<br><font size=2 face="sans-serif">Timur,</font>
<br>
<br><font size=2><tt>I did define </tt></font><font size=2 face="sans-serif"> </font><font size=2><tt>#define
CFG_DDR_SDRAM_CLK_CNTL
(DDR_SDRAM_CLK_CNTL_SS_EN | \<br>
DDR_SDRAM_CLK_CNTL_CLK_ADJUST_05)</tt></font>
<br><font size=2><tt>in my code, it doesn't work</tt></font><font size=2 face="sans-serif">.
</font><font size=2><tt>What I don't understand is that we can boot
up the system using this particular memory but we could not tftp. Is there
any burst mode I can set? Thanks,</tt></font>
<br>
<br><font size=2 face="sans-serif">Best Regards</font>
<br><font size=2 face="sans-serif">dongy</font>
<br>
<br><font size=2 face="sans-serif"> </font>
<br>
<br>
<br>
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<tr valign=top>
<td>
<td><font size=1 face="sans-serif"><b>Timur Tabi <timur@freescale.com></b></font>
<p><font size=1 face="sans-serif">05/08/2007 08:14 AM</font>
<td><font size=1 face="Arial"> </font>
<br><font size=1 face="sans-serif"> To:
Dongying_Xu@us.alphanetworks.com</font>
<br><font size=1 face="sans-serif"> cc:
u-boot-users@lists.sourceforge.net</font>
<br><font size=1 face="sans-serif"> Subject:
Re: [U-Boot-Users] tftp alignment exception</font></table>
<br>
<br>
<br><font size=2><tt>Dongying_Xu@us.alphanetworks.com wrote:<br>
> <br>
> Hi Timur,<br>
> Sorry, I haven't read your email until today. The command I
used is<br>
> <br>
> tftp 4000000 file_name<br>
> <br>
> I met this problem only when I used one particular brand memory, when
<br>
> tftp, it is very slow and sometime it time-out, sometimes it throws
<br>
> exception. When I change to other brand DDR2 memory, it works fine.
I <br>
> want to know is this a memory problem or setting problem or boot code
<br>
> problem? By the way, I used spd setting and manual setting,
Both don't <br>
> work. Thanks<br>
<br>
Try adding this to your board config file:<br>
<br>
#define CFG_DDR_SDRAM_CLK_CNTL
(DDR_SDRAM_CLK_CNTL_SS_EN | \<br>
DDR_SDRAM_CLK_CNTL_CLK_ADJUST_05)<br>
<br>
On some 834x systems, CFG_DDR_SDRAM_CLK_CNTL needs to be defined but the
header files <br>
don't define it.<br>
<br>
-- <br>
Timur Tabi<br>
Linux Kernel Developer @ Freescale<br>
</tt></font>
<br>
<br>