Backport RTL8125D (rev C, XID 688) support

[sairon]

Apply mainline patch adding support for NIC present e.g. on ASUS NUC 14 Essential.

Fixes #3880

Summary by CodeRabbit

• New Features
  • Added support for the RTL8125D network chip, enhancing compatibility with newer hardware models.
• Chores
  • Updated a core dependency to the latest stable version for improved performance and maintainability.

[sairon]

Requires: home-assistant/buildroot#83

[coderabbitai]

Caution

Review failed

The pull request is closed.

📝 Walkthrough

Walkthrough

The changes update the subproject commit for buildroot and introduce modifications to the r8169 driver through a patch. The patch adds support for the RTL8125D network chip by incorporating a new firmware definition, a new enumeration value, and functions to initialize the hardware and configure the PHY. Control flow adjustments in the driver ensure that RTL8125D is recognized and handled appropriately during device initialization.

Changes

File(s)	Change Summary
buildroot	Updated subproject commit reference from 4cd211162de8b74461c2684bd89b89047f0ecb61 to 5379c358bf5157bdab42dd187b9859e2d9b378c7.
buildroot-external/patches/linux/0002-r8169-add-support-for-RTL8125D.patch, drivers/net/ethernet/realtek/r8169.h, drivers/net/ethernet/realtek/r8169_main.c, drivers/net/ethernet/realtek/r8169_phy_config.c	Added support for the RTL8125D chip in the r8169 driver. Introduced a new enumeration value (RTL_GIGA_MAC_VER_64), firmware definition (FIRMWARE_8125D_1), and functions (rtl_hw_start_8125d and rtl8125d_hw_phy_config), with corresponding control flow modifications.

Sequence Diagram(s)

sequenceDiagram
    participant OS as Operating System
    participant Driver as r8169 Driver
    participant HW as RTL8125D Hardware

    OS->>Driver: Initialize network interface
    Driver->>Driver: Identify chip version
    alt Chip is RTL8125D
        Driver->>Driver: Execute rtl_hw_start_8125d()
        Driver->>Driver: Execute rtl8125d_hw_phy_config()
    else Other Chip
        Driver->>Driver: Standard initialization
    end
    Driver->>OS: Report network status

Loading

Assessment against linked issues

Objective	Addressed	Explanation
Support for Realtek RTL8125 LAN controller (#3880)	✅

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📜 Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 856ed0d and 557eeaf.

📒 Files selected for processing (1)

• buildroot (1 hunks)

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