U-Boot Crashes with Dumps

I begin use U-Boot at my custom board based on ppc440x5.

Here is Mem Info that we are using on board:

16MB Nor flash with base address 0xfc000000
512MB DDR with base addr 0x00000000
256kb ISRAM with base addr 0xc0000000

TEXT_BASE 0xfffc0000

Tlb entries for board is:
tlbentry( 0xff000000, SZ_16M, 0xff000000, 0, AC_R|AC_X|AC_W) ------Flash tlbentry( 0xc0000000, SZ_256K, 0xc0000000, 0, AC_R|AC_W|AC_X|SA_I) ------ISRAM
tlbentry( 0x00000000, SZ_256M, 0x00000000, 0, AC_R|AC_W|AC_X|SA_I|SA_G) ------DDR
tlbentry( 0x10000000, SZ_256M, 0x10000000, 0, AC_R|AC_W|AC_X|SA_I|SA_G) ------DDR

I am trying to get a clean build of U-Boot to run on the PPC440x5 based customized board. I have the latest versions U-Boot.
The system executes through board_init_f( ) without any problems, and gets into board_init_r( ). The console output is as follows:

512 MB (ECC is ON, 400 MHz, CL 7)
Top of RAM usable for U-Boot at: 20000000 Reserving 170k for U-Boot at: 1ffd5000
Reserving 1040k for malloc() at: 1fed1000 Reserving 128 Bytes for Board Info at: 1fed0f80 Reserving 64 Bytes for Global Data at: 1fed0f40 Stack Pointer at: 1fed0f28
New Stack Pointer is: 1fed0f28
relocate addr_sp = 1fed0f28, id = 1fed0f40, addr = 1ffd5000

Now running in RAM - U-Boot at: 1ffd5000

NIP: 1FFD7764 XER: 00000000 LR: 1FFD7764 REGS: 1fed0e20 TRAP: 0200 DEAR:
FFED0F18
MSR: 00021000 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 00

GPR00: 1FFD7338 1FED0F10 1FED0F40 1FFD5000 1FFD88E0 00000000 00000000 1FFD7764
GPR08: 00000600 00002098 00000030 2FAF07FE FFFFFFFF C000B330 20002A00 20015000
GPR16: 00000000 00000000 00000000 00000000 48FF2422 00000610 00002C20 00000000
GPR24: 00000000 1FED0F40 1FFD5000 1FED5000 1FED0F80 1FFD5000 20002B10 1FED1000
Call backtrace:
1FFD88D8 1FFD76D8 00000000
machine check

Here I am trying to use backtrace to debug but system is waiting at folloing console o/p.

[root at u-boot]$ cp ../../11dec_rec/u-boot/backtrace . [root at u-boot]$backtrace System.map 0xdffeb000 Reading symbols from System.map
Using Address Offset 0xdffeb000

Quoted 1 line · On Tuesday 12 January 2010 08:02:51 anupbehare at gmail.com wrote:

I begin use U-Boot at my custom board based on ppc440x5.

What kind of PPC4xx ist this? PPC440EPx?

Quoted 54 lines

Here is Mem Info that we are using on board:

16MB Nor flash with base address 0xfc000000

512MB DDR with base addr 0x00000000

256kb ISRAM with base addr 0xc0000000

TEXT_BASE 0xfffc0000

Tlb entries for board is:

tlbentry( 0xff000000, SZ_16M, 0xff000000, 0, AC_R|AC_X|AC_W) ------Flash

tlbentry( 0xc0000000, SZ_256K, 0xc0000000, 0, AC_R|AC_W|AC_X|SA_I)

------ISRAM

tlbentry( 0x00000000, SZ_256M, 0x00000000, 0, AC_R|AC_W|AC_X|SA_I|SA_G)

------DDR

tlbentry( 0x10000000, SZ_256M, 0x10000000, 0, AC_R|AC_W|AC_X|SA_I|SA_G)

------DDR

Quoted 7 lines

I am trying to get a clean build of U-Boot to run on the PPC440x5 based

customized board. I have the latest versions U-Boot.

