[Bug 1001291] New HAL for Cortex-M3 Smartfusion device

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--- Comment #47 from Ilija Kocho <ilijak@siva.com.mk> 2012-02-12 12:15:56 GMT ---
(In reply to comment #46)
> Hi Ilija,
> 
> I will check again the status of the new disclaimer and revert to you.
> 
> However, I would like to fix Bug 1001449 first. I see in your attachment (Flash
> driver SST25XX SPI tests 120206) from Bug 1001450
> that you have defined CYGNUM_DEVS_FLASH_SPI_SS25XX_MAP_ADDR directly in the
> test case (flash_sst25xx_test.c), instead of spreading 
> CYGNUM_DEVS_FLASH_SPI_SST25XX_DEV0_MAP_ADDR.

Nice catch. Thank you for pointing this out. It is a ghost from old code.

> 
> In my proposal (1001449), I suggested to have a platform specific include in
> the test case C file that provides the configuration of the platform flash:
> 
> #include CYGDAT_DEVS_FLASH_SPI_AT25DFXXX_PLF_CDL
> 
> And CYGDAT_DEVS_FLASH_SPI_AT25DFXXX_PLF_CDL is defined in the platform CDL as
> done other places:
> 
> define_proc {
>         puts $::cdl_system_header "#define
> CYGDAT_DEVS_FLASH_SPI_AT25DFXXX_PLF_CDL
> <pkgconf/devs_flash_cortexm_a2f200_eval.h>"
>     }
> 
> What do you think?

I have defined CYGNUM_DEVS_FLASH_SPI_SST25XX_DEV0_MAP_ADDR in the driver CDL
but you are right. Things like this, I would call them /configurable constants/
should come from the HAL. Every platform can have it's own address space.
I am going to change it, only, I would parent
CYGNUM_DEVS_FLASH_SPI_SST25XX_DEV0_MAP_ADDR (or
CYGDAT_DEVS_FLASH_SPI_AT25DFXXX_PLF_CDL) by their respective FLASH drivers.

Regards
Ilija

P.S.
Speaking of HAL /configurable constants/, you may find interesting to see and
comment (and I hope consider for Smartfusion) my discussion
http://bugs.ecos.sourceware.org/show_bug.cgi?id=1001397#c13 with Tomas Frydrych
regarding consolidated /Interrupt Priority Scheme/. I think that it will be of
help to application programmers for tuning real-time system behavior.
You can see this feature implemented implemented in the latest Variant and
Platform (as well as affected driver) attachments in Bug 1001450.

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