ROCKPI-4

This is the tutorial for the Radxa ROCK-PI-4 target.

Hardware details and wiki ROCKPI-4C

If incase the board is not displayed on there website, here are the quick specs:

Single HDMI 2.0 port is replaced with a micro HDMI port and a mini DisplayPort, meaning two external displays can be connected. 4GB RAM and a WiFi/Bluetooth module. Rest of the specs are same as its predecessor ROCKPI-4B.

Radxa ROCK-PI-4 series has three board models: Model A Model B Model C

Hardware Access

BSP Building

Host require few tools/packages to build BSP, install them from host

ATF

$ git clone https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git
$ cd /path/to/trusted-firmware-a
$ make distclean
$ make CROSS_COMPILE=aarch64-linux-gnu- PLAT=rk3399 bl31

U-Boot

$ git clone https://github.com/amarula/u-boot-amarula
$ cd u-boot-amarula
$ git checkout -b rock-pi origin/rock-pi
$ export BL31=/path/to/arm-trusted-firmware/build/rk3399/release/bl31/bl31.elf
$ make rock-pi-4-rk3399_defconfig
$ make

Linux

$ git clone git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
$ cd linux-next
$ make mrproper
$ ARCH=arm64 make defconfig
$ ARCH=arm64 make Image dtbs -j 4

Buildroot

$ git clone git://git.buildroot.net/buildroot
$ cd buildroot
$ make rockpi_4_defconfig
$ make

SD Boot

In the output/images directory, flash sdcard.img on to micro sd

$ sudo dd if=output/images/sdcard.img of=/dev/sdX status=progress (X - find it from fdisk -l)
$ sync

Put this micro-SD card onto your board in the slot and power the board. You should see something like:

U-Boot TPL 2020.07-rc4 (Jun 16 2020 - 22:29:04)
Channel 0: LPDDR4, 50MHz
BW=32 Col=10 Bk=8 CS0 Row=15 CS1 Row=15 CS=2 Die BW=16 Size=2048MB
Channel 1: LPDDR4, 50MHz
BW=32 Col=10 Bk=8 CS0 Row=15 CS1 Row=15 CS=2 Die BW=16 Size=2048MB
256B stride
256B stride
lpddr4_set_rate: change freq to 400000000 mhz 0, 1
lpddr4_set_rate: change freq to 800000000 mhz 1, 0
Trying to boot from BOOTROM
Returning to boot ROM...

U-Boot SPL 2020.07-rc4 (Jun 16 2020 - 22:29:04 +0530)
Trying to boot from MMC1


U-Boot 2020.07-rc4 (Jun 16 2020 - 22:29:04 +0530)

SoC: Rockchip rk3399
Reset cause: POR
Model: Radxa ROCK Pi 4
DRAM:  3.9 GiB
PMIC:  RK808
MMC:   mmc@fe310000: 2, mmc@fe320000: 1, sdhci@fe330000: 0
Loading Environment from MMC... Card did not respond to voltage select!
*** Warning - No block device, using default environment

In:    serial
Out:   serial
Err:   serial
Model: Radxa ROCK Pi 4
Net:   eth0: ethernet@fe300000
Hit any key to stop autoboot:  0
Card did not respond to voltage select!
switch to partitions #0, OK
mmc1 is current device
Scanning mmc 1:3...
Found /extlinux/extlinux.conf
Retrieving file: /extlinux/extlinux.conf
156 bytes read in 5 ms (30.3 KiB/s)
1:      RK3399_ROCKPI4 linux
Retrieving file: /Image
26288640 bytes read in 1122 ms (22.3 MiB/s)
append: earlycon=uart8250,mmio32,0xff1a0000 root=/dev/mmcblk1p4 rw rootwait
Retrieving file: /rk3399-rock-pi-4.dtb
54196 bytes read in 7 ms (7.4 MiB/s)
## Flattened Device Tree blob at 01f00000
   Booting using the fdt blob at 0x1f00000
   Loading Device Tree to 00000000f2503000, end 00000000f25133b3 ... OK

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
[    0.000000] Linux version 5.10.0-rc5 (suniel@suniel-P5WE0) (gcc version 8.4.0 (Buildroot 2020.08-git-00273-g8f70124)) #1 SMP PREEMPT Tue Oct 10 22:32:16 IST 2020
[    0.000000] Machine model: Radxa ROCK Pi 4
[    0.000000] earlycon: uart8250 at MMIO32 0x00000000ff1a0000 (options '')
[    0.000000] printk: bootconsole [uart8250] enabled
[    0.000000] efi: Getting EFI parameters from FDT:
[    0.000000] efi: UEFI not found.
[    0.000000] cma: Reserved 32 MiB at 0x00000000f6000000
[    0.000000] NUMA: No NUMA configuration found
[    0.000000] NUMA: Faking a node at [mem 0x0000000000200000-0x00000000f7ffffff]
[    0.000000] NUMA: NODE_DATA [mem 0xf57ef800-0xf57f0fff]
[    0.000000] Zone ranges:
[    0.000000]   DMA32    [mem 0x0000000000200000-0x00000000f7ffffff]
[    0.000000]   Normal   empty
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000000200000-0x00000000f7ffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000000200000-0x00000000f7ffffff]
[    0.000000] psci: probing for conduit method from DT.
[    0.000000] psci: PSCIv1.1 detected in firmware.
[    0.000000] psci: Using standard PSCI v0.2 function IDs
[    0.000000] psci: MIGRATE_INFO_TYPE not supported.
[    0.000000] psci: SMC Calling Convention v1.0
[    0.000000] percpu: Embedded 22 pages/cpu s52952 r8192 d28968 u90112
[    0.000000] Detected VIPT I-cache on CPU0
[    0.000000] CPU features: detected: ARM erratum 845719
[    0.000000] CPU features: detected: GIC system register CPU interface
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 999432
[    0.000000] Policy zone: DMA32
[    0.000000] Kernel command line: earlycon=uart8250,mmio32,0xff1a0000 root=/dev/mmcblk1p4 rw rootwait
[    0.000000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes, linear)
[    1.182515] Segment Routing with IPv6
OK

Welcome to ROCKPI4..!!
rockpi4 login:

use root for login.

DisplayPort

Since DisplayPort is still in Mainling list. Please use below patch to support dual display support on ROCK-Pi 4C.

ROCK-Pi 4C DisplayPort patch Virtual PD