From patchwork Fri Jan 26 19:13:16 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cristian Ciocaltea X-Patchwork-Id: 766594 Received: from madrid.collaboradmins.com (madrid.collaboradmins.com [46.235.227.194]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 76E7F225CD; Fri, 26 Jan 2024 19:13:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.227.194 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706296406; cv=none; b=Q+g/8ZrumXW6EWeRx6zCNlufD4LNlmDpFpzGdu7soEd4y5mthfAre7tU1tL+EX7heOX2YJRM4s6tIpyMFZX7k0EaEYNQN6q88JkiajTEhWAetzYL1CekKHSkPw5Fvh3lzXLv9IlCUBlTou/jf3YmmpKp3LFKSRTLGhyW1Xi9hbs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706296406; c=relaxed/simple; bh=uWnUGLE/quS8brRKKnW9+bEaKmmv9xeEiJDJO/bueIA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=aNdZr4FHIQbkLfrlGIzqJ349/+ZNr+jZA8LTm8Iij4lnaTMLDbGg53hsI2OvaxbpHnXboYdfkTXBrBPunF3E/5MZwO5BPohVa2VEPtiyjud/TQlLnfOPzzFkb3B2IF+D8dRS/WHaam/RnB/Y6l2DLngDZDhX9dxMAyLkOJlsxzU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=A9VAkVUQ; arc=none smtp.client-ip=46.235.227.194 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="A9VAkVUQ" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1706296402; bh=uWnUGLE/quS8brRKKnW9+bEaKmmv9xeEiJDJO/bueIA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=A9VAkVUQc7/Kh7UUa59Cy0SYU2VbCZW71P2fv/xWYQIdhj21ngy9hBjlK7gotdN5v V5Hi35J3uHRA9nMEaWSi4JUI6KBBYDf/jHEyZPItOaDM8JTwIt3LBjPe1jByszkQSE /rfjAkYjqoo6pS4P5c6Pb6dv48Lsr3R2MCfrOV3qfSBMRWKDsXcJ2x3hMLUqhQyPsF 2iFkjdhON5SbaeiNhIHEAhloARVHsK8VBqj6vlZGt/D/p0BbbFphm6RDTCV1D9tu0e a2OZWZH6yIW3C82OTlNEvxbNksAI4tboSwyjnWcjIBBOoHWYRLQD5M2B+3N/xv1P2X N2JLzIlhr2QMg== Received: from localhost (cola.collaboradmins.com [195.201.22.229]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (prime256v1) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: cristicc) by madrid.collaboradmins.com (Postfix) with ESMTPSA id 6205D37814B0; Fri, 26 Jan 2024 19:13:22 +0000 (UTC) From: Cristian Ciocaltea To: "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Emil Renner Berthing , Samin Guo , Alexandre Torgue , Jose Abreu , Maxime Coquelin , Giuseppe Cavallaro , Andrew Lunn , Jacob Keller Cc: netdev@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, kernel@collabora.com Subject: [PATCH v4 1/2] dt-bindings: net: starfive,jh7110-dwmac: Add JH7100 SoC compatible Date: Fri, 26 Jan 2024 21:13:16 +0200 Message-ID: <20240126191319.1209821-2-cristian.ciocaltea@collabora.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240126191319.1209821-1-cristian.ciocaltea@collabora.com> References: <20240126191319.1209821-1-cristian.ciocaltea@collabora.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 The Synopsys DesignWare MAC found on StarFive JH7100 SoC is mostly similar to the newer JH7110, but it requires only two interrupts and a single reset line, which is 'ahb' instead of the commonly used 'stmmaceth'. Since the common binding 'snps,dwmac' allows selecting 'ahb' only in conjunction with 'stmmaceth', extend the logic to also permit exclusive usage of the 'ahb' reset name. This ensures the following use cases are supported: JH7110: reset-names = "stmmaceth", "ahb"; JH7100: reset-names = "ahb"; other: reset-names = "stmmaceth"; Also note the need to use a different dwmac fallback, as v5.20 applies to JH7110 only, while JH7100 relies on v3.7x. Additionally, drop the reset description items from top-level binding as they are already provided by the included snps,dwmac schema. Signed-off-by: Cristian Ciocaltea Reviewed-by: Jacob Keller --- .../devicetree/bindings/net/snps,dwmac.yaml | 11 +-- .../bindings/net/starfive,jh7110-dwmac.yaml | 72 +++++++++++++------ 2 files changed, 