[U-Boot] no DTB with nand SPL on sama5d3

[Eugen.Hristev at microchip.com <Eugen.Hristev@microchip.com>]

On 16.01.2019 21:05, Daniel Evans wrote:
> Hello,
> 
> Yes, I am trying to load the U-boot SPL
> 
> What I posted previously was a custom board.  I switched over to the sama5d3_xplained and all I get with sama5d3_xplained_nandflash_defconfig is ROMBOOT.

This is definitely weird. Are you using vanilla u-boot and no changes on 
top with the sama5d3_xplained? Looks like not even your console works in 
spl, or, you have a bad binary .

> 
> AT91bootstrap works fine.
> 
> I know there was the issue with the nand_header showing up for the SD card but that shouldn’t effect the nand.  Some other patch I am missing to get a non-modified boot.bin nand working?

How are you writing your nandflash ? are you using our sam-ba tool to 
write it ? do you use writeboot applet ?

> 
> The size of the 6th reset vector looks correct, with the assumption that it does not include the 208 bytes of nand_header?

Yes it should not include it. And if you write using sam-ba the nand 
header will be written by sam-ba, so your binary should not include it 
already.

I also suggest you open up a support ticket on support.microchip.com as 
our FAE have a lot of experience to assist with such situations.

Hope this helps,
Eugen

> 
> Dan
> 
> 
> 
>> On Jan 16, 2019, at 6:02 AM, Eugen.Hristev at microchip.com wrote:
>>
>>
>>
>>
>> On 16.01.2019 03:13, Daniel Evans wrote:
>>> After flashing my boot.bin to nand I get the following output:
>>>
>>> RomBOOT
>>> <debug_uart> Missing DTB
>>> ### ERROR ### Please RESET the board ###
>>>
>>> I found the error message in fdtdec.c, but not sure what I am missing.  I have checked that my DTB is included in the boot.bin output.  Any insight on what I am missing?
>>
>> Hello Daniel,
>>
>> Which defconfig are you using when building u-boot ?
>>
>> You are trying to load the U-boot SPL right ?
>>
>> It doesn't look like you even get to the point when you get to load the
>> u-boot proper, so maybe there are missing parts from your SPL, or the
>> size inside the 6th reset vector is not correctly calculated
>>
>> Did you try with our at91bootstrap proprietary second level bootloader
>> and get the same issue when booting the proper u-boot with it ?
>>
>> Hope this helps,
>>
>> Eugen
>>
>>>
>>> Dan
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> 
>