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 C8D53C05027 for ; Wed, 15 Feb 2023 00:35:30 +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-Type: Content-Transfer-Encoding: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=EA+9hL9H+BqSBYkPMPOvsiyxoeX+fbgPwLQftx62NTo=; b=PNjEf+cOXr3J7V jIPOe3L9yEJhU0nmDjVGWhewCfarPm+YxL2qFmJxiYd4ZrR796WhNDLmxgBQP8ygXZM6qWQ3tUcCD FCcH8LYhQuNPQqK46r59apKNx7vUj0wtlgXgpQv+Wazobu2n5jnS2DPX4GpwmK8N2LJrG9/A8YfIc mG/Z1QoKuXrtrDy5v36DUTHfaGjcmQh/geo5eHlrrLyWCeBZ7wukvQdc9H1JeZYw3F4okTEgdF9cu DS3CXnACHTKXWubgYKZe5pMJ679YBmj3f3UHeplKiUwCPKg4r2D/tvk8tl9qP5swc3/fpTwhNR0fP rNK1zS2qOlzX2mC9YqZA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pS5kn-0044PF-7X; Wed, 15 Feb 2023 00:34:33 +0000 Received: from madras.collabora.co.uk ([46.235.227.172]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pS5kk-0044O5-Fh; Wed, 15 Feb 2023 00:34:31 +0000 Received: from [192.168.1.90] (unknown [86.120.32.152]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) (Authenticated sender: cristicc) by madras.collabora.co.uk (Postfix) with ESMTPSA id 402C0660217D; Wed, 15 Feb 2023 00:34:26 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1676421268; bh=GPRpB7l0KFvDAe90l47jGxlxu/5Kcdt9J/hi24/5C7w=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=KGwXRBM+CqsY8WuVEfFGb/3XE6k5Po4N/V7S5ZYtvlN9vFIQGjvcSa80xB+QIKeNu nLP/oA1H5uIjgN/mRBN1QDxHG+RER1Q/j6jnvPPM6DdDMLZN8ieUtg3ARbQ8XGAKdQ DuYxDMbfPlM5EsnNFnlIWZ7oQ4xKlwvvcxGsbJWrclFzyrD/zP7icr+xtrhCCBnY/A Mi+ycV2kn42zsBBiGOr9OvgoXz6x2i0TQIfF0KdM4BO7RRYVK52qEsvnin9rSNKyn7 iXTQk09k1+rOU5CDn28q1vB64m62J9RTYcCCVFOLohT2yv+B+1K8P/TjbJktfwRRYX B5LfeJ39Hm8Ow== Message-ID: <586971af-2d78-456d-a605-6c7b2aefda91@collabora.com> Date: Wed, 15 Feb 2023 02:34:23 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.7.2 Subject: Re: [PATCH 07/12] dt-bindings: net: Add StarFive JH7100 SoC Content-Language: en-US To: Andrew Lunn Cc: Lee Jones , Rob Herring , Krzysztof Kozlowski , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Emil Renner Berthing , Conor Dooley , Palmer Dabbelt , Paul Walmsley , Albert Ou , Giuseppe Cavallaro , Alexandre Torgue , Jose Abreu , Maxime Coquelin , Richard Cochran , Sagar Kadam , Yanhong Wang , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-riscv@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, kernel@collabora.com References: <20230211031821.976408-1-cristian.ciocaltea@collabora.com> <20230211031821.976408-8-cristian.ciocaltea@collabora.com> From: Cristian Ciocaltea In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230214_163430_682119_A567840A X-CRM114-Status: GOOD ( 13.31 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 2/11/23 18:01, Andrew Lunn wrote: >> + starfive,gtxclk-dlychain: >> + $ref: /schemas/types.yaml#/definitions/uint32 >> + description: GTX clock delay chain setting > > Please could you add more details to this. Is this controlling the > RGMII delays? 0ns or 2ns? This is what gets written to JH7100_SYSMAIN_REGISTER49 and it's currently set to 4 in patch 12/12. As already mentioned, I don't have the register information in the datasheet, but I'll update this as soon as we get some details. >> + gmac: ethernet@10020000 { >> + compatible = "starfive,jh7100-dwmac", "snps,dwmac"; >> + reg = <0x0 0x10020000 0x0 0x10000>; >> + clocks = <&clkgen JH7100_CLK_GMAC_ROOT_DIV>, >> + <&clkgen JH7100_CLK_GMAC_AHB>, >> + <&clkgen JH7100_CLK_GMAC_PTP_REF>, >> + <&clkgen JH7100_CLK_GMAC_GTX>, >> + <&clkgen JH7100_CLK_GMAC_TX_INV>; >> + clock-names = "stmmaceth", "pclk", "ptp_ref", "gtxc", "tx"; >> + resets = <&rstgen JH7100_RSTN_GMAC_AHB>; >> + reset-names = "ahb"; >> + interrupts = <6>, <7>; >> + interrupt-names = "macirq", "eth_wake_irq"; >> + max-frame-size = <9000>; >> + phy-mode = "rgmii-txid"; > > This is unusual. Does your board have a really long RX clock line to > insert the 2ns delay needed on the RX side? Just tested with "rgmii" and didn't notice any issues. If I'm not missing anything, I'll do the change in the next revision. > Andrew Thanks, Cristian _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel