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From: Detlev Zundel <dzu@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 3/3] i.MX28: Increase the delay after DRAM init
Date: Thu, 03 May 2012 16:27:47 +0200	[thread overview]
Message-ID: <m2pqal2vbw.fsf@lamuella.denx.de> (raw)
In-Reply-To: <201205031531.58387.marex@denx.de> (Marek Vasut's message of "Thu, 3 May 2012 15:31:58 +0200")

Hi Marek,

[...]

>> Can you please comment on why we are waiting and why we are waiting
>> exactly this long?  Can we maybe poll the needed time somehow?
>
> We need to wait for the CPU clock to stabilize.

This would be a worthwhile comment in the code.

> I think there is a bit for that that we can poll, indeed.

And _that_ is even better ;)

> It's in my queue to revise the memory init code eventually actually,
> because I think I can make it even faster and fix some rough edges
> that are still there.

Thanks!
  Detlev

-- 
Man is a fool, and woman, for tolerating him, is a damned fool
                       -- Mark Twain
--
DENX Software Engineering GmbH,      MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich,  Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-40 Fax: (+49)-8142-66989-80 Email: dzu at denx.de

  reply	other threads:[~2012-05-03 14:27 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-05-02 22:14 [U-Boot] [PATCH 1/3] Revert "i.MX28: Enable additional DRAM address bits" Marek Vasut
2012-05-02 22:14 ` [U-Boot] [PATCH 2/3] M28: Scan only first 512 MB of DRAM to avoid memory wraparound Marek Vasut
2012-05-02 22:14 ` [U-Boot] [PATCH 3/3] i.MX28: Increase the delay after DRAM init Marek Vasut
2012-05-02 22:55   ` Fabio Estevam
2012-05-02 23:27     ` Marek Vasut
2012-05-03  8:12       ` Detlev Zundel
2012-05-03 13:31         ` Marek Vasut
2012-05-03 14:27           ` Detlev Zundel [this message]
2012-05-03 14:39             ` Marek Vasut
2012-05-03 15:34             ` Marek Vasut
2012-05-04  9:16               ` Detlev Zundel
2012-05-03  8:11 ` [U-Boot] [PATCH 1/3] Revert "i.MX28: Enable additional DRAM address bits" Detlev Zundel
2012-05-03 13:36   ` Marek Vasut
2012-05-03 14:30     ` Detlev Zundel
2012-05-03 14:41       ` Marek Vasut
2012-05-04  9:15         ` Detlev Zundel

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