Buildroot SD card Firefly image boot fails with: "failed to find part:boot&

isle · Posted at 9/14/2016 14:24:28

Hi
Did you get the same problem with the cross compiling toolchain in the android sdk?

isle · Posted at 9/18/2016 10:26:57

hi
what did you get from cmd:
ls /sys/class/display/

isle · Posted at 9/19/2016 10:45:14

hi
your img seems strange。
you can extra the official img to see the difference

isle · Posted at 9/20/2016 09:42:47

HI
your image from github :buildroot-firefly-sdcard-2016.05.img
how did you made it ?

isle · Posted at 9/23/2016 16:10:03

Hi
Yes ,I have tried ,and got the same informations.
I think,the u-boot couldn't load the boot.
But I am unfamiliar with the buildroot program.
I will try to fix when I am free.

isle · Posted at 9/28/2016 11:49:51

cirosantilli Posted at 9/20/2016 15:01
@isle buildroot... https://github.com/buildroot/buildroot :-)

git checkout 2016.05

Hi
I have tested it again ,and the result is success.
the reason is load the wrong uboot ,we need clean up the spl and uboot from the EMMC FLASH
First of all flash a normal ubuntu firmware to the board ,then,boot the os.
clean the spl and uboot by

dd if=/dev/zero of=/dev/mmcblk0 bs=1M count=4

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then reboot ,
now,insert your sdcard and power up .

switch to partitions #0, OK
mmc0 is current device
Scanning mmc 0:1...
Found /boot/extlinux/extlinux.conf
Retrieving file: /boot/extlinux/extlinux.conf
160 bytes read in 35 ms (3.9 KiB/s)
1: firefly-rk3288
Retrieving file: /boot/uImage
5478152 bytes read in 1043 ms (5 MiB/s)
append: console=ttyS2,115200n8 root=/dev/mmcblk0p1 rootwait
Retrieving file: /boot/rk3288-firefly.dtb
35785 bytes read in 37 ms (944.3 KiB/s)
## Booting kernel from Legacy Image at 02000000 ...
Image Name: Linux-4.4.0-rc5
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 5478088 Bytes = 5.2 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 1fff4000, end 1ffffbc8 ... OK
Starting kernel ...

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