RK3288 Vyasa¶
Partition Table¶
| Start KB (blocks) | Size KB (Blocks) | Usage |
|---|---|---|
| 0 | 4K | Partition Table etc |
| 4K | 32KB | TPL |
| 32K | 100K | SPL |
| 8M | 1024K - 256K 1MB | U-Boot env (redundant) |
| 16MB | 1MB (0x800) | args |
| 17MB | 8MB (0x4000) | kernel |
| 30MB | partitions | rootfs |
Build¶
bash> git clone git://git.denx.de/u-boot.git
bash> cd u-boot
bash> make vyasa-rk3288_defconfig
bash> make -j 4
Create SD¶
Create Falcon partition and Insert the SD on host and Built the images from Image Build
$ cd /path/to/u-boot
$./tools/mkimage -n rk3288 -T rksd -d ./tpl/u-boot-tpl.bin out
$ cat ./spl/u-boot-spl-dtb.bin >> out
$ dd if=out of=/dev/mmcblk0 seek=64
$ dd if=u-boot-dtb.img of=/dev/mmcblk0 seek=16384
$ git clone https://github.com/openedev/rfs-rk3288
$ cd /path/to/rfs-rk3288
$ cp -rf * /path/to/rfs-rk3288
$ mkdir /path/to/rfs-rk3288/boot
$ cd /path/to/linux-next
$ cp arch/arm/boot/uImage /path/to/rfs-rk3288
$ cp arch/arm/boot/dts/rk3288-vyasa.dtb /path/to/rfs-rk3288
$ sync && sudo umount /media/rfs-rk3288
Configure Falcon¶
Now insert the SD and configure the falcon and restart
U-Boot TPL 2017.11-rc4-00029-gb142d38-dirty (Nov 10 2017 - 17:04:00)
Trying to boot from BOOTROM
Returning to boot ROM...
U-Boot SPL 2017.11-rc4-00029-gb142d38-dirty (Nov 10 2017 - 17:04:00)
Trying to boot from MMC1
Expected Linux image is not found. Trying to start U-boot
U-Boot 2017.11-rc4-00029-gb142d38-dirty (Nov 10 2017 - 17:04:00 +0530)
Model: Amarula Vyasa-RK3288
DRAM: 2 GiB
MMC: dwmmc@ff0c0000: 1
*** Warning - bad CRC, using default environment
In: serial@ff690000
Out: serial@ff690000
Err: serial@ff690000
Model: Amarula Vyasa-RK3288
Net: Net Initialization Skipped
No ethernet found.
Hit any key to stop autoboot: 0
=> mmc dev 1
switch to partitions #0, OK
mmc1 is current device
=> ext4load mmc 1:1 $kernel_addr_r /boot/uImage
8143432 bytes read in 378 ms (20.5 MiB/s)
=> mmc write $kernel_addr_r 0x8800 0x4000
MMC write: dev # 1, block # 34816, count 16384 ... 16384 blocks written: OK
=> ext4load mmc 1:1 $fdt_addr_r /boot/rk3288-vyasa.dtb
37307 bytes read in 23 ms (1.5 MiB/s)
=> setenv bootargs 'console=ttyS2,115200n8 root=/dev/mmcblk0p1 rootwait'
=> spl export fdt $kernel_addr_r - $fdt_addr_r
## Booting kernel from Legacy Image at 02000000 ...
Image Name: Linux-4.14.0-rc4-next-20171013-0
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 8143368 Bytes = 7.8 MiB
Load Address: 02000000
Entry Point: 02000000
Verifying Checksum ... OK
## Flattened Device Tree blob at 01f00000
Booting using the fdt blob at 0x1f00000
Loading Kernel Image ... OK
Loading Device Tree to 0fff3000, end 0ffff1ba ... OK
subcommand not supported
subcommand not supported
Loading Device Tree to 0ffe3000, end 0fff21ba ... OK
Argument image is now in RAM: 0x0ffe3000
=> mmc write 0x0ffe3000 0x8000 0x800
MMC write: dev # 1, block # 32768, count 2048 ... 2048 blocks written: OK
Falcon mode¶
Reset or Power on board with SD, Ctr+C will boot U-Boot and/or Linux boot normally
U-Boot TPL 2017.11-rc4-00029-gb142d38-dirty (Nov 10 2017 - 17:11:25)
Trying to boot from BOOTROM
Returning to boot ROM...
U-Boot SPL 2017.11-rc4-00029-gb142d38-dirty (Nov 10 2017 - 17:11:25)
Trying to boot from MMC1
[ 0.000000] Booting Linux on physical CPU 0x500
[ 0.000000] Linux version 4.14.0-rc4-next-20171013-00012-gd26a4df (root@jagan-XPS-13-9350) (gcc version 6.3.1 20170109 (Linaro GCC 6.3-2017.02)) #2 SMP Mon Oct 23 01:00:23 7
[ 0.000000] CPU: ARMv7 Processor [410fc0d1] revision 1 (ARMv7), cr=10c5387d
[ 0.000000] CPU: div instructions available: patching division code
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] OF: fdt: Machine model: Amarula Vyasa-RK3288