[U-Boot-Users] questions about porting to MPC7410+EVB64260

[zhanglei459]

Hi,all:
    I'm a newbie to u-boot.Now I want to port u-boot to my customized
mpc7410 + EVB64260 board.
 After searching source code,I have 3 questions:
 the first,board "EVB64260" may be the best suitable to mine? 
 the second,In evb64260.h, BAT of SDRAM is:
/* SDRAM */
 #define CFG_IBAT0L (CFG_SDRAM_BASE | BATL_PP_RW | BATL_CACHEINHIBIT)
 #define CFG_IBAT0U (CFG_SDRAM_BASE | BATU_BL_256M | BATU_VS | BATU_VP)
 #define CFG_DBAT0L (CFG_SDRAM_BASE | BATL_PP_RW | BATL_CACHEINHIBIT |
BATL_GUARDEDSTORAGE)
 #define CFG_DBAT0U CFG_IBAT0U
I found attribute of SDRAM is not BATL_GUARDEDSTORAGE in some board
configuration file,and some others is not BATL_GUARDEDSTORAGE.And I think
SDRAM should not be BATL_GUARDEDSTORAGE,right?
The last question is when I using Windriver ICE debug u-boot,after I run
program to set MMU,CPU_SDRAM,CPU_DEVICE registers,Workbench Register window
display correct number of MMU,but display all "ffffffff" of
CPU_SDRAM,CPU_CONFIGURATION.when I "RUN" u-boot in flash,it stop and run
into address 0x800 exception program.Anyone can direct me how to explain it?
Thank you very much!Hope reply.
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