From 8eb7865613cffd0616d0dc2f8708203d0f8fab4c Mon Sep 17 00:00:00 2001
From: Timo Teras <timo.teras@iki.fi>
Date: Tue, 26 May 2009 08:41:56 +0300
Subject: init: option to turn off dma

If some devices have broken DMA the boot sequence can get annoyingly
long when "loading boot drivers". Allow dma to be turned off.
---
 initramfs-init.in | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/initramfs-init.in b/initramfs-init.in
index b177987..572d0e2 100755
--- a/initramfs-init.in
+++ b/initramfs-init.in
@@ -119,6 +119,11 @@ if [ -n "$KOPT_chart" ]; then
 	eend 0
 fi
 
+# dma can be problematic
+if [ -n "$KOPT_nodma" ]; then
+	modprobe libata dma=0
+fi
+
 ALPINE_DEV=${KOPT_alpine_dev%%:*}
 ALPINE_DEV_FS=${KOPT_alpine_dev##*:}
 if [ "$ALPINE_DEV_FS" = "$ALPINE_DEV" ]; then
-- 
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