Re: serial flash EPCS memory on uClinux (no driver found)

Altera_Forum · ‎09-28-2011

Hi,

I'm just trying to configure uClinux to manage Altera EPCS controller.

I follow indications as described in alterawiki mtd devices

but the option

[*]altera spi controller does not apear on my menu config.

Also, the files /drivers/mtd/chips/epcs.h, epcs.c epcs_low epcs_map are not present in the source.

I've got uclinux nios2-linux-20090730.tar kernel 2.6.30 from alterawiki

Does anyone know if uClinux support EPCS memory ?

Should I try linux instead uClinux ?

thanks

Altera_Forum · ‎09-29-2011

The EPCS flash is just a standard SPI flash device. I think the Linux kernel supports the EPCS flash using the MTD SPI driver for the ST M25Pxx.

The source code file for this driver is under drivers/mtd/devices/m25p80.c

Altera_Forum · ‎09-30-2011

Thanks a lot Bruce,

I'll try this driver and I'll tell you if I've had success.

By now my hardware is not ready and it may take a bit.

bye! :)