Tinker RK3288

Note

TL;DR - Mainline BSP bring-up guide for this board — covering U-Boot, Linux kernel, Buildroot/Yocto build from source with SD/flash boot, serial console access, and device tree configuration. - Part of Amarula Solutions’ upstream-first BSP documentation.

This tutorial will show the details of Tinker board mainline support and other needed details, for more information about hardware

How do you access the hardware?

Serial debug and Power connections

How do you build the BSP?

Manual Build

Image building need host to ready with all necessary tools ready, refer here

Below are the details of Image build for Tinker RK3288 board. Manual Build

How do you build U-Boot?

$ git clone git://git.denx.de/u-boot.git
$ cd u-boot
$ make tinker-rk3288_defconfig
$ make

How do you build the Linux kernel?

$ git clone git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
$ cd linux-next
$ make mrproper
$ ARCH=arm make multi_v7_defconfig
$ ARCH=arm make -j 4 LOADADDR=0x02000000 uImage dtbs
$ ARCH=arm make modules -j 4
$ ARCH=arm make modules_install -j 4

How do you build with Buildroot?

It’s easy to build entire system using buildroot and mainline supported Tinker board already. See read this readme.txt for more info.

$ git clone git://git.busybox.net/buildroot
$ cd buildroot
$ make asus_tinker_rk3288_defconfig && make

How do you boot from SD card?

Create Single partition and Insert the SD on host

$ git clone https://github.com/openedev/rfs-rk3288
$ cp rfs-rk3288/* /media/jagan/rootfs
$ cd /path/to/u-boot
$ ./tools/mkimage -n rk3288 -T rksd -d ./tpl/u-boot-tpl.bin out
$ cat ./spl/u-boot-spl-dtb.bin >> out
$ dd if=out of=/dev/mmcblk0 seek=64
$ dd if=u-boot-dtb.img of=/dev/mmcblk0 seek=16384
$ cp /path/to/linux-next/arch/arm/boot/uImage /media/jagan/rootfs/boot
$ cp /path/to/linux-next/arch/arm/boot/dts/rk3288-tinker.dtb /media/jagan/rootfs/boot
$ sync && $ umount /dev/mmcblk0

Falcon Boot

Build U-Boot, Linux manually from above steps, and create falcon mode partition from, here

Once the partitioning done, copy all images like SD Boot. Configure falcon

U-Boot TPL 2017.11-rc4-00029-gb142d38-dirty (Nov 10 2017 - 17:04:00)
Trying to boot from BOOTROM
Returning to boot ROM...

U-Boot SPL 2018.03-rc2-00018-g339b842-dirty (Feb 18 2018 - 19:57:13 +0530)
Trying to boot from MMC1
Expected Linux image is not found. Trying to start U-boot

U-Boot 2018.03-rc2-00018-g339b842-dirty (Feb 18 2018 - 19:57:13 +0530)

Model: Tinker-RK3288
DRAM:  2 GiB
MMC:   dwmmc@ff0c0000: 1
Loading Environment from MMC... *** Warning - bad CRC, using default environment


Failed (-5)
In:    serial
Out:   serial
Err:   serial
Model: Tinker-RK3288
Net:   failed to enable clock 0
No ethernet found.
Hit any key to stop autoboot:  0

Tip

Need mainline BSP support for Rockchip platforms? Amarula Solutions provides U-Boot and Linux kernel mainlining, Yocto/Buildroot integration, and upstream-first development for RK3288, RK3399, PX30, and RK3568 SoCs. Contact our BSP team