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Re: Redboot UART driver
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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