From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-180.mta1.migadu.com (out-180.mta1.migadu.com [95.215.58.180]) (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 79AFB27FD5D for ; Tue, 1 Jul 2025 16:51:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.180 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751388695; cv=none; b=BpBaD5XkQAWq9dtyP4Yu7UVV2rG35EIskfsFHmJnHuEldeGGZtnDmDtyaU+lBoteBmHqcyMczIKJudj/+KnE7K3O6NrpghXWD1KWr8TeM0jDrm3z9ZIUsi/d0gEoUexOECt6hxLVKDhgCYQe6ewqGEw77/3uymSAMigDNXRD77M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751388695; c=relaxed/simple; bh=B/taMgfwrhTGncrj3ZJ43u+lA+ZCcutiEzsqql9X8Q8=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=fqlolKdAH9DvUjnywpGFuIE2YxwjBznCoLP32E+Tx+2Aw86Al65bEkBRxjRpe4uo1YFjqjQtCm4swYS3BI0I8yyUuBnWay3n4WNCU++eUnKmljXhdybgPkIalJZqYOeEn+9NhAa9MgmcVydvnets00hDQeVYp5u3MWuOv+vTVLw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=K14Ov+NR; arc=none smtp.client-ip=95.215.58.180 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="K14Ov+NR" Message-ID: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1751388680; 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=fFV2Y1ZWu7rW4X21P0xZgpGTDxMq6xKQ6i6Q3MK2S08=; b=K14Ov+NR3NsVPzQm7eadWphxZ3H+IIaVGvtE3m9uhaob7QgGFkE642v1NQgYUgPJo7ly2m C2uu1rxJDY1LaRC/5O/6HzgrnfbANHAN8uoyrKr0VGaU5YVZS+pv5s+gUPIyc/BKP21O2H a8oUKIUnwgutjKv5ZXIirwZ5Fhb4Vdw= Date: Tue, 1 Jul 2025 12:51:10 -0400 Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Subject: Re: [PATCH net-next v2 15/18] net: macb: Add "mobileye,eyeq5-gem" compatible To: =?UTF-8?Q?Th=C3=A9o_Lebrun?= , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Nicolas Ferre , Claudiu Beznea , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Samuel Holland , Richard Cochran , Russell King , Thomas Bogendoerfer , Vladimir Kondratiev , Gregory CLEMENT , Cyrille Pitchen , Harini Katakam , Rafal Ozieblo , Haavard Skinnemoen , Jeff Garzik Cc: netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, linux-mips@vger.kernel.org, Thomas Petazzoni , Tawfik Bayouk References: <20250627-macb-v2-0-ff8207d0bb77@bootlin.com> <20250627-macb-v2-15-ff8207d0bb77@bootlin.com> Content-Language: en-US X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Sean Anderson In-Reply-To: <20250627-macb-v2-15-ff8207d0bb77@bootlin.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT On 6/27/25 05:09, Théo Lebrun wrote: > Add support for the two GEM instances inside Mobileye EyeQ5 SoCs, using > compatible "mobileye,eyeq5-gem". With it, add a custom init sequence > that accesses two system-controller registers. > > Noteworthy: NET_IP_ALIGN=2 on MIPS but the hardware does not align and > low bits aren't configurable, so we cannot respect the requested IP > header alignment. > > Signed-off-by: Théo Lebrun > --- > drivers/net/ethernet/cadence/macb_main.c | 80 ++++++++++++++++++++++++++++++++ > 1 file changed, 80 insertions(+) > > diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c > index f9a3a5caebcafe3d9197a3bc7681b64734d7ac93..ed394e5d1ec9b1748282f1448628d5006f3b0971 100644 > --- a/drivers/net/ethernet/cadence/macb_main.c > +++ b/drivers/net/ethernet/cadence/macb_main.c > @@ -20,6 +20,7 @@ > #include > #include > #include > +#include > #include > #include > #include > @@ -31,6 +32,7 @@ > #include > #include > #include > +#include > #include > #include > #include > @@ -4957,6 +4959,72 @@ static int init_reset_optional(struct platform_device *pdev) > return ret; > } > > +#define EYEQ5_OLB_GP_TX_SWRST_DIS BIT(0) // Tx SW reset > +#define EYEQ5_OLB_GP_TX_M_CLKE BIT(1) // Tx M clock enable > +#define EYEQ5_OLB_GP_SYS_SWRST_DIS BIT(2) // Sys SW reset > +#define EYEQ5_OLB_GP_SYS_M_CLKE BIT(3) // Sys clock enable > +#define EYEQ5_OLB_GP_SGMII_MODE BIT(4) // SGMII mode > +#define EYEQ5_OLB_GP_RGMII_DRV GENMASK(8, 5) // RGMII mode > + > +#define EYEQ5_OLB_SGMII_PWR_EN BIT(0) > +#define EYEQ5_OLB_SGMII_RST_DIS BIT(1) > +#define EYEQ5_OLB_SGMII_PLL_EN BIT(2) > +#define EYEQ5_OLB_SGMII_SIG_DET_SW BIT(3) > +#define EYEQ5_OLB_SGMII_PWR_STATE BIT(4) > +#define EYEQ5_OLB_SGMII_PLL_ACK BIT(18) > + > +static int eyeq5_init(struct platform_device *pdev) > +{ > + struct device *dev = &pdev->dev; > + struct net_device *netdev = platform_get_drvdata(pdev); > + struct macb *bp = netdev_priv(netdev); > + struct device_node *np = dev->of_node; > + unsigned int gp, sgmii; > + struct regmap *regmap; > + unsigned int args[2]; > + unsigned int reg; > + int ret; > + > + regmap = syscon_regmap_lookup_by_phandle_args(np, "mobileye,olb", 2, args); > + if (IS_ERR(regmap)) > + return PTR_ERR(regmap); > + > + gp = args[0]; > + sgmii = args[1]; > + > + /* Forced reset */ > + regmap_write(regmap, gp, 0); > + regmap_write(regmap, sgmii, 0); > + usleep_range(5, 20); > + > + if (bp->phy_interface == PHY_INTERFACE_MODE_SGMII) Isn't this too early? What if you have an SFP and the interface mode is initially 1000Base-X and the user plugs in an SGMII module? { > + regmap_write(regmap, gp, EYEQ5_OLB_GP_SGMII_MODE); > + > + reg = EYEQ5_OLB_SGMII_PWR_EN | EYEQ5_OLB_SGMII_RST_DIS | > + EYEQ5_OLB_SGMII_PLL_EN; > + regmap_write(regmap, sgmii, reg); > + > + ret = regmap_read_poll_timeout(regmap, sgmii, reg, > + reg & EYEQ5_OLB_SGMII_PLL_ACK, > + 1, 100); > + if (ret) > + return dev_err_probe(dev, ret, "PLL timeout"); > + > + reg = EYEQ5_OLB_SGMII_PWR_STATE | EYEQ5_OLB_SGMII_SIG_DET_SW; > + regmap_update_bits(regmap, sgmii, reg, reg); > + } > + > + reg = phy_interface_mode_is_rgmii(bp->phy_interface) ? 0x9 : 0x0; > + regmap_update_bits(regmap, gp, EYEQ5_OLB_GP_RGMII_DRV, > + FIELD_PREP(EYEQ5_OLB_GP_RGMII_DRV, reg)); > + > + reg = EYEQ5_OLB_GP_TX_SWRST_DIS | EYEQ5_OLB_GP_TX_M_CLKE | > + EYEQ5_OLB_GP_SYS_SWRST_DIS | EYEQ5_OLB_GP_SYS_M_CLKE; > + regmap_update_bits(regmap, gp, reg, reg); > + > + return macb_init(pdev); > +} > + > static const struct macb_usrio_config sama7g5_usrio = { > .mii = 0, > .rmii = 1, > @@ -5109,6 +5177,17 @@ static const struct macb_config versal_config = { > .usrio = &macb_default_usrio, > }; > > +static const struct macb_config eyeq5_config = { > + .caps = MACB_CAPS_GIGABIT_MODE_AVAILABLE | MACB_CAPS_JUMBO | > + MACB_CAPS_GEM_HAS_PTP | MACB_CAPS_QUEUE_DISABLE | > + MACB_CAPS_NO_LSO, > + .dma_burst_length = 16, > + .clk_init = macb_clk_init, > + .init = eyeq5_init, > + .jumbo_max_len = 10240, > + .usrio = &macb_default_usrio, > +}; > + > static const struct of_device_id macb_dt_ids[] = { > { .compatible = "cdns,at91sam9260-macb", .data = &at91sam9260_config }, > { .compatible = "cdns,macb" }, > @@ -5129,6 +5208,7 @@ static const struct of_device_id macb_dt_ids[] = { > { .compatible = "microchip,mpfs-macb", .data = &mpfs_config }, > { .compatible = "microchip,sama7g5-gem", .data = &sama7g5_gem_config }, > { .compatible = "microchip,sama7g5-emac", .data = &sama7g5_emac_config }, > + { .compatible = "mobileye,eyeq5-gem", .data = &eyeq5_config }, > { .compatible = "xlnx,zynqmp-gem", .data = &zynqmp_config}, > { .compatible = "xlnx,zynq-gem", .data = &zynq_config }, > { .compatible = "xlnx,versal-gem", .data = &versal_config}, > From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B3C98C8303C for ; Tue, 1 Jul 2025 19:00:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:From:References:Cc:To: Subject:MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=mTznB1L4RXragg1/zi2yLKOAV7bKYjEIjmsbDsnLMg4=; b=RZnOhha60mSqR8 ry2zTUNy/qTjmk08EU7TF9hX4bNcLuzvS89K+oLjFZwyr1Z3oFmOPT9KjaARcCRtHNXV61oTx0gxi uXUGT6JR4R/0k1D3oZ0RZPjFbYrLlNuq7tSXkZELHobP0bR5E3uEskD/sIVTmDm+Yy+fOZdNanmAK vOHQ5te+vDKmMVDbnUoqzGMKb1cTjnhdu24Wjb9xDJhMXUmEe4qa5KsVndSkw/1OI2w/WOdpUQdRW lulWttrS/A+dq5FyiJ9ir22MQ4ZM62j5IwW5d5Q2p5MkyTfsq2DzgVx6cvcHO8TI0MxHPB7NT0oNP kfmV7ukhaSGNm9P9CDUg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uWgDb-00000006POq-1PBY; Tue, 01 Jul 2025 19:00:35 +0000 Received: from out-177.mta1.migadu.com ([2001:41d0:203:375::b1]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uWeCa-0000000676M-0XGU for linux-riscv@lists.infradead.org; Tue, 01 Jul 2025 16:51:25 +0000 Message-ID: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1751388680; 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=fFV2Y1ZWu7rW4X21P0xZgpGTDxMq6xKQ6i6Q3MK2S08=; b=K14Ov+NR3NsVPzQm7eadWphxZ3H+IIaVGvtE3m9uhaob7QgGFkE642v1NQgYUgPJo7ly2m C2uu1rxJDY1LaRC/5O/6HzgrnfbANHAN8uoyrKr0VGaU5YVZS+pv5s+gUPIyc/BKP21O2H a8oUKIUnwgutjKv5ZXIirwZ5Fhb4Vdw= Date: Tue, 1 Jul 2025 12:51:10 -0400 MIME-Version: 1.0 Subject: Re: [PATCH net-next v2 15/18] net: macb: Add "mobileye,eyeq5-gem" compatible To: =?UTF-8?Q?Th=C3=A9o_Lebrun?= , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Nicolas Ferre , Claudiu Beznea , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Samuel Holland , Richard Cochran , Russell King , Thomas Bogendoerfer , Vladimir Kondratiev , Gregory CLEMENT , Cyrille Pitchen , Harini Katakam , Rafal Ozieblo , Haavard Skinnemoen , Jeff Garzik Cc: netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, linux-mips@vger.kernel.org, Thomas Petazzoni , Tawfik Bayouk References: <20250627-macb-v2-0-ff8207d0bb77@bootlin.com> <20250627-macb-v2-15-ff8207d0bb77@bootlin.com> Content-Language: en-US X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Sean Anderson In-Reply-To: <20250627-macb-v2-15-ff8207d0bb77@bootlin.com> X-Migadu-Flow: FLOW_OUT X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250701_095124_321343_BB9A88A7 X-CRM114-Status: GOOD ( 21.60 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org T24gNi8yNy8yNSAwNTowOSwgVGjDqW8gTGVicnVuIHdyb3RlOgo+IEFkZCBzdXBwb3J0IGZvciB0 aGUgdHdvIEdFTSBpbnN0YW5jZXMgaW5zaWRlIE1vYmlsZXllIEV5ZVE1IFNvQ3MsIHVzaW5nCj4g Y29tcGF0aWJsZSAibW9iaWxleWUsZXllcTUtZ2VtIi4gV2l0aCBpdCwgYWRkIGEgY3VzdG9tIGlu aXQgc2VxdWVuY2UKPiB0aGF0IGFjY2Vzc2VzIHR3byBzeXN0ZW0tY29udHJvbGxlciByZWdpc3Rl 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