NXP Layerscape

[Barbier, Renaud]

I am a bit confused on how the QSPI image is built.
>From images/Makefile.layerscape
$(obj)/barebox-ls1046ardb-qspi.image: $(obj)/start_ls1046ardb.pblb \
          $(board)/ls1046ardb/ls1046ardb_rcw_qspi.cfg \
         $(board)/ls1046ardb/ls1046ardb_pbi.cfg

It makes use of the file ls1046ardb/ls1046ardb_pbi.cfg not ls1046ardb/ls1046ardb_qspi_pbi.cfg. 
ls1046a_qspi_pbi.cfg contains an endian swap that I can see in the U-boot rcw+pbi data.

When I take an hex dump of the barebox-ls1046ardb-qspi.image, I see that the scratchpad register 2 (BOOTLOCPTR) in the PBI section points to 0x10000000 (as in the PBI file), not the PBL address start address.
How can this work?

Renaud





-----Original Message-----
From: Ahmad Fatoum <a.fatoum at pengutronix.de> 
Sent: 10 June 2021 15:09
To: Barbier, Renaud <renaud.barbier at abaco.com>; Barebox List <barebox at lists.infradead.org>
Subject: Re: NXP Layerscape



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Hello Barbier,

On 10.06.21 15:49, Barbier, Renaud wrote:
> I received a NXP  LS1046A-RDB

It doesn't reboot cleanly with a USB serial adapter attached!
Jfyi, gave me a scare first time, when I thought I broke something ^^.

>
> I built barebox for the LS1046A and got the image barebox-ls1046ardb-qspi.image.
> I programmed the image in the alternative SPI bank as per NXP instructions:
> =>    tftp $load_addr
> =>    sf erase 0 +$filesize && sf write $load_addr 0 $filesize
>
> Barebox does not boot.
>
> I did notice that u-boot is at address 0x40100000 while the RCW is at 0x40000000.
> My understanding is that barebox is one image and shall be programmed 
> at offset 0 of the SPI (0x40000000)

Can't comment on that. Sascha did the integration.

> At present I cannot connect my I.C.E. due a pin stuck in my MIPI connector.
>
> Any return on experience is welcome.

Can comment on that: Last time I did this, I wrote some documentation:
https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.barebox.org%2Fdoc%2Flatest%2Fboards%2Flayerscape.html&data=04%7C01%7Crenaud.barbier%40abaco.com%7Cdf668f5e5f2d497d54cb08d92c194c3e%7Ce6f27451899d4d0db8fa88baafa551a7%7C0%7C0%7C637589309423979193%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=SnXT0WYjQMJL%2FwK1LaOK1h7OMUcLiL37cojY2hzP89s%3D&reserved=0

There I flashed barebox from another barebox booted from SD-Card.
I'd assume that should still work. I can't recall how the CPLD needed to be tickled, but it would be helpful to know whether doing it like described in the documentation doesn't work for you.

Cheers,
Ahmad

>
> Cheers,
> Renaud
>
>
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