NanoPC T4 =========== This tutorial will show the details of NanoPC T4 board mainline support. Hardware details and wiki `NanoPC T4 `_ Hardware Access .. image:: /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