[U-Boot] MPC8536DS Evaluation Board Force DDR Setting cannot bedone properly

[AgarwalAshish]

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

以上につきまして、ご確認の上宜しくお願い致します。
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> 
>
>> -----Original Message-----
>> From: u-boot-bounces at lists.denx.de 
>> [mailto:u-boot-bounces at lists.denx.de] On Behalf Of AgarwalAshish
>> Sent: Friday, May 15, 2009 3:27 PM
>> To: u-boot at lists.denx.de
>> Cc: ashish.g at 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
>