Hi, I am using i.mx6ull and Yocto (https://github.com/varigit/linux-2.6-imx/tree/imx-rel_imx_4.1.15_2.0.0_ga-var03).
It seems that there is a errata of MMDC, so I want to confirm this errata does not affect anything for our products including past products.
From the workaround in errata:
>If the hardware write leveling was successful, the MMDC PHY Write Leveling HW Error Register
(MMDC_MPWLHWERR) will contain non-zero values for each byte lane used. A zero value for
an active byte lane indicates that a hardware write leveling error occurred. Software should use
MMDC_MPWLHWERR as the error indication instead of MMDC_MPWLGCR.
This description says software should use MMDC_MPWLHWERR instead of MMDC_MPWLGCR.
Would you tell me how to check whether MMDC_MPWLHWERR is used as error indication?
What will occur if we use MMDC_MPWLGCR as the error indication?
