Hi, My board uses SAMSUNG K4S511632M SDRAM in 8M * 16 bit * 4 banks configuration (13 rows & 10 columns).Two such chips are used to get 128 MB and uses CS1 for chip select.My board uses MPC852T processor.
MPC to SDRAM configuration is as follows: ====================== A29 :A0 A28 :A1 A27 :A2 A26 :A3 A25 :A4 A24 :A5 A23 :A6 A22 :A7 A21 :A8 A20 :A9 GPL_A0 : A10 A18 :A11 A17 :A12 A6 :BA0 A5 :BA1 GPL_A3 :CAS GPL_A2 :RAS GPL_A5 :WE ===================== My problem is that when i write some word in first RAM chip is mirrored in the other RAM chip.And Effectivly i m able to use only 64 MB of RAM. What could be the problem??? Following SDRAM settings are used IMMR:0xff000000 OR1: 0xf8000e00 BR1: 0x00000081 MSTAT:0x00000400 MAMR: 0x80a06114 MAR: 0x88 MCR:0x80002105 Thanks in advance... -Anil ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
