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[v3,09/12] arm: zynq: Add smp_twd timer

Message ID 4a98ba06bb10c524b9ab951608eb955360229995.1364488495.git.michal.simek@xilinx.com (mailing list archive)
State New, archived
Headers show

Commit Message

Michal Simek March 28, 2013, 4:38 p.m. UTC 
The zynq has a Cortex-A9 with the corresponding smp_twd timers. Use them.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---
v3: New patch for this series to avoid bug in hotplug
Warning log:
zynq> echo 1 > /sys/devices/system/cpu/cpu1/online
CPU1: Booted secondary processor
Clockevents: could not switch to one-shot mode: dummy_timer is not functional.
Could not switch to high resolution mode on CPU 1
---
 arch/arm/boot/dts/zynq-7000.dtsi |    7 +++++++
 1 file changed, 7 insertions(+)
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Patch

diff --git a/arch/arm/boot/dts/zynq-7000.dtsi b/arch/arm/boot/dts/zynq-7000.dtsi
index 748fc34..14fb2e6 100644
--- a/arch/arm/boot/dts/zynq-7000.dtsi
+++ b/arch/arm/boot/dts/zynq-7000.dtsi
@@ -136,5 +136,12 @@ 
 			clock-names = "cpu_1x";
 			clock-ranges;
 		};
+		scutimer: scutimer@f8f00600 {
+			interrupt-parent = <&intc>;
+			interrupts = < 1 13 0x301 >;
+			compatible = "arm,cortex-a9-twd-timer";
+			reg = < 0xf8f00600 0x20 >;
+			clocks = <&cpu_clk 1>;
+		} ;
 	};
 };