[PATCH] board: rockchip: Add for 9Tripod X3568 v4

Thu Jun 25 12:54:58 CEST 2026

On June 25, 2026 6:30:46 PM GMT+08:00, Quentin Schulz <quentin.schulz at cherry.de> wrote:
>Hi Coia,
>
>On 5/27/26 1:29 PM, Coia Prant wrote:
>> [You don't often get email from coiaprant at gmail.com. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ]
>> 
>> The 9Tripod X3568 v4 is an RK3568-based SBC, just like the RK3568-EVB.
>> It always uses soldered connections between the X3568CV2/X3568CV3/X3568CV4 core board
>> and the X3568bv4 I/O board.
>> 
>> The differences between the core boards
>> - PCB size, layout
>> - CPU (RKK3568B2/RK3568J)
>> - Memory type (DDR4/LPDDR4/LPDDR4X) and size
>> - eMMC size
>> - DSI/EDP resistor values
>> Although the components vary, they maintain full compatibility.
>> 
>> The X3568 board has multiple hardware revisions, and we currently support v4 (I/O board).
>> 
>> Specification:
>> - SoC: RockChip RK3568 ARM64 (4 cores)
>> - eMMC: 16-128 GB
>> - RAM: 2-16 GB
>> - Power: DC 12V 2A
>> - Ethernet: 2x YT8521SC RGMII (10/100/1000 Mbps)
>> - Wireless radio: 802.11b/g/n/ac/ax dual-band
>> - LED:
>>    Power: AlwaysOn
>>    User: GPIO
>> - Button:
>>    VOL+: SARADC/0 <35k µV>
>>    VOL-: SARADC/0 <450k µV>
>>    Power/Reset: PMIC RK809
>> - CAN
>>    CAN/1: 4-pin (PH 2.0)
>> - PWM
>>    PWM/4: Backlight DSI/0 DSI/1
>>    PWM/7: IR Receiver [may not install]
>> - UART:
>>    UART/2: Debug TTL - 1500000 8N1 (1.25mm)
>>    UART/3: TTL (PH 2.0)
>>    UART/4: TTL (PH 2.0)
>>    UART/8: AP6275S Bluetooth
>>    UART/9: TTL (PH 2.0)
>> - I2C:
>>    I2C/0: PMIC RK809
>>    I2C/1: Touchscreen DSI/0 DSI/1
>>    I2C/4: Camera
>>    I2C/5: RTC at 51 PCF8563
>> - I2S:
>>    I2S/0: miniHDMI Sound
>>    I2S/1: RK809 Audio Codec
>>    I2S/3: AP6275S Bluetooth Sound
>> - SDMMC:
>>    SDMMC/0: microSD (TF) slot
>>    SDMMC/2: AP6275S SDIO WiFi card
>> - Camera: 1x CSI
>> - Video: miniHDMI / DSI0 (MIPI/LVDS) / DSI1 (MIPI/EDP)
>> - Audio: miniHDMI / MIC on-board / Speaker / SPDIF / 3.5mm Headphones / AP6275S Bluetooth
>> - USB:
>>    USB 2.0 HOST x2
>>    USB 2.0 HOST x3 (4-pin)
>>    USB 2.0 OTG x1 (shared with USB 3.0 OTG/HOST) [slot may not install]
>>    USB 3.0 HOST x1
>>    USB 3.0 OTG/HOST x1
>> - SATA: 1x SATA 3.0 with Power/4-pin [slot may not install]
>> - PCIe: 1x PCIe 3.0 x2 (x4 connecter) [power/clock/slot may not install]
>> 
>> Link:
>> - https://appletsapi.52solution.com/media/X3568V4%E5%BC%80%E5%8F%91%E6%9D%BF%E7%A1%AC%E4%BB%B6%E6%89%8B%E5%86%8C.pdf
>> - https://blog.gov.cooking/archives/research-ninetripod-x3568-v4-and-flash.html
>> 
>> Signed-off-by: Coia Prant <coiaprant at gmail.com>
>> ---
>>   .../dts/rk3568-9tripod-x3568-v4-u-boot.dtsi   |  3 +
>>   board/rockchip/evb_rk3568/MAINTAINERS         |  7 ++
>>   configs/9tripod-x3568-v4-rk3568_defconfig     | 80 +++++++++++++++++++
>>   doc/board/rockchip/rockchip.rst               |  1 +
>>   4 files changed, 91 insertions(+)
>>   create mode 100644 arch/arm/dts/rk3568-9tripod-x3568-v4-u-boot.dtsi
>>   create mode 100644 configs/9tripod-x3568-v4-rk3568_defconfig
>> 
>> diff --git a/arch/arm/dts/rk3568-9tripod-x3568-v4-u-boot.dtsi b/arch/arm/dts/rk3568-9tripod-x3568-v4-u-boot.dtsi
