On 13/01/17 17:13, Nicolas le bayon wrote:
> Hi,
>
> Here is a problem I presently meet, any help or track to follow would be
> welcome.
>
> My U-boot (2016.09) loads a kernel and a dtb, and "bootm" all this. This is
> my reference, and this is correctly running.
>
> From this, I'm trying to implement FIT image management, so I enabled
> CONFIG_FIT.
>
> On the other side, I constructed the ITS FILE from my kernel and my dtb, as
> described below:
>
> */dts-v1/;*
> */ {*
> * description = "Simple image with single Linux kernel and FDT blob";*
> * #address-cells = <0x1>;*
> * images {*
> * kernel@1 {*
> * description = "My Linux kernel";*
> * data = /incbin/("./uImage");*
uImage is usually the name of a kernel wrapped into a _legacy U-Boot
image_. Now you are using the new FIT image, so I would use zImage as
the source here instead, otherwise you will have it double wrapped. I
guess U-Boot can't cope with that, also it would be a bit weird.
So copy arch/arm/boot/zImage and use that instead.
Cheers,
Andre.
> * type = "kernel";*
> * arch = "arm";*
> * os = "linux";*
> * compression = "none";*
> * load = <0x40008000>;*
> * entry = <0x40008000>;*
> * hash@1 {*
> * algo = "md5";*
> * };*
> * hash@2 {*
> * algo = "sha1";*
> * };*
> * };*
> * fdt@1 {*
> * description = "My Flattened Device Tree blob";*
> * data = /incbin/("./mydtb.dtb");*
> * type = "flat_dt";*
> * arch = "arm";*
> * compression = "none";*
> * hash@1 {*
> * algo = "md5";*
> * };*
> * hash@2 {*
> * algo = "sha1";*
> * };*
> * };*
> * };*
> */* a notable concept of FIT, configurations */*
> * configurations {*
> * default = "conf@1";*
> * conf@1 {*
> * description = "Boot Linux kernel with FDT blob";*
> * kernel = "kernel@1";*
> * fdt = "fdt@1";*
> * };*
> * };*
> *};*
>
> I managed to construct the ITB (using the mkimage of my u-boot, in tools
> directory) and to store it on my target.
>
> I load this ITB at 0x60000000 address of memory.
>
> The "bootm 0x60000000" gives the following error: "Ramdisk image is corrupt
> or invalid". Indeed I have no ramdisk. Not what was described in tutorials.
>
> The "bootm 0x60000000 - " gives a better result:
> *## Loading kernel from FIT Image at 60000000 ...*
> * Using 'conf@1' configuration*
> * Trying 'kernel@1' kernel subimage*
> * Description: My Linux kernel*
> * Type: Kernel Image*
> * Compression: uncompressed*
> * Data Start: 0x600000e4*
> * Data Size: 5568600 Bytes = 5.3 MiB (Note: same size as the
> original file!)*
> * Architecture: ARM*
> * OS: Linux*
> * Load Address: 0x40008000*
> * Entry Point: 0x40008000*
> * Hash algo: md5*
> * Hash value: 0cccb060e1c4f50e98d8f6c8ed61242e*
> * Hash algo: sha1*
> * Hash value: f0442dd1b8c4f006b25533c3148df2742fc8a7ad*
> * Verifying Hash Integrity ... md5+ sha1+ OK*
> *## Loading fdt from FIT Image at 60000000 ...*
> * Using 'conf@1' configuration*
> * Trying 'fdt@1' fdt subimage*
> * Description: My Flattened Device Tree blob*
> * Type: Flat Device Tree*
> * Compression: uncompressed*
> * Data Start: 0x6054fa70*
> * Data Size: 55154 Bytes = 53.9 KiB **(Note: same size as the
> original file!)*
> * Architecture: ARM*
> * Hash algo: md5*
> * Hash value: a201db29486c7c70b707e085d0196fda*
> * Hash algo: sha1*
> * Hash value: adb751ba04c1aed120a329bb4812a9c8f0bb68a7*
> * Verifying Hash Integrity ... md5+ sha1+ OK*
> * Booting using the fdt blob at 0x6054fa70*
> * Loading Kernel Image ... OK*
> * Using Device Tree in place at 6054fa70, end 605601e1*
>
> *Starting kernel ...*
>
> And unfortunately nothing else after.
>
> I have the feeling to be in the same conditions, but I do not have the same
> result.
>
> If you have any idea of what could be wrong, please let me know, it would
> be welcomed.
> Maybe some corrections have been pushed in this domain since v2016.09?
> Thanks in advance.
>
> Best Regards
> Nicolas
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