On Monday, February 01, 2016 at 11:25:46 PM, Dinh Nguyen wrote:
On 01/22/2016 10:35 AM, Dinh Nguyen wrote:
On 01/21/2016 10:31 AM, Marek Vasut wrote:
On Thursday, January 21, 2016 at 05:20:33 PM, Måns Rullgård wrote:
Tom Rini trini@konsulko.com writes:
On Wed, Jan 20, 2016 at 08:31:30PM +0000, Måns Rullgård wrote:
I'm having a problem with u-boot 2016.01 failing to detect the FPGA on my Altera Cyclone V SoC Development Kit. On startup, it simply prints "FPGA: Not Altera chip ID" (the ID having been read as all-zero). No amount of messing with jumpers or switches makes a difference. The software on the SD card included in the box appears to work, so on a whim I took the SPL pre-loader from this card and combined it with the main 2016.01 u-boot. This makes the detection succeed, despite Marek baulking at this idea. The "good" SPL identifies as "U-Boot SPL 2013.01.01 (Dec 04 2014 - 08:59:41)" which is a different build date than the main u-boot on the same SD card, so which source code version it was built from is anyone's guess.
What's interesting is that Marek's board works with u-boot 2016.01 while mine fails even with the very same binary. The boards are different revisions (his 100-0321003-C1, mine -E1), and the main Cyclone V chips are also different (his 5CSXFC6D6F31C8NES, mine 5CSXFC6D6F31C6N).
Any suggestions for what to try next?
v2016.01 release or to of tree? If top of tree, try http://patchwork.ozlabs.org/patch/570009/
Tried release, top of tree, and top of tree with that patch. Nothing works.
btw. you dropped Dinh from the CC .
Sorry, but I haven't had a chance to take a look at this. I'll try to looking this in the following week.
It seems to work on older Cyclone V chips. I have the latest devkit, which has the 5CSXFC6D6F31C6N chip, and I cannot get an FPGA ID. My older devkit has a 5CSXFC6D6F31C8NES chip, and I can get the FPGA's ID.
This indeed matches my observations. My CV SoCDK also has an older chip, ES even, and I can detect the FPGA ID.
I'll have ask around on what changes were done with the later Cyclone V chips.
Thanks!
Best regards, Marek Vasut