[ECOS] How to add a second flash device software management on an ixdpg425 board (montejade)

[thierry langlais <thierry dot langlais at efixo dot com>]

Hi all,

I would like to add the management of a second strataflash memory chip
on an ixdpg425 board in order to get an upgrade of 16MB. 
The added memory is the same than the first one (28F128J3D).

I read some documents and finally found one that really helped me
but ... it seems to be not sufficient for me !

This document is this one:
ftp://download.intel.com/design/network/applnots/25430802.pdf

The chapter 5.4.1 is pretty explicit but i may have something else to
do.

Here are my changes
1) I changed the
devfs/flash/arm/ixdpg425/current/include/ixdpg425_strataflash.inl file
from
#define CYGNUM_FLASH_DEVICES (1)
to 
#define CYGNUM_FLASH_DEVICES (2)


2) I also modified the
packages/hal/arm/ixdpg425/current/include/ixdpg425.h file
from
#define IXDP_FLASH_SIZE     //0x01000000  // 16MB
to
#define IXDP_FLASH_SIZE     //0x02000000  // 32MB

May I have to change something on the following constant ?
// CS0 (flash optimum timing)
#define IXP425_EXP_CS0_INIT ...

Or let it and create the IXP425_EXP_CS1_INIT one ?

I also read this one:
http://developer.intel.com/design/network/manuals/252480.htm
The chapter 8 let me suppose that I have to duplicate the
IXP425_EXP_CS0_INIT define to IXP425_EXP_CS1_INIT.
Am I right ?

After this changes, I loaded a redboot_RAM.srec into my board but it
doesn't work.

Thank for your help and sorry about my poor english ;-)

Thierry Langlais


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