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Config issue of LPDDR2

Question asked by David Wu on Jul 22, 2016
Latest reply on Jul 23, 2016 by David Wu


We have a customer board use 32 bit LPDDR2 and use 2 chip select. We can get config by DDR calibration tool and run  "DDR Stess test" more than 2 hours. Verey things seems ok.


It's fail to use the table on my android project. But if I ignor "CS1" setting as below, the board can boot up to android.


How to config 32 bit lpddr2 and use 2 chip select ? Thanks!


// Channel0 : Configure DDR device:         


setmem /32 0x021b001c = 0x003F8030 // MRW: BA=0 CS=0 MR_ADDR=63 MR_OP=0

setmem /32 0x021b001c = 0xFF0A8030 // MRW: BA=0 CS=0 MR_ADDR=10 MR_OP=ff

setmem /32 0x021b001c = 0x82018030 // MRW: BA=0 CS=0 MR_ADDR=1  MR_OP=c2

setmem /32 0x021b001c = 0x06028030 // MRW: BA=0 CS=0 MR_ADDR=2  MR_OP=6. tcl=8, tcwl=4

setmem /32 0x021b001c = 0x01038030 // MRW: BA=0 CS=0 MR_ADDR=3


//setmem /32 0x021b001c = 0x003F8038 // MRW: BA=0 CS=1 MR_ADDR=63 MR_OP=0

//setmem /32 0x021b001c = 0xFF0A8038 // MRW: BA=0 CS=1 MR_ADDR=10 MR_OP=ff

//setmem /32 0x021b001c = 0x82018038 // MRW: BA=0 CS=1 MR_ADDR=1  MR_OP=c2

//setmem /32 0x021b001c = 0x06028038 // MRW: BA=0 CS=1 MR_ADDR=2  MR_OP=6. tcl=8, tcwl=4

//setmem /32 0x021b001c = 0x01038038 // MRW: BA=0 CS=1 MR_ADDR=3



David Wu