From: wyu hotmail <santerash@hotmail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] RE: Where is the CPU clock speed definition
Date: Fri, 04 Jun 2004 01:14:17 +0000 [thread overview]
Message-ID: <SEA2-F62S2TRqf69aZb00012b4e@hotmail.com> (raw)
Hi,
CONFIG_SYS_CLK_FREQ is the input frequency of 405GP's clocking system. The
internal PLL uses this frequency and the division parameters strapped from
IO pins at power on reset to generate the different clocks needed in 405GP.
You can find the detail description about 405GP's clock system in 405GP's
user manual, which can be downloaded from IBM's website.
yuwp
>From: "Frank Young" <young726@hotmail.com>
>To: u-boot-users at lists.sourceforge.net
>Date: Thu, 03 Jun 2004 14:19:44 -0400
>Subject: [U-Boot-Users] Where is the CPU clock speed definition
>
>Hi,
>
>I am using a WALNUT with PPC405 200MHz CPU. I am trying to install the
>u-boot on this board. I have built the image. But before I put the image
to
>the flash, I want to confirm one thing: do I have to configure the CPU
speed
>for this board? I checked the file include/configs/WALNUT405.h. I only
found
>a definition for CONFIG_SYS_CLK_FREQ, which is for external clock. Where
is
>the CPU clock frequency defined?
>
>Thanks!
>
>Frank
>
reply other threads:[~2004-06-04 1:14 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=SEA2-F62S2TRqf69aZb00012b4e@hotmail.com \
--to=santerash@hotmail.com \
--cc=u-boot@lists.denx.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox