[#5297] Kernel fails to boot in BF526-EZBRD with max core clock 600MHz

Submitted By: Vivi Li

Open Date

2009-06-29 23:39:08 Close Date

2009-06-29 23:43:44

Priority:

Medium High Assignee:

Nobody

Status:

Closed Fixed In Release:

N/A

Found In Release:

N/A Release:

Category:

N/A Board:

N/A

Processor:

BF526 Silicon Revision:

Is this bug repeatable?:

Yes Resolution:

Rejected

Uboot version or rev.:

Toolchain version or rev.:

toolchain4.1_09r1-rc7

App binary format:

N/A

Summary: Kernel fails to boot in BF526-EZBRD with max core clock 600MHz

Details:

Kernel fails to boot in BF526-EZBRD with maximum core clock 600MHz. u-boot and kernel are both in 09r1 branch. Kernel config is default.

U-Boot 2008.10-svn1952 (ADI-2009R1-rc2) (Jun 27 2009 - 22:53:19)

CPU: ADSP bf526-0.0 (Detected Rev: 0.0) (parallel flash boot)

Board: ADI BF526 EZ-Board board

Support: http://blackfin.uclinux.org/

Clock: VCO: 600 MHz, Core: 600 MHz, System: 50 MHz

RAM: 64 MB

Flash: 4 MB

In: serial

Out: serial

Err: serial

Net: Blackfin EMAC

MAC: 00:E0:FE:0F:1B:7F

Hit any key to stop autoboot: 0

bfin> tftp 0x1000000 uImage.policy

Using Blackfin EMAC device

TFTP from server 10.100.4.174; our IP address is 10.100.4.50

Filename 'uImage.policy'.

Load address: 0x1000000

Loading: #################################################################

#################################################################

##################

done

Bytes transferred = 4074096 (3e2a70 hex)

bfin> bootm

## Booting kernel from Legacy Image at 01000000 ...

Image Name: Linux-2.6.28.10-ADI-2009R1-svn68

Created: 2009-06-29 19:05:49 UTC

Image Type: Blackfin Linux Kernel Image (gzip compressed)

Data Size: 4074032 Bytes = 3.9 MB

Load Address: 00001000

Entry Point: 001c16bc

Verifying Checksum ... OK

Uncompressing Kernel Image ... OK

Starting Kernel at = 001c16bc

Linux version 2.6.28.10-ADI-2009R1-svn6864 (test@uclinux81-bf526) (gcc version 4.1.2 (ADI svn)) #14 Mon Jun 29 19:05:40 GMT 2009

console [early_BFuart0] enabled

early printk enabled on early_BFuart0

Board Memory: 64MB

Kernel Managed Memory: 64MB

Memory map:

fixedcode = 0x00000400-0x00000490

text = 0x00001000-0x0012df80

rodata = 0x0012df80-0x0018e0bc

bss = 0x0018f000-0x0019ff20

data = 0x0019ff20-0x001b4000

stack = 0x001b2000-0x001b4000

init = 0x001b4000-0x00793000

available = 0x00793000-0x03eff000

DMA Zone = 0x03f00000-0x04000000

Hardware Trace Active and Enabled

Boot Mode: 1

Compiled for ADSP-BF526 Rev 0.0

Warning: Compiled for Rev 0, but running on Rev 65535

Warning: Unsupported Chip Revision ADSP-BF526 Rev 0.65535 detected

Blackfin Linux support by http://blackfin.uclinux.org/

Processor Speed: 600 MHz core clock and 50 MHz System Clock

NOMPU: setting up cplb tables

Instruction Cache Enabled for CPU0

Data Cache Enabled for CPU0 (write-back)

Built 1 zonelists in Zone order, mobility grouping off. Total pages: 16001

Kernel command line: root=/dev/mtdblock0 rw clkin_hz=25000000 earlyprintk=serial,uart1,57600 console=ttyBF0,57600

Configuring Blackfin Priority Driven Interrupts

PID hash table entries: 256 (order: 8, 1024 bytes)

console handover: boot [early_BFuart0] -> real [ttyBF0]

Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)

Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)

Memory available: 56184k/65536k RAM, (6012k init code, 1203k kernel code, 537k data, 1024k dma, 572k reserved)

Calibrating delay loop... 1196.03 BogoMIPS (lpj=2392064)

Security Framework initialized

Mount-cache hash table entries: 512

Blackfin Scratchpad data SRAM: 4 KB

Blackfin L1 Data A SRAM: 16 KB (15 KB free)

Blackfin L1 Data B SRAM: 16 KB (16 KB free)

Blackfin L1 Instruction SRAM: 48 KB (42 KB free)

net_namespace: 288 bytes

NET: Registered protocol family 16

Blackfin DMA Controller

ezbrd_init(): registering device resources

NULL pointer access

Kernel OOPS in progress

Deferred Exception context

CURRENT PROCESS:

COMM=khelper PID=6

CPU = 0

invalid mm

return address: [0x0000d7b2]; contents of:

0x0000d790: 2002 c803 1800 9202 9c02 9202 ac7a 9357

0x0000d7a0: e539 0078 e53a 008c b0b8 e639 00ac e639

0x0000d7b0: 00a9 [a049] e410 0050 0981 116d 0000 61fa

0x0000d7c0: 0031 0042 6203 9108 5459 6408 0c01 9308

ADSP-BF526-0.0(Detected 0.65535) 600(MHz CCLK) 50(MHz SCLK) (mpu off)

Linux version 2.6.28.10-ADI-2009R1-svn6864

Built with gcc version 4.1.2 (ADI svn)

SEQUENCER STATUS: Not tainted

SEQSTAT: 00060027 IPEND: 8030 SYSCFG: 0006

EXCAUSE : 0x27

interrupts disabled

physical IVG5 asserted : <0xffa00b90> { _evt_ivhw + 0x0 }

physical IVG15 asserted : <0xffa00de0> { _evt_system_call + 0x0 }

logical irq 6 mapped : <0xffa0032c> { _timer_interrupt + 0x0 }

RETE: <0x00000000> /* Maybe null pointer? */

RETN: <0x0082ddd4> /* kernel dynamic memory */

RETX: <0x00000480> /* Maybe fixed code section */

RETS: <0x0000d77a> { _copy_process + 0xbe }

PC : <0x0000d7b2> { _copy_process + 0xf6 }

DCPLB_FAULT_ADDR: <0xef000014> /* kernel dynamic memory */

ICPLB_FAULT_ADDR: <0x00003e50> { _show_regs + 0x94 }

PROCESSOR STATE:

R0 : 00000002 R1 : 00000000 R2 : 00000000 R3 : 00000000

R4 : 00000000 R5 : 00804111 R6 : 0082c000 R7 : 0082e000

P0 : 0082e03c P1 : ffffffff P2 : 00826520 P3 : 0082abe0

P4 : 00194a6c P5 : 0082a900 FP : 0082a900 SP : 0082dcf8

LB0: 00083090 LT0: 00083090 LC0: 00000000

LB1: 0000d792 LT1: 0000d792 LC1: 00000000

B0 : 00000000 L0 : 00000000 M0 : 00000000 I0 : 0082c03c

B1 : 00000000 L1 : 00000000 M1 : 00000000 I1 : 00000001

B2 : 00000000 L2 : 00000000 M2 : 00000000 I2 : 0000001f

B3 : 00000000 L3 : 00000000 M3 : 00000000 I3 : 00000000

A0.w: 003d08ba A0.x: 00000000 A1.w: 00000934 A1.x: 00000000

USP : 00000000 ASTAT: 00003025

Hardware Trace:

