Introduce common timer functions
Many platforms duplicate pretty much the same timer code yet they all have
a 32-bit freerunning counter register. Create a common implementation that
minimally requires 2 or 3 defines to add timer support:
CONFIG_SYS_TIMER_RATE - Clock rate of the timer counter
CONFIG_SYS_TIMER_COUNTER - Address of 32-bit counter
CONFIG_SYS_TIMER_COUNTS_DOWN - Define if counter counts down
All functions are weak or ifdef'ed so they can still be overriden by any
platform.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
diff --git a/include/asm-generic/global_data.h b/include/asm-generic/global_data.h
index 77e06fb..0de0bea 100644
--- a/include/asm-generic/global_data.h
+++ b/include/asm-generic/global_data.h
@@ -72,6 +72,8 @@
#if defined(CONFIG_SYS_I2C)
int cur_i2c_bus; /* current used i2c bus */
#endif
+ unsigned long timebase_h;
+ unsigned long timebase_l;
struct arch_global_data arch; /* architecture-specific data */
} gd_t;
#endif