linux-kernel - Re: [RFC PATCH 13/17] powerpc/e500: Add a new CONFIG_FSL

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Message-Id: <20F26EAB-5DDA-4B65-913E-479653AD27D3@kernel.crashing.org>
Date:	Thu, 10 Nov 2011 07:46:08 -0600
From:	Kumar Gala <galak@...nel.crashing.org>
To:	Kyle Moffett <Kyle.D.Moffett@...ing.com>
Cc:	linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
	Baruch Siach <baruch@...s.co.il>,
	Timur Tabi <B04825@...escale.com>,
	Scott Wood <scottwood@...escale.com>,
	Paul Gortmaker <paul.gortmaker@...driver.com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>,
	Paul Bolle <pebolle@...cali.nl>,
	Sonny Rao <sonnyrao@...ux.vnet.ibm.com>
Subject: Re: [RFC PATCH 13/17] powerpc/e500: Add a new CONFIG_FSL_E5500 option for the e5500


On Nov 9, 2011, at 6:07 PM, Kyle Moffett wrote:

> As part of splitting CONFIG_E500 into separate options for e500v1/v2 and
> e500mc/e5500, some code only needs to be built when e5500 support is
> required.
> 
> This adds a new internal-use config option for both 32-bit and 64-bit
> builds that enables only the e5500 support code.
> 
> Signed-off-by: Kyle Moffett <Kyle.D.Moffett@...ing.com>
> ---
> arch/powerpc/platforms/85xx/Kconfig    |    2 +-
> arch/powerpc/platforms/Kconfig.cputype |    4 ++++
> 2 files changed, 5 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig
> index 248f87c..72488d4 100644
> --- a/arch/powerpc/platforms/85xx/Kconfig
> +++ b/arch/powerpc/platforms/85xx/Kconfig
> @@ -231,8 +231,8 @@ endif # PPC32
> config P5020_DS
> 	bool "Freescale P5020 DS"
> 	depends on FSL_E500MC || PPC_BOOK3E_64
> +	select FSL_E5500
> 	select DEFAULT_UIMAGE
> -	select E500
> 	select PHYS_64BIT_DT_REQUIRED
> 	select SWIOTLB
> 	select ARCH_REQUIRE_GPIOLIB
> diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
> index fd37bb2..cff45e3 100644
> --- a/arch/powerpc/platforms/Kconfig.cputype
> +++ b/arch/powerpc/platforms/Kconfig.cputype
> @@ -144,6 +144,10 @@ config 8xx
> config PPC_85xx
> 	bool
> 
> +config FSL_E5500
> +	bool
> +	select E500
> +
> config E500
> 	select FSL_EMB_PERFMON
> 	select PPC_FSL_BOOK3E
> -- 
> 1.7.2.5

Nak, I don't want to add a unique build option for 64-bit E5500 vs E500MC.  We have E6500 coming and I don't want to introduce CONFIG_FSL_E6500 at that point.

- k

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