[PATCH v1 2/2] board: apalis_imx6: DDR init using mx6_dram_cfg()

[Fabio Estevam]

On Fri, Jun 24, 2022 at 7:33 AM Francesco Dolcini
<francesco.dolcini at toradex.com> wrote:
>
> Do DDR initialization using the procedural mx6_dram_cfg() instead of
> programming the MMDC using a raw list of register/value pairs, this
> solves some rare boot failures on specific "bad" modules.
>
> Calibration values, DDR geometry are unchanged, memory timings are
> updated according to the relevant memory datasheet, no changes on
> the power consumption.
>
> For IT temperature range SKUs CL is decreased from 8 to 7 and tFAW
> value is increased, for commercial temperature range SKUs some
> changes on ODT parameters.
>
> This change was validated over a range of different apalis-imx6 SoM, on
> the whole working temperature range with weeks of continuous testing.
>
> Signed-off-by: Francesco Dolcini <francesco.dolcini at toradex.com>

Reviewed-by: Fabio Estevam <festevam at denx.de>