From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 9240F13B591; Fri, 29 Mar 2024 12:27:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711715225; cv=none; b=jKgVYkcjBnOyAKZvbuFHq0NawhQe7Zuk7ahg+Sh8zh2s/UvAFTy0Xrc/dOKOp1CynbdI6UHVQW0boWiRL5lWXvwhezlMkn5W4qWmOj8chWs9+xTpQE8ADnfTML2jeAYNoUgyCEdUyn9mbsm4fbsqUQjfxCAEfL0IVb/1qq7VNbY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711715225; c=relaxed/simple; bh=eiHczAN8CfBkmWQPdjGmY28oSD8yxl/F8O6h6t+qqUM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=oMUWMCMRWXW+Xtxt9Ul4dH45Ko95rhlZ5puL62PDhXKL2tUBOx6V7AJh4WtpWEE+c79p/JrmiGFPtq7ABewpSo+e7YCPyKePjHJH5I6sQvL5K9s2c7L/q+q1tfck/KmQFGeo7bpANLcRr6Fq3Vn5sR6xMIJ//mgyOB/T8zGTWgA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=c+OlNWxw; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="c+OlNWxw" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4C513C433F1; Fri, 29 Mar 2024 12:27:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1711715225; bh=eiHczAN8CfBkmWQPdjGmY28oSD8yxl/F8O6h6t+qqUM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=c+OlNWxwI11rReL/FXJHXPDvmJ+ehzFgAICJKDyUL0ZzpzCdWX+EJ0bnUI/tPVlKG cqk8yzTukY5Zv+x6jRE948s49uNJxlmCO8WduLuFoeFYAhkaQ03fP+ydhn4oHMOeyq Pd5BJLrEM5irhqEGpkLRBe4KKE+7jJaAlGZ7dasLMNRCnudRN7tdqK7vsVS7VWyLRf MrpJFwIiH87xjL1lUk1hdYN31kNjlTXOSwKQIrnS7ccVksFCsnkEqHtKvSRFBbSBYw EViqpBVRJnIoP9AUTMBCE0934b6wpiA5wCgPoycQtm07XGJWFUtc9AAAsNL5tSFTIo jFbAYchxy0lRg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Cristian Ciocaltea , Emil Renner Berthing , Jacob Keller , Andrew Lunn , "David S . Miller" , Sasha Levin , alexandre.torgue@foss.st.com, joabreu@synopsys.com, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, mcoquelin.stm32@gmail.com, samin.guo@starfivetech.com, netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Subject: [PATCH AUTOSEL 6.8 07/68] net: stmmac: dwmac-starfive: Add support for JH7100 SoC Date: Fri, 29 Mar 2024 08:25:03 -0400 Message-ID: <20240329122652.3082296-7-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240329122652.3082296-1-sashal@kernel.org> References: <20240329122652.3082296-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.8.2 Content-Transfer-Encoding: 8bit From: Cristian Ciocaltea [ Upstream commit 8d4597b871210429bda0f5c3a8816b7d9b6daf7e ] 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 Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- 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 85dcda51df052..4ec61f1ee71a2 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 5d630affb4d15..4e1076faee0cd 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); -- 2.43.0