From patchwork Fri Mar 31 08:34:49 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Neil Armstrong X-Patchwork-Id: 669357 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 2077DC76196 for ; Fri, 31 Mar 2023 08:36:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231814AbjCaIge (ORCPT ); Fri, 31 Mar 2023 04:36:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57628 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231672AbjCaIgG (ORCPT ); Fri, 31 Mar 2023 04:36:06 -0400 Received: from mail-wr1-x434.google.com (mail-wr1-x434.google.com [IPv6:2a00:1450:4864:20::434]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 70B381D906 for ; Fri, 31 Mar 2023 01:34:59 -0700 (PDT) Received: by mail-wr1-x434.google.com with SMTP id l12so21567023wrm.10 for ; Fri, 31 Mar 2023 01:34:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1680251699; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=oNLeYYmevUI4TEvtO58qWx9WKba4OWRb4gPC7pePliE=; b=QU/SMBwtauCDT26FDqkLVtUXOmKViF57BpBJbMyuNffLde2pjYSjYzzk4mMYgUY3RF Rv1j3nYCqzqWdV0ukZFmHVZEiyVWTayLisexL8iWTuSVhf0GnbgP1m/Kwr55kuXEC247 H/1TlEwLAqO67ulQUFvz0q5cljRi5THKZtwqXZGj6DLmUrfgLnU8g5RDzJ3qX2TAyMkG JxtGinY/oJy51QsUfHANnB7s7NryhUeyS97DkLO3aOO3lWC99jyqeBVY2qo5YroHiBcG rbUVwa++BHOKgmdcC2Pxy8TIKtAb93DOo8j1YoPZJI3KBQiM7EvNk0av74pdYjvn/4oV D2Sw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1680251699; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=oNLeYYmevUI4TEvtO58qWx9WKba4OWRb4gPC7pePliE=; b=ayK/VEm7rhKbVO2U20mt72xxs4w3RNrOh5nNOCP41ybxpBCKQd/vnvCEcnTN9fZnD8 J73JoWVeJJC8wYmFVfLjqbGCjimwfE0YCrVzsBXjUsqNYuXfscBkgM/zqTq0l2P2b/pr YFhROKHx7Vu0oVyzGrTXx0dHmysNAnMG6qTfiX6tOnFG+ttmbJopNv/Ahzh1j3OOeVek uNZ1WaHhZPdf5aFyLt+/Z1W/dp7mVJA8/G0cwF83emNjTFWkE+b6u5D6zKNVfQNU0WQZ 6hANAXWboo2vi+NYvrW61G8cbwKbDuNsV9zL4+htXY5jK8P5ZgG1/2ElJEBZStAGB4YS 3B9g== X-Gm-Message-State: AAQBX9f54pBQKsKqPXAw9s1wW7wbz1sUkqcrCELk7zqsSo0e8ClW3kBv tjdrwzwEHPCOvrlUmN3ZEXrpoA== X-Google-Smtp-Source: AKy350bU8fJMNCxfVc86Lv2m3v2OU/27OaMpg82cazbgj/q2eFNxD3gWemqObAljC1iPMvpM3rDX1w== X-Received: by 2002:a5d:63d1:0:b0:2d5:b6a9:772a with SMTP id c17-20020a5d63d1000000b002d5b6a9772amr20187850wrw.17.1680251699431; Fri, 31 Mar 2023 01:34:59 -0700 (PDT) Received: from arrakeen.starnux.net ([2a01:e0a:982:cbb0:8261:5fff:fe11:bdda]) by smtp.gmail.com with ESMTPSA id e11-20020a5d4e8b000000b002cde626cd96sm1563153wru.65.2023.03.31.01.34.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 31 Mar 2023 01:34:59 -0700 (PDT) From: Neil Armstrong Date: Fri, 31 Mar 2023 10:34:49 +0200 Subject: [PATCH RFC 11/20] net: stmmac: dwmac-oxnas: remove obsolete dwmac glue driver MIME-Version: 1.0 Message-Id: <20230331-topic-oxnas-upstream-remove-v1-11-5bd58fd1dd1f@linaro.org> References: <20230331-topic-oxnas-upstream-remove-v1-0-5bd58fd1dd1f@linaro.org> In-Reply-To: <20230331-topic-oxnas-upstream-remove-v1-0-5bd58fd1dd1f@linaro.org> To: Arnd Bergmann , Olof Johansson , soc@kernel.org, Rob Herring , Krzysztof Kozlowski , Russell King , Michael Turquette , Stephen Boyd , Daniel Lezcano , Thomas Gleixner , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Giuseppe Cavallaro , Alexandre Torgue , Jose Abreu , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Maxime Coquelin , Linus Walleij , Bartosz Golaszewski , Sebastian Reichel , Philipp Zabel , Marc Zyngier Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, linux-mtd@lists.infradead.org, netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-gpio@vger.kernel.org, linux-pm@vger.kernel.org, Neil Armstrong X-Mailer: b4 0.12.1 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Due to lack of maintainance and stall of development for a few years now, and since no new features will ever be added upstream, remove support for OX810 and OX820 ethernet. Signed-off-by: Neil Armstrong --- drivers/net/ethernet/stmicro/stmmac/Kconfig | 11 - drivers/net/ethernet/stmicro/stmmac/Makefile | 1 - drivers/net/ethernet/stmicro/stmmac/dwmac-oxnas.c | 245 ---------------------- 3 files changed, 257 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethernet/stmicro/stmmac/Kconfig index f77511fe4e87..8a0655d5f22e 100644 --- a/drivers/net/ethernet/stmicro/stmmac/Kconfig +++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig @@ -121,17 +121,6 @@ config DWMAC_MESON the stmmac device driver. This driver is used for Meson6, Meson8, Meson8b and GXBB SoCs. -config DWMAC_OXNAS - tristate "Oxford Semiconductor OXNAS dwmac support" - default ARCH_OXNAS - depends on OF && COMMON_CLK && (ARCH_OXNAS || COMPILE_TEST) - select MFD_SYSCON - help - Support for Ethernet controller on Oxford Semiconductor OXNAS SoCs. - - This selects the Oxford Semiconductor OXNASSoC glue layer support for - the stmmac device driver. This driver is used for OX820. - config DWMAC_QCOM_ETHQOS tristate "Qualcomm ETHQOS support" default ARCH_QCOM diff --git a/drivers/net/ethernet/stmicro/stmmac/Makefile b/drivers/net/ethernet/stmicro/stmmac/Makefile index 057e4bab5c08..9b56324ccf7d 100644 --- a/drivers/net/ethernet/stmicro/stmmac/Makefile +++ b/drivers/net/ethernet/stmicro/stmmac/Makefile @@ -19,7 +19,6 @@ obj-$(CONFIG_DWMAC_IPQ806X) += dwmac-ipq806x.o obj-$(CONFIG_DWMAC_LPC18XX) += dwmac-lpc18xx.o obj-$(CONFIG_DWMAC_MEDIATEK) += dwmac-mediatek.o obj-$(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_SOCFPGA) += dwmac-altr-socfpga.o diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-oxnas.