config_fallbacks: Add a default entry for CONFIG_SYS_PBSIZE

Entering the maximum number of characters defined by CONFIG_SYS_CBSIZE into
the console and hitting enter afterwards, causes a hang in the system because
CONFIG_SYS_PBSIZE is not capable of storing the characters of the error message:
"Unknown command '' - try 'help'".

Provide a default size for CONFIG_SYS_PBSIZE so that it can store the error
message and allows the error message to be printed correctly with no hang.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>

diff --git a/include/config_fallbacks.h b/include/config_fallbacks.h
index 7d8daa2b8e5332f421b9bb616812d494927f1c71..508db5626bbeb9fa533ce2ee0ee3731e664659d5 100644 (file)
--- a/include/config_fallbacks.h
+++ b/include/config_fallbacks.h
@@ -79,6 +79,10 @@
 #define CONFIG_SYS_PROMPT      "=> "
 #endif
 
+#ifndef CONFIG_SYS_PBSIZE
+#define CONFIG_SYS_PBSIZE      (CONFIG_SYS_CBSIZE + 128)
+#endif
+
 #ifndef CONFIG_FIT_SIGNATURE
 #define CONFIG_IMAGE_FORMAT_LEGACY
 #endif