Hi,Chris,
Chris you wrote:
Did you remember to change the AM bits in the OR? If you want to test 128MB the memory controller must be given 128MB for the SDRAM chip select.
Sorry for neglecting the key point.When I added it,u-boot worked fine.Thanks for your hints.
Most board specific files include/configs/<board>.h have a line like: #define CFG_OR1_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_SDRAM )
Maybe it should be changed to #define CFG_OR_AM_SDRAM (- (SDRAM_MAX_SIZE & 0xffff8000)) #define CFG_OR1_PRELIM (CFG_OR_AM_SDRAM | CFG_OR_TIMING_SDRAM )
Yeah,I tested it.It did work well when I set SDRAM_MAX_SIZE bigger than or same as actual RAM size.
Thanks for your notes again!
Best regards,
Sam
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