On Wednesday 28 November 2007, Dell Query wrote: > Oh is it 0x1C0002000?
Just to be sure here, we are talking about the AMCC Sequoia board, right? > Where can I get the document? What I have is 0xC0002000 from > ep440xc_um_amcc.pdf file that I get from the accompanying PPC440EPx > resource CD. Please take a look at the 440EPx data sheet. It has a nice table with an overview of the address maps (table 1). Here you will notice that the EBC has multiple maps, one starting at 0x1.c000.0000 and another one at 0x1.f000.0000. Yes, these are 36bit physical addresses. In U-Boot these are mapped via the TLB to 0xc000.0000 and 0xf000.0000. So in U-Boot you are able to access the CPLD at 0xc0000000. But in Linux you have to map the 36bit address to get the virtual address which you need for accessing. And using arch/ppc you need to call ioremap64() with this 36bit address as parameter. Hope this helps. Best regards, Stefan ===================================================================== DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-0 Fax: +49-8142-66989-80 Email: [EMAIL PROTECTED] ===================================================================== _______________________________________________ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded
