mb/google/eve: Enable AER and LTR

AER and LTR must be enabled individually on ports that need it,
in this case it should be enabled for WiFi and NVMe.

BUG=b:65457528
TEST=Wifi team verified that the performance is better with these changes.

Change-Id: I0d688fe07a1f3117c1ca617c2ce78e0d024a3510
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Original-Change-Id: Ib059517fa782ccc18ba5ef1f76058a1898b7bf7a
Original-Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/671211
Original-Reviewed-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@intel.com>
Original-Reviewed-by: Duncan Laurie <dlaurie@google.com>
Original-Commit-Queue: Duncan Laurie <dlaurie@google.com>
Original-Tested-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/22447
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/eve/devicetree.cb b/src/mainboard/google/eve/devicetree.cb
index 069c2b0..3b87fd1 100644
--- a/src/mainboard/google/eve/devicetree.cb
+++ b/src/mainboard/google/eve/devicetree.cb
@@ -143,11 +143,15 @@
 	register "PcieRpEnable[0]" = "1"
 	register "PcieRpClkReqSupport[0]" = "1"
 	register "PcieRpClkReqNumber[0]" = "1"
+	register "PcieRpAdvancedErrorReporting[0]" = "1"
+	register "PcieRpLtrEnable[0]" = "1"
 
 	# Enable Root port 5 with SRCCLKREQ4#
 	register "PcieRpEnable[4]" = "1"
 	register "PcieRpClkReqSupport[4]" = "1"
 	register "PcieRpClkReqNumber[4]" = "4"
+	register "PcieRpAdvancedErrorReporting[4]" = "1"
+	register "PcieRpLtrEnable[4]" = "1"
 
 	register "usb2_ports[0]" = "USB2_PORT_LONG(OC0)"	# Type-C Port 1
 	register "usb2_ports[1]" = "USB2_PORT_FLEX(OC_SKIP)"	# Camera