[ECOS] Enabling flash memory support (custom board)

[ECOS] Enabling flash memory support (custom board)

[David Ho]

Hi,

I am attempting to enable AMD/Spansion flash support for redboot but
when I examined ecos.ecc, it is not active.

# AMD AM29XXXXX FLASH memory support
# FLASH memory device support for AMD AM29XXXXX
#
cdl_package CYGPKG_DEVS_FLASH_AMD_AM29XXXXX {
    # Packages cannot be added or removed, nor can their version be changed,
    # simply by editing their value. Instead the appropriate configuration
    # should be used to perform these actions.

    # This option is not active
    # ActiveIf constraint: CYGPKG_IO_FLASH
    #     CYGPKG_IO_FLASH == current
    #   --> 1
    # ActiveIf constraint: CYGINT_DEVS_FLASH_AMD_AM29XXXXX_REQUIRED
    #     CYGINT_DEVS_FLASH_AMD_AM29XXXXX_REQUIRED (unknown) == 0
    #   --> 0
};


Looking around, CYGINT_DEVS_FLASH_AMD_AM29XXXXX_REQUIRED is not set, I
suppose I should not set this manually and let the inference engine
figure it out.

The question becomes, how do I do that?

I have included in my ROM configuration IO_FLASH and DEV_FLASH_AMD,
enabled FIS and FCONFIG.

Is there anything I missed?

Thanks,
David


diff --git a/packages/hal/arm/at91/satmodem/current/misc/redboot_ROM.ecm
b/packages/hal/arm/at91/satmodem/current/misc/redboot_ROM.ecm
index b6fa905..ad4032d 100644
--- a/packages/hal/arm/at91/satmodem/current/misc/redboot_ROM.ecm
+++ b/packages/hal/arm/at91/satmodem/current/misc/redboot_ROM.ecm
@@ -9,13 +9,15 @@ cdl_savefile_command cdl_interface { val

 cdl_configuration eCos {
     description "" ;
-    hardware    eb40a ;
+    hardware    satmodem ;
     template    redboot ;
     package -hardware CYGPKG_HAL_ARM current ;
     package -hardware CYGPKG_HAL_ARM_AT91 current ;
+    package -hardware CYGPKG_DEVS_FLASH_AMD_AM29XXXXX current ;
     package -template CYGPKG_HAL current ;
     package -template CYGPKG_INFRA current ;
     package -template CYGPKG_REDBOOT current ;
+    package CYGPKG_IO_FLASH current ;
 };

 cdl_option CYGNUM_HAL_COMMON_INTERRUPTS_STACK_SIZE {
@@ -51,11 +53,11 @@ cdl_component CYGBLD_BUILD_REDBOOT {
 };

 cdl_option CYGOPT_REDBOOT_FIS {
-    user_value 0
+    user_value 1
 };

 cdl_component CYGSEM_REDBOOT_FLASH_CONFIG {
-    user_value 0
+    user_value 1
 };

 cdl_option CYGBLD_BUILD_REDBOOT_WITH_EXEC {

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Re: [ECOS] Enabling flash memory support (custom board)

[Gary Thomas]

David Ho wrote:
> Hi,
> 
> I am attempting to enable AMD/Spansion flash support for redboot but
> when I examined ecos.ecc, it is not active.
> 
> # AMD AM29XXXXX FLASH memory support
> # FLASH memory device support for AMD AM29XXXXX
> #
> cdl_package CYGPKG_DEVS_FLASH_AMD_AM29XXXXX {
>    # Packages cannot be added or removed, nor can their version be changed,
>    # simply by editing their value. Instead the appropriate configuration
>    # should be used to perform these actions.
> 
>    # This option is not active
>    # ActiveIf constraint: CYGPKG_IO_FLASH
>    #     CYGPKG_IO_FLASH == current
>    #   --> 1
>    # ActiveIf constraint: CYGINT_DEVS_FLASH_AMD_AM29XXXXX_REQUIRED
>    #     CYGINT_DEVS_FLASH_AMD_AM29XXXXX_REQUIRED (unknown) == 0
>    #   --> 0
> };
> 
> 
> Looking around, CYGINT_DEVS_FLASH_AMD_AM29XXXXX_REQUIRED is not set, I
> suppose I should not set this manually and let the inference engine
> figure it out.
> 
> The question becomes, how do I do that?
> 
> I have included in my ROM configuration IO_FLASH and DEV_FLASH_AMD,
> enabled FIS and FCONFIG.
> 
> Is there anything I missed?
> 

Your platform has to provide the implementation details for the
FLASH driver.  Look around at how other platforms do it, e.g. the
A&M Adder uses this driver.

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------

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Re: [ECOS] Enabling flash memory support (custom board)

[David Ho]

On 7/5/06, Gary Thomas <gary@mlbassoc.com> wrote:
> Your platform has to provide the implementation details for the
> FLASH driver.  Look around at how other platforms do it, e.g. the
> A&M Adder uses this driver.

I found that after a bit of digging myself.  Should have looked harder :)

Thanks, David

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