[U-Boot] Trying to reduce boot time of U-BOOT zynq-microzed.

[Uzair Zaidi]

I have `zynq-microzed` board.

Here is my log messages of `U-BOOT`.

    [Fri Jun 20 12:07:25.468 2014] U-Boot 2013.07 (Jun 20 2014 - 11:58:49)
    [Fri Jun 20 12:07:25.468 2014]
    [Fri Jun 20 12:07:25.468 2014] Memory: ECC disabled
    [Fri Jun 20 12:07:25.468 2014] DRAM:  1 GiB
    [Fri Jun 20 12:07:25.484 2014] SF: Detected S25FL129P_64K/S25FL128S_64K
with page size 64 KiB, total 16 MiB
    [Fri Jun 20 12:07:25.515 2014] *** Warning - bad CRC, using default
environment
    [Fri Jun 20 12:07:25.515 2014]
    [Fri Jun 20 12:07:25.515 2014] In:    serial
    [Fri Jun 20 12:07:25.515 2014] Out:   serial
    [Fri Jun 20 12:07:25.515 2014] Err:   serial
    [Fri Jun 20 12:07:25.515 2014]
    [Fri Jun 20 12:07:25.515 2014]
    [Fri Jun 20 12:07:25.515 2014] SF: Detected S25FL129P_64K/S25FL128S_64K
with page size 64 KiB, total 16 MiB
    [Fri Jun 20 12:07:25.687 2014] SF: 983040 bytes @ 0x520000 Read: OK
    [Fri Jun 20 12:07:25.687 2014] ## Loading kernel from FIT Image at
01000000 ...
    [Fri Jun 20 12:07:25.687 2014]    Using 'conf at 1' configuration
    [Fri Jun 20 12:07:25.687 2014]    Trying 'kernel at 1' kernel subimage
    [Fri Jun 20 12:07:25.687 2014]      Description:  PetaLinux Kernel
    [Fri Jun 20 12:07:25.687 2014]      Type:         Kernel Image
    [Fri Jun 20 12:07:25.687 2014]      Compression:  gzip compressed
    [Fri Jun 20 12:07:25.687 2014]      Data Start:   0x010000f0
    [Fri Jun 20 12:07:25.687 2014]      Data Size:    835713 Bytes = 816.1
KiB
    [Fri Jun 20 12:07:25.687 2014]      Architecture: ARM
    [Fri Jun 20 12:07:25.687 2014]      OS:           Linux
    [Fri Jun 20 12:07:25.687 2014]      Load Address: 0x00008000
    [Fri Jun 20 12:07:25.687 2014]      Entry Point:  0x00008000
    [Fri Jun 20 12:07:25.687 2014]    Verifying Hash Integrity ... OK
    [Fri Jun 20 12:07:25.687 2014] ## Loading fdt from FIT Image at
01000000 ...
    [Fri Jun 20 12:07:25.734 2014]    Using 'conf at 1' configuration
    [Fri Jun 20 12:07:25.734 2014]    Trying 'fdt at 1' fdt subimage
    [Fri Jun 20 12:07:25.734 2014]      Description:  Flattened Device Tree
blob
    [Fri Jun 20 12:07:25.734 2014]      Type:         Flat Device Tree
    [Fri Jun 20 12:07:25.734 2014]      Compression:  uncompressed
    [Fri Jun 20 12:07:25.734 2014]      Data Start:   0x010cc224
    [Fri Jun 20 12:07:25.734 2014]      Data Size:    9766 Bytes = 9.5 KiB
    [Fri Jun 20 12:07:25.734 2014]      Architecture: ARM
    [Fri Jun 20 12:07:25.734 2014]      Hash algo:    crc32
    [Fri Jun 20 12:07:25.734 2014]      Hash value:   5b46dc3d
    [Fri Jun 20 12:07:25.734 2014]      Hash algo:    sha1
    [Fri Jun 20 12:07:25.734 2014]      Hash value:
1a2cb498446bd1c5337d74fc93f5dab58e0c265d
    [Fri Jun 20 12:07:25.734 2014]    Verifying Hash Integrity ... crc32+
sha1+ OK
    [Fri Jun 20 12:07:25.734 2014]    Booting using the fdt blob at
0x10cc224
    [Fri Jun 20 12:07:25.734 2014]    Uncompressing Kernel Image ... OK
    [Fri Jun 20 12:07:25.812 2014]    Loading Device Tree to 07ffa000, end
07fff625 ... OK
    [Fri Jun 20 12:07:25.812 2014]    Starting kernel ...

It takes `0.344ms.` But i want to reduce this time more.
I am using `image.ub` for kernel image.

Can you please tell me what should i do?