README-tinkerboard

Install rockchip image for Tinkerboard with patch

1)Compile kernel as debian_kernel
cd rk-linux/kernel$
patch -p1 < rk_kernel_tinker_wlan_bt.diff
make ARCH=arm miniarm-rk3288_defconfig -j16
make zImage ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- -j16
make modules ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- -j16
make ARCH=arm rk3288-miniarm.dtb CROSS_COMPILE=arm-linux-gnueabihf- -j16
make dtbs CFLAGS=-g ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- -j16

2)Make system.img as rockchip wiki instruction
build/mk-kernel.sh rk3288-miniarm
build/mk-image.sh -c rk3288 -t boot
cd cd ../rootfs/
sudo apt-get install binfmt-support qemu-user-static
sudo dpkg -i ubuntu-build-service/packages/*
sudo apt-get install -f
RELEASE=stretch TARGET=desktop ARCH=armhf ./mk-base-debian.sh
RELEASE=stretch ARCH=armhf ./mk-rootfs.sh
./mk-image.sh
build/mk-image.sh -c rk3288 -t system -r rootfs/linaro-rootfs.img

3)Add modules to system.img
*check from this example as follows:
a) check mount point:
$ fdisk system.img
(snip)
Device       Start     End Sectors  Size Type
system.img1     64    8063    8000  3.9M Linux filesystem
system.img2  16384   24575    8192    4M Linux filesystem
system.img3  24576   32767    8192    4M Linux filesystem
system.img4  32768  262143  229376  112M EFI System
system.img5 262144 5242846 4980703  2.4G Linux filesystem
b) Calculate mount point within ‘mount’ command
$ sudo mount -o loop,offset=`expr 262144 '*' 512` system.img /mnt/sdx1
c) Install wifi module with make modules_install
$ sudo make CLFAGS=-g ARCH=arm INSTALL_MOD_PATH=/mnt/sdx1 modules_install
  INSTALL crypto/echainiv.ko
  INSTALL drivers/i2c/i2c-stub.ko
  INSTALL drivers/net/wireless/rockchip_wlan/rtl8723bs/8723bs.ko
  DEPMOD  4.4.103
d) Check if succeeded installation
$ cd /mnt/sdx1/lib/modules/4.4.103/kernel/drivers/net/wireless
$ ls
8723bs.ko
e) umount system.img
$ sudo umount system.img

4)Flash system.img to sdcard
build/flash_tool.sh -c rk3288  -d /dev/sdx -p system  -i  out/system.img 

5)Insert SD to your tinkerboard to check wifi works

(Updated..uups I forgot that for a long while):please refer to work BT on it:
https://github.com/masafumiohta/bt_rootfs_overlay/blob/master/bt_rootfs_overlay.sh