Hi, I am using Embedded Planet?s EP852T board and there are 2 MT48LC4M16 SDRAMs in this board .
The .../ppcboot/u-boot-1.0.0x/board/ep852/ep852.c file has the 852 UPM initialization routine and it is configured not to use the address multiplexing capability of the 852. It uses an external address multiplexer chip instead. I would like to remove the external multiplexer chip and connect the 852 address lines directly to the SDRAMs without using a multiplexer. I know that I will have to set the SAM bit in the SDRAM_OR1VALUE register and also the AMX bits in the UPM RAM words of the const uint sdram table[] array. Please let me know if someone has already done that setting and would like to share it with me. Thanks, Fabio Estevam ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