>> new file mode 100644
>> index 00000000000..e0cb8e3e7c8
>> --- /dev/null
>> +++ b/arch/arm/dts/rk3568-9tripod-x3568-v4-u-boot.dtsi
>> @@ -0,0 +1,3 @@
>> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
>> +
>> +#include "rk3568-u-boot.dtsi"
>
>This file is not necessary as if rk3568-9tripod-x3568-v4-u-boot.dtsi is not present, rk3568-u-boot.dtsi will be included automatically (due to CONFIG_SYS_SOC being "rk3568").
>
>> diff --git a/board/rockchip/evb_rk3568/MAINTAINERS b/board/rockchip/evb_rk3568/MAINTAINERS
>> index 030cdbe6f3d..0783fb203c3 100644
>> --- a/board/rockchip/evb_rk3568/MAINTAINERS
>> +++ b/board/rockchip/evb_rk3568/MAINTAINERS
>> @@ -1,3 +1,10 @@
>> +9TRIPOD-X3568-V4
>> +M:     Coia Prant <coiaprant at gmail.com>
>> +R:     Jonas Karlman <jonas at kwiboo.se>
>
>I'm not sure Jonas has agreed to do this so please drop him from the Reviewer, except if he publicly asks you to.
>
>> +S:     Maintained
>> +F:     configs/9tripod-x3568-v4-rk3568_defconfig
>> +F:     arch/arm/dts/rk3568-9tripod-x3568-v4-u-boot.dtsi
>> +
>
>Since you can remove the file, this line can also be removed.
>
>>   BANANAPI-BPI-R2-PRO
>>   M:     Frank Wunderlich <frank-w at public-files.de>
>>   S:     Maintained
>> diff --git a/configs/9tripod-x3568-v4-rk3568_defconfig b/configs/9tripod-x3568-v4-rk3568_defconfig
>> new file mode 100644
>> index 00000000000..71c0087d369
>> --- /dev/null
>> +++ b/configs/9tripod-x3568-v4-rk3568_defconfig
>> @@ -0,0 +1,80 @@
>> +CONFIG_ARM=y
>> +CONFIG_SKIP_LOWLEVEL_INIT=y
>> +CONFIG_SYS_HAS_NONCACHED_MEMORY=y
>> +CONFIG_COUNTER_FREQUENCY=24000000
>> +CONFIG_ARCH_ROCKCHIP=y
>> +CONFIG_DEFAULT_DEVICE_TREE="rockchip/rk3568-9tripod-x3568-v4"
>> +CONFIG_ROCKCHIP_RK3568=y
>> +CONFIG_SPL_SERIAL=y
>> +CONFIG_DEBUG_UART_BASE=0xFE660000
>> +CONFIG_DEBUG_UART_CLOCK=24000000
>> +CONFIG_SYS_LOAD_ADDR=0xc00800
>> +CONFIG_PCI=y
>> +CONFIG_DEBUG_UART=y
>> +CONFIG_AHCI=y
>> +CONFIG_FIT=y
>> +CONFIG_FIT_VERBOSE=y
>> +CONFIG_SPL_FIT_SIGNATURE=y
>> +CONFIG_SPL_LOAD_FIT=y
>> +CONFIG_LEGACY_IMAGE_FORMAT=y
>> +CONFIG_DEFAULT_FDT_FILE="rockchip/rk3568-9tripod-x3568-v4.dtb"
>> +# CONFIG_DISPLAY_CPUINFO is not set
>> +CONFIG_DISPLAY_BOARDINFO_LATE=y
>> +CONFIG_SPL_MAX_SIZE=0x40000
>> +CONFIG_SPL_PAD_TO=0x7f8000
>> +# CONFIG_SPL_RAW_IMAGE_SUPPORT is not set
>> +CONFIG_SPL_ATF=y
>> +CONFIG_CMD_GPIO=y
>> +CONFIG_CMD_GPT=y
>> +CONFIG_CMD_I2C=y
>> +CONFIG_CMD_MMC=y
>> +CONFIG_CMD_PCI=y
>> +CONFIG_CMD_USB=y
>> +CONFIG_CMD_PMIC=y
>> +CONFIG_CMD_REGULATOR=y
>> +# CONFIG_SPL_DOS_PARTITION is not set
>> +CONFIG_SPL_OF_CONTROL=y
>> +CONFIG_OF_LIVE=y
>> +# CONFIG_OF_UPSTREAM is not set
>> +CONFIG_OF_SPL_REMOVE_PROPS="clock-names interrupt-parent assigned-clocks assigned-clock-rates assigned-clock-parents"
>
>Any reason for removing clock-names from xPL DTB?
>
>Looks ok to me otherwise.
>
>Cheers,
>Quentin

Hi Quentin,

Thanks for review, this is the first time I've submitted a patch to u-boot.

I referred to some other rk3568 boards that had the clock name removed, so I left it as it was. There was no problem with the board starting, and I don't know why them remove clocks name.

The board is working fine.

Best,
Coia