diff options
| author | Duncan Laurie <dlaurie@chromium.org> | 2013-04-26 10:35:19 -0700 |
|---|---|---|
| committer | Alexandru Gagniuc <mr.nuke.me@gmail.com> | 2013-11-24 16:04:12 +0100 |
| commit | e1e87e0ed6280f168abd92edcd692aec4ead8fe8 (patch) | |
| tree | 0545c568254811a9b8204ebd880539a689ae1fe5 /src/southbridge | |
| parent | f24262d01822bd8634e44b5aab19dafe7e04ae72 (diff) | |
haswell: Configure PCH power sharing for ULT
This reads PCH power levels via PCODE mailbox and writes the
values into the PMSYNC registers as indicated in the BWG.
Change-Id: Iddcdef9b7deb6365f874f629599d1f7376c9a190
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/49329
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/4143
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Diffstat (limited to 'src/southbridge')
| -rw-r--r-- | src/southbridge/intel/lynxpoint/finalize.c | 3 | ||||
| -rw-r--r-- | src/southbridge/intel/lynxpoint/pch.h | 2 |
2 files changed, 5 insertions, 0 deletions
diff --git a/src/southbridge/intel/lynxpoint/finalize.c b/src/southbridge/intel/lynxpoint/finalize.c index d9bc22531c..d81f90ecdb 100644 --- a/src/southbridge/intel/lynxpoint/finalize.c +++ b/src/southbridge/intel/lynxpoint/finalize.c @@ -54,6 +54,9 @@ void intel_pch_finalize_smm(void) /* GEN_PMCON Lock */ pci_or_config8(PCH_LPC_DEV, 0xa6, (1 << 1) | (1 << 2)); + /* PMSYNC */ + RCBA32_OR(PMSYNC_CONFIG, (1 << 31)); + /* R/WO registers */ RCBA32(0x21a4) = RCBA32(0x21a4); pci_write_config32(PCI_DEV(0, 27, 0), 0x74, diff --git a/src/southbridge/intel/lynxpoint/pch.h b/src/southbridge/intel/lynxpoint/pch.h index 4bdb9268e9..58b07d16cc 100644 --- a/src/southbridge/intel/lynxpoint/pch.h +++ b/src/southbridge/intel/lynxpoint/pch.h @@ -574,6 +574,8 @@ void set_gpio(int gpio_num, int value); #define D19IR 0x3168 /* 16bit */ #define ACPIIRQEN 0x31e0 /* 32bit */ #define OIC 0x31fe /* 16bit */ +#define PMSYNC_CONFIG 0x33c4 /* 32bit */ +#define PMSYNC_CONFIG2 0x33cc /* 32bit */ #define SOFT_RESET_CTRL 0x38f4 #define SOFT_RESET_DATA 0x38f8 |