[U-Boot] [PATCH 01/23] imx: add i.MX8M into Kconfig

[Stefano Babic]

Hi Peng,

On 28/11/2017 13:31, Peng Fan wrote:
> Add i.MX8M into Kconfig, create a new folder mx8m
> dedicated for i.MX8M.
> 
> Signed-off-by: Peng Fan <peng.fan at nxp.com>
> ---
>  arch/arm/Kconfig               |  8 ++++++++
>  arch/arm/Makefile              |  4 ++--
>  arch/arm/mach-imx/mx8m/Kconfig | 10 ++++++++++
>  3 files changed, 20 insertions(+), 2 deletions(-)
>  create mode 100644 arch/arm/mach-imx/mx8m/Kconfig
> 
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index 30e71b2569..e579986d14 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -588,6 +588,12 @@ config ARCH_MESON
>  	  targeted at media players and tablet computers. We currently
>  	  support the S905 (GXBaby) 64-bit SoC.
>  
> +config ARCH_MX8M
> +	bool "NXP i.MX8M platform"
> +	select ARM64
> +	select DM
> +	select SUPPORT_SPL
> +

I think we should start from the beginning with support for multiple
variants of the processor. I know there will be at least i.MX8 and
i.MX8M, but I suppose that I am not well informed and many variants will
come, exactly as we had with i.MX6.

So we need a hierarchy: first the SOC family, then the SOC variant: MX8
and MX8M (or whatever).

But in the patches, it is not clear because ARCH = SOC = M8M.

Which variants are already known ? As far as I can see, at least Quad,
QuadMax and QuadPlus.


>  config ARCH_MX25
>  	bool "NXP MX25"
>  	select CPU_ARM926EJS
> @@ -1157,6 +1163,8 @@ source "arch/arm/cpu/armv7/ls102xa/Kconfig"
>  
>  source "arch/arm/mach-imx/mx2/Kconfig"
>  
> +source "arch/arm/mach-imx/mx8m/Kconfig"
> +
>  source "arch/arm/mach-imx/mx7ulp/Kconfig"
>  
>  source "arch/arm/mach-imx/mx7/Kconfig"
> diff --git a/arch/arm/Makefile b/arch/arm/Makefile
> index 5f1caf8f86..4db0398dde 100644
> --- a/arch/arm/Makefile
> +++ b/arch/arm/Makefile
> @@ -95,11 +95,11 @@ libs-y += arch/arm/cpu/
>  libs-y += arch/arm/lib/
>  
>  ifeq ($(CONFIG_SPL_BUILD),y)
> -ifneq (,$(CONFIG_MX23)$(CONFIG_MX28)$(CONFIG_MX35)$(filter $(SOC), mx25 mx5 mx6 mx7 mx35))
> +ifneq (,$(CONFIG_MX23)$(CONFIG_MX28)$(CONFIG_MX35)$(filter $(SOC), mx25 mx5 mx6 mx7 mx35 mx8m))
>  libs-y += arch/arm/mach-imx/
>  endif
>  else
> -ifneq (,$(filter $(SOC), mx25 mx27 mx5 mx6 mx7 mx7ulp mx31 mx35 mxs vf610))
> +ifneq (,$(filter $(SOC), mx25 mx27 mx5 mx6 mx7 mx7ulp mx31 mx35 mxs mx8m vf610))
>  libs-y += arch/arm/mach-imx/
>  endif
>  endif
> diff --git a/arch/arm/mach-imx/mx8m/Kconfig b/arch/arm/mach-imx/mx8m/Kconfig
> new file mode 100644
> index 0000000000..3a84c2f2b0
> --- /dev/null
> +++ b/arch/arm/mach-imx/mx8m/Kconfig
> @@ -0,0 +1,10 @@
> +if ARCH_MX8M
> +
> +config MX8M
> +	bool
> +	select ROM_UNIFIED_SECTIONS
> +
> +config SYS_SOC
> +	default "mx8m"
> +
> +endif
> 

Best regards,
Stefano

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