[U-Boot] [SoCFPGA] next steps

[Marek Vasut]

Hey,

given that we now have most of the u-boot socfpga stuff in mainline, I decided 
it would be a good idea to list what we're still missing and we should also 
decide how to move on now.

First thing I should probably clarify is the late acceptance of the socfpga 
patches. This is certainly not something we do regularly and is one of the
worst possible practices to do, but this time it felt rather important to get
the platform in shape, so this exception happened. Furthermore, all of the code
in u-boot-socfpga should be based on u-boot-arm and should be submitted through
the u-boot-arm repository, not directly to u-boot .

As you probably noticed, there is a lot of topic branches in the u-boot-socfpga 
[1] repository, each of them with a date tag. This decision came to be so that
rebasing of a branch can be avoided. I will most likely garbage-collect the old
and useless topic branches at some point, when they become irrelevant due to the
code being merged into u-boot-arm/master (and then to u-boot/master).

I think that's about it for the organization part. Now for the remaining part,
we are still missing a few things. Some of them are ready, some of them, not so
much:

 SPL:  This is something we still miss from mainline. We will need to discuss 
       this thoroughly, but one thing is obvious already -- we need to figure
       out how to interoperate with Quartus resp. the bsp-editor generated 
       header files to assemble the SPL properly.
 USB:  This is scheduled for the next merge window. The DWC2 driver is cleaned
       up and seems to be in rather good state. The USB driver currently resides
       in [2]
 EPCQ: This is something I prepared and tested real quick. The EPCS/EPCQ SPI NOR
       can be operated via the Altera SPI driver, which is currently unused at
       all and thus suffering bitrot. The current cleanup is here [3]
 NET:  Does the SoCDK use EMAC0 or EMAC1 ? I believe we still have this issue
       open, I recall Chin was complaining about this.

You can find the latest combined version of all the patches at [4] to ease up 
your testing.

Please feel free to add into this list, it would be really good to keep track of
what's still open and what's missing.

Thank you!

[1] http://git.denx.de/?p=u-boot/u-boot-socfpga.git;a=summary
[2] http://git.denx.de/?p=u-boot/u-boot-
usb.git;a=shortlog;h=refs/heads/topic/dwc2-20140930
[3] http://git.denx.de/?p=u-boot/u-boot-
socfpga.git;a=shortlog;h=refs/heads/topic/drivers/spi-20141006
[4] http://git.denx.de/?p=u-boot/u-boot-
socfpga.git;a=shortlog;h=refs/heads/topic/arm/socfpga-next-20141007