From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-lj1-f182.google.com (mail-lj1-f182.google.com [209.85.208.182]) (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 030743ECBED for ; Wed, 5 Aug 2026 08:55:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.182 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785920148; cv=none; b=jEY5zVxBomCGm+kf/fuO+oNqBF2da1yOSksrj3pHrobQxMaSizKTR3FhMQl3lAvbAhM2CC/g+MyTsgYKi6jtgKyaNiL6gZ9yq5Evpxqalk+YBRPIVxL5xzyQMYIjtSXku5ugmYVEksLFEkciX1gMyD3Mc6OW/fwE3h0/7RYHEsI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785920148; c=relaxed/simple; bh=AxcKTep58zD42ThWIjeqxn3/2xUzVtRG8RNmD3PcLxc=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=trLa+KWRHySTjLSYguuhOLgPV4usg7/zNeGBmFnjCmHzxud8VOBR7m3jX11VChxYwkTFEMCAtnQ8kBt2KsyJGtlve3SLHXV1eSmpZYjXPsSmRh/yFKn8so+0tih5LoKF/iOeZeKFt5UoATUuQ0q9eXKjjD+ZajDNy0130Xw3LVQ= 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=gskVshpD; arc=none smtp.client-ip=209.85.208.182 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="gskVshpD" Received: by mail-lj1-f182.google.com with SMTP id 38308e7fff4ca-39c86ce9e29so5318571fa.3 for ; Wed, 05 Aug 2026 01:55:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1785920144; x=1786524944; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to:content-type; bh=zZi5geWwmUjwL4iM+G3RESSIvS9NP5v+JPOUVTxODL4=; b=gskVshpDLyI5tj9E4BNoCN4f5WWM2Pgy1pYZ3ntLSS74H2PvAncDqT9+7MDsfdO0su VWCas9ZSX5G8iilN/SrC5YXPK2lIKOdVCjnoZseFMouwCS1lhsn4eDEazrGymKUEWelQ rahBmN+Q8zgypT8/7UEQ5Sh+l1DlQLFvoK8Wia22XPupmsDI/QsFZSjWbR0r+hAVvBJT a+gcPsxzYB6u190iWkjthdjacfTAkYjN7rx8LRW3gSHz6MRzccXw6F7/pf2FKTNsfL9E tr64RNCFKtBNFtEGdod5IvGG51DwKiygOUgw+sPofgUhEHqWGe/SW2VVcDu8g7icu1Pd szxg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1785920144; x=1786524944; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=zZi5geWwmUjwL4iM+G3RESSIvS9NP5v+JPOUVTxODL4=; b=of/w4gnHSHrw+VE26FXvXSfAAeE4ufDtX5gonb1m8Qk4yCDMOICFL3/66IRbs04dpU 9rBnc+QjS4oQYP7QC/o3tnMTwcVravZs+n/QknATCxK9dbqCiaRjiMUOYl2Yf/n41nQN ToYtDII7YyosHMwRvcAggZpurw22OaKKFpOaH+iiSODXoXmElIjYUC3ndh2Xi6SUWRbo 85rD5z99WId4EWmgaurdOERQlARSdheLSPkSNXy8THyQ8O2hJ/FjJ21qYUehV/jqUuSZ 0AhEkru3CFrIzw1DAdeZgWqjGSjN4KraLSaPa0px8I09SAbVpbtR2zg3D7tglvl+sf8l mVqQ== X-Gm-Message-State: AOJu0Yy0pCUIZ056Smu8c0EcpX5mNurujcz3CZQrYz8K7l/AYfCRnrZD KlJEMq//VvkH7/D4pbyz3/Ubpm7QSB8FjzFmmNirfWuxvL6dIcZjBkTF4hbT/A== X-Gm-Gg: AR+sD10yyfX70WHpIMTd1v1qCI5eIVVUOFc7yYB4e6EsUo9uOezLhrcPgEZgIPpIrmt KkDu3/VGOqhCXU3hKQRb1oTjwXizCYTbJaNrC+50GoJZhOwQv6bRSH2YQlR25qZaw8ltsF8rgYu klihhO0FkQCztupoF0sYtXs8J1W2CAmW4j42wdWGYIHnCjP+S/hu+aOwTeh5ZVOiUoPRXh307RZ jvxdjgQDckHjRet63LzldSnwh+2HzbDI5BLpl5+nHR4mtQTcdu2NKcCvE6xI68jZ66Ehzu3x5CK OOa3xQKtAeHzk1VD1fu7Jdzj8uJtj6DLChb7Z9qPG+Ju+JxvvF07ZjkshlGk7latmRs1uS5CCfj vbNS2wZZ860BLKCqKUIvM+rNDfDxvBH9PoukJ6tEz3wcOCmw2qGbppdx1MzpZoorOnApyrNkBbh Ila0XkPJaXeJ4HDfWT4iyNQkdMpccQEWw2kk8DxHbny3qb7vFHL5wvzKetoN6bbA== X-Received: by 2002:a05:651c:551:b0:39e:b3b2:e947 with SMTP id 38308e7fff4ca-39fbb225458mr5782181fa.11.1785920143628; Wed, 05 Aug 2026 01:55:43 -0700 (PDT) Received: from NB-6746.. ([188.243.183.76]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-39fb9a152aasm7470471fa.21.2026.08.05.01.55.