powerpc/512x: fix the hanged dma transfer issue

Browse source

Current code clears interrupt active status _after_ submitting new
transfers. This leaves a possibility of clearing the interrupt for this
new transfer (if it is triggered fast enough) and thus lose this
interrupt. We want to clear interrupt active status _before_ new
transfers is submitted and for current channel only.

Signed-off-by: Ilya Yanok <yanok@emcraft.com>
Acked-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

...

This commit is contained in:

Ilya Yanok 2010-10-27 01:52:56 +02:00 • committed by Grant Likely

parent 6504cf3412

commit 2862559e8a

1 changed files with 3 additions and 6 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

9

drivers/dma/mpc512x_dma.c

View file