NanoPI NEO4

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 NanoPI NEO4 board mainline support.

Hardware details and wiki NanoPI NEO4

How do you access the hardware?

../../../_images/neo4.jpg

How do you build the BSP?

Manual Build

How do you build ATF?

::

$ git clone https://github.com/ARM-software/arm-trusted-firmware.git $ cd /path/to/arm-trusted-firmware $ make realclean $ make CROSS_COMPILE=aarch64-linux-gnu- PLAT=rk3399 bl31 $ cp /path/to/arm-trusted-firmware/build/rk3399/release/bl31/bl31.elf /path/to/u-boot

How do you build U-Boot?

::

$ git clone https://github.com/amarula/u-boot-amarula $ cd u-boot-amarula $ git checkout -b rockdev origin/rockdev $ make nanopi-neo4-rk3399_defconfig $ make $ make u-boot.itb

Rockchip miniloader

$ git clone https://github.com/rockchip-linux/rkbin.git
$ cd /path/to/rkbin
$ ./tools/trust_merger RKTRUST/RK3399TRUST.ini
$ ./tools/loaderimage --pack --uboot /path/to/u-boot/u-boot-dtb.bin uboot.img

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=arm64 make defconfig
$ ARCH=arm64 make Image dtbs -j 4

How do you build with Buildroot?

How do you boot from SD card?

Create Single partition and Insert the SD on host

$ cd /path/to/u-boot
$ ./tools/mkimage  -n rk3399 -T rksd -d /path/to/rkbin/bin/rk33/rk3399_ddr_800MHz_v1.20.bin idbloader.img
$ cat /path/to/rkbin/bin/rk33/rk3399_miniloader_v1.19.bin >> idbloader.img

$ sudo dd if=idbloader.img of=/dev/sdc seek=64
$ sudo dd if=trust.img of=/dev/sdc seek=24576
$ sudo dd if=uboot.img of=/dev/sdc seek=16384
$ sync

Put this SD (or micro-SD) card into your board and reset it. You should see something like:

DDR Version 1.20 20190314
In
Channel 0: DDR3, 933MHz
Bus Width=32 Col=10 Bank=8 Row=15 CS=1 Die Bus-Width=16 Size=1024MB
no stride
ch 0 ddrconfig = 0x101, ddrsize = 0x20
pmugrf_os_reg[2] = 0x10006281, stride = 0x17
OUT
Boot1: 2019-03-14, version: 1.19
CPUId = 0x0
ChipType = 0x10, 239
mmc: ERROR: SDHCI ERR:cmd:0x102,stat:0x18000
mmc: ERROR: Card did not respond to voltage select!
emmc reinit
mmc: ERROR: SDHCI ERR:cmd:0x102,stat:0x18000
mmc: ERROR: Card did not respond to voltage select!
emmc reinit
mmc: ERROR: SDHCI ERR:cmd:0x102,stat:0x18000
mmc: ERROR: Card did not respond to voltage select!
SdmmcInit=2 1
mmc0:cmd5,20
SdmmcInit=0 0
BootCapSize=0
UserCapSize=60543MB
FwPartOffset=2000 , 0
StorageInit ok = 45266
SecureMode = 0
SecureInit read PBA: 0x4
SecureInit read PBA: 0x404
SecureInit read PBA: 0x804
SecureInit read PBA: 0xc04
SecureInit read PBA: 0x1004
SecureInit read PBA: 0x1404
SecureInit read PBA: 0x1804
SecureInit read PBA: 0x1c04
SecureInit ret = 0, SecureMode = 0
atags_set_bootdev: ret:(0)
GPT 0x3380ec0 signature is wrong
recovery gpt...
GPT 0x3380ec0 signature is wrong
recovery gpt fail!
LoadTrust Addr:0x4000
No find bl30.bin
Load uboot, ReadLba = 2000
hdr 0000000003380880 + 0x0:0x88,0x41,0x3e,0x97,0xe6,0x61,0x54,0x23,0xe9,0x5a,0xd1,0x2b,0xdc,0x2f,0xf9,0x35,

