- Add mainline device tree for YY3588 board
- Enable all peripherals: USB 3.0, Ethernet, PCIe, HDMI
- Add RK8602 PMIC regulators for CPU/NPU power
- Enable I2C buses for PMIC and RTC
- Fix pinctrl conflicts (I2C1 M2, disable SFC for UART7)
- Configure USB-C and USB 3.0 host ports
- Add HDMI0 output with HDPTX PHY
- Enable thermal management with PWM fan
- Add SD card and eMMC storage support
- Configure all UARTs, I2S audio, and SPI buses
- ES8323 audio codec currently disabled for further debugging
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