enable dual rng on VIA C7

[Udo van den Heuvel]

Hello,

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

Kind regards,
Udo

--- 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)