Same issue on a Helios64 with Armbian 26.8.1 trixie minimal, kernel 6.18.43:
```
rockchip-pcie f8000000.pcie: PCIe link training gen1 timeout!
rockchip-pcie f8000000.pcie: probe with driver rockchip-pcie failed with error -110
```
No ata* ports, no disks. pcie_aspm=off didn't help.
Fixed by downgrading the kernel to 6.12.58. No overlay was needed:
```
apt install linux-image-current-rockchip64=25.11.2 linux-dtb-current-rockchip64=25.11.2 linux-headers-current-rockchip64=25.11.2
apt-mark hold linux-image-current-rockchip64 linux-dtb-current-rockchip64 linux-headers-current-rockchip64
reboot
```