Thanks for the reply.<br><br>We were referring kuroboxHG.dts which uses Sandpoint architecture; which is almost same as ours.<br><br>1. one doubt in kuroboxHG is the ranges property in SOC node says EUMB is at 0xFC00_0000; and as per the datasheet of mpc107, the open pic address will be EUMB_BASE + 0x40000; but in kurobox its given as 0x80040000; <br>
<br>2. We know that our UART is mapped at address 0xDB00_0100; which is connected in a PCI-LOCAL bridge whose base is at 0xDB00_0000<br>How can i represent these things in dts ? Can the RANGES property of PCI node can mention this ?<br>
<br><br><br><br><br> <br><br><div class="gmail_quote">On Tue, Aug 2, 2011 at 1:15 PM, tiejun.chen <span dir="ltr"><<a href="mailto:tiejun.chen@windriver.com">tiejun.chen@windriver.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div class="im">Vineeth wrote:<br>
> Hi,<br>
><br>
> We are trying to port linux 2.6.38 on MPC7410 based board (This is a<br>
> preparatory design by our customer)<br>
><br>
> System architecture is as follows,<br>
><br>
> MPC7410 <=> MPC107 <=> PCI_to_LOCAL(plx9052) <=> UART<br>
<br>
</div>MPCXXX should be compatible with TSIXXX. So you can refer to mpc7448_hpc2.<br>
<div class="im"><br>
><br>
> Previously we were using ppc architecture and we had some issues with<br>
> page_init() functions; which may be because of our configuration.As we didnt<br>
> get much support on ppc architecture we moved to powerpc.<br>
><br>
> Now we moved to powerpc architecture. We have some doubts on writing the dts<br>
> file. Please find the dts file attached.<br>
><br>
> when we checked the legacy_serial.c file, we found that<br>
> legacy_serial_parents not expecting a pci-local or a pci bridge as parent.<br>
> is our understanding correct ? should we introduce a new pci parent in that<br>
> structure ?<br>
<br>
</div>So you can understand this after refer to the file,<br>
arch/powerpc/boot/dts/mpc7448hpc2.dts.<br>
<font color="#888888"><br>
Tiejun<br>
</font><div><div></div><div class="h5"><br>
><br>
> We are confused about writing the ranges property of PCI node.we were<br>
> referring booting_without_of doc but didnt get much info. Is there any file<br>
> which gives better idea about the ranges property ?<br>
><br>
> Thanks<br>
> Vineeth<br>
<br>
</div></div></blockquote></div><br>