[U-Boot] MPC8641D stucks before relocation

Ashish curieux.khetan at gmail.com
Sat Nov 9 10:51:43 CET 2013


On Monday 28 October 2013 05:31 PM, Ashish Khetan wrote:
> I disabled the 2nd core by using "cfg_core1_enable" and D2_MSRCID1 
> signal is not connected and we are using DDR controller 2... will this 
> create any obstacles to relocate? Is there any other register 
> configuration for DDR? can somebody help me to understand this or give 
> me some pointer to get more understanding for this... I am getting 
> frusted because I am stuck at this point from last 20 days. please 
> help... thanks in advance and Regards
>
>
> On Sat, Oct 26, 2013 at 12:20 AM, Ashish Khetan 
> <curieux.khetan at gmail.com <mailto:curieux.khetan at gmail.com>> wrote:
>
>     Thanks For reply, i check DDR configuration using Code warrior,
>     and successfully getting read/write from DDR. I use the following
>     configuration in code warrior and same in u-boot...
>     writemem.l 0xf8006000 0x0000001f # CS0_BNDS 	
>     	
>     	
>     	
>     writemem.l 0xf8006080 0x80914102 # CS0_CONFIG 	
>     	
>     	
>     	
>     writemem.l 0xf8006100 0x00070000 # TIMING_CFG_3 	
>     	
>     	
>     writemem.l 0xf8006104 0xFF770F0F # TIMING_CFG_0 	
>     	
>     	
>     writemem.l 0xf8006108 0x7F78F777 # TIMING_CFG_1 	
>     	
>     	
>     writemem.l 0xf800610C 0x00205114 # TIMING_CFG_2 	
>     	
>     	
>
>     writemem.l 0xf8006110 0x43088008 # DDR_SDRAM_CFG
>
>     writemem.l 0xf8006114 0x24401000 # DDR_SDRAM_CFG2
>
>     writemem.l 0xf8006118 0x43800E52 # DDR_SDRAM_MODE 	
>     	
>     	
>     writemem.l 0xf800611C 0x8000C000 # DDR_SDRAM_MODE_2 	
>     	
>     	
>     writemem.l 0xf8006120 0x00000000 # DDR_SDRAM_MD_CNTL 	
>     	
>     	
>     writemem.l 0xf8006124 0x05080000 # DDR_SDRAM_INTERVAL 	
>     	
>
>     writemem.l 0xf8006128 0x00000000 # DDR_DATA_INIT
>
>     writemem.l 0xf8006130 0x03800000 # DDR_SDRAM_CLK_CNTL
>
>     sleep 200
>
>     writemem.l 0xf8006110 0xC3088008 # DDR_SDRAM_CFG
>
>
>     but I did not understand... can you give some light on this.
>
>     thanks again...
>
>
>
>     On Fri, Oct 25, 2013 at 10:25 PM, York Sun <yorksun at freescale.com
>     <mailto:yorksun at freescale.com>> wrote:
>
>         It is probably because your DDR wasn't initialized correctly.
>         You can
>         try to dump all DDR registers and check if anyone is
>         suspicious. You can
>         also override any register before enabling the controller.
>
>         You may also add some memory test before relocation.
>
>         York
>
>         On 10/25/2013 06:38 AM, Ashish Khetan wrote:
>         > hii I am using MPC8641D based custom board for evaluation
>         purpose. I am
>         > using minimal configuration for this board i.e. only FLASH
>         and DDR
>         > initialisation. when I compiled U-boot in debug mode its
>         printing
>         > addresses, i check for those addresses and found that it is
>         unable to
>         > relocate itself to DDR(4*MT47H64M16). The following message
>         was printed...
>         >
>         > U-Boot 2013.04 (Oct 25 2013 - 15:05:33)
>         >
>         > Unicore software on multiprocessor system!!
>         > To enable mutlticore build define CONFIG_MP
>         > CPU:   8641, Version: 2.1, (0x80900021)
>         > Core:  E600 Core 0 (MSSCR0=8000, PORDEVSR=ab08307), Version:
>         2.2,
>         > (0x80040202)
>         > Clock Configuration:
>         >        CPU:800  MHz, MPX:400  MHz
>         >        DDR:200  MHz (400 MT/s data rate), LBC:25   MHz
>         > L1:    D-cache 32 KB enabled
>         >        I-cache 32 KB enabled
>         > L2:    Disabled
>         > Board: Wind River SBC8641D
>         > DRAM:      DDR: 512 MiB
>         > Top of RAM usable for U-Boot at: 20000000
>         > Reserving 114k for U-Boot at: 1ffe3000
>         > Reserving 136k for malloc() at: 1ffc1000
>         > Reserving 80 Bytes for Board Info at: 1ffc0fb0
>         > Reserving 152 Bytes for Global Data at: 1ffc0f18
>         > Stack Pointer at: 1ffc0f00
>         > New Stack Pointer is: 1ffc0f00
>         >
>         > and stuck here...
>         >
>         > Any pointer or link to get more about this will be helpful.
>         > Thanks in Advance
>         >
>         >
>         >
>         > _______________________________________________
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>         >
>
>
>
>
Now its working... by default the data width of bus was 64bit and ddr2 
was configured for 32-bit.. so i change the data width and now its 
working...

Thanks a lot for lighting up the path...

now i am trying to configure like CPU:1200  MHz, MPX:600  MHz DDR:300 
  MHz (600 MT/s data rate) but i its stucking before relocation... its 
working file at DDR 250Mhz.. is it because DDR or FLASH configuration.??

Thanks again and Regards


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