Mity CPU Platforms » MitySOM-5CSX Altera Cyclone V

01/30/2015

MW 07:42 AM Software Development: RE: Very high TX packet loss on gigabit Ethernet

Hi Chris,
We've had this module deployed on a couple of different designs as well as the DevKits and I don't think we've had to tweak the pad skews and I know that our packet loss was pretty much negligible. Our validation test uses ... Michael Williamson

CW 02:54 AM Software Development: Very high TX packet loss on gigabit Ethernet

Hi,
I've been having trouble getting gigabit Ethernet working on a MitySOM-5CSX dev kit using a preloader, u-boot and linux built as per the instructions at [[Building_u-Boot_and_Preloader]] and [[Yocto_for_MitySOM-5CSX]]. It works fin... Chris Weinman

01/26/2015

DV 03:28 PM Software Development: RE: U-boot not bringing Linux kernel up correctly

Hi Chris,
We've also just recently found that that commit is causing troubles for our 5CSX dev kit as well. It appears to be adjusting the SDRAM row size to 4GB instead of 1GB in order to workaround an SDRAM errata. We are currently l... Daniel Vincelette

01/23/2015

CW 04:21 AM Software Development: RE: U-boot not bringing Linux kernel up correctly

OK, problem commit seems to be 938156 (http://support.criticallink.com/gitweb/?p=u-boot-socfpga.git;a=commit;h=93815696dce132ff8abc4ab2f4c195339ff821a0). I haven't had a chance to look at it to see if there are any obvious problems here.... Chris Weinman

01/22/2015

CW 07:26 PM Software Development: RE: U-boot not bringing Linux kernel up correctly

Hi Michael,
p/n: 80-000642RI-1
s/n: 14008623
It's in a dev kit at the moment. Our base board borrowed heavily from the dev kit, so there shouldn't be any significant differences there.
I have tried other modules to no avail.
I did ... Chris Weinman

MW 07:52 AM Software Development: RE: U-boot not bringing Linux kernel up correctly

Hi Chris,
We will look into it. Can you post the module type and serial number just so we know your exact configuration?
-Mike Michael Williamson

CW 01:58 AM Software Development: U-boot not bringing Linux kernel up correctly

Hi,
I've built the preloader, U-Boot, Linux kernel and filesystem as per the instructions at https://support.criticallink.com/redmine/projects/mityarm-5cs/wiki/Building_u-Boot_and_Preloader and https://support.criticallink.com/redmine/p... Chris Weinman