[PATCH net-next v5 0/3] riscv: spacemit: Add ethernet support for K3

[Emil Renner Berthing]

Quoting Inochi Amaoto (2026-02-27 08:57:14)
> Add initial support for ethernet controller of the Spacemit K3 SoC.
> This ethernet controller is almost a standard Synopsys DesignWare
> MAC (version 5.40a). This controller require a syscon device to
> configure some basic features, like interface type and internal delay.

I don't know how we can accept this when it can't be tested since it still
doesn't come with the device tree nodes. If you don't want it to be part of the
series, just share a tree where this code is working. There are plenty of free
public git hosting sites available.

/Emil

>
> Change from v4:
> - https://lore.kernel.org/netdev/20260130022705.1059214-1-inochiama@gmail.com
> patch 1:
> 1 Apply Rob's tag.
> 2 Adjust clock description according to Russell's suggestion.
> patch 3:
> 1. Add set_phy_intf_sel() and get_interfaces() hook, suggested by Russell.
>
> Change from v3:
> - https://lore.kernel.org/netdev/20260128072931.875041-1-inochiama@gmail.com
> patch 1:
> 1. fix the uncorrect compatible string postion
> patch 3:
> 1. add "CTRL_" prefix to all ctrl register definition
> 2. only use delay config 0 to calculate delay code.
> 3. fix typo in the comment
>
> Change from v2:
> - https://lore.kernel.org/netdev/20260121071315.940130-1-inochiama@gmail.com
> patch 1:
> 1. remove not needed compatible for select
> 2. drop empty line in "spacemit,apmu" properties
> 3. add spacemit,apmu properties to required.
> patch 3:
> 1. remove misused phy_fix_phy_mode_for_mac_delays.
> 2. use local tx clock instead of the clk_tx_i in the dwmac.
>
> Change from v1:
> - https://lore.kernel.org/netdev/20260120043609.910302-1-inochiama@gmail.com
> patch 1:
> 1. remove phy clock
> patch 3:
> 1. improve comment and include something special about Spacmit K3 dwmac
> 2. reorder the included file
> 3. fix wrong delay macro used in spacemit_dwmac_set_delay.
> 4. add check for maximum supported delay.
> 5. use DIV_ROUND_CLOSEST to calculate best delay configuration.
> 6. use assign for the ctrl register initial value.
> 7. fix input when calling of_property_read_u32().
>
> Inochi Amaoto (3):
>   dt-bindings: net: Add support for Spacemit K3 dwmac
>   net: stmmac: platform: Add snps,dwmac-5.40a IP compatible string
>   net: stmmac: Add glue layer for Spacemit K3 SoC
>
>  .../devicetree/bindings/net/snps,dwmac.yaml   |   2 +
>  .../bindings/net/spacemit,k3-dwmac.yaml       | 103 ++++++++
>  drivers/net/ethernet/stmicro/stmmac/Kconfig   |  12 +
>  drivers/net/ethernet/stmicro/stmmac/Makefile  |   1 +
>  .../ethernet/stmicro/stmmac/dwmac-spacemit.c  | 226 ++++++++++++++++++
>  .../ethernet/stmicro/stmmac/stmmac_platform.c |   1 +
>  6 files changed, 345 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/net/spacemit,k3-dwmac.yaml
>  create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwmac-spacemit.c
>
> --
> 2.53.0
>
>
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