[U-Boot] MPC8536DS Evaluation Board Force DDR Setting cannot be done 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.
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CPU : MPC8536DS [Freescale PoerPC] UBOOT : U-Boot 1.3.4 Kernel : Linux 2.6.26
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Any help or comments are highly appreciable.
以上につきまして、ご確認の上宜しくお願い致します。 -- Ashish ★━━━━━━━━━・:*:*:・ ゜・:*:*:・★☆★ アガルワル アシッシュ E-MAIL : ashish.g@teldevice.co.jp ★☆★・:*:*:・ ゜・:*:*:・━━━━━━━━━★
-----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
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。 ★━━━━━━━━━・:*:*:・ ゜・:*:*:・★☆★ 東京エレクトロンデバイス株式会社 インレビアム開発センター「SFTG」 アガルワル アシッシュ
〒224-0045 神奈川県横浜市都筑区東方町１番地 TEL : 045-474-3549 FAX : 045-474-7060 E-MAIL : ashish.g@teldevice.co.jp Home : http://www.teldevice.co.jp/ ★☆★・:*:*:・ ゜・:*:*:・━━━━━━━━━★
-----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
As i were able to set the DDR data Via [I2C bus] SPD[Serial presence detect] table read for the custom board design i am working on ...
so as for now i am not require to debug the Uboot DDR FORce setting option .
though i got the clue about the DR force setting ..
file: "u-boot-1.3.4\board\freescale\mpc8536ds\mpc8536ds.c"
phys_size_t initdram(int board_type) {
...... .. ......
ifdef CONFIG_SPD_EEPROM dram_size = fsl_ddr_sdram(); dram_size = setup_ddr_tlbs(dram_size / 0x100000); dram_size *= 0x100000; #else dram_size = fixed_sdram();
// Modified [Added] dram_size = setup_ddr_tlbs(dram_size / 0x100000);
// ADD function for The LAWBAR SETTING for the DDR memory window #endif .... ... .... }
Modifications needed -> setup_ddr_tlbs(); function call to setup DDR TLB [L2MMUCAMx or we can say MAS(0-3)]
-> As "fsl_ddr_sdram()" performs the a. SPD read b. DDR parameter setting c. LAW BAR, LAWAR setting
so we have to set the LAWBAR And LAW AR there ...
If i have a chance to fix this then i will inform in this series.
If any body wants to fix this then Most Welcome to you ....
-- Ashish Agarwal ★━━━━━━━━━・:*:*:・ ゜・:*:*:・★☆★ アガルワル アシッシュ ★☆★・:*:*:・ ゜・:*:*:・━━━━━━━━━★
participants (2)
-
AgarwalAshish -
Hu Mingkai-B21284