line card using p1020 processor using ramboot

[amruth]

Hi

Yiping

I am trying to bring up line card using p1020 processor. I am currently using p1020 rdb reference board. For line card no u-boot code is present in flash. How do we bring up board using DDR  taking reference board as starting point. For reference board how do we compile u-boot for RAM boot there is no option except sd card. How do we compile the code for booting using DDR . I am able to run hardware tests on DDR upto 1GB after using p1020rdb_init_core.tcl. I can import u-boot code to any location on DDR using JTAG. How do we start u-boot from DDR. I see that code gets into exception after setting PC to reset vector say 0x1107fffc and it does not work. At reset vector I see ba instruction pointing to some ffffffa8, Any pointers will help.

Thanks

Amruth p.v

[yipingwang]

Hello Amruth,

I don't think this is an appropriate way to download u-boot to RAM with CodeWarrior through JTAG, then debug u-boot from RAM. Because firstly CodeWarrior needs to execute the p1020rdb_init_core.tcl to initialize the target board, the initialization file includes LAW, MMU, DDR, eLBC controller configurations, these will affect u-boot executing. So we often use attach launch configuration to debug u-boot rather than download method.

1. You could use CodeWarrior to program u-boot to NOR Flash, then debug u-boot from NOR Flash with CW.

2. You could use boot_format to write u-boot to SD card, then debug u-boot using SD card.

For detailed information about how to debug u-boot, please refer to sections "Debugging U-Boot using NOR flash" and "Debugging U-Boot using SPI and SD/MMC flash" in CW_PA_v10.4.0\PA\Help\PDF\Targeting_PA_Processors.pdf. You also could refer to this application note CodeWarrior U-Boot Debugging.

If further assistance is needed, please feel free to let me know.

Have a great day,
Yiping

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[amruth]

Hi

Yiping

I have issues with programming through flash because the flash programmer unable to flash id. I don't have SD card just have DDR which works reliably.

I have used this doc as starting point

http://lists.denx.de/pipermail/u-boot/2013-March/149774.html

Here there is method of loading u-boot through JTAG and bring up u-boot on DDR.

I have tried and code loads as reset vec but has problem at arch/PowerPC/cpu/mpc85xx/start.S after loading exception vectors.

Please let me know if you know whether u-boot works using the link above. How does it fir into latest u-boot code from denx.

Thanks

Amruth p.v

[yipingwang]

Hello Amruth,

Because P1020 SRAM is 256K, you need to download u-boot image to DDR. Please customize CW initialization file only including DDR LAW and TLB configuration, then use CodeWarrior to connect to the target and load u-boot bin file to DDR at 0x11001000(following SD boot). Then in CodeWarrior register panel, disable DDR TLB, define 4k a boot page TLB mapping 0xfffff000 to  0x110c0000. Then run u-boot from CodeWarrior IDE, in the connect configuration, PC is set at 0xFFFFFFFC.

Do you use SDK 1.6? SDK 1.6 should use two stages boot from SRAM.

Have a great day,
Yiping

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[amruth]

Hi

Yiping

Thanks for your response. I am using SDK 1.2. I have issues with DDR not working consistently. I am seeing error reading memory  "CCS Last Errror: Cannot start SAP transactions protocol plugin error". The mem location is e00e0004. If you aware of this issues. Please let me know. Should we only init DDR LAW and TLB configs which one is simple to modify P1020RDB_init_core.tcl or P1020RDB_init_sram.tcl. If you sample files just for doping this please provide me.

Thanks

Amruth p.v

[yipingwang]

Hello Amruth,

In CodeWarrior initialization file, 0xE0000000  to 0xE01FFFFF is assigned to CCSR memory space, the CCSRBAR is moved at 0xE0000000 in CW initialization file. DDR controller and debug register configurations need to use CCSR memory map, so please also initialize CCSR LAW and TLB.

Have a great day,
Yiping

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[amruth]

Hi

Yiping

Thanks for your response.

I am getting this issue "Cannot start SAP transactions protocol plugin error" when I use P1020RDB_init_core.tcl but when I run P1020RDB_init_sram.tcl there is no issue I can see 256K SRAM with initial values of 0xFF...

I see that when I tried to set PC address for reset mem[CCSR } = 0xfffffffc to stop the debugger. The codewarrior indicates Failed to write register PC.

I am unable to get DDR working but was woeking previously using same init_core file. Please let me know if we have any specific issues in hardware which might have created the problem with DDR.

Thanks

Amruth p.v

[yipingwang]

Hello Amruth,

The most probable problem is caused by DDR controller configuration, the initialization file is used for Freescale demo board, and probably not suitable for your customized board.

