[U-Boot] [PATCH] sunxi: makes an invisible option for H3-like DRAM controllers

[André Przywara]

On 14/02/17 13:49, Icenowy Zheng wrote:
> Allwinner SoCs after H3 (e.g. A64, H5, R40, V3s) uses a H3-like
> DesignWare DRAM controller, which do not have official free DRAM
> initialization code, but can use modified dram_sun8i_h3.c.
> 
> Add a invisible option for easier DRAM initialization code reuse.

Thanks for the patch, I like this approach.

> Signed-off-by: Icenowy Zheng <icenowy at aosc.xyz>
> Acked-by: Maxime Ripard <maxime.ripard at free-electrons.com>

Reviewed-by: Andre Przywara <andre.przywara at arm.com>

Cheers,
Andre.

> ---
>  arch/arm/include/asm/arch-sunxi/dram.h                           | 4 ++--
>  .../include/asm/arch-sunxi/{dram_sun8i_h3.h => dram_sunxi_dw.h}  | 0
>  arch/arm/mach-sunxi/Makefile                                     | 2 +-
>  arch/arm/mach-sunxi/{dram_sun8i_h3.c => dram_sunxi_dw.c}         | 0
>  board/sunxi/Kconfig                                              | 9 +++++++++
>  5 files changed, 12 insertions(+), 3 deletions(-)
>  rename arch/arm/include/asm/arch-sunxi/{dram_sun8i_h3.h => dram_sunxi_dw.h} (100%)
>  rename arch/arm/mach-sunxi/{dram_sun8i_h3.c => dram_sunxi_dw.c} (100%)
> 
> diff --git a/arch/arm/include/asm/arch-sunxi/dram.h b/arch/arm/include/asm/arch-sunxi/dram.h
> index 53e6d471d2..6f0131ab16 100644
> --- a/arch/arm/include/asm/arch-sunxi/dram.h
> +++ b/arch/arm/include/asm/arch-sunxi/dram.h
> @@ -24,8 +24,8 @@
>  #include <asm/arch/dram_sun8i_a33.h>
>  #elif defined(CONFIG_MACH_SUN8I_A83T)
>  #include <asm/arch/dram_sun8i_a83t.h>
> -#elif defined(CONFIG_MACH_SUN8I_H3) || defined(CONFIG_MACH_SUN50I)
> -#include <asm/arch/dram_sun8i_h3.h>
> +#elif defined(CONFIG_SUNXI_DW_DRAM)
> +#include <asm/arch/dram_sunxi_dw.h>
>  #elif defined(CONFIG_MACH_SUN9I)
>  #include <asm/arch/dram_sun9i.h>
>  #else
> diff --git a/arch/arm/include/asm/arch-sunxi/dram_sun8i_h3.h b/arch/arm/include/asm/arch-sunxi/dram_sunxi_dw.h
> similarity index 100%
> rename from arch/arm/include/asm/arch-sunxi/dram_sun8i_h3.h
> rename to arch/arm/include/asm/arch-sunxi/dram_sunxi_dw.h
> diff --git a/arch/arm/mach-sunxi/Makefile b/arch/arm/mach-sunxi/Makefile
> index 7daba1169c..25d896a14e 100644
> --- a/arch/arm/mach-sunxi/Makefile
> +++ b/arch/arm/mach-sunxi/Makefile
> @@ -48,7 +48,7 @@ obj-$(CONFIG_MACH_SUN7I)	+= dram_sun4i.o
>  obj-$(CONFIG_MACH_SUN8I_A23)	+= dram_sun8i_a23.o
>  obj-$(CONFIG_MACH_SUN8I_A33)	+= dram_sun8i_a33.o
>  obj-$(CONFIG_MACH_SUN8I_A83T)	+= dram_sun8i_a83t.o
> -obj-$(CONFIG_MACH_SUN8I_H3)	+= dram_sun8i_h3.o
> +obj-$(CONFIG_SUNXI_DW_DRAM)	+= dram_sunxi_dw.o
>  obj-$(CONFIG_MACH_SUN9I)	+= dram_sun9i.o
>  obj-$(CONFIG_MACH_SUN50I)	+= dram_sun8i_h3.o
>  endif
> diff --git a/arch/arm/mach-sunxi/dram_sun8i_h3.c b/arch/arm/mach-sunxi/dram_sunxi_dw.c
> similarity index 100%
> rename from arch/arm/mach-sunxi/dram_sun8i_h3.c
> rename to arch/arm/mach-sunxi/dram_sunxi_dw.c
> diff --git a/board/sunxi/Kconfig b/board/sunxi/Kconfig
> index 018bdd12dd..d09ae6067e 100644
> --- a/board/sunxi/Kconfig
> +++ b/board/sunxi/Kconfig
> @@ -42,6 +42,13 @@ config SUNXI_GEN_SUN6I
>  	separate ahb reset control registers, custom pmic bus, new style
>  	watchdog, etc.
>  
> +config SUNXI_DW_DRAM
> +	bool
> +	---help---
> +	Select this for sunxi SoCs which uses a DRAM controller like the
> +	DesignWare controller used in H3, mainly SoCs after H3, which do
> +	not have official open-source DRAM initialization code, but can
> +	use modified H3 DRAM initialization code.
>  
>  choice
>  	prompt "Sunxi SoC Variant"
> @@ -113,6 +120,7 @@ config MACH_SUN8I_H3
>  	select ARCH_SUPPORT_PSCI
>  	select SUNXI_GEN_SUN6I
>  	select SUPPORT_SPL
> +	select SUNXI_DW_DRAM
>  	select ARMV7_BOOT_SEC_DEFAULT if OLD_SUNXI_KERNEL_COMPAT
>  
>  config MACH_SUN8I_V3S
> @@ -134,6 +142,7 @@ config MACH_SUN50I
>  	select ARM64
>  	select SUNXI_GEN_SUN6I
>  	select SUPPORT_SPL
> +	select SUNXI_DW_DRAM
>  
>  endchoice
>  
>