I am using imx 8mplus lpddr4 evk and custom board of imx8mplus . i build yocto BSP of 6.6.3 version.
i buid the two images separately for evk and custom board.
in evk image , I changed the RAM size from 6gb to 1gb , frequency I kept default(4000mts)
in custom board image , I changed the RAM size to 6gb to 1 gb , frequency I configured 2400MTS
on evk , I flashed the my image , it is working fine .
on custom board , it is showing kernel panic .
Thanks & Regards
Srinivas
Can you also try 2400MTS on EVK?
Table 3. IMX8MPlus LPDDR4 Typical Frequency Point
DDR Data Rate/MTS |
DDR frequency/MHZ |
DRAM_PLL_FDIV_CTL0 |
4000 |
2000 |
0xFA031 |
3200 |
1600 |
0xC8031 |
2400 |
1200 |
0x12C032 |
1600 |
800 |
0x190033 |
1066 |
533 |
0x10A033 |
667 |
334 |
0x14E034 |