You could download QCVS(QorIQ Configuration and Validation Suite) from Freescale public Website to assist you to do DDR controller configuration.

Have a great day,
Yiping

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[amruth]

Hi

Yiping

Thanks for your reply

Tried to program NOR flash after initializing using SRAM(init_sram.tcl).

I am getting the following errors after running diagnose command.

Itried both AMD and intel algorithms the sector count is 256, size is 0x2000 and mem org is 32M*8*1

fl::target -lc "test_30sept_Debug_P1020_connect"

fl::target -b 0x0 0x40000

fl::target -v off -l off

cmdwin::fl::device -d "JS28F256M29EWL" -o "32Mx8x1" -a 0xff000000 0x100ffffff

cmdwin::fl::diagnose

Beginning Operation ...    

------------------------- 

Performing target initialization ...    

Downloading Flash Diagnostics Driver ...   

Reading flash ID ...

Running Diagnostics ...   

Error:  The Diagnostics operation failed.   Flash diagnostics reports the following error(s):  Operation Unsupported

Error:  Diagnose operation failed

Error: The Diagnostics operation failed. Flash diagnostics reports the following error(s):  Operation Unsupported

Thanks

Amruth p.v

[yipingwang]

Hello Amruth,

The address range is not correct in the log.

You could only add erase and program actions and flash u-boot to NOR Flash. Have you done this?

Have a great day,
Yiping

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[amruth]

Hi

Yiping

I have tried erase and program flash but it shows command failed. Please see detailed logs below it shows it erased and programmed but it does not work.

fl::target -lc "test_30sept_Debug_P1020_Download"

fl::target -b 0x0 0x40000

fl::target -v off -l on

cmdwin::fl::device -d "JS28F256M29EWL" -o "16Mx16x1" -a 0xfe000000 0xffffffff

cmdwin::fl::protect all off

Beginning Operation ...   

-------------------------

    log: Using Algorithm: amd16x1.elf

    log: 

    log: 

    log: ======================================================================

    log: === Target Configuration Settings

    log: === Launch Configuration:       test_30sept_Debug_P1020_Download

    log: ======================================================================

    log: Connecting ...

Performing target initialization ...   

    log: Connected ...

    log: 

    log: ======================================================================

    log: === Execute:              Unprotect

    log: === Timestamp:            Tue Oct 07 16:15:54 2014

    log: === Flash Device:         JS28F256M29EWL

    log: === Flash Organization:   16Mx16x1

    log: === Flash Mem Start Addr: 0xFE000000

    log: === Flash Mem End Addr:   0xFFFFFFFF

    log: ======================================================================

Downloading Flash Diagnostics Driver ...  

    log: Loading Flash Device Driver at: 0x00000000

    log: Flash Driver Buffer is at:  0x00004010

    log: Flash Driver Buffer Size is:  0x0003BFF0

    log: 

    log: Writing the Address 

    log: Writing the address of the sector list 

    log: Clearing the status 

    log: Setting up Registers 

    log: Commanding target to run 

Reading flash ID ...

    log: Reading init return status 

    log: Done

    log: 

    log: Initialization Command Succeeded

    log: Writing the Address 

    log: Writing the Number of Sectors 

    log: Writing the address of the sector list 

    log: Writing the sector list 

Unprotecting all sectors...  

    log: Clearing the status 

    log: Setting up Registers 

    log: Commanding target to run 

Unprotecting ...  

    log: Reading unprotect return status 

    log: Done

Unprotect Command Succeeded   

    log: Timestamp:  Tue Oct 07 16:15:59 2014

fl::target -lc "test_30sept_Debug_P1020_Download"

fl::target -b 0x0 0x40000

fl::target -v off -l on

cmdwin::fl::device -d "JS28F256M29EWL" -o "16Mx16x1" -a 0xfe000000 0xffffffff

cmdwin::fl::erase all

Beginning Operation ...   

-------------------------

    log: Using Algorithm: amd16x1.elf

    log: 

    log: 

    log: ======================================================================

    log: === Target Configuration Settings

    log: === Launch Configuration:       test_30sept_Debug_P1020_Download

    log: ======================================================================

    log: Connecting ...