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-oxnas.c deleted file mode 100644 index 62a69a91ab22..000000000000 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-oxnas.c +++ /dev/null @@ -1,245 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Oxford Semiconductor OXNAS DWMAC glue layer - * - * Copyright (C) 2016 Neil Armstrong - * Copyright (C) 2014 Daniel Golle - * Copyright (C) 2013 Ma Haijun - * Copyright (C) 2012 John Crispin - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "stmmac_platform.h" - -/* System Control regmap offsets */ -#define OXNAS_DWMAC_CTRL_REGOFFSET 0x78 -#define OXNAS_DWMAC_DELAY_REGOFFSET 0x100 - -/* Control Register */ -#define DWMAC_CKEN_RX_IN 14 -#define DWMAC_CKEN_RXN_OUT 13 -#define DWMAC_CKEN_RX_OUT 12 -#define DWMAC_CKEN_TX_IN 10 -#define DWMAC_CKEN_TXN_OUT 9 -#define DWMAC_CKEN_TX_OUT 8 -#define DWMAC_RX_SOURCE 7 -#define DWMAC_TX_SOURCE 6 -#define DWMAC_LOW_TX_SOURCE 4 -#define DWMAC_AUTO_TX_SOURCE 3 -#define DWMAC_RGMII 2 -#define DWMAC_SIMPLE_MUX 1 -#define DWMAC_CKEN_GTX 0 - -/* Delay register */ -#define DWMAC_TX_VARDELAY_SHIFT 0 -#define DWMAC_TXN_VARDELAY_SHIFT 8 -#define DWMAC_RX_VARDELAY_SHIFT 16 -#define DWMAC_RXN_VARDELAY_SHIFT 24 -#define DWMAC_TX_VARDELAY(d) ((d) << DWMAC_TX_VARDELAY_SHIFT) -#define DWMAC_TXN_VARDELAY(d) ((d) << DWMAC_TXN_VARDELAY_SHIFT) -#define DWMAC_RX_VARDELAY(d) ((d) << DWMAC_RX_VARDELAY_SHIFT) -#define DWMAC_RXN_VARDELAY(d) ((d) << DWMAC_RXN_VARDELAY_SHIFT) - -struct oxnas_dwmac; - -struct oxnas_dwmac_data { - int (*setup)(struct oxnas_dwmac *dwmac); -}; - -struct oxnas_dwmac { - struct device *dev; - struct clk *clk; - struct regmap *regmap; - const struct oxnas_dwmac_data *data; -}; - -static int oxnas_dwmac_setup_ox810se(struct oxnas_dwmac *dwmac) -{ - unsigned int value; - int ret; - - ret = regmap_read(dwmac->regmap, OXNAS_DWMAC_CTRL_REGOFFSET, &value); - if (ret < 0) - return ret; - - /* Enable GMII_GTXCLK to follow GMII_REFCLK, required for gigabit PHY */ - value |= BIT(DWMAC_CKEN_GTX) | - /* Use simple mux for 25/125 Mhz clock switching */ - BIT(DWMAC_SIMPLE_MUX); - - regmap_write(dwmac->regmap, OXNAS_DWMAC_CTRL_REGOFFSET, value); - - return 0; -} - -static int oxnas_dwmac_setup_ox820(struct oxnas_dwmac *dwmac) -{ - unsigned int value; - int ret; - - ret = regmap_read(dwmac->regmap, OXNAS_DWMAC_CTRL_REGOFFSET, &value); - if (ret < 0) - return ret; - - /* Enable GMII_GTXCLK to follow GMII_REFCLK, required for gigabit PHY */ - value |= BIT(DWMAC_CKEN_GTX) | - /* Use simple mux for 25/125 Mhz clock switching */ - BIT(DWMAC_SIMPLE_MUX) | - /* set auto switch tx clock source */ - BIT(DWMAC_AUTO_TX_SOURCE) | - /* enable tx & rx vardelay */ - BIT(DWMAC_CKEN_TX_OUT) | - BIT(DWMAC_CKEN_TXN_OUT) | - BIT(DWMAC_CKEN_TX_IN) | - BIT(DWMAC_CKEN_RX_OUT) | - BIT(DWMAC_CKEN_RXN_OUT) | - BIT(DWMAC_CKEN_RX_IN); - regmap_write(dwmac->regmap, OXNAS_DWMAC_CTRL_REGOFFSET, value); - - /* set tx & rx vardelay */ - value = DWMAC_TX_VARDELAY(4) | - DWMAC_TXN_VARDELAY(2) | - DWMAC_RX_VARDELAY(10) | - DWMAC_RXN_VARDELAY(8); - regmap_write(dwmac->regmap, OXNAS_DWMAC_DELAY_REGOFFSET, value); - - return 