[PATCH v2 1/2] riscv: dts: sophgo: make sg2002-milkv-duo256m-eth overlay generic

[Hiago De Franco <hfranco@baylibre.com>]

The overlay only enables gmac0 and the MDIO mux, which are common to the
CV180x and SG200x SoCs, so it can be reused by other boards such as the
Milk-V Duo (CV1800B).

Rename it to cv18xx-eth.dtso.

Signed-off-by: Hiago De Franco <hfranco@baylibre.com>
---
 arch/riscv/boot/dts/sophgo/Makefile                                   | 4 ++--
 .../dts/sophgo/{sg2002-milkv-duo256m-eth.dtso => cv18xx-eth.dtso}     | 3 ++-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/arch/riscv/boot/dts/sophgo/Makefile b/arch/riscv/boot/dts/sophgo/Makefile
index 49639cb0888b..440acd0aa55a 100644
--- a/arch/riscv/boot/dts/sophgo/Makefile
+++ b/arch/riscv/boot/dts/sophgo/Makefile
@@ -1,12 +1,12 @@
 # SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_SOPHGO) += cv1800b-milkv-duo.dtb
 dtb-$(CONFIG_ARCH_SOPHGO) += cv1812h-huashan-pi.dtb
+dtb-$(CONFIG_ARCH_SOPHGO) += cv18xx-eth.dtbo
 dtb-$(CONFIG_ARCH_SOPHGO) += sg2000-milkv-duo-s.dtb
 dtb-$(CONFIG_ARCH_SOPHGO) += sg2002-licheerv-nano-b.dtb
 dtb-$(CONFIG_ARCH_SOPHGO) += sg2002-milkv-duo256m.dtb
-sg2002-milkv-duo256m-eth-dtbs := sg2002-milkv-duo256m.dtb sg2002-milkv-duo256m-eth.dtbo
+sg2002-milkv-duo256m-eth-dtbs := sg2002-milkv-duo256m.dtb cv18xx-eth.dtbo
 dtb-$(CONFIG_ARCH_SOPHGO) += sg2002-milkv-duo256m-eth.dtb
-dtb-$(CONFIG_ARCH_SOPHGO) += sg2002-milkv-duo256m-eth.dtbo
 dtb-$(CONFIG_ARCH_SOPHGO) += sg2042-milkv-pioneer.dtb
 dtb-$(CONFIG_ARCH_SOPHGO) += sg2042-evb-v1.dtb
 dtb-$(CONFIG_ARCH_SOPHGO) += sg2042-evb-v2.dtb
diff --git a/arch/riscv/boot/dts/sophgo/sg2002-milkv-duo256m-eth.dtso b/arch/riscv/boot/dts/sophgo/cv18xx-eth.dtso
similarity index 66%
rename from arch/riscv/boot/dts/sophgo/sg2002-milkv-duo256m-eth.dtso
rename to arch/riscv/boot/dts/sophgo/cv18xx-eth.dtso
index cc93746d932c..cdb8db063977 100644
--- a/arch/riscv/boot/dts/sophgo/sg2002-milkv-duo256m-eth.dtso
+++ b/arch/riscv/boot/dts/sophgo/cv18xx-eth.dtso
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
 /*
- * Enable ethernet on Milk-V Duo 256M with the USB & Ethernet IO board.
+ * Enable ethernet on boards that use the internal ethernet PHY of the
+ * CV180x and SG200x SoCs.
  *
  * Copyright (c) 2026, Chen-Yu Yeh <chenyou910331@gmail.com>
  */

-- 
2.53.0