From: Stephen Warren <swarren@wwwdotorg.org>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] README: document the requirements for CONFIG_SYS_HZ
Date: Fri, 22 Mar 2013 15:18:38 -0600 [thread overview]
Message-ID: <514CCAAE.6020909@wwwdotorg.org> (raw)
In-Reply-To: <20130322211203.BA4752014CE@gemini.denx.de>
On 03/22/2013 03:12 PM, Wolfgang Denk wrote:
> Dear Stephen,
>
> In message <1363923692-12748-1-git-send-email-swarren@wwwdotorg.org> you wrote:
>> CONFIG_SYS_HZ must be 1000, and get_timer() must therefore return mS.
>> Document this.
>
> "must return mS" ? "mS" means Milli-Siemens, which is a unit of
> electric conductance and electric admittance. You mean "ms" =
> milliseconds ...
It seems that's true.
>> +- CPU timer options:
>> + CONFIG_SYS_HZ
>> +
>> + The frequency of the timer returned by get_timer(). This value
>> + MUST be 1000.
>
> This is misleading, or even incorrect. If I read this, I would expect
> that get_timer() returns 1000. Obviously, this is incorrect. Instead,
> get_timer() returns timestamp information in millisecond resolution.
That is not what that sentence means.
next prev parent reply other threads:[~2013-03-22 21:18 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-22 3:41 [U-Boot] [PATCH] README: document the requirements for CONFIG_SYS_HZ Stephen Warren
2013-03-22 21:12 ` Wolfgang Denk
2013-03-22 21:18 ` Stephen Warren [this message]
2013-03-22 21:41 ` Wolfgang Denk
2013-03-27 20:01 ` Tom Rini
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