From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from cstnet.cn (smtp81.cstnet.cn [159.226.251.81]) (using TLSv1.2 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A12092D6E4F; Tue, 12 Aug 2025 02:03:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=159.226.251.81 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754964211; cv=none; b=TIaiHgQ8XPhXBEHJi4/EdImpVfexI5DjewSciRduRvB1i3IryCbZDLHMTTLufjCFZafpzI3fG9fcWv6TPINKOqEj31ADB3usZ5U7nZvu7gyGDiJRB96MYgBGIlO5jQ/gmgkpaKwReuXRaUHLv559/i93Vz0nJx+j5OOyiVouQSA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754964211; c=relaxed/simple; bh=UgIV8Iw+C6RHzQ/Qww8vam7v+73LkHgRGgp/J/479BE=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=S1oIV4Paz3h7ui+WDOkSzQoLbiMiZnThMOOODJQb6fkpSyjKAYxNo1H6YILG2AHOzYU9ni5jM0svygp0kCOPvhVVR1s71j5CPvsENRYQKIRFv6yCxbsq7z00H5uCsVxP+AXFcRYckHK+dYCwXoHvvwOfb/jDYvPjzpyb6YPX19A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iscas.ac.cn; spf=pass smtp.mailfrom=iscas.ac.cn; arc=none smtp.client-ip=159.226.251.81 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iscas.ac.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=iscas.ac.cn Received: from [127.0.0.2] (unknown [114.241.87.235]) by APP-03 (Coremail) with SMTP id rQCowAB3DH7LoJpoRIQaCw--.31870S2; Tue, 12 Aug 2025 10:02:52 +0800 (CST) From: Vivian Wang Subject: [PATCH net-next v5 0/5] Add Ethernet MAC support for SpacemiT K1 Date: Tue, 12 Aug 2025 10:02:16 +0800 Message-Id: <20250812-net-k1-emac-v5-0-dd17c4905f49@iscas.ac.cn> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAKigmmgC/2XOTU7DMBAF4KtEXuNo7PgvXXEPxMJMxtRCcYodo qIqd8ekSDTtcjTvezMXVihHKuzQXFimJZY4pTrop4bh0ad34nGoM5MgNRgwPNHMPwSn0SPvSDi hwZE3ilVxyhTieWt7Yb/BROeZvV43mT6/av38t37zhThO4xjnQ7OYVlieUWzhYyzzlL+3nxaxp a/nRbc7vwgOHNGEnrQAY+xzLOhL67HFtDUt8la7vZZV9yroAFZK692j7v61BbnXXdXOyQG1VqB C96jVrb77XFVtnBmgR4Xh/va6rj/F+9TNmQEAAA== X-Change-ID: 20250606-net-k1-emac-3e181508ea64 To: Andrew Lunn , Jakub Kicinski , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Yixun Lan , Vivian Wang , "David S. Miller" , Eric Dumazet , Paolo Abeni , Philipp Zabel , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti Cc: Vivian Wang , Vadim Fedorenko , Junhui Liu , Simon Horman , Maxime Chevallier , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, spacemit@lists.linux.dev, linux-kernel@vger.kernel.org, Conor Dooley X-Mailer: b4 0.14.2 X-CM-TRANSID:rQCowAB3DH7LoJpoRIQaCw--.31870S2 X-Coremail-Antispam: 1UD129KBjvJXoWxur4fKrWkGryxKryxWry7trb_yoW5tFWxpF W8ZFZI9397JrWIgrs7uw47uF93Xan5t343WF15t395Xa1DAFyUAr9akw43Cr1UZrWrJ342 y3WUZrn7CFyDA3DanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUU9Y14x267AKxVW5JVWrJwAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2ocxC64kIII0Yj41l84x0c7CEw4AK67xGY2AK02 1l84ACjcxK6xIIjxv20xvE14v26ryj6F1UM28EF7xvwVC0I7IYx2IY6xkF7I0E14v26F4j 6r4UJwA2z4x0Y4vEx4A2jsIE14v26F4UJVW0owA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_Gc CE3s1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E 2Ix0cI8IcVAFwI0_Jr0_Jr4lYx0Ex4A2jsIE14v26r1j6r4UMcvjeVCFs4IE7xkEbVWUJV W8JwACjcxG0xvY0x0EwIxGrwACjI8F5VA0II8E6IAqYI8I648v4I1lFIxGxcIEc7CjxVA2 Y2ka0xkIwI1lc7CjxVAaw2AFwI0_GFv_Wryl42xK82IYc2Ij64vIr41l4I8I3I0E4IkC6x 0Yz7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8GjcxK67AKxVWUGVWUWwC2 zVAF1VAY17CE14v26r4a6rW5MIIYrxkI7VAKI48JMIIF0xvE2Ix0cI8IcVAFwI0_Jr0_JF 4lIxAIcVC0I7IYx2IY6xkF7I0E14v26r4j6F4UMIIF0xvE42xK8VAvwI8IcIk0rVWUJVWU