On 2025/1/13 12:25, Dragan Simic wrote: > Hello Junhao, > > On 2025-01-12 23:16, Junhao Xie wrote: >> On 2025/1/12 16:47, Dragan Simic wrote: >>> On 2025-01-12 08:33, Junhao Xie wrote: >>>> Add dts for Ariaboard Photonicat RK3568. >>>> >>>> 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. >>> >>> Unless the design of the board is proprietary, it would be good >>> to provide a link to the board schematic, for those interested >>> in verifying the board DT file. >>> >>> As a note, I already tried to find the board schematic with no >>> success, so the design might be proprietary. >> >> Yes, this board is proprietary. I asked the manufacturer and >> they don't provide schematics. >> >> But I found a partial schematic diagram of some of connectors >> on the board here >> https://dl.ariaboard.com/photonicat_rk3568/Photonicat%20rk3568%20EVB%20Board%20spec.pdf > > Yes, I also found that PDF file. It's somewhat similar to what > Raspberry Pi provides with its reduced schematics -- helpful to > an extent, but still leaving a lot to be desired. > > Out of curiosity, what did you actually use as a reference to create > the board dts file? Perhaps some downstream dts file provided by > the manufacturer or found in some operating system image? I wrote this device tree based on other rk3568 devices in mainline, and downstream board dts: https://github.com/photonicat/rockchip_rk3568_kernel/blob/novotech-5.10/arch/arm64/boot/dts/rockchip/rk3568-photonicat-base.dtsi Best regards, Junhao
