[PATCH 002/002] de2104x: support for systems lacking cache coherence

[Risto Suominen]

Here is a patch that helped me to get my de2104x NIC working on my
PowerMac 5500. As an interesting side effect, it also made my mesh
module crash.

Background can be found here: http://www.spinics.net/lists/netdev/msg88488.html

Risto

Allow setting NOT_COHERENT_CACHE explicitly.

Signed-off-by: Risto Suominen <Risto.Suominen at gmail.com>
---
The testing is done on kernel version 2.6.24.

--- a/arch/powerpc/platforms/powermac/Kconfig.org	2008-01-25
00:58:37.000000000 +0200
+++ b/arch/powerpc/platforms/powermac/Kconfig	2009-02-10
17:44:24.000000000 +0200
@@ -18,4 +18,10 @@ config PPC_PMAC64
 	select PPC_970_NAP
 	default y

-
+config NOT_COHERENT_CACHE
+	bool "Incoherent cache"
+	default n
+	help
+	  Setting this option may be necessary for avoiding cache-related
+	  problems with some network cards on some platforms. An example is
+	  2104x and PowerMac 5500.
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