0; -} - -static int oxnas_dwmac_init(struct platform_device *pdev, void *priv) -{ - struct oxnas_dwmac *dwmac = priv; - int ret; - - /* Reset HW here before changing the glue configuration */ - ret = device_reset(dwmac->dev); - if (ret) - return ret; - - ret = clk_prepare_enable(dwmac->clk); - if (ret) - return ret; - - ret = dwmac->data->setup(dwmac); - if (ret) - clk_disable_unprepare(dwmac->clk); - - return ret; -} - -static void oxnas_dwmac_exit(struct platform_device *pdev, void *priv) -{ - struct oxnas_dwmac *dwmac = priv; - - clk_disable_unprepare(dwmac->clk); -} - -static int oxnas_dwmac_probe(struct platform_device *pdev) -{ - struct plat_stmmacenet_data *plat_dat; - struct stmmac_resources stmmac_res; - struct oxnas_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(&pdev->dev, sizeof(*dwmac), GFP_KERNEL); - if (!dwmac) { - ret = -ENOMEM; - goto err_remove_config_dt; - } - - dwmac->data = (const struct oxnas_dwmac_data *)of_device_get_match_data(&pdev->dev); - if (!dwmac->data) { - ret = -EINVAL; - goto err_remove_config_dt; - } - - dwmac->dev = &pdev->dev; - plat_dat->bsp_priv = dwmac; - plat_dat->init = oxnas_dwmac_init; - plat_dat->exit = oxnas_dwmac_exit; - - dwmac->regmap = syscon_regmap_lookup_by_phandle(pdev->dev.of_node, - "oxsemi,sys-ctrl"); - if (IS_ERR(dwmac->regmap)) { - dev_err(&pdev->dev, "failed to have sysctrl regmap\n"); - ret = PTR_ERR(dwmac->regmap); - goto err_remove_config_dt; - } - - dwmac->clk = devm_clk_get(&pdev->dev, "gmac"); - if (IS_ERR(dwmac->clk)) { - ret = PTR_ERR(dwmac->clk); - goto err_remove_config_dt; - } - - ret = oxnas_dwmac_init(pdev, plat_dat->bsp_priv); - if (ret) - goto err_remove_config_dt; - - ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res); - if (ret) - goto err_dwmac_exit; - - - return 0; - -err_dwmac_exit: - oxnas_dwmac_exit(pdev, plat_dat->bsp_priv); -err_remove_config_dt: - stmmac_remove_config_dt(pdev, plat_dat); - - return ret; -} - -static const struct oxnas_dwmac_data ox810se_dwmac_data = { - .setup = oxnas_dwmac_setup_ox810se, -}; - -static const struct oxnas_dwmac_data ox820_dwmac_data = { - .setup = oxnas_dwmac_setup_ox820, -}; - -static const struct of_device_id oxnas_dwmac_match[] = { - { - .compatible = "oxsemi,ox810se-dwmac", - .data = &ox810se_dwmac_data, - }, - { - .compatible = "oxsemi,ox820-dwmac", - .data = &ox820_dwmac_data, - }, - { } -}; -MODULE_DEVICE_TABLE(of, oxnas_dwmac_match); - -static struct platform_driver oxnas_dwmac_driver = { - .probe = oxnas_dwmac_probe, - .remove = stmmac_pltfr_remove, - .driver = { - .name = "oxnas-dwmac", - .pm = &stmmac_pltfr_pm_ops, - .of_match_table = oxnas_dwmac_match, - }, -}; -module_platform_driver(oxnas_dwmac_driver); - -MODULE_AUTHOR("Neil Armstrong "); -MODULE_DESCRIPTION("Oxford Semiconductor OXNAS DWMAC glue layer"); -MODULE_LICENSE("GPL v2");