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(parent: fb4b5d3) | patch
Blackfin: fix early_dma_memcpy() handling of busy channels
authorMike Frysinger <vapier@gentoo.org>
Mon, 29 Jun 2009 22:45:50 +0000 (22:45 +0000)
committerMike Frysinger <vapier@gentoo.org>
Thu, 16 Jul 2009 05:52:26 +0000 (01:52 -0400)
commit532f07ca04c6f8ab0555b00cf5d42dc6f72b802f
tree6a449019028efc5518da6abd3e18437ca60ade6ctree | snapshot (tar.gz zip)
parentfb4b5d3a379824d94fd71fc1aa78e9dbcb15b948commit | diff
Blackfin: fix early_dma_memcpy() handling of busy channels

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>
arch/blackfin/kernel/bfin_dma_5xx.c diff | blob | blame | history