log: Add an implementation of logging
Add the logging header file and implementation with some configuration
options to control it.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/include/asm-generic/global_data.h b/include/asm-generic/global_data.h
index 79197ac..77755db 100644
--- a/include/asm-generic/global_data.h
+++ b/include/asm-generic/global_data.h
@@ -114,6 +114,11 @@
struct bootstage_data *bootstage; /* Bootstage information */
struct bootstage_data *new_bootstage; /* Relocated bootstage info */
#endif
+#ifdef CONFIG_LOG
+ int log_drop_count; /* Number of dropped log messages */
+ int default_log_level; /* For devices with no filters */
+ struct list_head log_head; /* List of struct log_device */
+#endif
} gd_t;
#endif