[LEDE-DEV] mkimage producing FIT images without data files

[J Mo]

It looks like the "data =" field was not what mkimage wanted it to be. 
Unfortunately, the extent of documentation on this is:

"data : Path to the external file which contains this node's binary data."

Which is not helpful given that the format is peculiar.



The following are examples I found while searching:

data = /incbin/("${2}");

data = /incbin/("./vmlinux.bin.gz");

data = /incbin/("path/to/data/file.bin")

data = /incbin/(\"${KERNEL}\");



I am guessing the first portion is a path and the second is the file 
name relative to that path. Why that format is needed is unexplained.

I don't have anything good to say about u-boot/denx documentation.



On 08/06/2016 04:05 PM, J Mo wrote:
>
> Sorry, I forgot to include this stdout from running mkimage manually:
>
> FIT description: LEDE FIT image for TEW827DRU
> Created:         Sat Aug  6 16:01:44 2016
>  Image 0 (script at 0)
>   Description:  u-boot-HTTP firmware update script
>   Created:      Sat Aug  6 16:01:44 2016
>   Type:         Script
>   Compression:  uncompressed
>   Data Size:    93 Bytes = 0.09 kB = 0.00 MB
>   Hash algo:    crc32
>   Hash value:   9641b1ca
>  Image 1 (ubi-image at 1)
>   Description:  UBI rootfs image
>   Created:      Sat Aug  6 16:01:44 2016
>   Type:         Firmware
>   Compression:  uncompressed
>   Data Size:    168 Bytes = 0.16 kB = 0.00 MB
>   Architecture: ARM
>   Load Address: unavailable
>   Hash algo:    crc32
>   Hash value:   374daf15
>
>
> Note the "Data Size: " fields being wrong. The real Image 0 file is 
> 200KB and Image 1 is 5.7MB.
>
>
>
>
> On 08/06/2016 03:59 PM, J Mo wrote:
>> Hello
>>
>> I am trying to get LEDE to build for a new device, and my device 
>> needs a FIT image.
>>
>> However, mkimage appears to be putting out a FIT file without the 
>> actual data files being included. All the rest of the FIT file 
>> formatting looks right on cursory inspection, but the data files 
>> which were to be included are missing.
>>
>> Any ideas?
>>
>> My .its looks like this:
>>
>>
>> /dts-v1/;
>> / {
>>   description = "LEDE FIT image for TEW827DRU";
>>   #address-cells = <1>;
>>     images {
>>       script at 0 {
>>         data = 
>> "/home/user/proj/lede/newrouter-ledeproj-try6/target/linux/ipq806x/image/flash-tew827dru.scr";
>>         description = "u-boot-HTTP firmware update script";
>>         type = "script";
>>         compression = "none";
>>         arch = "arm";
>>         hash at 0 {
>>           algo = "crc32";
>>         };
>>       };
>>       ubi-image at 1 {
>>         data = 
>> "/home/user/proj/lede/newrouter-ledeproj-try6/build_dir/target-arm_cortex-a15+neon-vfpv4_musl-1.1.15_eabi/linux-ipq806x/tmp/lede-ipq806x-TEW827DRU-squashfs-factory.bin";
>>         description = "UBI rootfs image";
>>         type = "firmware";
>>         compression = "none";
>>         arch = "arm";
>>         hash at 0 {
>>           algo = "crc32";
>>         };
>>       };
>>     };
>>   };
>>
>>
>