RE: [ECOS] Flash - the saga continues

["Matt Sartori" <msartori at hanoverdisplays dot com>]

Hi Andrew.
I'm using my own flash drivers which I've placed in
/packages/devs/flash/arm/myboard/current/src and, in the configtool
packages window the packages used for my particular configuration are
both the "generic FLASH memory support" and the "FLASH memory support
for the ARM STR710FZ2" (which I've been referring to as my board in my
postings). All the stuff I've not written myself came from a cvs
snapshot from a month or so back.

The CYGPKG_REDBOOT_FLASH is set to true.
I know that Redboot is using (or at least calling the expected
functions) because on reset it now displays the message;
"FLASH: 0x00000000 - 0x0, 0 blocks of 0x00000000 bytes each."
I have put a hang (while(1);) in the function that calls the
flash_hwr_init (called flash_init in
/packages/io/flash/current/src/flash.c) and it does hang, but putting
the same in my flash_hwr_init doesn't hang it, ergo it must be calling
some other flash_hwr_init. My suspicions were then confirmed when I
renamed my flash_hwr_init and Redboot didn't bat an eyelid.



-----Original Message-----
From: Andrew Lunn [mailto:andrew@lunn.ch] 
Sent: 30 August 2005 14:05
To: Matt Sartori
Cc: eCos Discussion
Subject: Re: [ECOS] Flash - the saga continues

> What gets me is that I can't find where those other definitions would
be
> (unless it's secretly compiling the files for some other flash device
in
> the /packages/devs/ directory). 
> One thing that strikes me as slightly odd is that the generated file
> devs_flash_arm_myboard.h does nothing but define
> CYGONCE_PKGCONF_DEVS_FLASH_ARM_MYBOARD_H

Just so i keep this straight in my head. You are using the plain flash
from the anoncvs trunk?

What value does CYGPKG_REDBOOT_FLASH have?

You won't get a linker error if the functions are not being called. It
could be your redboot is not even using the flash.

        Andrew

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