From patchwork Mon Mar 20 22:16:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Halaney X-Patchwork-Id: 13181954 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 DC1B0C6FD1D for ; Mon, 20 Mar 2023 22:19:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229996AbjCTWT0 (ORCPT ); Mon, 20 Mar 2023 18:19:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42094 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229635AbjCTWSl (ORCPT ); Mon, 20 Mar 2023 18:18:41 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 09D4D366A7 for ; Mon, 20 Mar 2023 15:17:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1679350639; 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=MuxRwUN7QuGJgCb1sgNXeyD5mGPP+IwVPMi41UhPJrI=; b=V3UHwHjnGa10y7FVQWMkzU0QeWlDsjmIgRO+/oTakBvs7ShpxjqnVVG2fWrkmhytMbj0Ol 6mbzL8v96BrsTQQjrgpHeXNmjXHHApi87T04vxStOtSI9HVfYKHIV0GbB2A06+xJQzzJt3 b3tZejNMBTGpGc5mup7+0AVamdMxUFY= Received: from mail-oi1-f198.google.com (mail-oi1-f198.google.com [209.85.167.198]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-633-StcZapkgNUa6HfJGDgYjQg-1; Mon, 20 Mar 2023 18:17:17 -0400 X-MC-Unique: StcZapkgNUa6HfJGDgYjQg-1 Received: by mail-oi1-f198.google.com with SMTP id 6-20020aca1106000000b00387183e9134so796867oir.21 for ; Mon, 20 Mar 2023 15:17:17 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1679350637; 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=MuxRwUN7QuGJgCb1sgNXeyD5mGPP+IwVPMi41UhPJrI=; b=q/ykvD8Yj4xnJjUJizwWZW7wXrW8iMAwDRaSxTDMZz/cFMCZRXY3Uzjy7XmN7fSq/3 YQ4IlImQaftqBEAt2pBLfM/1H/A2EmxDkZ6qU/g2pJETtAbnrJT8iCjPpR3+iAuZuowz PCVoMzO6KIb8+DxhlnOtV9RQTozxlprgBwU7X11jDM758q3/MZBxqV4QeYlDE9LnBg+M mcQBXMaE7loZlKoLX2sh2Rq+f522goJLaMFi+ynmleXFmVY+O4xK//LkmTKq/u8siD6b PzowJ5tecozEkbO/z5ril14nEKbQ2XJLQXdMV5Hb/b21c5QxctMOD8bDWKaa6E2MsEDC yLHw== X-Gm-Message-State: AO0yUKWqhnvjIbJzEu8ChfjlqEfrHe4LeMvQLpg+cs/wLerwZbZb4aKb eQ1uaXdQbd3cy/nAjUOO1ZJxAOzAJtyA+F5GlBllatWHF0PRMNxHGG2zf07NfOCaxOLPBaBZmj1 ma/B5LzlqEoTkEL7vlYWYWwvkjg== X-Received: by 2002:a9d:7315:0:b0:693:c9f9:64ab with SMTP id e21-20020a9d7315000000b00693c9f964abmr160579otk.3.1679350637054; Mon, 20 Mar 2023 15:17:17 -0700 (PDT) X-Google-Smtp-Source: AK7set98Og6GyTgodqKCDDtTyRzUmO/nuo0gcym2TARwdc/GXk398TERm6JpLQcmViXh/KUjabkepA== X-Received: by 2002:a9d:7315:0:b0:693:c9f9:64ab with SMTP id e21-20020a9d7315000000b00693c9f964abmr160571otk.3.1679350636869; Mon, 20 Mar 2023 15:17:16 -0700 (PDT) Received: from halaney-x13s.redhat.com (104-53-165-62.lightspeed.stlsmo.sbcglobal.net. [104.53.165.62]) by smtp.gmail.com with ESMTPSA id q204-20020a4a33d5000000b0053853156b5csm4092465ooq.8.2023.03.20.15.17.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 20 Mar 2023 15:17:16 -0700 (PDT) From: Andrew Halaney To: linux-kernel@vger.kernel.org Cc: agross@kernel.org, andersson@kernel.org, konrad.dybcio@linaro.org, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, vkoul@kernel.org, bhupesh.sharma@linaro.org, mturquette@baylibre.com, sboyd@kernel.org, peppe.cavallaro@st.com, alexandre.torgue@foss.st.com, joabreu@synopsys.com, mcoquelin.stm32@gmail.com, richardcochran@gmail.com, linux@armlinux.org.uk, veekhee@apple.com, tee.min.tan@linux.intel.com, mohammad.athari.ismail@intel.com, jonathanh@nvidia.com, ruppala@nvidia.com, bmasney@redhat.com, andrey.konovalov@linaro.org, linux-arm-msm@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-clk@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, ncai@quicinc.com, jsuraj@qti.qualcomm.com, hisunil@quicinc.com, echanude@redhat.com, Andrew Halaney Subject: [PATCH net-next v2 11/12] net: stmmac: dwmac-qcom-ethqos: Use loopback_en for all speeds Date: Mon, 20 Mar 2023 17:16:16 -0500 Message-Id: <20230320221617.236323-12-ahalaney@redhat.