Performing target initialization ...   

    log: Connected ...

    log: 

    log: ======================================================================

    log: === Execute:              Erase

    log: === Timestamp:            Tue Oct 07 16:16:43 2014

    log: === Flash Device:         JS28F256M29EWL

    log: === Flash Organization:   16Mx16x1

    log: === Flash Mem Start Addr: 0xFE000000

    log: === Flash Mem End Addr:   0xFFFFFFFF

    log: ======================================================================

Downloading Flash Device Driver ...  

    log: Loading Flash Device Driver at: 0x00000000

    log: Flash Driver Buffer is at:  0x00004010

    log: Flash Driver Buffer Size is:  0x0003BFF0

    log: 

    log: Writing the Address 

    log: Writing the address of the sector list 

    log: Clearing the status 

    log: Setting up Registers 

    log: Commanding target to run 

Reading flash ID ...

    log: Reading init return status 

    log: Done

    log: 

    log: Initialization Command Succeeded

    log: Writing Erase Function Code 

Erasing entire flash ...   

    log: Writing the Address 

    log: Writing the Number of Sectors 

    log: Writing the address of the sector list 

    log: Writing the sector list 

    log: Clearing the status 

    log: Setting up Registers 

    log: Commanding target to run 

Erasing ...

    log: Reading erase return status 

    log: Done

Erase Command Succeeded   

    log: Timestamp:  Tue Oct 07 16:16:48 2014

fl::target -lc "test_30sept_Debug_P1020_Download"

fl::target -b 0x0 0x40000

fl::target -v off -l on

cmdwin::fl::device -d "JS28F256M29EWL" -o "16Mx16x1" -a 0xfe000000 0xffffffff

cmdwin::fl::image -f "D:\\flash_test.bin" -t "Binary/Raw Format" -re off -oe off

cmdwin::fl::write

Beginning Operation ...   

-------------------------

Programming file D:\flash_test.bin  

    log: 

    log: Using Algorithm: amd16x1.elf

    log: 

    log: 

    log: ======================================================================

    log: === Target Configuration Settings

    log: === Launch Configuration:       test_30sept_Debug_P1020_Download

    log: ======================================================================

    log: Connecting ...

Performing target initialization ...   

    log: Connected ...

    log: 

    log: ======================================================================

    log: === Execute:              Program

    log: === Timestamp:            Tue Oct 07 16:18:51 2014

    log: === Flash Device:         JS28F256M29EWL

    log: === Flash Organization:   16Mx16x1

    log: === Flash Mem Start Addr: 0xFE000000

    log: === Flash Mem End Addr:   0xFFFFFFFF

    log: ======================================================================

Downloading Flash Device Driver ...  

    log: Loading Flash Device Driver at: 0x00000000

    log: Flash Driver Buffer is at:  0x00004010

    log: Flash Driver Buffer Size is:  0x0003BFF0

    log: 

    log: Writing the Address 

    log: Writing the address of the sector list 

    log: Clearing the status 

    log: Setting up Registers 

    log: Commanding target to run 

Reading flash ID ...

    log: Reading init return status 

Error: command failed

[yipingwang]

Hello Amruth,

According to your programmer log, in the first section flash ID could be read and erase command could be executed successfully, but in the flash programmer section, it seems that it is failed to read the flash ID. Please make sure use the SRAM initialization file in PA\PA_Support\Initialization_Files\QorIQ_P1 to avoid the DDR unstable problem. Please make sure you have modified the initialization file for your target, the NOR Flash start address is 0xFE000000 rather than 0xFF000000, please modify LAW, TLB, BR0, OR0, you could refer to P1020RM for detailed information about OR0 and BR0 definition.

In addition, for flash programing task, you missed an important configuration, in the panel "Add Program/Verify Action", please check "Apply Address Offset" and specify the exact effective address of u-boot, for P1020RDB-PC it should be "0xfff80000".

You could use the following command sequence to read flash ID manually.

After connect to the target from Run->Debug Configurations-><launch configuration>->Debug, open debug shell console from Window->show view->Debugger Shell.

# Set device to Read state

change p:fe000000 f0f0 16bit

# Get Mfg and Device ID values

change p:fe000aaa aaaa 16bit

change p:fe000554 5555 16bit

change p:fe000aaa 9090 16bit

# Display Mfg ID value at offset 0

# Display Dev ID value at offset 2

display p:fe000000..fe000004 16bit

# Reset device to Read state

change p:fe000000 f0f0 16bit

Have a great day,
Yiping

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[amruth]

Hi

Yiping

Thanks for your reply.

I am able to program the flash. I have successfully erased verified and programmed u-boot into flash at location 0xfff80000. The blank check works as expected from target task. It reads 0xfff80000 0x27 which is u-boot header.

The issue is codewarrior running debugger shell shows mem 0xfff80000 0xffffffff and it happens all the time.

The amd driver  and flash utility works but the codewarrior does not read from flash.

We have checked using code warrior connection server also using JTAG read command and it also shows same as 0xffffffff.

Please let me know what could be the issue.

Thanks

Amruth p.v