[POWERPC] todc: add support for Time-Of-Day-Clock

This is a resubmit with a proper subject and with all comments addressed.
Applies cleanly to powerpc.git 649e85797259162f7fdc696420e7492f20226f2d

Mark
--

The todc code from arch/ppc supports many todc/rtc chips and is needed
in arch/powerpc.  This patch adds the todc code to arch/powerpc.

Signed-off-by: Mark A. Greer <mgreer@mvista.com>
--

 arch/powerpc/Kconfig         |    7
 arch/powerpc/sysdev/Makefile |    1
 arch/powerpc/sysdev/todc.c   |  392 ++++++++++++++++++++++++++++++++++
 include/asm-powerpc/todc.h   |  487 +++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 887 insertions(+)
--
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 0b5e225c2d51..e898da2381aa 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -563,6 +563,13 @@ config TAU_AVERAGE
           /proc/cpuinfo.
 
           If in doubt, say N here.
+
+config PPC_TODC
+        depends on EMBEDDED6xx
+        bool "Generic Time-of-day Clock (TODC) support"
+        ---help---
+          This adds support for many TODC/RTC chips.
+
 endmenu
 
 source arch/powerpc/platforms/embedded6xx/Kconfig