[PATCH] ARM: DRA7: realtime_counter: Add ratio registers for 20MHZ sys-clk frequency
Sricharan R
r.sricharan at ti.com
Wed Sep 18 07:20:11 EDT 2013
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 at ti.com>
Signed-off-by: Sricharan R <r.sricharan at ti.com>
---
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
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