From patchwork Mon Jun 12 09:23:46 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bartosz Golaszewski X-Patchwork-Id: 691731 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 28F65C7EE43 for ; Mon, 12 Jun 2023 09:32:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234649AbjFLJcI (ORCPT ); Mon, 12 Jun 2023 05:32:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47708 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233750AbjFLJa3 (ORCPT ); Mon, 12 Jun 2023 05:30:29 -0400 Received: from mail-lf1-x133.google.com (mail-lf1-x133.google.com [IPv6:2a00:1450:4864:20::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D27DC4EC4 for ; Mon, 12 Jun 2023 02:24:52 -0700 (PDT) Received: by mail-lf1-x133.google.com with SMTP id 2adb3069b0e04-4f64fb05a8aso4792335e87.0 for ; Mon, 12 Jun 2023 02:24:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20221208.gappssmtp.com; s=20221208; t=1686561891; x=1689153891; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=Gu6Hj8PYw+w5Smr4EMXMmc+WADcALPo6VlL++XAkFkQ=; b=KgztPCwzL7tQDDy797REtkk6bu9zfPBV1CItjq2k4V9QtMfVqe7RQDCXQ+XLPJ+Tnu as8pYDlZiiycSsvjx0FeTP5FWiqBhfePAPUFcTmRWIbqULZz4GzxMxSYa6wh8l/ZdnX8 19eJideh6H6lNdJyPVL8ku4IHc43sCPTWCXZwSYq9N9lKCdNc1tcn/DsRUUbRH4jkopC 4m3O+6XeduNEMSUdeIrKAAqOR2554WPPuGg8oI5fw2O+aNCrNLvyIgTVYq+T3am/k4Ak GtUlY9r08SUm7vHfrQ4KlyXcElHqGru24EzP2b4Dg5v4sIQkXWI9ZdASbzNYVUtZhgM6 Y07g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1686561891; x=1689153891; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Gu6Hj8PYw+w5Smr4EMXMmc+WADcALPo6VlL++XAkFkQ=; b=NHLkb+eTMm3syf8IgUAi/g8b5f32oLovDoNKaCtMHRfIMnWCbNF2nZRE3wdSEKhnPh PpDiKXLb/Qh1caXNgrnKylgNi2nvVI9p0nadoR9vdeOQzn6B0JndMlD0N8OweYqSZarv W+bo4sGfadi7K0gp+tdkbsWgEv9BY1do94QC7xB/X7klDplXYlVb+pP4zMj7MDfVsPiV rvsYeSi/Xwc+pve0Tf28Qp8viSv7PrH2StulGH5DVFJRoRWst2bTgxo8TB68UjHDRote 1TXAqE5VmdU8HcC8bxw2dnGlRFRPb8Tx0J5fe1bS6ZvsMv3hHtdQTOx+nirEaAKVfZIw 8Wog== X-Gm-Message-State: AC+VfDxmTfzlbReZS60bigsfcbt6m1VqLQ5BxhleF/WxboExSFfSSmZV sLNG0XxB9J/gKpNLjHD31F54uQ== X-Google-Smtp-Source: ACHHUZ5PHuc52bGQHAJIwWPqQKW+7sxCfjsz+LzdXKKiWQG+l/yIe4x3JNrpAOl59yTb3Z2wEnrkzw== X-Received: by 2002:ac2:5b11:0:b0:4f3:b32d:f739 with SMTP id v17-20020ac25b11000000b004f3b32df739mr4457643lfn.19.1686561891077; Mon, 12 Jun 2023 02:24:51 -0700 (PDT) Received: from brgl-uxlite.home ([2a01:cb1d:334:ac00:a222:bbe9:c688:33ae]) by smtp.gmail.com with ESMTPSA id p14-20020a7bcc8e000000b003f727764b10sm10892044wma.4.2023.06.12.02.24.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 12 Jun 2023 02:24:50 -0700 (PDT) From: Bartosz Golaszewski To: Vinod Koul , Bhupesh Sharma , Andy Gross , Bjorn Andersson , Konrad Dybcio , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Kishon Vijay Abraham I , Giuseppe Cavallaro , Alexandre Torgue , Jose Abreu Cc: netdev@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com, Bartosz Golaszewski Subject: [PATCH 17/26] net: stmmac: dwmac-qcom-ethqos: add support for SGMII Date: Mon, 12 Jun 2023 11:23:46 +0200 Message-Id: <20230612092355.87937-18-brgl@bgdev.pl> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230612092355.87937-1-brgl@bgdev.pl> References: <20230612092355.87937-1-brgl@bgdev.pl> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: Bartosz Golaszewski On sa8775p the MAC is connected to the external PHY over SGMII so add support for it to the driver. Signed-off-by: Bartosz Golaszewski --- .../stmicro/stmmac/dwmac-qcom-ethqos.c | 37 +++++++++++++++++++ 1 file changed, 37 insertions(+) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c index 2f96f2c11278..247e3888cca0 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c @@ -76,6 +76,10 @@ #define RGMII_CONFIG2_DATA_DIVIDE_CLK_SEL BIT(6) #define RGMII_CONFIG2_TX_CLK_PHASE_SHIFT_EN BIT(5) +/* MAC_CTRL_REG bits */ +#define ETHQOS_MAC_CTRL_SPEED_MODE BIT(14) +#define ETHQOS_MAC_CTRL_PORT_SEL BIT(15) + struct ethqos_emac_por { unsigned int offset; unsigned int value; @@ -92,6 +96,7 @@ struct ethqos_emac_driver_data { struct qcom_ethqos { struct platform_device *pdev; void __iomem *rgmii_base; + void __iomem *mac_base; int (*configure_func)(struct qcom_ethqos *ethqos); unsigned int rgmii_clk_rate; @@ -561,6 +566,33 @@ static int ethqos_configure_rgmii(struct qcom_ethqos *ethqos) return 0; } +static int ethqos_configure_sgmii(struct qcom_ethqos *ethqos) +{ + int val; + + val = readl(ethqos->mac_base + MAC_CTRL_REG); + + switch (ethqos->speed) { + case SPEED_1000: + val &= ~ETHQOS_MAC_CTRL_PORT_SEL; + rgmii_updatel(ethqos, RGMII_CONFIG2_RGMII_CLK_SEL_CFG, + RGMII_CONFIG2_RGMII_CLK_SEL_CFG, + RGMII_IO_MACRO_CONFIG2); + break; + case SPEED_100: + val |= ETHQOS_MAC_CTRL_PORT_SEL | ETHQOS_MAC_CTRL_SPEED_MODE; + break; + case SPEED_10: + val |= ETHQOS_MAC_CTRL_PORT_SEL; + val &= ~ETHQOS_MAC_CTRL_SPEED_MODE; + break; + } + + writel(val, ethqos->mac_base + MAC_CTRL_REG); + + return val; +} + static int ethqos_configure(struct qcom_ethqos *ethqos) { return ethqos->configure_func(ethqos); @@ -673,6 +705,9 @@ static int qcom_ethqos_probe(struct platform_device *pdev) case PHY_INTERFACE_MODE_RGMII_TXID: ethqos->configure_func = ethqos_configure_rgmii; break; + case PHY_INTERFACE_MODE_SGMII: + ethqos->configure_func = ethqos_configure_sgmii; + break; case -ENODEV: ret = -ENODEV; goto out_config_dt; @@ -688,6 +723,8 @@ static int qcom_ethqos_probe(struct platform_device *pdev) goto out_config_dt; } + ethqos->mac_base = stmmac_res.addr; + data = of_device_get_match_data(dev); ethqos->por = data->por; ethqos->num_por = data->num_por;