57 insertions(+), 26 deletions(-) diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml index 5c2769dc689a..90c4db178c67 100644 --- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml +++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml @@ -95,6 +95,7 @@ properties: - snps,dwmac-5.20 - snps,dwxgmac - snps,dwxgmac-2.10 + - starfive,jh7100-dwmac - starfive,jh7110-dwmac reg: @@ -144,10 +145,12 @@ properties: - description: AHB reset reset-names: - minItems: 1 - items: - - const: stmmaceth - - const: ahb + oneOf: + - items: + - enum: [stmmaceth, ahb] + - items: + - const: stmmaceth + - const: ahb power-domains: maxItems: 1 diff --git a/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml b/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml index 5e7cfbbebce6..0d1962980f57 100644 --- a/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml +++ b/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml @@ -16,16 +16,20 @@ select: compatible: contains: enum: + - starfive,jh7100-dwmac - starfive,jh7110-dwmac required: - compatible properties: compatible: - items: - - enum: - - starfive,jh7110-dwmac - - const: snps,dwmac-5.20 + oneOf: + - items: + - const: starfive,jh7100-dwmac + - const: snps,dwmac + - items: + - const: starfive,jh7110-dwmac + - const: snps,dwmac-5.20 reg: maxItems: 1 @@ -46,24 +50,6 @@ properties: - const: tx - const: gtx - interrupts: - minItems: 3 - maxItems: 3 - - interrupt-names: - minItems: 3 - maxItems: 3 - - resets: - items: - - description: MAC Reset signal. - - description: AHB Reset signal. - - reset-names: - items: - - const: stmmaceth - - const: ahb - starfive,tx-use-rgmii-clk: description: Tx clock is provided by external rgmii clock. @@ -94,6 +80,48 @@ required: allOf: - $ref: snps,dwmac.yaml# + - if: + properties: + compatible: + contains: + const: starfive,jh7100-dwmac + then: + properties: + interrupts: + minItems: 2 + maxItems: 2 + + interrupt-names: + minItems: 2 + maxItems: 2 + + resets: + maxItems: 1 + + reset-names: + const: ahb + + - if: + properties: + compatible: + contains: + const: starfive,jh7110-dwmac + then: + properties: + interrupts: + minItems: 3 + maxItems: 3 + + interrupt-names: + minItems: 3 + maxItems: 3 + + resets: + minItems: 2 + + reset-names: + minItems: 2 + unevaluatedProperties: false examples: From patchwork Fri Jan 26 19:21:26 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cristian Ciocaltea X-Patchwork-Id: 766592 Received: from madrid.collaboradmins.com (madrid.collaboradmins.com [46.235.227.194]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 552BA224DA; Fri, 26 Jan 2024 19:21:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.227.194 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706296908; cv=none; b=cjjfBjla/0ObozzBi5UD0zfxGfeFUBhKrjuyJT3Z9TgZOQqa7aKEv58Eoi9kSICZsDyzyPrPxksKRrJuFF66qbdQ3ZDGVeUzYDGeBNB90BbEBFhU+qCgQ8yAvCSdHNYzICUqQbIbSmOofsVcbDr5YhWEN6HeS3h3DGgzNrzDUO8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706296908; c=relaxed/simple; bh=WQe4wDwRNT0S65UeCvFunjCWa8R+Rf3G+Co3wYKG0EU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; 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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Emil Renner Berthing , Samin Guo , Alexandre Torgue , Jose Abreu , Maxime Coquelin , Giuseppe Cavallaro , Andrew Lunn , Jacob Keller Cc: netdev@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, kernel@collabora.com Subject: [RESEND PATCH v4 2/2] net: stmmac: dwmac-starfive: Add support for JH7100 SoC Date: Fri, 26 Jan 2024 21:21:26 +0200 Message-ID: <20240126192128.1210579-3-cristian.ciocaltea@collabora.