From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oa2-f21.google.com (mail-oa2-f21.google.com [74.125.231.85]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8AC9050B41A for ; Thu, 17 Sep 2026 17:55:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.231.85 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789667728; cv=none; b=u/Dm2AJevDNF2/gPpS+iQ2U9oeRhdxRzd+SWsxkYxa+l0++NYoA2zJQJCC+uAVs1hAFkGxqTsp7SqsBnvOy5QHX95I/PF9OzjKLTGqRTI9JdAJ7nHgJxn8OQTePyK5bDkXV55BgjXqBR91h7oKFXd1lo7XkVYkw5+oUmy2nT/CE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789667728; c=relaxed/simple; bh=TBZYNnslEgmqiIFbP9mDmQG8f/Ol4S/uoq75IjbY8ng=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=m8RTeu5BQXwLBYe59QZiNpNJPyn4oC9fNKmwW6KmED1Y1zMGQirGyb55LfazZNjrCELi38dKN5ku4T/pD6TGV270miJrqn2hpV1wtEX8Tim8rrrPXLuJDkRrmA5mCkL6lnPjudgDS+PHyTTIzprLz0WIetMvcHKwzUyaPvks38M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=nT5I6qAc; arc=none smtp.client-ip=74.125.231.85 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="nT5I6qAc" Received: by mail-oa2-f21.google.com with SMTP id 586e51a60fabf-466ccbd4773so446391fac.2 for ; Thu, 17 Sep 2026 10:55:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1789667725; x=1790272525; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :content-type:mime-version:subject:date:from:from:to:cc:subject:date :message-id:reply-to:content-type; bh=phbcC86CmmKUH9rw46P9WlcsDl/Y5d267n36zdxy5Pw=; b=nT5I6qAcfjrnW1Cn9I2u45erGUmT77vai/y0vAYBGJDagsAp9veTcsk/Azx87LFug0 cl4MRzR9NoGJSTOBHii0lK/OovNpQI/wJvdA+GYjmuqASYZeXnAasrO5hqnOrag+drSY 6TYVr8GTYNaLHQsnpdfuh5LRCdpw9vx6vIRMH3rd2TIGMEmx900nHc7yX4DTb6wRyQcY H2LHVaqXJ4y8ERUN79RJRld5BRu4lC8/qOgioBBjI0WpmfugC6vaFuZu5bdGKpNYUtgH NzVOCmcXiYGoIKzYYGke2P5Bv+ZtHz63XLQ2V1aMIvGCneCqxQHDEcbYrQ7qzs1diZcG V49g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1789667725; x=1790272525; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :content-type:mime-version:subject:date:from:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=phbcC86CmmKUH9rw46P9WlcsDl/Y5d267n36zdxy5Pw=; b=jBFrs6T5u6KKPCMbHqrNlKAauLqWVfwclc0ZOmEy9E7D8SsMVTSTaFWbh2W9J7cC2p cdyV3oSPXzl9r51HGigMbpUBWhnxpDMqGbf+HmFJjHezp9+n3XyGxjsL/EvBDhvUvOtq y5lszROT/TroWZ//jLU6TP9ZNRjkbnQKcUs2phlPrwORm15B0rJRTypDmARzcI+GqghN EoBWmZWp2sJx/TFSK8EmMw/6YxBq3EwXcBvQeCNavNGf8/A8wxLdWo2N+vOfKbgKhHp1 AEjJA998RKRqsG0zP8TRuCpTiB4ydMECEn85VATmJhy50bzaoZuPzHZl4xEa+YMW6WS4 ooVQ== X-Forwarded-Encrypted: i=1; AKwUvBw0Ztlehr8luHR2e0KdAYz0UM9DO3JUotRysTMxLJpsJLQbRQHxTnxK4IZbYOyi9RZpEQG634ky/VsOXuQ=@vger.kernel.org X-Gm-Message-State: AFuF++n6tNr5UV2jE77AALQL4nNFb80ppgtbMPKDcxqPnurPCalfG0Jp eBuK/wV9BT52TWZnbvVvU4ocb6AndnYFyQGN+JL/eeFb2MgfN17g2oFe X-Gm-Gg: AYBFou2EiEZCkh60HZJtHlpeqpTzBMGaVMZOm/cThkVDVfapjEryDf+06wLp4PRvuhL u7vXy5KWf8EHFqa0S/NbMlEQ1fhuMvajQFHauXs+pc8f1md+Rc2D668Pgtp9KV6VBaLN2xFqI3L 5WU57B2f3Em6UAk9zV8FwJZcn/8M1gIdW871xODfyV+RfpHym2de95LU6Yp93dTNp6btG6JDmu4 VdpZInJCStzzK3RDKx+Yi51QZPKNGUU7rdwiTOq8uIRY4sHAjhqFABAs/GjGeeDOYCmmmm4XS5H 8siVisoTTCvx+h6kzyoMan1sa3LRoOzp1nqOpRMr+qhpZrLzrlCfYwo5YIf1GkyjsMSv7ohCjKh xWefe8mdy2eg9kTJPy8swWuggWPDIKBnz94q1r9zp1TPe4gNpMlSxTE/YI405aMGM1vVba8t+2e 