NanoPC T4ΒΆ

This tutorial will show the details of NanoPC T4 board mainline support.

Hardware details and wiki NanoPC T4

Hardware Access

../../../_images/npc-t4.jpg

BSP 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

U-Boot

$ git clone https://github.com/amarula/u-boot-amarula
$ cd u-boot-amarula
$ git checkout -b rockdev origin/rockdev
$ make nanopc-t4-rk3399_defconfig
$ make
$ make u-boot.itb

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

SD Boot

Create Single partition and Insert the SD on host

$ cd /path/to/u-boot
$ ./tools/mkimage  -n rk3399 -T rksd -d ./spl/u-boot-spl-dtb.bn out
$ sudo dd if=out of=/dev/sdc seek=64
$ sudo dd if=u-boot.itb of=/dev/sdc seek=16384
$ sync

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

U-Boot SPL board init
Trying to boot from MMC1


U-Boot 2019.04-rc4 (Apr 25 2019 - 16:58:42 +0530)

Model: FriendlyElec NanoPC-T4
DRAM:  3.9 GiB
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: FriendlyElec NanoPC-T4
Net:
Error: ethernet@fe300000 address not set.
eth-1: 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
151 bytes read in 3 ms (48.8 KiB/s)
1:      NanoPc T4
Retrieving file: /boot/Image
21027328 bytes read in 948 ms (21.2 MiB/s)
append: earlycon=uart8250,mmio32,0xff1a0000 root=/dev/mmcblk1p1 rootwait
Retrieving file: /boot/rk3399-nanopc-t4.dtb
57825 bytes read in 5 ms (11 MiB/s)
## Flattened Device Tree blob at 01f00000
   Booting using the fdt blob at 0x1f00000
   Loading Device Tree to 00000000f5f17000, end 00000000f5f281e0 ... OK

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
[    0.000000] Linux version 5.1.0-rc1-dirty (jagan@jagan-XPS-13-9350) (gcc version 6.3.1 20170109 (Linaro GCC 6.3-2017.02)) #13 SMP PREEMPT Tue Apr 30 1
6:43:34 IST 2019
[    0.000000] Machine model: FriendlyElec NanoPC-T4
[    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 0xf57db840-0xf57dcfff]
[    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 v1.1
[    0.000000] random: get_random_bytes called from start_kernel+0xac/0x46c with crng_init=0
[    0.000000] percpu: Embedded 23 pages/cpu @(____ptrval____) s56984 r8192 d29032 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] Speculative Store Bypass Disable mitigation not required
[    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/mmcblk1p1 rootwait