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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland Cc: netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, Andre Przywara Subject: [PATCH net-next v3 00/10] net: stmmac: Add support for Allwinner A523 GMAC200 Date: Sat, 6 Sep 2025 12:13:23 +0800 Message-Id: <20250906041333.642483-1-wens@kernel.org> X-Mailer: git-send-email 2.39.5 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Chen-Yu Tsai Hi everyone, This is v3 of my Allwinner A523 GMAC200 support series. Changes since v2: - DT binding - Added "select" to avoid matching against all dwmac entries - driver - Include "ps" unit in "... must be multiple of ..." error message - Use FIELD_FIT to check if delay value is in range and FIELD_MAX to get the maximum value - Reword error message for delay value exceeding maximum - Drop MASK_TO_VAL - Link to v2: https://lore.kernel.org/all/20250813145540.2577789-1-wens@kernel.org/ Changes since v1: - Dropped RFT tag - Switched to generic (tx|rx)-internal-delay-ps - dwmac-sun55i driver bits - Changed dev_err() + return to dev_err_probe() - Added check of return value from syscon regmap write - Changed driver name to match file name - sram driver bits - Fixed check on return value - Expanded commit message - dtsi - Fixed typo in tx-queues-config - cubie a5e - Add PHY regulator delay - Link to v1: https://lore.kernel.org/all/20250701165756.258356-1-wens@kernel.org/ This series adds support for the second Ethernet controller found on the Allwinner A523 SoC family. This controller, dubbed GMAC200, is a DWMAC4 core with an integration layer around it. The integration layer is similar to older Allwinner generations, but with an extra memory bus gate and separate power domain. Patch 1 adds a new compatible string combo to the existing Allwinner EMAC binding. Patch 2 adds a new driver for this core and integration combo. Patch 3 extends the sunxi SRAM driver to allow access to the clock delay controls for the second Ethernet controller. Patch 4 registers the special regmap for the clock delay controls as a syscon. This allows the new network driver to use the syscon interface, instead of the following dance which the existing dwmac-sun8i driver does: of_parse_phandle(); of_find_device_by_node(); dev_get_regmap(); With this change in place we can also drop the above from the dwmac-sun8i driver. Patch 5 adds a device node and pinmux settings for the GMAC200. Patches 6 and 8 add missing Ethernet PHY reset settings for the already enabled controller. Patches 7, 9, and 10 enable the GMAC200 on three boards. I only have the Orangepi 4A, so I am asking for people to help test the two other boards. The RX/TX clock delay settings were taken from their respective BSPs, though those numbers don't always work, as is was the case for the Orangepi 4A. Please have a look and help test on the Avaota A1. I don't expect any issues there though, since the PHY is always on, unlike on the Cubie A5E. Patches 1 and 2 should go through net-next, and I will take all the other patches through the sunxi tree. Thanks ChenYu Chen-Yu Tsai (10): dt-bindings: net: sun8i-emac: Add A523 GMAC200 compatible net: stmmac: Add support for Allwinner A523 GMAC200 soc: sunxi: sram: add entry for a523 soc: sunxi: sram: register regmap as syscon arm64: dts: allwinner: a523: Add GMAC200 ethernet controller arm64: dts: allwinner: a527: cubie-a5e: Add ethernet PHY reset setting arm64: dts: allwinner: a527: cubie-a5e: Enable second Ethernet port arm64: dts: allwinner: t527: avaota-a1: Add ethernet PHY reset setting arm64: dts: allwinner: t527: avaota-a1: enable second Ethernet port arm64: dts: allwinner: t527: orangepi-4a: Enable Ethernet port .../net/allwinner,sun8i-a83t-emac.yaml | 96 ++++++++++- .../arm64/boot/dts/allwinner/sun55i-a523.dtsi | 55 ++++++ .../dts/allwinner/sun55i-a527-cubie-a5e.dts | 31 +++- .../dts/allwinner/sun55i-t527-avaota-a1.dts | 29 +++- .../dts/allwinner/sun55i-t527-orangepi-4a.dts | 23 +++ drivers/net/ethernet/stmicro/stmmac/Kconfig | 12 ++ drivers/net/ethernet/stmicro/stmmac/Makefile | 1 + .../ethernet/stmicro/stmmac/dwmac-sun55i.c | 159 ++++++++++++++++++ drivers/soc/sunxi/sunxi_sram.c | 14 ++ 9 files changed, 414 insertions(+), 6 deletions(-) create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwmac-sun55i.c -- 2.39.5