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mb/google/fizz: Enable PCIe port 11, 12 

Our CFM daughter card would like to use individual PCIe lanes for two
different devices on the card.

dlaurie@ has reconfigured PCIe port 9-12 from 1x4 to 1x2 + 2x1 on b2b
connector on fizz to meet the requirement:
https://chrome-internal-review.googlesource.com/571936
We also need to enable the ports on device tree.

BUG=b:72523836
TEST=none
BRANCH=fizz

Change-Id: Icded9850d833752680e0174b6c476e657817b319
Reviewed-on: https://chromium-review.googlesource.com/923867
Commit-Ready: Zhongze Hu <frankhu@google.com>
Tested-by: Zhongze Hu <frankhu@google.com>
Reviewed-by: Shelley Chen <shchen@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/924860
Commit-Queue: Shelley Chen <shchen@chromium.org>
Tested-by: Shelley Chen <shchen@chromium.org>
Signed-off-by: Zhongze Hu <frankhu@chromium.org>
Reviewed-on: https://review.coreboot.org/23845
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Shelley Chen <shchen@google.com>
This commit is contained in:
Zhongze Hu 2018-02-16 00:53:02 -08:00 committed by Shelley Chen
parent 4ecd42f9b5
commit 12f656ced7
1 changed files with 28 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
src/mainboard/google/fizz/devicetree.cb
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@ -228,6 +228,32 @@ chip soc/intel/skylake
# RP 9 uses uses CLK SRC 2
register "PcieRpClkSrcNumber[8]" = "2"
# Enable Root port 11 for BtoB.
register "PcieRpEnable[10]" = "1"
# Enable CLKREQ#
register "PcieRpClkReqSupport[10]" = "1"
# RP 11 uses SRCCLKREQ2#
register "PcieRpClkReqNumber[10]" = "2"
# RP 11, Enable Advanced Error Reporting
register "PcieRpAdvancedErrorReporting[10]" = "1"
# RP 11, Enable Latency Tolerance Reporting Mechanism
register "PcieRpLtrEnable[10]" = "1"
# RP 11 uses uses CLK SRC 2
register "PcieRpClkSrcNumber[10]" = "2"
# Enable Root port 12 for BtoB.
register "PcieRpEnable[11]" = "1"
# Enable CLKREQ#
register "PcieRpClkReqSupport[11]" = "1"
# RP 12 uses SRCCLKREQ2#
register "PcieRpClkReqNumber[11]" = "2"
# RP 12, Enable Advanced Error Reporting
register "PcieRpAdvancedErrorReporting[11]" = "1"
# RP 12, Enable Latency Tolerance Reporting Mechanism
register "PcieRpLtrEnable[11]" = "1"
# RP 12 uses uses CLK SRC 2
register "PcieRpClkSrcNumber[11]" = "2"
register "usb2_ports[0]" = "USB2_PORT_LONG(OC0)" # Type-C
register "usb2_ports[1]" = "USB2_PORT_MID(OC3)" # Type-A Rear
register "usb2_ports[2]" = "USB2_PORT_MID(OC2)" # Type-A Front
@ -351,8 +377,8 @@ chip soc/intel/skylake
end
end # PCI Express Port 9 for BtoB
device pci 1d.1 off end # PCI Express Port 10
device pci 1d.2 off end # PCI Express Port 11
device pci 1d.3 off end # PCI Express Port 12
device pci 1d.2 on end # PCI Express Port 11
device pci 1d.3 on end # PCI Express Port 12
device pci 1e.0 on end # UART #0
device pci 1e.1 off end # UART #1
device pci 1e.2 on