rtc: add ERRATA information for RTC write failure WA
add information for: Functional Errata Ref #: FE-3124064 - WA for failing time read attempts
- Description
The device supports CPU write and read access to the RTC Time register.
However, due to this erratum, Write to RTC TIME register may fail.
Read from RTC TIME register may fail.
- Workaround
After writing to RTC TIME register, issue a dummy write of 0x0 twice to RTC Status register.
RTC TIME register should be read twice, the second read will return a proper value.
- No Functional Impact After Workaround is applied
Change-Id: I52abcbad36a01f35780bb255868e0355f9279c05
Signed-off-by: Omri Itach <omrii@marvell.com>
Reviewed-on: http://vgitil04.il.marvell.com:8080/18564
Tested-by: Star_Automation <star@marvell.com>
Reviewed-by: Kostya Porotchkin <kostap@marvell.com>
1 file changed
