Luigi Rizzi wrote: > Hello, > Hi,
> on my system I'm using a TQM885D module with U-boot 1.3.0-rc2 and > Linux 2.4.25 (DENX ELDK 3.1.1). Really very old... > I connected to this module an > external SRAM (actually a dual port SRAM that act as interface with > another system...) and than I configured in U-boot the chip select > for this memory. I mapped the Memory starting from 0x80000000. How do you mapped it ? Which ioremap() function do you use it ? > > When I try to access this memory everything seem to works fine till > address 0x8000FFFF. Above this address kernel displays this error: > > Oops: Kernel access of bad area, Sig: 11 The SRAM is not mapped by MMU. As I see in code, the address is already used for PCI and only 64KB are mapped. It is exactly the RAM you can see. Best regards, Stefano Babic -- ===================================================================== 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] ===================================================================== _______________________________________________ eldk mailing list [email protected] http://lists.denx.de/mailman/listinfo/eldk
