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3 Commits

Author SHA1 Message Date
Vivi Li
63cb0f4eb2 Blackfin: bump up default JTAG console timeout 
The debug tools that interface with the other side of the JTAG console
got much slower when generalizing things, so bump up the default timeout
value on the U-Boot side to cope.  Hopefully at some point we can improve
the debug tools to speed things back up.

Signed-off-by: Vivi Li <vivi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
 2009-06-15 13:30:08 -04:00
Mike Frysinger
e82b762f29 Blackfin: fix jtag console tstc 
The jtag tstc operation was checking the hardware to see if data is
available from it (which is fine for the jtag getc operation), but the
higher layers need to know whether any data is available.  Since we have
to read up to 4 bytes at a time from the hardware, the higher layers need
to know they can consume the cached bytes as well.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
 2009-03-23 15:14:52 -04:00
Mike Frysinger
36ea8e9ad1 Blackfin: support console-over-JTAG 
The Blackfin JTAG has the ability to pass data via a back-channel without
halting the processor.  Utilize that channel to emulate a console.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
 2009-01-28 13:26:15 -05:00