[LinuxBIOS] flashrom support for AMD Geode CS5536
jordan.crouse at amd.com
Tue Oct 2 18:36:25 CEST 2007
On 02/10/07 18:27 +0200, Stefan Reinauer wrote:
> Dear Lane!
> Thank you very much for your patch.
> * Lane Brooks <lbrooks at MIT.EDU> [071002 18:20]:
> > - It seems like there should be a way to revert the msr back after flashing
> > is completed to put the bios back in write protect mode. Is there a
> > cleanup mechanism available? Something like disable_flash...
> Unfortunately no. Any patches that generically implement such a
> mechanism are welcome though!
> > +#define _LARGEFILE64_SOURCE
> > +#include <sys/types.h>
> > +#include <sys/stat.h>
> > +#include <fcntl.h>
> > +#include <unistd.h>
> > + unsigned long addr = 0x1808;
> > + lseek64(fd_msr, (off64_t) addr, SEEK_SET);
> Why do you use/need large file support for seeking to an offset of
> 0x1808 ?
Thats original generic MSR behavior from rdmsr/wrmsr - we need the
large file support to access the high MSRs (0x80000000) and
above. Its not needed in this case - but is it hurting?
Systems Software Development Engineer
Advanced Micro Devices, Inc.
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