[U-Boot] u-boot - timestamp

[TigerLiu at via-alliance.com]

Hi, Denk:
> [1] ftp://ftp.denx.de/pub/tools/time_log
How to produce the below format's serial terminal log message?
Which marco definition needed to be turn on when compiling u-boot code?
----------------------------
#  6.357 ## Booting image at 00200000 ...  
#  6.357    Image Name:   Linux-2.4.4  
#  6.367    Created:      2004-03-12  19:07:58 UTC  
#  6.367    Image Type:   PowerPC Linux Kernel Image (gzip compressed)  
#  6.367    Data Size:    711745 Bytes = 695.1 kB  
#  6.377    Load Address: 00000000  
#  6.377    Entry Point:  00000000  
#  6.687    Verifying Checksum ... OK  
#  8.438    Uncompressing Kernel Image ... OK  
#  9.238 Linux version 2.4.4 (wd at atlas.denx.de) (gcc version 3.2.2
20030217 (Yellow Dog Linux 3.0 3.2.2-2a_1)) #2 Fri Mar 12 20:07:49 MET
2004  
#  0.000 I2C uCode patch installed  
#  0.010 MPC823 LCD memory at C01CE000  
#  0.010 On node 0 totalpages: 4096  
#  0.011 zone(0): 4096 pages.  

Best regards,