mb/google/zoombini: Enable NVMe

BUG=b:72120814
BRANCH=master
TEST=none

Change-Id: I64ab38dda78345c1f3d7d3f2bf3cb04c19290ceb
Signed-off-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-on: https://review.coreboot.org/25256
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
diff --git a/src/mainboard/google/zoombini/variants/baseboard/devicetree.cb b/src/mainboard/google/zoombini/variants/baseboard/devicetree.cb
index 44ea0bb..512354e 100644
--- a/src/mainboard/google/zoombini/variants/baseboard/devicetree.cb
+++ b/src/mainboard/google/zoombini/variants/baseboard/devicetree.cb
@@ -51,6 +51,11 @@
 	register "usb3_ports[4]" = "USB3_PORT_DEFAULT(OC0)"
 	register "usb3_ports[5]" = "USB3_PORT_DEFAULT(OC0)"
 
+	# Enable Root port 8 (PCIe port 9) for NVMe
+	register "PcieRpEnable[8]" = "1"
+	register "PcieClkSrcUsage[3]" = "8"
+	register "PcieClkSrcClkReq[3]" = "3"
+
 	device domain 0 on
 		device pci 00.0 on  end # Host Bridge
 		device pci 02.0 on  end # Integrated Graphics Device
@@ -81,7 +86,7 @@
 		device pci 1c.5 off end # PCI Express Port 6
 		device pci 1c.6 off end # PCI Express Port 7
 		device pci 1c.7 off end # PCI Express Port 8
-		device pci 1d.0 off end # PCI Express Port 9
+		device pci 1d.0 on  end # PCI Express Port 9
 		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