Blackfin: fix early_dma_memcpy() handling of busy channels

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The early logic to locate a free DMA channel and then set it up was broken
in a few ways that only manifested itself when we needed to set up more
than 2 on chip SRAM regions (most board defaults setup 1 or 2).  First, we
checked the wrong status register (the destination gets updated, not the
source) and second, we did the ssync before rather than after resetting a
DMA config register.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

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This commit is contained in:

Mike Frysinger 2009-06-29 22:45:50 +00:00

parent fb4b5d3a37

commit 532f07ca04

1 changed files with 14 additions and 15 deletions

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arch/blackfin/kernel/bfin_dma_5xx.c

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