diff options
| author | Subrata Banik <subrata.banik@intel.com> | 2017-07-21 10:08:25 +0530 |
|---|---|---|
| committer | Aaron Durbin <adurbin@chromium.org> | 2017-07-21 14:46:13 +0000 |
| commit | c3198543b690fbdeda0f1e1ffaf78048fe765ec0 (patch) | |
| tree | e290487cbf5c37ec549d4baf5dc33a1141a48415 /src/soc/intel/skylake | |
| parent | 8e39009c57dc92e6970a812ec82a2cee4cb6ced5 (diff) | |
soc/intel/skylake: Perform LPC offset read after lockdown operation
This patch is to provide an additional read LPC pci offset register
BIOS_CONTROL (BC) - offset 0xDC to ensure that the last write is
successful.
Change-Id: I308c0622d348fc96c410a04ab4081bb6af98e874
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/20678
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/soc/intel/skylake')
| -rw-r--r-- | src/soc/intel/skylake/finalize.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/soc/intel/skylake/finalize.c b/src/soc/intel/skylake/finalize.c index 171d92e9cd..34f26eb8cb 100644 --- a/src/soc/intel/skylake/finalize.c +++ b/src/soc/intel/skylake/finalize.c @@ -185,6 +185,9 @@ static void soc_lockdown(void) pci_read_config8(PCH_DEV_LPC, BIOS_CNTL) | LPC_BC_LE); + /* Ensure an additional read back after performing lock down */ + pci_read_config8(PCH_DEV_LPC, BIOS_CNTL); + fast_spi_set_lock_enable(); } @@ -194,6 +197,9 @@ static void soc_lockdown(void) pci_read_config8(PCH_DEV_LPC, BIOS_CNTL) | LPC_BC_EISS); + /* Ensure an additional read back after performing lock down */ + pci_read_config8(PCH_DEV_LPC, BIOS_CNTL); + fast_spi_set_eiss(); } } |