0KBg5qYP4YQO5BVT+y8rZyRfvEtvev/Ms7hZWfp7h4GvrY8MvjjwkbwfQ0SC2+LD7SyhOUfh6c8 8gzhNvj46J1sY2ANsfrvBJngyHZpESdlLOkgXZjXW9mGR5EClYASqR5VClN6mvevqQjFGiSpGuM 0Ef3UFAsqhSG5XDCUUSj4N+HNHBKvuBLiR0dpHdJ+exQaHG98Pry1Y3/qOs9FVFiOohm7NRJf1U HpQC0QSM49txMnfc8el5S X-Received: by 2002:a05:6870:1696:b0:46a:c0ff:feab with SMTP id 586e51a60fabf-484752f7f6fmr6824911fac.6.1789667724804; Thu, 17 Sep 2026 10:55:24 -0700 (PDT) Received: from [127.0.1.1] (174-29-1-49.hlrn.qwest.net. [174.29.1.49]) by smtp.gmail.com with ESMTPSA id 586e51a60fabf-486ab6c1f31sm578446fac.10.2026.09.17.10.55.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 17 Sep 2026 10:55:24 -0700 (PDT) From: James Hilliard Date: Thu, 17 Sep 2026 11:55:14 -0600 Subject: [PATCH net-next v3 3/3] net: stmmac: sun8i: add support for Allwinner H616 EMAC1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260917-submit-h616-emac1-v1-v3-3-62cb8316e19b@gmail.com> References: <20260917-submit-h616-emac1-v1-v3-0-62cb8316e19b@gmail.com> In-Reply-To: <20260917-submit-h616-emac1-v1-v3-0-62cb8316e19b@gmail.com> To: Richard Genoud , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Alexandre Torgue , Giuseppe Cavallaro , Jose Abreu , Maxime Chevallier , Maxime Coquelin Cc: Maxime Ripard , Alastair D'Silva , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, James Hilliard X-Mailer: b4 0.15.2 The H616 secondary EMAC uses a separate system-control clock register and supports only RMII at 10/100 Mbps. It connects internally to the co-packaged AC200 or AC300 EPHY and has no external PHY pins. Add an EMAC1 variant using the dedicated register and enable only RMII. Leave PHY initialization to the PHY driver instead of using the H3 internal-PHY controls. No RX or TX clock delays are configured for this RMII-only variant. Co-developed-by: Richard Genoud Signed-off-by: Richard Genoud Signed-off-by: James Hilliard --- drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c index 4523a14f5e0c..1020168f1c3a 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c @@ -81,6 +81,13 @@ static const struct reg_field sun8i_syscon_reg_field = { .msb = 31, }; +/* EMAC1 clock register @ 0x34 in the "system control" address range */ +static const struct reg_field sun8i_syscon_reg_field_emac1 = { + .reg = 0x34, + .lsb = 0, + .msb = 31, +}; + /* EMAC clock register @ 0x164 in the CCU address range */ static const struct reg_field sun8i_ccu_reg_field = { .reg = 0x164, @@ -143,6 +150,13 @@ static const struct emac_variant emac_variant_h6 = { .tx_delay_max = 7, }; +static const struct emac_variant emac_variant_h616_emac1 = { + .syscon_field = &sun8i_syscon_reg_field_emac1, + /* The co-packaged AC200/AC300 PHY does not use the H3 PHY controls. */ + .soc_has_internal_phy = false, + .support_rmii = true, +}; + #define EMAC_BASIC_CTL0 0x00 #define EMAC_BASIC_CTL1 0x04 #define EMAC_INT_STA 0x08 @@ -1276,6 +1290,8 @@ static const struct of_device_id sun8i_dwmac_match[] = { .data = &emac_variant_a64 }, { .compatible = "allwinner,sun50i-h6-emac", .data = &emac_variant_h6 }, + { .compatible = "allwinner,sun50i-h616-emac1", + .data = &emac_variant_h616_emac1 }, { } }; MODULE_DEVICE_TABLE(of, sun8i_dwmac_match); -- 2.53.0