[U-Boot] [RFC PATCH 03/10] sunxi: provide default DRAM config for sun50i in Kconfig
Andre Przywara
andre.przywara at arm.com
Thu Nov 3 10:10:51 CET 2016
Hi,
On 03/11/16 08:54, Alexander Graf wrote:
> 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 at 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.
Oh, right, looks like a rebase artifact, since I juggled the patches
around quite a bit. It belongs to patch 10/10, I guess.
Cheers,
Andre.
>> ---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
>
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