Add dts for Ariaboard Photonicat RK3568.
Partially based on downstream board dts. [1]
Working IO:
Debug UART
SDIO QCA9377 WiFi and Bluetooth
M.2 E-Key PCIe WiFi and Bluetooth
M.2 B-Key USB Modem WWAN
Ethernet WAN Port
MicroSD Card slot
eMMC
HDMI Output
Mali GPU
USB Type-A
Not working IO:
Ethernet LAN Port (Lack of SGMII support)
Power management MCU on UART4 (Driver pending)
Not working IO in MCU:
Battery voltage sensor
Board temperature sensor
Hardware Power-off
Hardware Watchdog
Network status LED
Real-time clock
USB Charger voltage sensor
About onboard power management MCU:
A heartbeat must be sent to the MCU within 60 seconds,
otherwise the MCU will restart the system.
When powering off, a shutdown command needs to be sent to the MCU.
When the power button is long pressed, the MCU will send a shutdown
command to the system. If system does not shutdown within 60 seconds,
the power will be turned off directly.
MCU only provides voltage for charger and battery.
Manufacturer removed RK8xx PMIC.
[1] https://github.com/photonicat/rockchip_rk3568_kernel/blob/novotech-5.10/arch/arm64/boot/dts/rockchip/rk3568-photonicat-base.dtsi
Signed-off-by: Junhao Xie <bigfoot@classfun.cn>
Link: https://lore.kernel.org/r/20250114001411.1848529-4-bigfoot@classfun.cn
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
