From 655220ae69b553e600d6225b550f045e9b212638 Mon Sep 17 00:00:00 2001
From: T Michael Turney <mturney@codeaurora.org>
Date: Tue, 22 Oct 2019 06:26:21 -0700
Subject: trogdor: Add mainboard USB support

Change-Id: I126d1d6b582ea95c97ac55784d44d3081aabdae7
Signed-off-by: Sandeep Maheswaram <sanm@codeaurora.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36232
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
---
 src/mainboard/google/trogdor/romstage.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'src/mainboard/google/trogdor/romstage.c')

diff --git a/src/mainboard/google/trogdor/romstage.c b/src/mainboard/google/trogdor/romstage.c
index 718538728c..872798a791 100644
--- a/src/mainboard/google/trogdor/romstage.c
+++ b/src/mainboard/google/trogdor/romstage.c
@@ -14,10 +14,22 @@
  */
 
 #include <arch/stages.h>
+#include <soc/usb.h>
 #include <soc/qclib_common.h>
 
+static void prepare_usb(void)
+{
+	/*
+	 * Do DWC3 core and phy reset. Kick these resets
+	 * off early so they get at least 1ms to settle.
+	 */
+	reset_usb0();
+}
+
 void platform_romstage_main(void)
 {
+	prepare_usb();
+
 	/* QCLib: DDR init & train */
 	qclib_load_and_run();
 }
-- 
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