[PATCH v4 13/20] arm64: dts: hi3660: add sp804 timer node

[Guodong Xu]

From: Leo Yan <leo.yan at linaro.org>

The Hi3660 SoC comes with the sp804 timer in addition to the
architecture timers. These ones are shutdown when reaching a deep idle
states and a backup timer is needed. The sp804 belongs to another power
domain and can fulfill the purpose of replacing temporarily an
architecture timer when the CPU is idle.

Describe it in the device tree, so it can be enabled at boot time.

Suggested-by: Daniel Lezcano <daniel.lezcano at linaro.org>
Acked-by: Daniel Lezcano <daniel.lezcano at linaro.org>
Signed-off-by: Leo Yan <leo.yan at linaro.org>
---
 arch/arm64/boot/dts/hisilicon/hi3660.dtsi | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
index a6b91f1..e138973 100644
--- a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
@@ -186,6 +186,17 @@
 			#reset-cells = <2>;
 		};
 
+		dual_timer0: timer at fff14000 {
+			compatible = "arm,sp804", "arm,primecell";
+			reg = <0x0 0xfff14000 0x0 0x1000>;
+			interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&crg_ctrl HI3660_OSC32K>,
+				 <&crg_ctrl HI3660_OSC32K>,
+				 <&crg_ctrl HI3660_OSC32K>;
+			clock-names = "timer1", "timer2", "apb_pclk";
+		};
+
 		i2c0: i2c at ffd71000 {
 			compatible = "snps,designware-i2c";
 			reg = <0x0 0xffd71000 0x0 0x1000>;
-- 
2.10.2