On Wed, Sep 23, 2009 at 02:10:13, Sergei Shtylyov wrote:
> Hello.
> 
> Nori, Sekhar wrote:
> 
> >>> is enabled by proper programming of the IO Expander (TCA6416) ports. Also 
> >>> for
> >>> RMII PHY to work, the MDIO clock of MII PHY has to be disabled since both 
> >>> the
> >>> PHYs have the same address. This is done via the GPIO2[6] pin. This patch 
> >>> adds
> >>> support for RMII PHY.
> >>>
> >>> This patch also adds a menuconfig option to select UI card and peripherals
> >>> present on it. Currently, the only sub-option in this menu is RMII.
> >>> This menuconfig option is similar to the one present for UI card on
> >>> DA830/OMAP-L137 EVM.
> >>>
> >>> Signed-off-by: Chaithrika U S <chaithr...@ti.com>
> >>>       
> >> [...]
> >>     
> >>> diff --git a/arch/arm/mach-davinci/Kconfig b/arch/arm/mach-davinci/Kconfig
> >>> index 7b6dddf..4ee61cc 100644
> >>> --- a/arch/arm/mach-davinci/Kconfig
> >>> +++ b/arch/arm/mach-davinci/Kconfig
> >>> @@ -129,6 +129,32 @@ config MACH_DAVINCI_DA850_EVM
> >>>     help
> >>>       Say Y here to select the TI DA850/OMAP-L138 Evaluation Module.
> >>>
> >>> +config DA850_UI
> >>> +   bool "DA850/OMAP-L138 UI (User Interface) board support"
> >>> +   depends on MACH_DAVINCI_DA850_EVM
> >>> +   help
> >>> +     Say Y here if you have the DA850/OMAP-L138 UI
> >>> +     (User Interface) board installed and you want to
> >>> +     enable the peripherals located on User Interface
> >>> +     board.
> >>> +
> >>> +choice
> >>> +   prompt "Select DA850/OMAP-L138 UI board peripheral"
> >>> +   depends on DA850_UI
> >>>       
> >>      Are the devices on the UI board really mutually exclusive?
> >>     
> >
> > What is the purpose of the UI board configuration? Is it just to
> > provide one place where all UI board peripherals can be disabled?
> >   
> 
>    In case of DA830 EVM, it's a place where the UI board support can be 
> disabled -- you can't do that with the 'choice' statement which would 
> alwys select at least one item. But it's not only that. The board has 
> the GPIO expander which we need not support (and setup) if the board is 
> absent. It was not clear to me where the TCA6414 GPIO expander is 
> situated on DA850 EVM -- on the board itself or on the UI daughter board...
> 

TCA6416 is present on the UI card for DA850/OMAP-L138 EVM.


Regards, 
Chaithrika


_______________________________________________
Davinci-linux-open-source mailing list
Davinci-linux-open-source@linux.davincidsp.com
http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source

Reply via email to