[GIT PULL] RISC-V Sophgo Devicetrees for v7.4

[Chen Wang]

Hey Arnd,

Please pull this dt changes for RISC-V/Sophgo.

Thanks,

Chen

The following changes since commit cee9395acd8043be0644b25c34bfa86623f2b935:

   Linux 7.3-rc1 (2026-08-30 13:34:40 -0700)

are available in the Git repository at:

   https://github.com/sophgo/linux.git tags/riscv-sophgo-dt-for-v7.4

for you to fetch changes up to 60e4cafd30908e7d8cdfdb4fa1a74dabed9f47b5:

   riscv: dts: sophgo: sg2002-milkv-duo256m: drop reserved memory node 
(2026-10-08 09:13:17 +0800)

----------------------------------------------------------------
RISC-V Devicetrees for v7.4

Sophgo:

For CV18xx serials:
- Add an overlay to enable MAC and MDIO multiplexer to
   reach the internal PHY so we can use Milk-V Duo 256M
   board with optional ethernet interface.
- Fix the name of the internal PHY node.
- Drop reserved memory node, and leave FSBL to decide
   this at runtime.

For SG2042:
- Limit SPI NOR to 12.5 MHz.

For SG2044:
- Enable both SPI NOR controllers.

Signed-off-by: Chen Wang <chen.wang at linux.dev>

----------------------------------------------------------------
Andrei Lalaev (2):
       riscv: dts: sophgo: cv1800b-milkv-duo: drop reserved memory node
       riscv: dts: sophgo: sg2002-milkv-duo256m: drop reserved memory node

Chen-Yu Yeh (2):
       riscv: dts: sophgo: add Milk-V Duo 256M ethernet support overlay
       riscv: dts: sophgo: cv180x: Fix internal ephy node name

Han Gao (1):
       riscv: dts: sophgo: Limit SG2042 SPI NOR to 12.5 MHz

Hangfan Li (1):
       riscv: dts: sophgo: Enable SPI NOR on SRD3-10

  arch/riscv/boot/dts/sophgo/Makefile                |  3 +++
  arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts   | 11 ----------
  arch/riscv/boot/dts/sophgo/cv180x.dtsi             |  2 +-
  .../boot/dts/sophgo/sg2002-milkv-duo256m-eth.dtso  | 17 +++++++++++++++
  .../riscv/boot/dts/sophgo/sg2002-milkv-duo256m.dts | 11 ----------
  arch/riscv/boot/dts/sophgo/sg2042-evb-v1.dts       |  4 ++--
  arch/riscv/boot/dts/sophgo/sg2042-evb-v2.dts       |  2 +-
  .../riscv/boot/dts/sophgo/sg2042-milkv-pioneer.dts |  4 ++--
  .../boot/dts/sophgo/sg2044-sophgo-srd3-10.dts      | 24 
++++++++++++++++++++++
  9 files changed, 50 insertions(+), 28 deletions(-)
  create mode 100644 
arch/riscv/boot/dts/sophgo/sg2002-milkv-duo256m-eth.dtso