[U-Boot] [PATCH 1/2] arm: imx6: Add DDR3 calibration code for MX6 Q/D/DL

Tim Harvey tharvey at gateworks.com
Thu Dec 17 16:36:20 CET 2015


On Wed, Dec 16, 2015 at 6:40 AM, Marek Vasut <marex at denx.de> 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.
>
> Signed-off-by: Marek Vasut <marex at denx.de>
> Cc: Stefano Babic <sbabic at denx.de>

Marek,

This is great - this would be a great addition to U-Boot IMX6 SPL.

You must have forgotten to post a dependent patch that adds some of
the registers to mmdc_p_regs. If you can post that I can run this
through some testing. Also, in a follow-on post we should add some
more verbiage about how long this takes to perform (I believe you told
me ~10ms) and where to refer in the IMX6 RM's for the steps followed.

Regards,

Tim


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