we have designed a MPC8280 based board which has 512MB RAM,128 MB Application flash,512KB boot flash.we have ported U-boot 1.3.1 on mpc8280, cpuis running at 300MHz. we are using only one chip select for SDRAM. SDRAM has 12 rows 10 columns.
bus clock is 100MHz
scc clock is 125MHz
vco_out is 500Mhz
CPM clock is 250 MHz
U-boot is booting and working fine. but when i give mtest command from u-boot to check SDRAM working then u-boots hangs after 1 hour giving some exception error.
i have captured the log file /error file which is got in hyper terminal during testing time. please find in the attachment.
let me know what is the issue. please help me out if any one faced same scenario or give me your valuable suggestions.