diff options
| author | Shamile Khan <shamile.khan@intel.com> | 2018-03-19 17:03:48 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2018-03-22 09:01:38 +0000 |
| commit | 25c1781cba16de70b857cd2084a25d47fc3f2c5d (patch) | |
| tree | 799bbec0954637e02300817effdd295cf884f23f /src/mainboard/google/octopus | |
| parent | 70f051f236dd483536681c19ff5d1ba1e6c99034 (diff) | |
mb/google/octopus: Add CLKREQ and de-emphasis settings for PCIe Wi-FI
BUG=b:73292699
BRANCH=None
TEST=Build coreboot for Octopus board.
Change-Id: Ic73ad38ad9a12bec614e530f7f35619246b9f57f
Signed-off-by: Shamile Khan <shamile.khan@intel.com>
Reviewed-on: https://review.coreboot.org/25288
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/mainboard/google/octopus')
| -rw-r--r-- | src/mainboard/google/octopus/variants/baseboard/devicetree.cb | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/mainboard/google/octopus/variants/baseboard/devicetree.cb b/src/mainboard/google/octopus/variants/baseboard/devicetree.cb index 97a13103cf..fb8fe540c9 100644 --- a/src/mainboard/google/octopus/variants/baseboard/devicetree.cb +++ b/src/mainboard/google/octopus/variants/baseboard/devicetree.cb @@ -3,6 +3,24 @@ chip soc/intel/apollolake device lapic 0 on end end + register "pcie_rp_clkreq_pin[0]" = "3" # wifi/bt + # Disable unused clkreq of PCIe root ports + register "pcie_rp_clkreq_pin[1]" = "CLKREQ_DISABLED" + register "pcie_rp_clkreq_pin[2]" = "CLKREQ_DISABLED" + register "pcie_rp_clkreq_pin[3]" = "CLKREQ_DISABLED" + register "pcie_rp_clkreq_pin[4]" = "CLKREQ_DISABLED" + register "pcie_rp_clkreq_pin[5]" = "CLKREQ_DISABLED" + + # Set de-emphasis to disabled for PCIE WiFI (Thunderpeak) + # as it is required for detection + register "pcie_rp_deemphasis_enable[0]" = "0" + # Set de-emphasis to default (enabled) for remaining ports + register "pcie_rp_deemphasis_enable[1]" = "1" + register "pcie_rp_deemphasis_enable[2]" = "1" + register "pcie_rp_deemphasis_enable[3]" = "1" + register "pcie_rp_deemphasis_enable[4]" = "1" + register "pcie_rp_deemphasis_enable[5]" = "1" + # GPIO for PERST_0 (WLAN_PE_RST) register "prt0_gpio" = "GPIO_164" |