[PATCH v2 0/4] riscv: sophgo: Add ethernet support for SG2044

[Inochi Amaoto]

The ethernet controller of SG2044 is Synopsys DesignWare IP with
custom clock. Add glue layer for it.

Since v2, these patch depends on that following patch that provides
helper function to compute rgmii clock:
https://lore.kernel.org/netdev/20241013-upstream_s32cc_gmac-v3-4-d84b5a67b930@xxxxxxxxxxx/

Changed from v1:
1. patch 2: remove sophgo,syscon as this mac delay is resolved.
2. patch 2: apply all the properties unconditionally.
3. patch 4: remove sophgo,syscon code as this mac delay is resolved.
4. patch 4: use the helper function to compute rgmii clock.
5. patch 4: use remove instead of remove_new for the platform driver.

Inochi Amaoto (4):
  dt-bindings: net: snps,dwmac: Add dwmac-5.30a version
  dt-bindings: net: Add support for Sophgo SG2044 dwmac
  net: stmmac: platform: Add snps,dwmac-5.30a IP compatible string
  net: stmmac: Add glue layer for Sophgo SG2044 SoC

 .../devicetree/bindings/net/snps,dwmac.yaml   |   4 +
 .../bindings/net/sophgo,sg2044-dwmac.yaml     | 124 ++++++++++++++++++
 drivers/net/ethernet/stmicro/stmmac/Kconfig   |  11 ++
 drivers/net/ethernet/stmicro/stmmac/Makefile  |   1 +
 .../ethernet/stmicro/stmmac/dwmac-sophgo.c    | 109 +++++++++++++++
 .../ethernet/stmicro/stmmac/stmmac_platform.c |   3 +-
 6 files changed, 251 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/devicetree/bindings/net/sophgo,sg2044-dwmac.yaml
 create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c

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2.47.0