[U-Boot] [RFC PATCH 03/10] sunxi: provide default DRAM config for sun50i in Kconfig

[Alexander Graf <agraf@suse.de>]

On 11/03/2016 02:36 AM, Andre Przywara wrote:
> To avoid enumerating the very same DRAM values in defconfig files
> for each and every Allwinner A64 board out there, let's put some sane
> default values in the Kconfig file.
> Boards with different needs can override them at any time.
>
> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
> ---
>   board/sunxi/Kconfig           | 3 +++
>   configs/pine64_plus_defconfig | 2 --
>   2 files changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/board/sunxi/Kconfig b/board/sunxi/Kconfig
> index e1d4ab1..d281a65 100644
> --- a/board/sunxi/Kconfig
> +++ b/board/sunxi/Kconfig
> @@ -145,6 +145,7 @@ config DRAM_CLK
>   	default 792 if MACH_SUN9I
>   	default 312 if MACH_SUN6I || MACH_SUN8I
>   	default 360 if MACH_SUN4I || MACH_SUN5I || MACH_SUN7I
> +	default 672 if MACH_SUN50I
>   	---help---
>   	Set the dram clock speed, valid range 240 - 480 (prior to sun9i),
>   	must be a multiple of 24. For the sun9i (A80), the tested values
> @@ -164,6 +165,7 @@ config DRAM_ZQ
>   	default 123 if MACH_SUN4I || MACH_SUN5I || MACH_SUN6I || MACH_SUN8I
>   	default 127 if MACH_SUN7I
>   	default 4145117 if MACH_SUN9I
> +	default 3881915 if MACH_SUN50I
>   	---help---
>   	Set the dram zq value.
>   
> @@ -171,6 +173,7 @@ config DRAM_ODT_EN
>   	bool "sunxi dram odt enable"
>   	default n if !MACH_SUN8I_A23
>   	default y if MACH_SUN8I_A23
> +	default y if MACH_SUN50I

This change isn't obvious. It's not mentioned in the patch description 
or removed from the defconfig.


Alex

>   	---help---
>   	Select this to enable dram odt (on die termination).
>   
> diff --git a/configs/pine64_plus_defconfig b/configs/pine64_plus_defconfig
> index 6d0198f..a53e968 100644
> --- a/configs/pine64_plus_defconfig
> +++ b/configs/pine64_plus_defconfig
> @@ -2,8 +2,6 @@ CONFIG_ARM=y
>   CONFIG_ENABLE_ARM_SOC_BOOT0_HOOK=y
>   CONFIG_ARCH_SUNXI=y
>   CONFIG_MACH_SUN50I=y
> -CONFIG_DRAM_CLK=672
> -CONFIG_DRAM_ZQ=3881915
>   CONFIG_DEFAULT_DEVICE_TREE="sun50i-a64-pine64-plus"
>   # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
>   CONFIG_CONSOLE_MUX=y