Re: MPC8555CDS & CCSRBAR
From: Gerhard Jaeger <hidden>
Date: 2005-08-09 14:16:11
On Tuesday 09 August 2005 16:04, Eric Kampman wrote:
Trying to port an SEC driver to Linux/PPC8555. Reading the default CCSRBAR @ 0xFF700000 I read 0xFFFFFFFF which is wrong. Looking at Metrowerks init files and uboot code (1.1.2) I see it's likely been moved to 0xE0000000, but I get a seg fault when I try to read there. So, what am I doing wrong, and even better, how do I at runtime find out where CCSRBAR is? Thanks in advance, and please forgive the likely ignorance, Eric
use the get_ccsrbar() function to get the address, then ioremap() will be your friend ;) HTH Gerhard -- Gerhard Jaeger [off-list ref] SYSGO AG Embedded and Real-Time Software www.sysgo.com | www.elinos.com | www.pikeos.com | www.osek.de