[#7041] Blackfin JTAG console: dirty output with bfin_jtag_comm

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[#7041] Blackfin JTAG console: dirty output with bfin_jtag_comm

Submitted By: Matteo Smania

Open Date

2012-04-03 03:30:26     Close Date

2013-07-03 04:04:12

Priority:

Medium     Assignee:

Nobody

Board:

EZBRD     Silicon Revision:

0.2

Resolution:

N/A     Fixed In Release:

N/A

Processor:

BF518     

Host Operating System:

Ubuntu Linux 10.04

toolchain rev.:

2010R1-RC4     kernel rev.:

2010R1

State:

Closed     Found In Release:

2010R1-RC4

Is this bug repeatable?:

yes     

Summary: Blackfin JTAG console: dirty output with bfin_jtag_comm

Details:

 

Hi all,

 

thanks to Jiez's help I've a JTAG console up&running. In U-boot environment it's working well, but not in uClinux environment: when the sistem boots up I'm able to see a clear kernel output, but when I try to insert any command at uClinux prompt the console shows garbage characters; commands like "cd","ls" (a few characters) are executed, but commands like "reboot" (more characters) give in output "sh: can't execute 'ot': No such file or directory".

 

I'm using these toolset:

GNU Toolchain: 2010R1-RC4

U-boot: 2010.06 (ADI-2010R1-RC2)

uClinux-dist: 2010R1, Nov. 17, 2010

 

I'm using bfin_jtag_comm kernel driver compiled as static in uClinux Kernel, with "console=ttyBFJC0" u-boot->bootargs parameter; I've tried jtag console connection with netcat, telnet and jtagconsole helper binary, with the same "dirty and incorrect output" result.

 

May you help me? Thanks in advance.

 

Follow-ups

 

--- Mike Frysinger                                           2012-04-04 01:41:31

You should upgrade to the latest release first as it has a rewritten driver

stack.  The 2010r1 code has known bugs.

 

--- Mingquan Pan                                             2013-07-03 05:07:38

outdated.close.

 

 

 

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