ARM: ks8695: convert to generic time and clocksource

Old platforms using ancient gettimeoffset() and other arcane
APIs are standing in the way of cleaning up the ARM kernel.
The gettimeoffset() was also broken: it would try to read out
the timer counter value, while this would not work (the
counter statically returns the initially programmed value)
so the implementation would anyway fall back to a homebrew
version of jiffie calculation.

This is an attempt at blind-coding a generic time and clocksource
driver for the platform by way of a datasheet and looking at the
old code.

Tested-by: Greg Ungerer <gerg@snapgear.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 6d6e18fee9fe..e9ce0387f3d7 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -652,8 +652,9 @@ config ARCH_KS8695
         bool "Micrel/Kendin KS8695"
         select CPU_ARM922T
         select ARCH_REQUIRE_GPIOLIB
-        select ARCH_USES_GETTIMEOFFSET
         select NEED_MACH_MEMORY_H
+        select CLKSRC_MMIO
+        select GENERIC_CLOCKEVENTS
         help
           Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
           System-on-Chip devices.