Re: [PATCH v2 0/2] board: sophgo: add support for Milk-V Duo 256M

Hi Hiago,

On Thu, Jul 23, 2026 at 11:44:33AM -0300, Hiago De Franco wrote:
> Milk-V Duo 256M is a small development board based on the Sophgo SG2002
> SoC.
> 
> U-Boot runs as the S-mode payload on top of the vendor FSBL and OpenSBI,
> packaged together into a FIP image on the SD card.
> 
> The vendor FIP tool prepends a 32-byte loader header to u-boot.bin and
> loads the result at 0x80200000, so TEXT_BASE is set to 0x80200020 to
> match the address the U-Boot code actually runs.
> 
> The following peripherals are supported:
> - ns16550 serial console (UART0)
> - SD/MMC
> - Ethernet with the SoC internal PHY
> 
> This patch was tested on Milk-V Duo 256MB using an SD card and the Duo
> USB & Ethernet IOB (base board) [0].
> 
> This series uses the CV1800B SYS_CPU target since SG2002 shares common
> IPs with CV1800B. Other SG2002 as LicheeRV Nano does the same.
> 
> Note: Linux device tree is not yet merged [1], therefore I am adding a
> device tree here and it can be later changed to use the kernel upstream
> one.
> 
> [0] https://milkv.io/docs/duo/io-board/usb-ethernet-iob
> [1] https://lore.kernel.org/lkml/[email protected]/
> 
> Link: https://milkv.io/docs/duo/getting-started/duo256m
> Signed-off-by: Hiago De Franco <[email protected]>
> ---
> Changes in v2:
> - Makefile: changed to use 'milkv_duo/board.c' instead of
>   'milkv_duo_256m/board.c', since they share the exact same code.
> - board.c: deleted, because of the above.
> - doc: updated to add Ethernet support.
> - Link to v1: https://lore.kernel.org/r/[email protected]
> 
> ---
> Hiago De Franco (2):
>       board: sophgo: move ethernet driver to common directory
>       board: sophgo: add support for Milk-V Duo 256M
> 
>  arch/riscv/Kconfig                             |  4 ++
>  arch/riscv/dts/Makefile                        |  1 +
>  arch/riscv/dts/sg2002-milkv-duo256m.dts        | 46 ++++++++++++++
>  board/sophgo/{milkv_duo => common}/ethernet.c  |  0
>  board/sophgo/{milkv_duo => common}/ethernet.h  |  0
>  board/sophgo/milkv_duo/MAINTAINERS             |  1 +
>  board/sophgo/milkv_duo/Makefile                |  2 +-
>  board/sophgo/milkv_duo/board.c                 |  2 +-
>  board/sophgo/milkv_duo_256m/Kconfig            | 30 +++++++++
>  board/sophgo/milkv_duo_256m/MAINTAINERS        |  5 ++
>  board/sophgo/milkv_duo_256m/Makefile           |  6 ++
>  board/sophgo/milkv_duo_256m/milkv_duo_256m.env |  8 +++
>  configs/milkv_duo_256m_defconfig               | 42 +++++++++++++
>  doc/board/sophgo/index.rst                     |  1 +
>  doc/board/sophgo/milkv_duo_256m.rst            | 84 ++++++++++++++++++++++++++
>  include/configs/milkv_duo_256m.h               | 12 ++++
>  16 files changed, 242 insertions(+), 2 deletions(-)
> ---
> base-commit: ece349ade2973e220f524ce59e59711cc919263f
> change-id: 20260710-add-milkv-duo256m-1662c5cafb35
> 
> Best regards,

Applied to u-boot-riscv/main, thanks.

Best regards,
Leo