RE: [PATCH 5/9] ram: stm32mp1: tuning: deactivate derating during BIST test

24 Mar 2020


      Hi,
...
From: Patrick DELAUNAY patrick.delaunay@st.com
Sent: vendredi 6 mars 2020 11:14
The derating (timing parameter derating using MR4 read value) can't be activated
during BIST test, as the MR4 read answer will be not understood by BIST
(BISTGSR.BDONE bit stay at 0, BISTWCSR.DXWCNT = 0x206 instead of
BISTWCR.BWCNT = 0x200).
This patch only impacts the tuning on LPDDR2/LPDDR3, if
derateen.derate_enable = 1.
Signed-off-by: Patrick Delaunay patrick.delaunay@st.com
Applied to u-boot-stm/next, thanks!
Regards
Patrick