From d31a207e358f27e4f271ba0debbec8799fe5d76a Mon Sep 17 00:00:00 2001
From: Matt Borgerson <contact@mborgerson.com>
Date: Mon, 4 Jan 2021 01:08:17 -0700
Subject: [PATCH] i8254: Update base freq to more closely match Xbox

---
 include/hw/timer/i8254.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/include/hw/timer/i8254.h b/include/hw/timer/i8254.h
index e75b4a5a08..8fdcd948e0 100644
--- a/include/hw/timer/i8254.h
+++ b/include/hw/timer/i8254.h
@@ -29,7 +29,15 @@
 #include "hw/isa/isa.h"
 #include "qapi/error.h"
 
+#ifdef XBOX
+/* FIXME: As 8254 code is written, this cannot be exactly 1125000, as counter
+ * will always trigger w/ how Xbox software configures PIT. Use a small delta
+ * for now.
+ */
+#define PIT_FREQ 1125001
+#else
 #define PIT_FREQ 1193182
+#endif
 
 typedef struct PITChannelInfo {
     int gate;