[U-Boot] [PATCH v1 0/3] ddr: vybrid: Support for vf610 built-in DDR3 memory calibration

[Lukasz Majewski]

Hi Fabio,

> [Adding Stefan and Marcel in case they could help reviewing/testing
> this series]

There is also a started thread regarding GTDL:
https://community.nxp.com/thread/490391

On which I'm now also working.

> 
> On Sun, Dec 2, 2018 at 6:42 PM Lukasz Majewski <lukma at denx.de> wrote:
> >
> > This patch series provides code to perform read leveling - RDLVL,
> > which is adjusting the DQS strobe in relation to the DQ signals so
> > that the strobe edge is centered in the window of valid read data.
> >
> > The code is based on Vybrid's Reference Manual's:
> > "VFxxx Controller Reference Manual, Rev. 0, 10/2016", page 1600,
> > 10.1.6.16.4.1 "Software Read Leveling in MC Evaluation Mode"
> >
> > and uses clarification provided by following NXP's community thread:
> > "Vybrid: About DDR leveling feature on DDRMC."
> > https://community.nxp.com/thread/395323
> >
> > It depends on a BITMAP rework patch:
> > usb: composite: Move bitmap related operations
> > to ./include/linux/bitmap.h
> > http://patchwork.ozlabs.org/patch/1006448/
> >
> >
> >
> > Lukasz Majewski (3):
> >   ddr: vybrid: Add DDRMC calibration related registers (DQS to DQ)
> >   ddr: vybrid: Provide code to perform on-boot calibration
> >   ddr: vybrid: Add calibration code to memory controler's (DDRMC)
> > setup code
> >
> >  arch/arm/include/asm/arch-vf610/imx-regs.h  |   6 +
> >  arch/arm/mach-imx/Kconfig                   |   8 +
> >  arch/arm/mach-imx/Makefile                  |   1 +
> >  arch/arm/mach-imx/ddrmc-vf610-calibration.c | 336
> > ++++++++++++++++++++++++++++
> > arch/arm/mach-imx/ddrmc-vf610-calibration.h |  59 +++++
> > arch/arm/mach-imx/ddrmc-vf610.c             |   7 + 6 files
> > changed, 417 insertions(+) create mode 100644
> > arch/arm/mach-imx/ddrmc-vf610-calibration.c create mode 100644
> > arch/arm/mach-imx/ddrmc-vf610-calibration.h
> >
> > --
> > 2.11.0
> >  




Best regards,

Lukasz Majewski

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