0 Target : <0x00004d50> { _trap_c + 0x0 }

Source : <0xffa005ea> { _exception_to_level5 + 0x9e } CALL pcrel

1 Target : <0xffa0054c> { _exception_to_level5 + 0x0 }

Source : <0xffa0042c> { _bfin_return_from_exception + 0x18 } RTX

2 Target : <0xffa00414> { _bfin_return_from_exception + 0x0 }

Source : <0xffa004a2> { _ex_trap_c + 0x46 } JUMP.S

3 Target : <0xffa0045c> { _ex_trap_c + 0x0 }

Source : <0xffa006b4> { _trap + 0x58 } JUMP (P4)

4 Target : <0xffa0065c> { _trap + 0x0 }

Source : <0x0000d7ae> { _copy_process + 0xf2 } 0xe639

5 Target : <0x0000d77a> { _copy_process + 0xbe }

Source : <0x0007fb4e> { _prop_local_init_single + 0xa } RTS

6 Target : <0x0007fb44> { _prop_local_init_single + 0x0 }

Source : <0x0000d776> { _copy_process + 0xba } CALL pcrel

7 Target : <0x0000d768> { _copy_process + 0xac }

Source : <0x0000d23e> { _arch_dup_task_struct + 0x1a } RTS

8 Target : <0x0000d224> { _arch_dup_task_struct + 0x0 }

Source : <0x0000d766> { _copy_process + 0xaa } CALL (P2)

9 Target : <0x0000d754> { _copy_process + 0x98 }

Source : <0x00030696> { ___get_free_pages + 0x3a } RTS

10 Target : <0x0003067a> { ___get_free_pages + 0x1e }

Source : <0x00030562> { ___alloc_pages_internal + 0x1c6 } RTS

11 Target : <0x00030556> { ___alloc_pages_internal + 0x1ba }

Source : <0x00030404> { ___alloc_pages_internal + 0x68 } IF !CC JUMP

12 Target : <0x00030400> { ___alloc_pages_internal + 0x64 }

Source : <0x000302a2> { _get_page_from_freelist + 0x256 } RTS

13 Target : <0x00030298> { _get_page_from_freelist + 0x24c }

Source : <0x00030332> { _get_page_from_freelist + 0x2e6 } IF CC JUMP

14 Target : <0x0003032c> { _get_page_from_freelist + 0x2e0 }

Source : <0x00030296> { _get_page_from_freelist + 0x24a } IF CC JUMP

15 Target : <0x00030290> { _get_page_from_freelist + 0x244 }

Source : <0x00030254> { _get_page_from_freelist + 0x208 } IF CC JUMP

Kernel Stack

Stack info:

SP: [0x0082df50] <0x0082df50> /* kernel dynamic memory */

FP: (0x0082df74)

Memory from 0x0082df50 to 0082e000

0082df50:[ffffffff] 00000006 <0001b338> 03ef7720 00000000 0082dfb8 00000000 0082abe0

0082df70: 0019ff20 (00000000)<0001b7dc> 03ef7720 001a1544 0082c000 00000000 <0001c166>

0082df90: 03efea40 00000000 <0001c14a> 03efea40 00000000 00000000 03efea48 0000ffff

0082dfb0: 0082c000 0082c000 00000000 0082abe0 0001e934 0082dfc4 0082dfc4 <0001e530>

0082dfd0: 0001c0f0 03efea40 00000000 00000000 00000000 00000000 <0000145e> 00000000

0082dff0: 00000000 00000000 ffffffff 00000006 0082a900

Return addresses in stack:

address : <0x0001b338> { ___call_usermodehelper + 0x24 }

frame 1 : <0x0001b7dc> { _run_workqueue + 0x7c }

address : <0x0001c166> { _worker_thread + 0x76 }

address : <0x0001c14a> { _worker_thread + 0x5a }

address : <0x0001e530> { _kthread + 0x50 }

address : <0x0000145e> { _kernel_thread_helper + 0x6 }

Modules linked in:

Kernel panic - not syncing: Kernel exception

Follow-ups

--- Mike Frysinger 2009-06-29 23:43:44

the whole point of the BF526 line is lower power which means lower clock speeds.

the datasheets shows that the BF526 has a max CCLK of 400mhz and a max SCLK of

80mhz.

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