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230320221617.236323-1-ahalaney@redhat.com> References: <20230320221617.236323-1-ahalaney@redhat.com> MIME-Version: 1.0 Content-type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org It seems that this variable should be used for all speeds, not just 1000/100. While at it refactor it slightly to be more readable, including fixing the typo in the variable name. Signed-off-by: Andrew Halaney --- Changes since v1: * Use a consistent subject prefix with other stmmac changes in series (myself) .../stmicro/stmmac/dwmac-qcom-ethqos.c | 36 +++++++++---------- 1 file changed, 17 insertions(+), 19 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c index e89937916741..41e6f4fa92f3 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c @@ -78,7 +78,7 @@ struct ethqos_emac_por { struct ethqos_emac_driver_data { const struct ethqos_emac_por *por; unsigned int num_por; - bool rgmii_config_looback_en; + bool rgmii_config_loopback_en; }; struct qcom_ethqos { @@ -91,7 +91,7 @@ struct qcom_ethqos { const struct ethqos_emac_por *por; unsigned int num_por; - bool rgmii_config_looback_en; + bool rgmii_config_loopback_en; }; static int rgmii_readl(struct qcom_ethqos *ethqos, unsigned int offset) @@ -183,7 +183,7 @@ static const struct ethqos_emac_por emac_v2_3_0_por[] = { static const struct ethqos_emac_driver_data emac_v2_3_0_data = { .por = emac_v2_3_0_por, .num_por = ARRAY_SIZE(emac_v2_3_0_por), - .rgmii_config_looback_en = true, + .rgmii_config_loopback_en = true, }; static const struct ethqos_emac_por emac_v2_1_0_por[] = { @@ -198,7 +198,7 @@ static const struct ethqos_emac_por emac_v2_1_0_por[] = { static const struct ethqos_emac_driver_data emac_v2_1_0_data = { .por = emac_v2_1_0_por, .num_por = ARRAY_SIZE(emac_v2_1_0_por), - .rgmii_config_looback_en = false, + .rgmii_config_loopback_en = false, }; static int ethqos_dll_configure(struct qcom_ethqos *ethqos) @@ -281,6 +281,7 @@ static int ethqos_rgmii_macro_init(struct qcom_ethqos *ethqos) { int phy_mode; int phase_shift; + int loopback; /* Determine if the PHY adds a 2 ns TX delay or the MAC handles it */ phy_mode = device_get_phy_mode(ðqos->pdev->dev); @@ -293,6 +294,12 @@ static int ethqos_rgmii_macro_init(struct qcom_ethqos *ethqos) rgmii_updatel(ethqos, RGMII_CONFIG2_TX_TO_RX_LOOPBACK_EN, 0, RGMII_IO_MACRO_CONFIG2); + /* Determine if this platform wants loopback enabled after programming */ + if (ethqos->rgmii_config_loopback_en) + loopback = RGMII_CONFIG_LOOPBACK_EN; + else + loopback = 0; + /* Select RGMII, write 0 to interface select */ rgmii_updatel(ethqos, RGMII_CONFIG_INTF_SEL, 0, RGMII_IO_MACRO_CONFIG); @@ -325,12 +332,8 @@ static int ethqos_rgmii_macro_init(struct qcom_ethqos *ethqos) rgmii_updatel(ethqos, SDCC_DDR_CONFIG_PRG_DLY_EN, SDCC_DDR_CONFIG_PRG_DLY_EN, SDCC_HC_REG_DDR_CONFIG); - if (ethqos->rgmii_config_looback_en) - rgmii_updatel(ethqos, RGMII_CONFIG_LOOPBACK_EN, - RGMII_CONFIG_LOOPBACK_EN, RGMII_IO_MACRO_CONFIG); - else - rgmii_updatel(ethqos, RGMII_CONFIG_LOOPBACK_EN, - 0, RGMII_IO_MACRO_CONFIG); + rgmii_updatel(ethqos, RGMII_CONFIG_LOOPBACK_EN, + loopback, RGMII_IO_MACRO_CONFIG); break; case SPEED_100: @@ -362,13 +365,8 @@ static int ethqos_rgmii_macro_init(struct qcom_ethqos *ethqos) rgmii_updatel(ethqos, SDCC_DDR_CONFIG_EXT_PRG_RCLK_DLY_EN, SDCC_DDR_CONFIG_EXT_PRG_RCLK_DLY_EN, SDCC_HC_REG_DDR_CONFIG); - if (ethqos->rgmii_config_looback_en) - rgmii_updatel(ethqos, RGMII_CONFIG_LOOPBACK_EN, - RGMII_CONFIG_LOOPBACK_EN, RGMII_IO_MACRO_CONFIG); - else - rgmii_updatel(ethqos, RGMII_CONFIG_LOOPBACK_EN, - 0, RGMII_IO_MACRO_CONFIG); - + rgmii_updatel(ethqos, RGMII_CONFIG_LOOPBACK_EN, + loopback, RGMII_IO_MACRO_CONFIG); break; case SPEED_10: @@ -402,7 +400,7 @@ static int ethqos_rgmii_macro_init(struct qcom_ethqos *ethqos) SDCC_DDR_CONFIG_EXT_PRG_RCLK_DLY_EN, SDCC_HC_REG_DDR_CONFIG); rgmii_updatel(ethqos, RGMII_CONFIG_LOOPBACK_EN, - RGMII_CONFIG_LOOPBACK_EN, RGMII_IO_MACRO_CONFIG); + loopback, RGMII_IO_MACRO_CONFIG); break; default: dev_err(ðqos->pdev->dev, @@ -547,7 +545,7 @@ static int qcom_ethqos_probe(struct platform_device *pdev) data = of_device_get_match_data(&pdev->dev); ethqos->por = data->por; ethqos->num_por = data->num_por; - ethqos->rgmii_config_looback_en = data->rgmii_config_looback_en; + ethqos->rgmii_config_loopback_en = data->rgmii_config_loopback_en; ethqos->rgmii_clk = devm_clk_get(&pdev->dev, "rgmii"); if (IS_ERR(ethqos->rgmii_clk)) {