Hello Mingkai
Thanks for you kind attention to my mail.
Did you modify the the DDR memory size according to your DIMM in the function fixed_sdram()?
Yes i know i have to do this. I fixed this via declaring a MACRO Globally.
but for my first test case as i mentioned that i used the same Memory and same condition as they were before. The same memory (DDR1 DIMM 512MB) i am using before with the SPD read DDR setting.
Indeed it is is neccessary to check @ the very first stage. :)
thanks for your point but i am still in the trap :(
-- Ashish
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-----Original Message----- From: u-boot-bounces@lists.denx.de [mailto:u-boot-bounces@lists.denx.de] On Behalf Of AgarwalAshish Sent: Friday, May 15, 2009 3:27 PM To: u-boot@lists.denx.de Cc: ashish.g@teldevice.co.jp Subject: [U-Boot] MPC8536DS Evaluation Board Force DDR Setting cannot bedone properly
Hello All,
I am Ashish Agarwal.
Currently i am working on the MPC8536DS Freescale Development system evaluation and the Uboot development for a customized board.
Problem 1 : DDR Force setting
when i try to force setting of DDR parameter over 8536DS board through the #define CONFIG_SPD_EEPROM -> #undef CONFIG_SPD_EEPROM #define CONFIG_DDR_SPD -> #undef CONFIG_DDR_SPD
the compile giver me error about "CONFIG_SPD_EEPROM is required" as this is written at the bottom place of include/configs/MPC8536ds.h file
becuase we want to set forcly DDR parameters so I commented these lines too ==================================================== #ifndef CONFIG_SPD_EEPROM
#error ("CONFIG_SPD_EEPROM is required") #endif
DDR Force parameter were set as they were set when i complied the source with SPD setting. [Dumped from the Uboot]. They have to work for Force DDR setting too ;) but they are not working.
I was able to compile the souce and dowloading of uboot to the FLASH. but ubootis stuck in between.
I stuck somewhere arround "realocate_code" the next step of u-boot print statements where i am reaching upto is "Now Running in RAM- U-Boot at: %0x ".
and as i am not able to debugg u-boot via the CW it is paining me to get rid out of this all stuff.
[UBoot Debug for the MPC8536DS is not rleased yet they might be supported in 8.8.3 version of CW :( ]
though i had done DDR parameter work for the VxWorks OS DDR Parameter setting [so i now how to calculate those]
--> is it the source problem ?? The DDR parameter settings via "phys_size_t fixed_sdram(void)" function. or it is the other issue ?? is i am missing something.
Did you modify the the DDR memory size according to your DIMM in the function fixed_sdram()?
Best Regards, Mingkai