On Wed, Dec 16, 2015 at 7:00 AM, Eric Nelson <e...@nelint.com> wrote: > Hi Marek, > > On 12/16/2015 07:40 AM, Marek Vasut wrote: >> Add DDR3 calibration code for i.MX6Q, i.MX6D and i.MX6DL. This code >> fine-tunes the behavior of the MMDC controller in order to improve >> the signal integrity and memory stability. >> > > I'm glad to see that others are interested in this. > > I've been working on something similar, but struggling to have time > to finish and clean it up: > https://github.com/ericnelsonaz/u-boot/tree/memcal-pass1 > > My aim is/was a bit different though, and aims to be a replacement for > the DDR stress tool, which is cumbersome to use.
Eric, I would love to see a series posted that adds IMX6 MMDC calibration and stress test to U-Boot. I agree the Freescale code is very difficult to use and I don't trust what its doing. I'm currently seeing the Freescale DDR3 stress test fail on 8Gb density memory and I am not convinced its not a problem with their code (yet I haven't had time to pick through it with a fine toothed comb and compare with how I setup the MMDC in U-Boot). Regards, Tim _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot