From: Mike Frysinger <vapier@gentoo.org>
Date: Mon, 29 Jun 2009 22:45:50 +0000 (+0000)
Subject: Blackfin: fix early_dma_memcpy() handling of busy channels
X-Git-Tag: v2.6.31-rc4~22^2~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=532f07ca04c6f8ab0555b00cf5d42dc6f72b802f;p=pandora-kernel.git

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>
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