[U-Boot] u-boot device model SPI + SPI Flash

[Michal Simek <michal.simek@xilinx.com>]

Hi Marco,

petalinux 2015.4 will be released with SPI DM model. I have just debug
it and it is working fine but it requires some changes in the mainline
to get it work properly. It is not working properly on Microblaze.
I expect there is no problem to use this driver on zynq.

Just give me some time to send all I have in our tree. I will push that
core changes to xilinx git tree soon too.

Thanks,
Michal

On 10/27/2015 01:52 PM, Hoefle Marco wrote:
> Ok renaming it worked and I could extract the petalinux bsp. Thanks for the hint.
> The dts I found is very similar to the one we use successfully in the mainline Linux Kernel. There SPI + SPI Flash are working.
> 
> However, I think (please correct me if I am wrong) the petalinux u-boot config does not use driver model + dts.
> I think the previous method does not work anymore in mainline u-boot as the spi driver has already been ported.
> If I do not use these defines:
> # define CONFIG_DM
> # define CONFIG_DM_SPI
> # define CONFIG_OF_SPI
> 
> I'l get a compilation error.
> So I think it would be a good change to test the u-boot driver model with the Xilinx SPI driver. I am happy to play the guinea pic ;-)
> 
> I think currently it is something with the u-boot dts parsing as none of the functions provided by xilinx_spi.c are called.
> I attached the currently used u-boot configuration + u-boot dts.
> 
> 
> 
> 
> 
>> -----Original Message-----
>> From: Michal Simek [mailto:michal.simek at xilinx.com]
>> Sent: Dienstag, 27. Oktober 2015 12:37
>> To: Hoefle Marco <Marco.Hoefle@nanotronic.ch>; Michal Simek
>> <michal.simek@xilinx.com>; Jagan Teki <jteki@openedev.com>
>> Cc: u-boot at lists.denx.de
>> Subject: Re: [U-Boot] u-boot device model SPI + SPI Flash
>>
>> On 10/27/2015 12:12 PM, Hoefle Marco wrote:
>>>
>>>
>>>> -----Original Message-----
>>>> From: Michal Simek [mailto:michal.simek at xilinx.com]
>>>> Sent: Montag, 26. Oktober 2015 14:52
>>>> To: Jagan Teki <jteki@openedev.com>; Hoefle Marco
>>>> <Marco.Hoefle@nanotronic.ch>; Michal Simek
>> <michal.simek@xilinx.com>
>>>> Cc: u-boot at lists.denx.de
>>>> Subject: Re: [U-Boot] u-boot device model SPI + SPI Flash
>>>>
>>>> On 10/23/2015 12:20 PM, Jagan Teki wrote:
>>>>> On 23 October 2015 at 15:42, Hoefle Marco
>>>>> <Marco.Hoefle@nanotronic.ch>
>>>> wrote:
>>>>>> Maybe somebody has a valid u-boot dts file for a microblaze system
>>>>>> with
>>>> an SPI core? That would helpful.
>>>>>> We want to move from a parallel nor flash to a SPI flash for FPGA
>>>>>> config,
>>>> u-boot, Linux Kernel and rootfs.
>>>>>> The last missing part is u-boot. The kernel dts file is ok and the
>>>>>> mtd
>>>> partitions are set up correctly.
>>>>>
>>>>> I even grepped on linux/arch/microblaze couldn't get much info, So
>>>>> added Michal he well aware of this may be he can help.
>>>>
>>>>
>>>>
>> http://www.xilinx.com/support/download/index.html/content/xilinx/en/d
>>>> o wnloadNav/embedded-design-tools/2015-2.html
>>>>
>>>> ac701 bsp and I expect also Kc705.
>>>
>>> I downloaded the AC701 bsp file but it is not a valid archive. Do I need to
>> use  (and learn how to use) the 3 GB pertalinux tools to build u-boot for
>> Microblaze?
>>> The u-boot config for the AC701 and the dts file would probably sufficient.
>>
>> it is tar.gz just rename it.
>>
>> Thanks,
>> Michal
>  
>