMAC_OXNAS) += dwmac-oxnas.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-$(CONFIG_DWMAC_STI) += dwmac-sti.o obj-$(CONFIG_DWMAC_STM32) += dwmac-stm32.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..427b239e9772 --- /dev/null +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rzn1.c @@ -0,0 +1,113 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2022 Schneider-Electric + * + * Clément Léger + */ + +#include +#include +#include +#include + +#include "stmmac_platform.h" +#include "stmmac.h" + +struct rzn1_dwmac { + struct phylink_pcs *pcs; +}; + +static int rzn1_dt_parse(struct device *dev, struct rzn1_dwmac *dwmac) +{ + struct device_node *np = dev->of_node; + struct device_node *pcs_node; + struct phylink_pcs *pcs; + + pcs_node = of_parse_phandle(np, "pcs-handle", 0); + if (!pcs_node) + return 0; + + pcs = miic_create(dev, pcs_node); + if (IS_ERR(pcs)) + return PTR_ERR(pcs); + + dwmac->pcs = pcs; + + return 0; +} + +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; + struct rzn1_dwmac *dwmac; + int ret; + + ret = stmmac_get_platform_resources(pdev, &stmmac_res); + if (ret) + return ret; + + plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac); + if (IS_ERR(plat_dat)) + return PTR_ERR(plat_dat); + + dwmac = devm_kzalloc(dev, sizeof(*dwmac), GFP_KERNEL); + if (!dwmac) { + ret = -ENOMEM; + goto err_remove_config_dt; + } + + ret = rzn1_dt_parse(dev, dwmac); + if (ret) + goto err_remove_config_dt; + + plat_dat->bsp_priv = dwmac; + plat_dat->pcs = dwmac->pcs; + + ret = stmmac_dvr_probe(dev, plat_dat, &stmmac_res); + if (ret) + goto err_free_pcs; + + return 0; + +err_free_pcs: + if (dwmac->pcs) + miic_destroy(dwmac->pcs); + +err_remove_config_dt: + stmmac_remove_config_dt(pdev, plat_dat); + + return ret; +} + +static int rzn1_dwmac_remove(struct platform_device *pdev) +{ + struct rzn1_dwmac *dwmac = get_stmmac_bsp_priv(&pdev->dev); + int ret = stmmac_dvr_remove(&pdev->dev); + + if (dwmac->pcs) + miic_destroy(dwmac->pcs); + + return ret; +} + +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 = rzn1_dwmac_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");