[#7041] Blackfin JTAG console: dirty output with bfin_jtag_comm
Submitted By: Matteo Smania
2012-04-03 03:30:26 Close Date
EZBRD Silicon Revision:
N/A Fixed In Release:
Host Operating System:
Ubuntu Linux 10.04
2010R1-RC4 kernel rev.:
Closed Found In Release:
Is this bug repeatable?:
Summary: Blackfin JTAG console: dirty output with bfin_jtag_comm
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.
--- 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
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