[U-Boot] [RFC PATCH 03/13] arm: move SYS_ARCH_TIMER to KConfig

[Tuomas Tynkkynen]

Hi Andre,

On 11/30/2017 03:25 AM, Andre Przywara wrote:
> SYS_ARCH_TIMER guards the usage of the ARM Generic Timer (aka arch
> timer) in U-Boot.
> At the moment it is mandatory for ARMv8 and used by two ARMv7 boards.
> Add a proper Kconfig symbol to express this dependency properly,
> allowing certain board configuration to later disable arch timer in case
> there are any problems with it.
> 
> Signed-off-by: Andre Przywara <andre.przywara at arm.com>
> ---
>   arch/arm/Kconfig                     | 11 +++++++++++
>   arch/arm/cpu/armv8/Makefile          |  2 +-
>   arch/arm/mach-imx/mx7ulp/Kconfig     |  1 +
>   include/configs/mx7ulp_evk.h         |  1 -
>   include/configs/ti_armv7_keystone2.h |  1 -
>   scripts/config_whitelist.txt         |  1 -
>   6 files changed, 13 insertions(+), 4 deletions(-)

This patch needs refreshing, as on master there are more usages of the
symbol that need conversion:

include/configs/qemu-arm.h:#define CONFIG_SYS_ARCH_TIMER
include/configs/stm32h743-disco.h:#define CONFIG_SYS_ARCH_TIMER
include/configs/stm32h743-eval.h:#define CONFIG_SYS_ARCH_TIMER

Otherwise looks good.