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-rw-r--r--include/bootstage.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/bootstage.h b/include/bootstage.h
index a589be6316..6ee923c2eb 100644
--- a/include/bootstage.h
+++ b/include/bootstage.h
@@ -2,6 +2,7 @@
* This file implements recording of each stage of the boot process. It is
* intended to implement timing of each stage, reporting this information
* to the user and passing it to the OS for logging / further analysis.
+ * Note that it requires timer_get_boot_us() to be defined by the board
*
* Copyright (c) 2011 The Chromium OS Authors.
*
@@ -209,7 +210,7 @@ enum bootstage_id {
/*
* Return the time since boot in microseconds, This is needed for bootstage
* and should be defined in CPU- or board-specific code. If undefined then
- * millisecond resolution will be used (the standard get_timer()).
+ * you will get a link error.
*/
ulong timer_get_boot_us(void);