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| author | Duncan Laurie <dlaurie@chromium.org> | 2013-03-22 11:24:45 -0700 |
|---|---|---|
| committer | Ronald G. Minnich <rminnich@gmail.com> | 2013-04-01 23:27:21 +0200 |
| commit | a2d6a40480c97043e9126c0fbc9e1a79db22d408 (patch) | |
| tree | fe62358015161ca7c301276bd1e78d31d467b4ca /src/southbridge/intel/lynxpoint/lpc.c | |
| parent | 0ce2b4368286df8267bfb290b206671825981248 (diff) | |
| download | coreboot-a2d6a40480c97043e9126c0fbc9e1a79db22d408.tar.xz | |
lynxpoint: Fix LP clock gating setup for LPC
This bit offset is incorrect and should only be set based
on another bit in a different register.
Change-Id: I6037534236e3a4a5d15e15011ed9b5040b435eaf
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/2973
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'src/southbridge/intel/lynxpoint/lpc.c')
| -rw-r--r-- | src/southbridge/intel/lynxpoint/lpc.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/southbridge/intel/lynxpoint/lpc.c b/src/southbridge/intel/lynxpoint/lpc.c index 6b01489fad..2864876a83 100644 --- a/src/southbridge/intel/lynxpoint/lpc.c +++ b/src/southbridge/intel/lynxpoint/lpc.c @@ -458,7 +458,10 @@ static void enable_lp_clock_gating(device_t dev) RCBA32_OR(0x900, 0x0000031f); reg32 = RCBA32(CG); - reg32 |= (1 << 31); // LPC Dynamic + if (RCBA32(0x3454) & (1 << 4)) + reg32 &= ~(1 << 29); // LPC Dynamic + else + reg32 |= (1 << 29); // LPC Dynamic reg32 |= (1 << 30); // LP LPC reg32 |= (1 << 28); // GPIO Dynamic reg32 |= (1 << 27); // HPET Dynamic |