[ECOS] Redboot UART driver

[Andrew Lunn]

On Thu, May 25, 2006 at 08:23:27AM +0200, Ray, Sujoy (Sujoy) wrote:
> Hi ALL,
> 
> Problem Summary: - I am facing a problem with the redboot build
> environment while porting it to our ARM9 based SOC. I found that it's
> not compiling the serial driver even though "ecosconfig check" shows
> that the required package is present.
> 
> Detailed Description:- We make ARM9 based SOC and the UART IP block is
> completely different. So, I need to develop a different low level UART
> driver for our chip. I did the following:-
> 	1)	Created a folder called myUART in
> \ecos-2.0\packages\devs\serial\arm and added necessary cdl and src files
> in 
>             the said directory.
> 	2)	Created a package called CYGPKG_IO_SERIAL_ARM_MYUART in
> ecos.db which points to the CDL file in \ecos-2.0
>             \packages\devs\serial\arm\ myUART\ v2_0\cdl
> 	3)	Added following Lines in ecos.db
> 	     target my125Target  {
> 		alias { "myTarget" myTarget_arm9  }
> 		packages { CYGPKG_HAL_ARM
> 	                   CYGPKG_HAL_ARM_ARM9
> 	                   CYGPKG_HAL_ARM_ARM9_MYTARGET
> 	                   CYGPKG_ERROR
> 	                   CYGPKG_IO
> 	                   CYGPKG_IO_SERIAL
> 	                   CYGPKG_IO_SERIAL_ARM_ MYUART
> 
> 	                   CYGPKG_DEVS_FLASH_INTEL_28FXXX
> 	                   CYGPKG_DEVS_FLASH_ARM_MYTARGET
> 	        }
> 	        description "
> 	        The target provides the packages needed to run
> 	        eCos on our SOC based board."
> 	}
> 	After adding above mentioned lines, my expectation is myUART.c
> located in \ecos-2.0\packages\devs\serial\arm\ myUART 
>       \ v2_0\src\ would be compiled. But in reality I found that this is
> not getting compiled.
> 
> 	Any help regarding this would be highly appreciated.

Redboot uses the HAL serial driver, not the fully, interrupt serial
driver. The HAL serial driver should be in your
CYGPKH_HAL_ARM9_MYTARGET, normally in the file hal_diag.c

         Andrew

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