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From: Wolfgang Denk <wd@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] decrease boot time
Date: Sat, 12 Feb 2005 01:34:25 +0100	[thread overview]
Message-ID: <20050212003430.658ADC1430@atlas.denx.de> (raw)
In-Reply-To: Your message of "Fri, 11 Feb 2005 23:30:35 +0100." <20050211223035.GA10412@ku-gbr.de>

In message <20050211223035.GA10412@ku-gbr.de> you wrote:
> 
> I am trying to improve boot time of my linux system on my motorola i.MX
> system as much as possible. Therefore I tried to omit the copying and
> decompressing the linux kernel image ba using XIP, but the code runs

Are you sure that this is where you spend a significant part of  your
boot  time?  I  guess you did run some analysis on which steps of the
boot procedure take how long etc.???

> I wonder how to make use of sync burst mode with u-boot in conjunction

What makes you think that this would solve a problem?

> How do I disable serial support in u-boot? My u-boot is currently 60k
> big, in my opinion a simple bootloader which does something like
> memsetup and starting kernel afterwards should not be much bigger than
> 10k. Or is that wrong?

Your assumption may be of for "a simple bootloader", but then  U-Boot
is not such a beast.

Also, which problem do you try to solve? Boot time? Image size?

What makes you think that disabling the serial  console  would  solve
either of these problems? [If these actually are problems.]

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
There is a time in the tides of men, Which, taken at its flood, leads
on to success. On the other hand, don't count on it.   - T. K. Lawson

  parent reply	other threads:[~2005-02-12  0:34 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-02-11 22:30 [U-Boot-Users] decrease boot time Konstantin Kletschke
2005-02-11 23:28 ` Grant Likely
     [not found]   ` <20050212200503.GA11316@ku-gbr.de>
2005-02-12 21:02     ` Grant Likely
2005-02-12 22:30       ` Wolfgang Denk
2005-02-13 13:14         ` Konstantin Kletschke
2005-02-15 14:50         ` Konstantin Kletschke
2005-02-13 13:02       ` Konstantin Kletschke
2005-02-14  8:36         ` Grant Likely
2005-02-12  0:34 ` Wolfgang Denk [this message]
  -- strict thread matches above, loose matches on Subject: below --
2005-02-12 22:52 Wolfgang Denk
2005-02-13 13:33 ` Konstantin Kletschke
2005-02-14 12:26 ` Konstantin Kletschke
2005-02-14 13:41   ` Konstantin Kletschke
2005-02-14 19:44     ` Wolfgang Denk
     [not found] <20050212200931.GB11316@ku-gbr.de>
     [not found] ` <20050212223043.98E11C1430@atlas.denx.de>
2005-02-13 13:31   ` Konstantin Kletschke
2005-02-13 15:17     ` Wolfgang Denk
2005-02-13 13:38   ` Konstantin Kletschke
2005-02-13 15:20     ` Wolfgang Denk
2005-02-14 12:11       ` Konstantin Kletschke
2005-02-14 12:26         ` Wolfgang Denk

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