[PATCH v2 1/4] arm64: add basic Kconfig symbols for i.MX8

[shawnguo@kernel.org (Shawn Guo)]

On Thu, Feb 01, 2018 at 07:31:23PM +0100, Lucas Stach wrote:
> Add basic Kconfig symbols to make the MXC architecture available
> in the ARM64 world.
> 
> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
> ---
> v2: fix "enabled" typo.
> ---
>  arch/arm64/Kconfig.platforms |  6 ++++++
>  drivers/soc/imx/Kconfig      | 12 ++++++++++++
>  2 files changed, 18 insertions(+)
> 
> diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
> index 2401373565ff..ae3be0d2cdb5 100644
> --- a/arch/arm64/Kconfig.platforms
> +++ b/arch/arm64/Kconfig.platforms
> @@ -131,6 +131,12 @@ config ARCH_MVEBU
>  	   - Armada 7K SoC Family
>  	   - Armada 8K SoC Family
>  
> +config ARCH_MXC
> +	bool "ARMv8 based NXP i.MX SoC family"
> +	help
> +	  This enables support for the ARMv8 based SoCs in the
> +	  NXP i.MX family.
> +
>  config ARCH_QCOM
>  	bool "Qualcomm Platforms"
>  	select GPIOLIB
> diff --git a/drivers/soc/imx/Kconfig b/drivers/soc/imx/Kconfig
> index a5b86a28f343..8c9f04440896 100644
> --- a/drivers/soc/imx/Kconfig
> +++ b/drivers/soc/imx/Kconfig
> @@ -8,3 +8,15 @@ config IMX7_PM_DOMAINS
>  	default y if SOC_IMX7D
>  
>  endmenu
> +
> +if ARCH_MXC
> +
> +if ARM64
> +
> +config SOC_IMX8MQ
> +	bool "i.MX8MQ support"
> +	help
> +	  This enables support for the i.MX8MQ SoC.
> +endif
> +
> +endif

I do not feel it's so idiomatic to select a platform SoC in drivers/soc
folder.  The options in this folder are used to select SoC level drivers
not the SoC itself.  Can we just use ARCH_MXC for all IMX ARMv8 SoCs?
Or if we really want individual SoC option, can we do something similar
to Renesas platform, having sub-select under "ARMv8 based NXP i.MX SoC
family"?

Shawn