This series is based on 6.12-rc1 and depends on this pinctrl series: 20240930-th1520-pinctrl-v3-0-32cea2bdbecb@xxxxxxxxxxxxxxx I have a branch with this series and the dependencies: https://github.com/pdp7/linux/tree/b4/th1520-dwmac Regarding clocks, the gmac nodes in th1520.dtsi have the "stmmac_clk" clock set to CLK_GMAC_AXI in the AP_SUBSYS clock controller. This corresponds to the enable bit for the GMAC axi4_clk gate which is handled by the clk-th1520-ap driver. thead_dwmac_fix_speed() does not modify anything in the AP_SUBSYS clock controller. It only writes to GMAC APB registers. It seems unnecessary to create a new clock driver just for the GMAC APB registers. Refer to section 1.6.2 in the TH1520 Peripheral Interface User Manual [1]. I've removed the properties that I added in v2: thead,rx-internal-delay and thead,tx-internal-delay. The units for the delay field in the rgmii delay control registers are not documented. Andrew Lunn suggested I just hard code the delay field to 0 since I don't know the units and the boards work with the hardware reset value of 0. [1] https://git.beagleboard.org/beaglev-ahead/beaglev-ahead/-/tree/main/docs Changes in v3: - Rebase on v6.12-rc1 - Remove thead,rx-internal-delay and thead,tx-internal-delay properties - Remove unneeded call to thead_dwmac_fix_speed() during probe - Fix filename for the yaml file in MAINTAINERS patch Changes in v2: - Drop the first patch as it is no longer needed due to upstream commit d01e0e98de31 ("dt-bindings: net: dwmac: Validate PBL for all IP-cores") - Rename compatible from "thead,th1520-dwmac" to "thead,th1520-gmac" - Add thead,rx-internal-delay and thead,tx-internal-delay properties and check that it does not exceed the maximum value - Convert from stmmac_dvr_probe() to devm_stmmac_pltfr_probe() and delete the .remove_new hook as it is no longer needed - Handle return value of regmap_write() in case it fails - Add phy reset delay properties to the BeagleV Ahead device tree - Link: https://lore.kernel.org/linux-riscv/20240926-th1520-dwmac-v2-0-f34f28ad1dc9@xxxxxxxxxxxxxxx/ Changes in v1: - remove thead,gmacapb that references syscon for APB registers - add a second memory region to gmac nodes for the APB registers - Link: https://lore.kernel.org/all/20240713-thead-dwmac-v1-0-81f04480cd31@xxxxxxxxxxxxxxx/ --- Emil Renner Berthing (1): riscv: dts: thead: Add TH1520 ethernet nodes Jisheng Zhang (2): dt-bindings: net: Add T-HEAD dwmac support net: stmmac: Add glue layer for T-HEAD TH1520 SoC .../devicetree/bindings/net/snps,dwmac.yaml | 1 + .../devicetree/bindings/net/thead,th1520-gmac.yaml | 97 +++++++ MAINTAINERS | 2 + arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts | 91 +++++++ .../boot/dts/thead/th1520-lichee-module-4a.dtsi | 129 +++++++++ arch/riscv/boot/dts/thead/th1520.dtsi | 50 ++++ drivers/net/ethernet/stmicro/stmmac/Kconfig | 11 + drivers/net/ethernet/stmicro/stmmac/Makefile | 1 + drivers/net/ethernet/stmicro/stmmac/dwmac-thead.c | 291 +++++++++++++++++++++ 9 files changed, 673 insertions(+) --- base-commit: 6b16e599500bd0002164d9edcb8bf7652d9888fa change-id: 20240930-th1520-dwmac-34f5dd0cccf8 Best regards, -- Drew Fustini <dfustini@xxxxxxxxxxxxxxx>
