Nios® V/II Embedded Design Suite (EDS)
Support for Embedded Development Tools, Processors (SoCs and Nios® V/II processor), Embedded Development Suites (EDSs), Boot and Configuration, Operating Systems, C and C++
Announcements
FPGA community forums and blogs on community.intel.com are migrating to the new Altera Community and are read-only. For urgent support needs during this transition, please visit the FPGA Design Resources page or contact an Altera Authorized Distributor.
12748 Discussions

serial flash EPCS memory on uClinux (no driver found)

Altera_Forum
Honored Contributor II
‎09-28-2011 06:33 AM
1,331 Views

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
0 Kudos

Link Copied

2 Replies
Altera_Forum
Honored Contributor II
‎09-29-2011 04:26 PM
594 Views

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
0 Kudos
Copy link
Altera_Forum
Honored Contributor II
‎09-30-2011 06:00 AM
594 Views

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! :)
0 Kudos
Copy link
Reply

Community support is provided Monday to Friday. Other contact methods are available here.

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

For more complete information about compiler optimizations, see our Optimization Notice.