Load OK, addr=0x200000, size=0x9c9c0
RunBL31 0x10000
NOTICE:  BL31: v1.3(debug):370ab80
NOTICE:  BL31: Built : 09:23:41, Mar  4 2019
NOTICE:  BL31: Rockchip release version: v1.1
INFO:    GICv3 with legacy support detected. ARM GICV3 driver initialized in EL3
INFO:    Using opteed sec cpu_context!
INFO:    boot cpu mask: 0
INFO:    plat_rockchip_pmu_init(1181): pd status 3e
INFO:    BL31: Initializing runtime services
INFO:    BL31: Initializing BL32
INF [0x0] TEE-CORE:init_primary_helper:337: Initializing (1.1.0-195-g8f090d20 #6 Fri Dec  7 06:11:20 UTC 2018 aarch64)

INF [0x0] TEE-CORE:init_primary_helper:338: Release version: 1.2

INF [0x0] TEE-CORE:init_teecore:83: teecore inits done
INFO:    BL31: Preparing for EL3 exit to normal world
INFO:    Entry point address = 0x200000
INFO:    SPSR = 0x3c9


U-Boot 2019.04-rc4-00136-gfd121f9641-dirty (Apr 16 2019 - 14:02:47 +0530)

Model: FriendlyARM NanoPi NEO4
DRAM:  1022 MiB
MMC:   dwmmc@fe310000: 2, dwmmc@fe320000: 1, sdhci@fe330000: 0
Loading Environment from MMC... *** Warning - bad CRC, using default environment

In:    serial@ff1a0000
Out:   serial@ff1a0000
Err:   serial@ff1a0000
Model: FriendlyARM NanoPi NEO4
Net:   eth0: ethernet@fe300000
Hit any key to stop autoboot:  0
switch to partitions #0, OK
mmc0(part 0) is current device
** No partition table - mmc 0 **
switch to partitions #0, OK
mmc1 is current device
Scanning mmc 1:1...
Found /boot/extlinux/extlinux.conf
Retrieving file: /boot/extlinux/extlinux.conf
160 bytes read in 5 ms (31.3 KiB/s)
1:      linux-4.17.0-rc3
Retrieving file: /boot/Image
20361728 bytes read in 1308 ms (14.8 MiB/s)
append: earlycon=uart8250,mmio32,0xff1a0000 root=/dev/mmcblk0p1 rootwait
Retrieving file: /boot/rk3399-nanopi-neo4.dtb
54786 bytes read in 11 ms (4.7 MiB/s)
## Flattened Device Tree blob at 01f00000
   Booting using the fdt blob at 0x1f00000
   Loading Device Tree to 000000003df1c000, end 000000003df2c601 ... OK

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
[    0.000000] Linux version 5.1.0-rc1 (jagan@jagan-XPS-13-9350) (gcc version 6.3.1 20170109 (Linaro GCC 6.3-2017.02)) #1 SMP PREEMPT Mon Apr 15 22:40:42
 IST 2019
[    0.000000] Machine model: FriendlyARM NanoPi NEO4
[    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 0x000000003e000000
[    0.000000] NUMA: No NUMA configuration found
[    0.000000] NUMA: Faking a node at [mem 0x0000000000200000-0x000000003fffffff]
[    0.000000] NUMA: NODE_DATA [mem 0x3dda2840-0x3dda3fff]
[    0.000000] Zone ranges:
[    0.000000]   DMA32    [mem 0x0000000000200000-0x000000003fffffff]
[    0.000000]   Normal   empty
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000000200000-0x000000003fffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000000200000-0x000000003fffffff]
[    0.000000] psci: probing for conduit method from DT.
[    0.000000] psci: PSCIv1.0 detected in firmware.
[    0.000000] psci: Using standard PSCI v0.2 function IDs
[    0.000000] psci: Trusted OS migration not required
[    0.000000] psci: SMC Calling Convention v1.0
[    0.000000] random: get_random_bytes called from start_kernel+0xac/0x46c with crng_init=0
[    0.000000] percpu: Embedded 23 pages/cpu @(____ptrval____) s56664 r8192 d29352 u94208
[    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: 257544
[    0.000000] Policy zone: DMA32
[    0.000000] Kernel command line: earlycon=uart8250,mmio32,0xff1a0000 root=/dev/mmcblk0p1 rootwait

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