BUS fault error in MPC8308

mohsenhaghighat · ‎08-30-2016

Hi all. I want to u-boot MPC8308 in my design board but it errors bus fault.

can anybody help me?

thanks.

"

protect on 12
flash_protect ON: from 0xFE060000 to 0xFE06FFFF
flash_is_busy: 0
protect on 13
8 MB
NAND: No NAND device found!!!
0 MiB
*** Warning - bad CRC, using default environment

PCIE0: No link
Requested speed:400000, i2c_clk:133333332
FDR:0x28, div:640, ga:0x4, gb:0x2, a:10, b:64, speed:208333
Tr <= 345 ns
FDR:0x25, div:384, ga:0x5, gb:0x1, a:12, b:32, speed:347222
Tr <= 105 ns
FDR:0x01, div:352, ga:0x9, gb:0x0, a:20, b:16, speed:378787
Tr <= 32197 ns
divider:333, est_div:352, DFSR:6
FDR:0x01, speed:378787
Requested speed:400000, i2c_clk:133333332
FDR:0x28, div:640, ga:0x4, gb:0x2, a:10, b:64, speed:208333
Tr <= 345 ns
FDR:0x25, div:384, ga:0x5, gb:0x1, a:12, b:32, speed:347222
Tr <= 105 ns
FDR:0x01, div:352, ga:0x9, gb:0x0, a:20, b:16, speed:378787
Tr <= 32197 ns
divider:333, est_div:352, DFSR:6
FDR:0x01, speed:378787
In:    serial
Out:   serial
Err:   serial
Bus Fault @ 0x07fd0318, fixup 0x00000000
Machine check in kernel mode.
Caused by (from msr): regs 07f0bde8 Unknown values in msr
NIP: 07FD0318 XER: 00000000 LR: 07FD030C REGS: 07f0bde8 TRAP: 0200 DAR: 0000000

MSR: 00003000 EE: 0 PR: 0 FP: 1 ME: 1 IR/DR: 00

GPR00: FFFFFFFF 07F0BED8 07F0BF4C FFFFFFFF FFFFFFFE 00000000 00000000 13BBAFD3
GPR08: 07F92E8C F001C048 00000208 07FD272C 07F0BF4C AF8FEFFF 07FEB000 09F8E000
GPR16: FFFFF8FF FEFF7FDF F950FF87 FFFFFFFF FFFFFFFF FFFFFFFF 00000000 07F91098
GPR24: 00000001 07F0BF4C 07F0BF28 FE7FE000 00002000 00000000 07FED5A4 00002000
Call backtrace:
07FD030C 07FC0368 07F9294C 07F915F0
machine check
Resetting the board.


U-Boot 2009.11-rc1 (Aug 30 2016 - 04:37:57) MPC83XX
"

Original Attachment has been moved to: error.txt.zip

alexander_yakov · ‎08-31-2016

Bus fault error means the code tried to access invalid memory location (not assigned to any memory controller), no bus transfer acknowledge assertion within reasonable time and "machine check" exception, caused by bus monitor timeout.

To debug the U-boot code to understand which particular instruction causes this error, please look this link:

DecodingUBootCrashDumps < DULG < DENX

Have a great day,
Alexander

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