From: Timur Tabi <timur@freescale.com>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] i2c_set_bus_num
Date: Thu, 29 Mar 2007 13:11:12 -0500 [thread overview]
Message-ID: <460C0140.80400@freescale.com> (raw)
In-Reply-To: <OF3407911C.9C67A1CD-ON882572AD.006249DB-882572AD.0063D140@us.alphanetworks.com>
Dongying_Xu at us.alphanetworks.com wrote:
>
> Kim,
>
> Thanks. When I defined CFG_SPD_BUS_NUM 1 in my header file, things are
> much better. Though I don't understand why this definition will help.
> I read the "Initial Stack, Global Data" part in Readme, It looks that
> Initialized global data is read-only, if this is the case, then It
> should fail when I try to set I2c bus num to 0, but it worked. Could
> you please explain a little bit? Thanks
If you call i2c_set_bus_num() before DDR is initialized, it will fail.
If you call i2c_set_bus_num() after DDR is initialized, it will succeed.
--
Timur Tabi
Linux Kernel Developer @ Freescale
next prev parent reply other threads:[~2007-03-29 18:11 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-27 23:48 [U-Boot-Users] i2c_set_bus_num Dongying_Xu at us.alphanetworks.com
2007-03-28 1:00 ` Kim Phillips
2007-03-28 1:07 ` Timur Tabi
2007-03-29 18:07 ` Dongying_Xu at us.alphanetworks.com
2007-03-29 18:11 ` Timur Tabi [this message]
2007-03-29 18:51 ` Dongying_Xu at us.alphanetworks.com
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