The system executes through board_init_f( ) without any problems, and

gets

Quoted 78 lines

into board_init_r( ). The console output is as follows:

512 MB (ECC is ON, 400 MHz, CL 7)

Top of RAM usable for U-Boot at: 20000000

Reserving 170k for U-Boot at: 1ffd5000

Reserving 1040k for malloc() at: 1fed1000

Reserving 128 Bytes for Board Info at: 1fed0f80

Reserving 64 Bytes for Global Data at: 1fed0f40

Stack Pointer at: 1fed0f28

New Stack Pointer is: 1fed0f28

relocate addr_sp = 1fed0f28, id = 1fed0f40, addr = 1ffd5000

Now running in RAM - U-Boot at: 1ffd5000

NIP: 1FFD7764 XER: 00000000 LR: 1FFD7764 REGS: 1fed0e20 TRAP: 0200 DEAR:

FFED0F18

MSR: 00021000 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 00

GPR00: 1FFD7338 1FED0F10 1FED0F40 1FFD5000 1FFD88E0 00000000 00000000

1FFD7764

GPR08: 00000600 00002098 00000030 2FAF07FE FFFFFFFF C000B330 20002A00

20015000

GPR16: 00000000 00000000 00000000 00000000 48FF2422 00000610 00002C20

00000000

GPR24: 00000000 1FED0F40 1FFD5000 1FED5000 1FED0F80 1FFD5000 20002B10

1FED1000

Quoted 7 lines

Call backtrace:

1FFD88D8 1FFD76D8 00000000

machine check

When U-Boot crashes/hangs upon relocation to SDRAM, you most likely have a

problem with your SDRAM configuration. Again, which CPU are you using? How is

the SDRAM connected (DIMM or onboard). I suggest you check your SDRAM

controller setup again.

Quoted 12 lines

Here I am trying to use backtrace to debug but system is waiting at

folloing console o/p.

[root at u-boot]$ cp ../../11dec_rec/u-boot/backtrace .

Quoted 7 lines

[root at u-boot]$backtrace System.map 0xdffeb000

Reading symbols from System.map

Using Address Offset 0xdffeb000

This link might help:

http://www.denx.de/wiki/DULG/DebuggingUBoot

Especially chapter 10.1.2. Debugging of U-Boot After Relocation.

Cheers,

Stefan

--

DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel

HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

Phone: (+49)-8142-66989-0 Fax: (+49)-8142-66989-80 Email: office at denx.de

In my case CONFIG_SYS_MONITOR_LEN is 256KB
and CONFIG_SYS_MONITOR_BASE is 0xfffc0000
my destaddr is 0x1ffd5000

so gd->reloc_off = destaddr - CONFIG_SYS_MONITOR_BASE; so gd->reloc_off = 0x20015000
also gd->malloc = 0x1fed1000

After that it continuously restarts with error machine check exception.

Is that mean ram initialization is not done or some thing with reloc_off as it is going in -ve.

Quoted 24 lines · On Tuesday 12 January 2010 10:09:57 anupbehare at gmail.com wrote:

In my case CONFIG_SYS_MONITOR_LEN is 256KB

and CONFIG_SYS_MONITOR_BASE is 0xfffc0000

my destaddr is 0x1ffd5000

so gd->reloc_off = destaddr - CONFIG_SYS_MONITOR_BASE;

so gd->reloc_off = 0x20015000

also gd->malloc = 0x1fed1000

Quoted 7 lines

After that it continuously restarts with error machine check exception.

Is that mean ram initialization is not done or some thing with

reloc_off as

Quoted 1 line

it is going in -ve.

Again, I strongly suspect problems in your SDRAM configuration. You didn't

provide any answers to my questions: Why CPU type are you using? Are you using

a DIMM or soldered SDRAM? Which SDRAM setup code are you using?

Cheers,

Stefan

--

DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel

HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

Phone: (+49)-8142-66989-0 Fax: (+49)-8142-66989-80 Email: office at denx.de

I am using PPC440GX and DIMM SDRAM.