On 16:50-20130918, Sricharan R wrote: > The real time counter also called master counter, is a free-running > counter. It produces the count used by the CPU local timer peripherals > in the MPU cluster. The timer counts at a rate of 6.144 MHz. > > The ratio registers are missing for a sys-clk of 20MHZ which is used > by DRA7 socs. So because of this, the counter was getting wrongly > programmed for a sys-clk of 38.4Mhz(default). So adding the ratio > registers for 20MHZ sys-clk. > > Cc: Santosh Shilimkar <santosh.shilimkar@xxxxxx> > Signed-off-by: Sricharan R <r.sricharan@xxxxxx> Tested-by: Nishanth Menon <nm@xxxxxx> platform: DRA7-evm > --- > arch/arm/mach-omap2/timer.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c > index e1528a0..fd9238d 100644 > --- a/arch/arm/mach-omap2/timer.c > +++ b/arch/arm/mach-omap2/timer.c > @@ -515,6 +515,10 @@ static void __init realtime_counter_init(void) > num = 8; > den = 25; > break; > + case 20000000: > + num = 192; > + den = 625; > + break; > case 2600000: > num = 384; > den = 1625; > -- > 1.7.9.5 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-omap" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Regards, Nishanth Menon -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