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240126192128.1210579-1-cristian.ciocaltea@collabora.com> References: <20240126192128.1210579-1-cristian.ciocaltea@collabora.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add a missing quirk to enable support for the StarFive JH7100 SoC. Additionally, for greater flexibility in operation, allow using the rgmii-rxid and rgmii-txid phy modes. Co-developed-by: Emil Renner Berthing Signed-off-by: Emil Renner Berthing Signed-off-by: Cristian Ciocaltea Reviewed-by: Jacob Keller Reviewed-by: Andrew Lunn --- drivers/net/ethernet/stmicro/stmmac/Kconfig | 6 ++-- .../ethernet/stmicro/stmmac/dwmac-starfive.c | 32 ++++++++++++++++--- 2 files changed, 31 insertions(+), 7 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethernet/stmicro/stmmac/Kconfig index 85dcda51df05..4ec61f1ee71a 100644 --- a/drivers/net/ethernet/stmicro/stmmac/Kconfig +++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig @@ -165,9 +165,9 @@ config DWMAC_STARFIVE help Support for ethernet controllers on StarFive RISC-V SoCs - This selects the StarFive platform specific glue layer support for - the stmmac device driver. This driver is used for StarFive JH7110 - ethernet controller. + This selects the StarFive platform specific glue layer support + for the stmmac device driver. This driver is used for the + StarFive JH7100 and JH7110 ethernet controllers. config DWMAC_STI tristate "STi GMAC support" diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c index 5d630affb4d1..4e1076faee0c 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive.c @@ -15,13 +15,20 @@ #include "stmmac_platform.h" -#define STARFIVE_DWMAC_PHY_INFT_RGMII 0x1 -#define STARFIVE_DWMAC_PHY_INFT_RMII 0x4 -#define STARFIVE_DWMAC_PHY_INFT_FIELD 0x7U +#define STARFIVE_DWMAC_PHY_INFT_RGMII 0x1 +#define STARFIVE_DWMAC_PHY_INFT_RMII 0x4 +#define STARFIVE_DWMAC_PHY_INFT_FIELD 0x7U + +#define JH7100_SYSMAIN_REGISTER49_DLYCHAIN 0xc8 + +struct starfive_dwmac_data { + unsigned int gtxclk_dlychain; +}; struct starfive_dwmac { struct device *dev; struct clk *clk_tx; + const struct starfive_dwmac_data *data; }; static void starfive_dwmac_fix_mac_speed(void *priv, unsigned int speed, unsigned int mode) @@ -67,6 +74,8 @@ static int starfive_dwmac_set_mode(struct plat_stmmacenet_data *plat_dat) case PHY_INTERFACE_MODE_RGMII: case PHY_INTERFACE_MODE_RGMII_ID: + case PHY_INTERFACE_MODE_RGMII_RXID: + case PHY_INTERFACE_MODE_RGMII_TXID: mode = STARFIVE_DWMAC_PHY_INFT_RGMII; break; @@ -89,6 +98,14 @@ static int starfive_dwmac_set_mode(struct plat_stmmacenet_data *plat_dat) if (err) return dev_err_probe(dwmac->dev, err, "error setting phy mode\n"); + if (dwmac->data) { + err = regmap_write(regmap, JH7100_SYSMAIN_REGISTER49_DLYCHAIN, + dwmac->data->gtxclk_dlychain); + if (err) + return dev_err_probe(dwmac->dev, err, + "error selecting gtxclk delay chain\n"); + } + return 0; } @@ -114,6 +131,8 @@ static int starfive_dwmac_probe(struct platform_device *pdev) if (!dwmac) return -ENOMEM; + dwmac->data = device_get_match_data(&pdev->dev); + dwmac->clk_tx = devm_clk_get_enabled(&pdev->dev, "tx"); if (IS_ERR(dwmac->clk_tx)) return dev_err_probe(&pdev->dev, PTR_ERR(dwmac->clk_tx), @@ -144,8 +163,13 @@ static int starfive_dwmac_probe(struct platform_device *pdev) return stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res); } +static const struct starfive_dwmac_data jh7100_data = { + .gtxclk_dlychain = 4, +}; + static const struct of_device_id starfive_dwmac_match[] = { - { .compatible = "starfive,jh7110-dwmac" }, + { .compatible = "starfive,jh7100-dwmac", .data = &jh7100_data }, + { .compatible = "starfive,jh7110-dwmac" }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, starfive_dwmac_match);