Custom Flash is not supported in Altera Qsys 12.0

yes, you can use your flash memory, i did it.

you must use 3 "components":

Flash_generic_tristate_controller

^

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tristate_conduit_pin_sharer

^

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tristate conduit bridge

It has been explained in an Altera PDF : look around Qsys and tristated component, be carfull of versions, make sure that you read for versions > 10.0

www.altera.com/literature/hb/qts/qsys_interconnect.pdf

Unfortunately, you have to edit you custom Flash component

http://www.altera.com/literature/ug/ug_embedded_ip.pdf 4. Common Flash Interface Controller Core

When you edit your flash component, you must add by hand the lines in {I don't remember}

Is memory device=1

Parameter=embeddedsw.configuration.hwClassnameDriverSupportList,embeddedsw.CMacro.SUPPORTS_FLASH_FILE_SYSTEM

Value=altera_avalon_lan91c111:altera_avalon_cfi_flash,1

and in a place just below

Parameter=embeddedsw.configuration.isMemoryDevice,embeddedsw.configuration.isPrintableDevice,embeddedsw.configuration.isNonVolatileStorage

Value=1,0,1

Please have a look with legacy CFI Flash component already present.

I spent 2 weeks to partially understand that and finally get my board work by "just working, don't touch ;-)" (no good work, no warranty)

I post here MY file with absolutely NO WARRANTY

EDIT :

Make sure that your Qsys system is in your directory project (no subdirectory) : I posted on an ohter post for that inconvenient.

Don't use space or "__" (double underscore) in your name, all lowercase (to avoid probable case sensitivity)

EDIT 2 : For software (exactly BSP Board Support Package)

That is not all :-P:-P:-P

In Qsys-edit, you must tell that your component is a Flash by opting for the "good driver" in a drop down list.

EDIT 3 : We like difficulties :p

hope it can help you and if you succeed, make us aware.