[U-Boot] [PATCH 1/4] armv8: usec2ticks function defined

usec2ticks() function has been defined for ARMv8 which will be used by SEC Driver.

Signed-off-by: Aneesh Bansal aneesh.bansal@freescale.com --- arch/arm/cpu/armv8/generic_timer.c | 11 +++++++++++ 1 file changed, 11 insertions(+)

diff --git a/arch/arm/cpu/armv8/generic_timer.c b/arch/arm/cpu/armv8/generic_timer.c index 8e60bae..8f47a82 100644 --- a/arch/arm/cpu/armv8/generic_timer.c +++ b/arch/arm/cpu/armv8/generic_timer.c @@ -40,3 +40,14 @@ unsigned long timer_read_counter(void) #endif return cntpct; } + +unsigned long usec2ticks(unsigned long usec) +{ + ulong ticks; + if (usec < 1000) + ticks = ((usec * (get_tbclk()/1000)) + 500) / 1000; + else + ticks = ((usec / 10) * (get_tbclk() / 100000)); + + return ticks; +}