[U-Boot] [PATCH] Kconfig: ifc: Moving IFC_BANK_COUNT from Kconfig to config.h

[Prabhakar Kushwaha]

> -----Original Message-----
> From: york sun
> Sent: Monday, October 24, 2016 9:41 PM
> To: Prabhakar Kushwaha <prabhakar.kushwaha at nxp.com>; u-
> boot at lists.denx.de
> Cc: oss at buserror.net
> Subject: Re: [PATCH] Kconfig: ifc: Moving IFC_BANK_COUNT from Kconfig to
> config.h
> 
> On 10/23/2016 07:04 AM, Prabhakar Kushwaha wrote:
> > Hi York,
> >
> >> -----Original Message-----
> >> From: york sun
> >> Sent: Friday, October 21, 2016 7:55 PM
> >> To: Prabhakar Kushwaha <prabhakar.kushwaha at nxp.com>; u-
> >> boot at lists.denx.de
> >> Cc: oss at buserror.net
> >> Subject: Re: [PATCH] Kconfig: ifc: Moving IFC_BANK_COUNT from Kconfig to
> >> config.h
> >>
> >> On 10/20/2016 11:37 PM, Prabhakar Kushwaha wrote:
> >>> Migration of IFC_BANK_COUNT from Kconfig to config.h avoids adding
> >>> SoC name in Kconfig as Dependencies. It will help in having
> >>> all SoC related defines in config.h - easy to maintain.
> >>>
> >>
> >> Prabhakar,
> >>
> >> Why do you want to go back to config.h? I think we are going with
> >> Kconfig. Having everything in one config file conflicts with Kconfig.
> >> The former has centralized config per SoC, the latter has centralized
> >> config per feature.
> >>
> >
> > There are 2 reason for this
> >
> > 1) in File arch/arm/cpu/armv8/fsl-layerscape/Kconfig, "depends" row will keep
> on increasing with SoC.
> > And if I add new field CONFIG_SYS_FSL_IFC_CLK_DIV, similar entry will be
> done and it will also keep on increasing with SoC.
> > I want to avoid it.
> >
> > config SYS_FSL_IFC_BANK_COUNT
> > 	int "Maximum banks of Integrated flash controller"
> > 	depends on ARCH_LS1043A || ARCH_LS1046A || ARCH_LS2080A
> 
> The "depends" line can be rewritten with HAS_* feature macro.
> 
> > 	default 4 if ARCH_LS1043A
> > 	default 4 if ARCH_LS1046A
> > 	default 8 if ARCH_LS2080A
> 
> You can simplify the "default 4" for all and only use different number
> for others.
> 

ok


> >
> > 2) There is no file similar to  " arch/arm/cpu/armv8/fsl-layerscape/Kconfig" for
> powerpc platform. So how to add new " CONFIG SYS_FSL_IFC_CLK_DIV" with
> different values per SoC.
> >    This problem will come for defining other clocks for " armv8/fsl-lsch3:
> consolidate the clock system initialization"
> >
> 
> We will convert powerpc as well.

This means, IFC and clock related patches needs to wait till powerpc is converted as well.

-prabhakar