new commands: uuid and guid - generate random unique identifier

Those commands basis on implementation of random UUID generator version 4
which is described in RFC4122. The same algorithm is used for generation
both ids but string representation is different as below.

char:  0        9    14   19   24         36
       xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
UUID:     be     be   be   be       be
GUID:     le     le   le   be       be

Commands usage:
- uuid [<varname>]
- guid [<varname>]

The result is saved in environment as a "varname" variable if argument is given,
if not then it is printed.

New config:
- CONFIG_CMD_UUID

Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Cc: Stephen Warren <swarren@nvidia.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: trini@ti.com

1 files changed, 1 insertions, 1 deletions

diff --git a/README b/README
index 7cb7c4f626..025386f52c 100644
--- a/README
+++ b/README
@@ -1012,7 +1012,7 @@ The following options need to be configured:
 		CONFIG_CMD_CDP		* Cisco Discover Protocol support
 		CONFIG_CMD_MFSL		* Microblaze FSL support
 		CONFIG_CMD_XIMG		  Load part of Multi Image
-
+		CONFIG_CMD_UUID		* Generate random UUID or GUID string
 
 		EXAMPLE: If you want all functions except of network
 		support you can write: