Message-ID: <47374EA4.1060009@xs4all.nl>
Date: Sun, 11 Nov 2007 19:49:08 +0100
From: Udo van den Heuvel <udovdh@xs4all.nl>
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To: linux-kernel@vger.kernel.org
Subject: enable dual rng on VIA C7
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Hello,

Any reason why the second rng on the VIA C7 CPU is not enabled?

Kind regards,
Udo

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--- old/drivers/char/hw_random/via-rng.c	2007-11-11 19:39:49.000000000 +0100
+++ new/drivers/char/hw_random/via-rng.c	2007-11-11 19:40:41.000000000 +0100
@@ -41,6 +41,7 @@
 	VIA_STRFILT_ENABLE	= (1 << 14),
 	VIA_RAWBITS_ENABLE	= (1 << 13),
 	VIA_RNG_ENABLE		= (1 << 6),
+	VIA_RNG_DUAL            = (1 << 9),
 	VIA_XSTORE_CNT_MASK	= 0x0F,
 
 	VIA_RNG_CHUNK_8		= 0x00,	/* 64 rand bits, 64 stored bits */
@@ -128,6 +129,7 @@
 	lo &= ~(0x7f << VIA_STRFILT_CNT_SHIFT);
 	lo &= ~VIA_XSTORE_CNT_MASK;
 	lo &= ~(VIA_STRFILT_ENABLE | VIA_STRFILT_FAIL | VIA_RAWBITS_ENABLE);
+	lo |= VIA_RNG_DUAL;
 	lo |= VIA_RNG_ENABLE;
 
 	if (lo != old_lo)

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