[PATCH v2 0/3] Add upstream boards Milk-V Mars CM and Mars CM Lite

[E Shattow]

Milk-V Mars CM and Mars CM Lite SoM's were formerly supported v2024.07 to
v2025.01 and then absent since the OF_UPSTREAM transition of starfive
visionfive2 multi-board support. Upstream patches are in for Linux
v6.18-rc1 and available through devicetree-rebasing so let's re-introduce
support for these boards.

Sorting of OF_LIST is kept consistent with `LANG=C sort`, and callbacks in
SPL for dts selection are ordered the same. Logic for setting fdtfile env
variable corresponds with the sorting of OF_LIST and not the representative
EEPROM value comparisons.

This series depends on:
"dts: starfive: cherry-pick jh7110 updates from v6.18-rc1-dts"
https://lore.kernel.org/u-boot/20251015102253.48276-1-e@freeshell.de/

Changes since RFC v1:
- Drop patch 1/4 "riscv: dts: starfive: Add Milk-V Mars CM and Mars CM
Lite from upstream Linux for-next"
- Drop patch 3/4 "riscv: dts: Add placeholder files for pending upstream
Milk-V Mars CM and Mars CM Lite"
- Add patch for basic documentation stub. This should be expanded in
future with a refresh of all the starfive boards' user docs.

E Shattow (3):
  board: starfive: visionfive2: Add Milk-V Mars CM and Mars CM Lite
    selection by product_id
  configs: starfive: Add Milk-V Mars CM and Mars CM Lite to visionfive2
  board: starfive: Add initial Milk-V Mars CM and Mars CM Lite user
    documentation

 board/starfive/visionfive2/spl.c              |  8 +++++++
 .../visionfive2/starfive_visionfive2.c        |  6 +++++
 configs/starfive_visionfive2_defconfig        |  2 +-
 doc/board/starfive/index.rst                  |  2 ++
 doc/board/starfive/milkv_marscm_emmc.rst      | 24 +++++++++++++++++++
 doc/board/starfive/milkv_marscm_lite.rst      | 24 +++++++++++++++++++
 6 files changed, 65 insertions(+), 1 deletion(-)
 create mode 100644 doc/board/starfive/milkv_marscm_emmc.rst
 create mode 100644 doc/board/starfive/milkv_marscm_lite.rst

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