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 05 Aug 2026 01:55:43 -0700 (PDT) From: Artem Shimko To: netdev@vger.kernel.org, Andrew Lunn , Heiner Kallweit , Russell King , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Maxime Chevallier Cc: Artem Shimko , linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Subject: [PATCH net-next v6 0/3] Add DAPU Telecom DAP8211R(I) Gigabit Ethernet PHY driver Date: Wed, 5 Aug 2026 11:55:37 +0300 Message-ID: <20260805085540.452260-1-a.shimko.dev@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Hello, This series adds support for the DAPU Telecom DAP8211R(I) Gigabit Ethernet PHY, commonly used in enterprise and industrial networking applications. The PHY supports 10/100/1000 Mbps operation with RGMII interface and includes features such as IEEE 802.3az Energy Efficient Ethernet, IEEE 1588 SyncE. The driver implements extended register access via indirect addressing (registers 0x1E/0x1F) and provides comprehensive device tree support for RGMII delay configuration. The rx-internal-delay-ps and tx-internal-delay-ps properties allow precise tuning of clock delays in 150 ps steps from 0 to 2250 ps. This PHY is used on the NDA platform with 1G Ethernet tile and has been tested on that hardware with successful link establishment and RGMII delay tuning. $ make dt_binding_check DT_SCHEMA_FILES=dptel,dap8211r.yaml SCHEMA Documentation/devicetree/bindings/processed-schema.json CHKDT ./Documentation/devicetree/bindings LINT ./Documentation/devicetree/bindings STYLE ./Documentation/devicetree/bindings DTEX Documentation/devicetree/bindings/net/dptel,dap8211r.example.dts DTC [C] Documentation/devicetree/bindings/net/dptel,dap8211r.example.dtb $ yamllint Documentation/devicetree/bindings/net/dptel,dap8211r.yaml $ grep -i "dap8211r" Documentation/devicetree/bindings/processed-schema.json "http://devicetree.org/schemas/net/dptel,dap8211r.yaml": { "$filename": "/home/a-shimko/patchwork/linux/Documentation/devicetree/bindings/net/dptel,dap8211r.yaml", "$id": "http://devicetree.org/schemas/net/dptel,dap8211r.yaml#", "title": "DAPU Telecom DAP8211R(I) Gigabit Ethernet PHY", Working with xgmac. Board side: $ arping -I eth0 192.168.5.100 ARPING 192.168.5.1 from 192.168.5.100 eth0 Unicast reply from 192.168.5.1 [board.mac.addr] 8.543ms Unicast reply from 192.168.5.1 [board.mac.addr] 3.295ms Unicast reply from 192.168.5.1 [board.mac.addr] 4.301ms Unicast reply from 192.168.5.1 [board.mac.addr] 4.096ms Unicast reply from 192.168.5.1 [board.mac.addr] 2.872ms ... Unfortunately, there is a dependence on the axibus speed here $ iperf3 -c 192.168.5.1 Connecting to host 192.168.5.1, port 5201 [ 5] local 192.168.5.100 port 58936 connected to 192.168.5.1 port 5201 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 7.88 MBytes 65.8 Mbits/sec 0 150 KBytes [ 5] 1.00-2.00 sec 8.50 MBytes 71.4 Mbits/sec 0 165 KBytes [ 5] 2.00-3.00 sec 8.25 MBytes 69.2 Mbits/sec 0 165 KBytes [ 5] 3.00-4.01 sec 8.50 MBytes 71.1 Mbits/sec 0 165 KBytes [ 5] 4.01-5.00 sec 8.38 MBytes 70.3 Mbits/sec 0 165 KBytes [ 5] 5.00-6.00 sec 8.50 MBytes 71.5 Mbits/sec 0 165 KBytes [ 5] 6.00-7.01 sec 8.62 MBytes 72.0 Mbits/sec 0 174 KBytes [ 5] 7.01-8.00 sec 8.62 MBytes 72.8 Mbits/sec 0 174 KBytes [ 5] 8.00-9.00 sec 8.62 MBytes 72.2 Mbits/sec 0 174 KBytes [ 5] 9.00-10.04 sec 8.62 MBytes 69.9 Mbits/sec 0 174 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.04 sec 84.6 MBytes 70.7 Mbits/sec 0 sender [ 5] 0.00-10.12 sec 84.8 MBytes 70.3 Mbits/sec receiveriperf Done. $ ethtool -t eth0 ... The test extra info: 1. MAC Loopback 0 2. MAC Loopback (diff. queues) 0 3. PHY Loopback 0 ... ELP side: ... 