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-rw-r--r--hw/i2c/ppc4xx_i2c.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/hw/i2c/ppc4xx_i2c.c b/hw/i2c/ppc4xx_i2c.c
index c0a8e04567..f4c5bc12d3 100644
--- a/hw/i2c/ppc4xx_i2c.c
+++ b/hw/i2c/ppc4xx_i2c.c
@@ -1,6 +1,8 @@
 /*
  * PPC4xx I2C controller emulation
  *
+ * Documentation: PPC405GP User's Manual, Chapter 22. IIC Bus Interface
+ *
  * Copyright (c) 2007 Jocelyn Mayer
  * Copyright (c) 2012 François Revol
  * Copyright (c) 2016-2018 BALATON Zoltan