No subject
Tue Aug 19 22:18:26 CEST 2008
=20
Note: Don't enable the "icache" and "dcache" commands
(configuration option CFG_CMD_CACHE) unless you know
what you (and your U-Boot users) are doing. Data
cache cannot be enabled on systems like the 8xx or
8260 (where accesses to the IMMR region must be
uncached), and it cannot be disabled on all other
systems where we (mis-) use the data cache to hold an
initial stack and some data.
=20
-----Original Message-----
From: u-boot-users-admin at lists.sourceforge.net =
[mailto:u-boot-users-admin at lists.sourceforge.net]On Behalf Of =
Dipen_Patel
Sent: Wednesday, August 03, 2005 8:24 AM
To: u-boot-users at lists.sourceforge.net
Cc: Lochana_Lingegowda
Subject: [U-Boot-Users] Problem while Enabling Data Cache for MPC8260 =
based custom board
Dear Mailing List,
=20
We have designed MPC8260 based custom board. I enabled I-Cache and =
u-boot still works. But as soon as I enabled D-Cache nothing comes up on =
Hyper Terminal.
=20
Can anyone suggest regarding this problem?=20
=20
Regards,
Dipen Patel
=20
DISCLAIMER:
This email (including any attachments) is intended for the sole use of =
the intended recipient/s and may contain material that is CONFIDENTIAL =
AND PRIVATE COMPANY INFORMATION. Any review or reliance by others or =
copying or distribution or forwarding of any or all of the contents in =
this message is STRICTLY PROHIBITED. If you are not the intended =
recipient, please contact the sender by email and delete all copies; =
your cooperation in this regard is appreciated..=20
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<BODY lang=3DEN-US vLink=3Dpurple link=3Dblue>
<DIV><FONT face=3DArial color=3D#0000ff size=3D2><SPAN =
class=3D664211913-03082005>From=20
the README file:</SPAN></FONT></DIV>
<DIV><FONT face=3DArial color=3D#0000ff size=3D2><SPAN=20
class=3D664211913-03082005></SPAN></FONT> </DIV>
<DIV><FONT face=3DArial color=3D#0000ff size=3D2><SPAN =
class=3D664211913-03082005><FONT=20
face=3D"Courier New" color=3D#000080 size=3D1>
<P><FONT face=3DArial color=3D#0000ff size=3D2></FONT><FONT face=3DArial =
color=3D#0000ff=20
size=3D2> Note: =
Don't enable=20
the "icache" and "dcache"=20
commands<BR> &=
nbsp; =20
(configuration option CFG_CMD_CACHE) unless you=20
know<BR>  =
; =20
what you (and your U-Boot users) are doing.=20
Data<BR>  =
; =20
cache cannot be enabled on systems like the 8xx=20
or<BR> &=
nbsp; =20
8260 (where accesses to the IMMR region must=20
be<BR> &=
nbsp; =20
uncached), and it cannot be disabled on all=20
other<BR> &nbs=
p; =20
systems where we (mis-) use the data cache to hold=20
an<BR> &=
nbsp; =20
initial stack and some data.</FONT></P>
<P><FONT face=3DArial color=3D#0000ff size=3D2></FONT></FONT><FONT =
face=3D"Courier New"=20
color=3D#000080 size=3D1> </P></FONT></SPAN></FONT></DIV>
<BLOCKQUOTE dir=3Dltr style=3D"MARGIN-RIGHT: 0px">
<DIV class=3DOutlookMessageHeader dir=3Dltr align=3Dleft><FONT =
face=3DTahoma=20
size=3D2>-----Original Message-----<BR><B>From:</B>=20
u-boot-users-admin at lists.sourceforge.net=20
[mailto:u-boot-users-admin at lists.sourceforge.net]<B>On Behalf Of=20
</B>Dipen_Patel<BR><B>Sent:</B> Wednesday, August 03, 2005 8:24=20
AM<BR><B>To:</B> u-boot-users at lists.sourceforge.net<BR><B>Cc:</B>=20
Lochana_Lingegowda<BR><B>Subject:</B> [U-Boot-Users] Problem while =
Enabling=20
Data Cache for MPC8260 based custom board<BR><BR></FONT></DIV>
<DIV class=3DSection1>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">Dear Mailing=20
List,<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">We have designed MPC8260 =
based=20
custom board. I enabled I-Cache and u-boot still works. But as soon as =
I=20
enabled D-Cache nothing comes up on Hyper=20
Terminal.<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">Can anyone suggest =
regarding this=20
problem? <o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial">Regards,</SPAN></FONT><o:p></o:p></P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">Dipen=20
Patel</SPAN></FONT><o:p></o:p></P>
<P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN=20
style=3D"FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P></DIV>
<P></P>
<P>DISCLAIMER:<BR>This email (including any attachments) is intended =
for the=20
sole use of the intended recipient/s and may contain material that is=20
CONFIDENTIAL AND PRIVATE COMPANY INFORMATION. Any review or reliance =
by others=20
or copying or distribution or forwarding of any or all of the contents =
in this=20
message is STRICTLY PROHIBITED. If you are not the intended recipient, =
please=20
contact the sender by email and delete all copies; your cooperation in =
this=20
regard is appreciated.. </P></BLOCKQUOTE></BODY></HTML>
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