17:29:11.974973 ARP, Reply ELP is-at elp.mac.addr(oui Unknown), length 28 17:29:12.975199 ARP, Request who-has ELP tell 192.168.5.100, length 46 17:29:12.975217 ARP, Reply ELP is-at elp.mac.addr(oui Unknown), length 28 17:29:13.975022 ARP, Request who-has ELP tell 192.168.5.100, length 46 17:29:13.975035 ARP, Reply ELP is-at elp.mac.addr(oui Unknown), length 28 17:29:14.974837 ARP, Request who-has ELP tell 192.168.5.100, length 46 17:29:14.974849 ARP, Reply ELP is-at elp.mac.addr(oui Unknown), length 28 17:29:15.975026 ARP, Request who-has ELP tell 192.168.5.100, length 46 ... Accepted connection from 192.168.5.100, port 58932 [ 5] local 192.168.5.1 port 5201 connected to 192.168.5.100 port 58936 [ ID] Interval Transfer Bitrate [ 5] 0.00-1.00 sec 7.12 MBytes 59.7 Mbits/sec [ 5] 1.00-2.00 sec 8.50 MBytes 71.3 Mbits/sec [ 5] 2.00-3.00 sec 8.50 MBytes 71.3 Mbits/sec [ 5] 3.00-4.00 sec 8.38 MBytes 70.3 Mbits/sec [ 5] 4.00-5.00 sec 8.50 MBytes 71.3 Mbits/sec [ 5] 5.00-6.00 sec 8.38 MBytes 70.3 Mbits/sec [ 5] 6.00-7.00 sec 8.62 MBytes 72.4 Mbits/sec [ 5] 7.00-8.00 sec 8.62 MBytes 72.3 Mbits/sec [ 5] 8.00-9.00 sec 8.62 MBytes 72.4 Mbits/sec [ 5] 9.00-10.00 sec 8.62 MBytes 72.4 Mbits/sec [ 5] 10.00-10.12 sec 896 KBytes 62.3 Mbits/sec - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate [ 5] 0.00-10.12 sec 84.8 MBytes 70.3 Mbits/sec receiver DTS node example: ðernet_1g_tile { ... phy-mode = "rgmii-rxid"; phy-handle = <&phy1>; ... mdio: mdio { phy1: ethernet-phy@1 { ... compatible = "ethernet-phy-id0008.011b"; rx-internal-delay-ps = <1950>; ... }; }; }; Thank you! -- Best regards, Artem Shimko ChangeLog: v5 --> v6 - Rename vendor prefix from dapu to dptel - Update DT binding filename to dptel,dap8211r.yaml - Add clarifying comments for hardware reset defaults in driver - Update rx-internal-delay-ps example in cover letter v4 --> v5 - Add Guangdong Dapu to vendor-prefixes - Remov unimplemented features from Kconfig help text - Fix inconsistent handling of RGMII delay properties - Add hardware-specified initial delay values for RX (0) and TX (1) v3 --> v4 - Drop dapu,tx-inverted-clk (vendor-specific property removed) - Fix driver behavior in relation to rgmii modes - Apply software reset before RGMII register writes v2 --> v3 - Use phy_get_internal_delay() for delay validation and selection - Add poll timeout for reset using read_poll_timeout() v1 --> v2 - Drop debugfs interface - Simplify RGMII delay reading logic using of_property_read_u32() - Fix missing newline at end of dapu,dap8211r.yaml (yamllint error) - Simplify delay property description in DT binding - Rename tx-inverted-clk to dapu,tx-inverted-clk (vendor prefix) - Replace enum with multipleOf + maximum for delay validation - Fix compatible string and tx-internal-delay-ps value in example - Remove rounding logic, return -EINVAL for unsupported delay values - Respect DT delay properties for all RGMII modes - Add polling for self-clearing reset bit instead of fixed sleep - Remove unused packet generator macros (DAP8211R_PKGC5 and related) Artem Shimko (3): dt-bindings: vendor-prefixes: add Guangdong Dapu Telecom Co., Ltd. dt-bindings: net: add DAPU Telecom DAP8211R(I) PHY binding net: phy: add DAPU Telecom DAP8211R(I) Gigabit Ethernet PHY driver .../bindings/net/dptel,dap8211r.yaml | 62 +++++ .../devicetree/bindings/vendor-prefixes.yaml | 2 + drivers/net/phy/Kconfig | 9 + drivers/net/phy/Makefile | 1 + drivers/net/phy/dap8211r.c | 220 ++++++++++++++++++ 5 files changed, 294 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/dptel,dap8211r.yaml create mode 100644 drivers/net/phy/dap8211r.c -- 2.43.0