CwCI42IY6I8E87Iv67AKxVWUJVW8JwCI42IY6I8E87Iv6xkF7I0E14v26r4j6r4UJbIYCT nIWIevJa73UjIFyTuYvjTRNJ5oDUUUU X-CM-SenderInfo: pzdqw2pxlnt03j6l2u1dvotugofq/ SpacemiT K1 has two gigabit Ethernet MACs with RGMII and RMII support. Add devicetree bindings, driver, and DTS for it. Tested primarily on BananaPi BPI-F3. Basic TX/RX functionality also tested on Milk-V Jupiter. I would like to note that even though some bit field names superficially resemble that of DesignWare MAC, all other differences point to it in fact being a custom design. Based on SpacemiT drivers [1]. These patches are also available at: https://github.com/dramforever/linux/tree/k1/ethernet/v5 [1]: https://github.com/spacemit-com/linux-k1x --- Changes in v5: - Rebased on v6.17-rc1, add back DTS now that they apply cleanly - Use standard statistics interface, handle 32-bit statistics overflow - Minor changes: - Fix clock resource handling in emac_resume - Ratelimit the message in emac_rx_frame_status - Add ndo_validate_addr = eth_validate_addr - Remove unnecessary parens in emac_set_mac_addr - Change some functions that never fail to return void instead of int - Minor rewording - Link to v4: https://lore.kernel.org/r/20250703-net-k1-emac-v4-0-686d09c4cfa8@iscas.ac.cn Changes in v4: - Resource handling on probe and remove: timer_delete_sync and of_phy_deregister_fixed_link - Drop DTS changes and dependencies (will send through SpacemiT tree) - Minor changes: - Remove redundant phy_stop() and setting of ndev->phydev - Fix error checking for emac_open in emac_resume - Fix one missed dev_err -> dev_err_probe - Fix type of emac_start_xmit - Fix one missed reverse xmas tree formatting - Rename some functions for consistency between emac_* and ndo_* - Link to v3: https://lore.kernel.org/r/20250702-net-k1-emac-v3-0-882dc55404f3@iscas.ac.cn Changes in v3: - Refactored and simplified emac_tx_mem_map - Addressed other minor v2 review comments - Removed what was patch 3 in v2, depend on DMA buses instead - DT nodes in alphabetical order where appropriate - Link to v2: https://lore.kernel.org/r/20250618-net-k1-emac-v2-0-94f5f07227a8@iscas.ac.cn Changes in v2: - dts: Put eth0 and eth1 nodes under a bus with dma-ranges - dts: Added Milk-V Jupiter - Fix typo in emac_init_hw() that broke the driver (Oops!) - Reformatted line lengths to under 80 - Addressed other v1 review comments - Link to v1: https://lore.kernel.org/r/20250613-net-k1-emac-v1-0-cc6f9e510667@iscas.ac.cn --- Vivian Wang (5): dt-bindings: net: Add support for SpacemiT K1 net: spacemit: Add K1 Ethernet MAC riscv: dts: spacemit: Add Ethernet support for K1 riscv: dts: spacemit: Add Ethernet support for BPI-F3 riscv: dts: spacemit: Add Ethernet support for Jupiter .../devicetree/bindings/net/spacemit,k1-emac.yaml | 81 + arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts | 46 + arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts | 46 + arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi | 48 + arch/riscv/boot/dts/spacemit/k1.dtsi | 22 + drivers/net/ethernet/Kconfig | 1 + drivers/net/ethernet/Makefile | 1 + drivers/net/ethernet/spacemit/Kconfig | 29 + drivers/net/ethernet/spacemit/Makefile | 6 + drivers/net/ethernet/spacemit/k1_emac.c | 2051 ++++++++++++++++++++ drivers/net/ethernet/spacemit/k1_emac.h | 422 ++++ 11 files changed, 2753 insertions(+) --- base-commit: 062b3e4a1f880f104a8d4b90b767788786aa7b78 change-id: 20250606-net-k1-emac-3e181508ea64 Best regards, -- Vivian "dramforever" Wang