From 336420348eed277f8640fc9c19aa463c2848650d Mon Sep 17 00:00:00 2001
From: Iru Cai <mytbk920423@gmail.com>
Date: Tue, 11 Jun 2019 14:24:43 +0800
Subject: haswell: reinitialize EHCI debug hardware after raminit

Tested on Lenovo ThinkPad T440p.

Change-Id: I54b0c9dbb64819f0f502783b632470d27ed0b2b1
Signed-off-by: Iru Cai <mytbk920423@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34358
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
---
 src/northbridge/intel/haswell/raminit.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/northbridge/intel/haswell/raminit.c b/src/northbridge/intel/haswell/raminit.c
index 9beb23cc8e..2fdbe07c8d 100644
--- a/src/northbridge/intel/haswell/raminit.c
+++ b/src/northbridge/intel/haswell/raminit.c
@@ -14,6 +14,7 @@
  */
 
 #include <console/console.h>
+#include <console/usb.h>
 #include <string.h>
 #include <cbmem.h>
 #include <arch/cbfs.h>
@@ -155,6 +156,11 @@ void sdram_initialize(struct pei_data *pei_data)
 		asm volatile (
 			      "call *%%ecx\n\t"
 			      :"=a" (rv) : "c" (entry), "a" (pei_data));
+
+		/* mrc.bin reconfigures USB, so reinit it to have debug */
+		if (CONFIG(USBDEBUG_IN_PRE_RAM))
+			usbdebug_hw_init(true);
+
 		if (rv) {
 			switch (rv) {
 			case -1:
-- 
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