[PATCH 0/5] riscv: dts: sifive: fu740: Fix compatible strings per IP versioning

[Max Hsu]

This series corrects the device tree compatible strings for the SiFive
FU740-C000 SoC to comply with the SiFive IP versioning scheme documented
in Documentation/devicetree/bindings/sifive/sifive-blocks-ip-versioning.txt.

According to the versioning guidelines, each SoC should use SoC-specific
compatible strings even when IP blocks are functionally identical across
different SoCs. This ensures proper hardware identification and allows
for future flexibility.

The series updates both the ethernet (MACB) and PLIC compatible strings
for the FU740, adds the corresponding device tree binding documentation,
and adds driver support for the FU740 ethernet controller.

Changes in this series:
- Patch 1: Add FU740 ethernet compatible string to the Cadence MACB
  binding documentation
- Patch 2: Add FU740 PLIC compatible string to the PLIC binding
  documentation
- Patch 3: Add FU740-specific configuration to the Cadence MACB driver;
  the FU740 ethernet controller is functionally identical to FU540, so
  it reuses the existing implementation
- Patch 4: Update the FU740 DTS to use the correct ethernet compatible
  string "sifive,fu740-c000-gem"
- Patch 5: Update the FU740 DTS to use the correct PLIC compatible
  string "sifive,fu740-c000-plic"

Tested on HiFive Unmatched (FU740-C000) hardware with network
functionality verified.

Signed-off-by: Max Hsu <max.hsu@xxxxxxxxxx>
---
Max Hsu (5):
      dt-bindings: net: macb: Add SiFive FU740-C000 support
      dt-bindings: interrupt-controller: Add SiFive FU740-C000 PLIC
      net: macb: Add support for SiFive FU740-C000
      riscv: dts: sifive: fu740: Use correct ethernet compatible string
      riscv: dts: sifive: fu740: Use correct PLIC compatible string

 .../interrupt-controller/sifive,plic-1.0.0.yaml         |  1 +
 Documentation/devicetree/bindings/net/cdns,macb.yaml    |  7 +++++--
 arch/riscv/boot/dts/sifive/fu740-c000.dtsi              |  4 ++--
 drivers/net/ethernet/cadence/macb_main.c                | 17 ++++++++++++++---
 4 files changed, 22 insertions(+), 7 deletions(-)
---
base-commit: 9702969978695d9a699a1f34771580cdbb153b33
change-id: 20260111-fu740-277eee3deae2

Best regards,
-- 
Max Hsu <max.hsu@xxxxxxxxxx>