Rockchip Rk3318 X88 pro 10 - in progress

[haven]

Just in case you want to build your own kernel and choose a specific version (es 23.11):

git clone --depth=1 --branch=v23.11 https://github.com/armbian/build

 

Choose edge or current

./compile.sh kernel BOARD=rk3318-box EXPERT="yes" INSTALL_HEADERS=yes RELEASE=jammy BRANCH=edge

 

Optional you can choose specific kernel version using KERNELBRANCH:

./compile.sh kernel BOARD=rk3318-box EXPERT="yes" INSTALL_HEADERS=yes RELEASE=jammy BRANCH=edge KERNELBRANCH="tag:v6.6.2"

 

Compile is quite fast (few minutes).

 

In folder you will find the deb pckgs to be installed:

ls output/debs/
linux-dtb-edge-rockchip64_23.11.0-trunk_arm64__6.6.2-Sa06c-Df461-P65a8-C40f3Hfe66-HK01ba-Vc222-B1743-R448a.deb
linux-headers-edge-rockchip64_23.11.0-trunk_arm64__6.6.2-Sa06c-Df461-P65a8-C40f3Hfe66-HK01ba-Vc222-B1743-R448a.deb
linux-image-edge-rockchip64_23.11.0-trunk_arm64__6.6.2-Sa06c-Df461-P65a8-C40f3Hfe66-HK01ba-Vc222-B1743-R448a.deb

 

Install all and reboot:

sudo dpkg -i *

 

Optional - compile u-boot:

./compile.sh uboot BOARD=rk3318-box EXPERT="yes" BRANCH=edge

 

Edited November 27 by haven

[haven]

In the last few weeks I had problems with HDMI audio.  See details here:

 

 

 

[haven]

The HDMI audio problem was a great opportunity to study how HDMI is detected and handled in rk3318 box!

 

Initially I supposed it was a kernel problem and tried with many kernel version 6.1.63 - 6.2 - 6.6.2 - 6.6.39 - 6.6.47 - 6.6.60 (current or edge no matters), with poor results.

Then discovered If I boot with HDMI cable disconnected and connect the cable after BOOT (15s after power-up)  -> HDMI sound ok

 

This pointed me towards the investigation of the boot process: if HDMI is connected after the u-boot process, it works like charm!

 

How to disable HDMI detection in u-boot config?

 

Get armbian sources and tools:

git clone --depth=1 --branch=v23.11 https://github.com/armbian/build

I used branch 23.11 to match kernel 6.6.2

 

Turned out that U-boot config can be changed only with a patch.

./compile.sh uboot-patch BOARD=rk3318-box BRANCH=edge

 

Attached the patch I created for include/configs/evb_rk3328.h to dIsable video output in u-boot and use only console.

 

u-boot-rockchip64-edge.patch 

+#define ROCKCHIP_DEVICE_SETTINGS \
+               "stdin=serial,usbkbd\0" \
+               "stdout=serial,vidconsole\0" \
+               "stderr=serial,vidconsole\0"
+

 

Placed the patch in:

build/patch/u-boot/u-boot-rockchip64

 

Then rebuild u-boot only:

./compile.sh uboot ARTIFACT_IGNORE_CACHE=yes BOARD=rk3318-box BRANCH=edge

During the process you will see which patches are applied, hopefully without any error.

 

This will create a deb package in build/output/debs:

linux-u-boot-rk3318-box-edge_23.11.0-trunk_arm64__2022.07-Se092-P44dd-H8c72-Ve9d0-B1179-R448a.deb

 

Install with dpkg:

sudo dpkg -i linux-u-boot-rk3318-box-edge_23.11.0-trunk_arm64__2022.07-Se092-P44dd-H8c72-Ve9d0-B1179-R448a.deb

 

This will create 2 files:

ls /usr/lib/linux-u-boot-edge-rk3318-box/
idbloader.img  u-boot.itb

 

Last step - need to flash the new u-boot into boot partition ( /dev/mmcblk0 )

sudo dd if=idbloader.img of=/dev/mmcblk0 seek=64 conv=notrunc
sudo dd if=u-boot.itb of=/dev/mmcblk0 seek=16384 conv=notrunc

 

Done!

Reboot and I see a black screen during u-boot.

Soon after the kernel is loaded, HDMI is activated and works properly, both video and audio.

 

u-boot-rockchip64-edge.patch

[haven]

Modified instruction for H96 Max rk3318, with

• armbian installed to internal emmc (/dev/mmcblk2)
• kernel 6.60 current

git clone --depth=1 --branch=main https://github.com/armbian/build

 

Create patch:

./compile.sh uboot-patch BOARD=rk3318-box BRANCH=current

 

During patch process, modify config:

cd build/cache/sources/u-boot-worktree/u-boot/v2024.07/configs
sudo nano rk3318-box_defconfig
CONFIG_VIDEO=n

 

After creation, move patch:

mv build/output/patch/u-boot-rockchip64-current.patch build/patch/u-boot/v2024.07/

 

Compile u-boot:

./compile.sh uboot ARTIFACT_IGNORE_CACHE=yes BOARD=rk3318-box BRANCH=current

 

Install with dpkg:

cd output/debs
sudo dpkg -i linux-u-boot-rk3318-box-current_24.11.0-trunk_arm64__2024.07-S3f77-P1c9c-H4674-Vfe58-Bda0a-R448a.deb

 

Flash uboot to boot partition:

cd /usr/lib/linux-u-boot-current-rk3318-box/

sudo dd if=idbloader.img of=/dev/mmcblk2 seek=64 conv=notrunc
sudo dd if=u-boot.itb of=/dev/mmcblk2 seek=16384 conv=notrunc

 

Done!

Reboot and I see a black screen during u-boot.

[jock]

@haven did you just try a different TV/monitor to see if the missing audio persists? In my case I tested and checked I have HDMI audio working even with u-boot video output enabled.