[LinuxBIOS] EEPROM/flash device not found error

Ingmar Schraub is at eseco.de
Wed Aug 15 11:21:46 CEST 2007

Jordan Crouse wrote:
> On 14/08/07 21:28 +0200, Peter Stuge wrote:
>> On Tue, Aug 14, 2007 at 11:25:38AM -0600, Marc Jones wrote:
>>> Is it worth adding rdmsr/wrmsr to flashrom?
>> Is there a better option?
> Nope.  You need MSR acess, and thats the only way to get it from
> userspace.
>> Is it neccessary to always write all 64 bits of the MSR by the way?
> Yes - at least this way, which uses just a straight wrmsr in the kernel.

Okay, I hacked that in and it seems to work. My SST49LF040B flash chip
is properly identified at 0xfff80000.

How would you call the enable_flash function in chipset_enable? E.g.
enable_flash_cs5536 or enable_flash_geodelx ?


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