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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>
This commit is contained in:
Shamile Khan 2018-03-19 17:03:48 -07:00 committed by Patrick Georgi
parent 70f051f236
commit 25c1781cba
1 changed files with 18 additions and 0 deletions
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18
src/mainboard/google/octopus/variants/baseboard/devicetree.cb
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@ -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"