[PATCH v4 4/4] mvebu: Dove: Add clocks and DFS interrupt to cpu node in DT.
From: mark.rutland@arm.com (Mark Rutland)
Date: 2013-12-04 14:39:21
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linux-pm
On Wed, Dec 04, 2013 at 02:17:21PM +0000, Andrew Lunn wrote:
quoted hunk ↗ jump to hunk
The dove-cpufreq driver needs access to the DDR and CPU clock. There is also an interrupt generated when the DFS hardware completes a change of frequencey. Add these to the cpu node in DT. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> --- arch/arm/boot/dts/dove.dtsi | 4 ++++ 1 file changed, 4 insertions(+)diff --git a/arch/arm/boot/dts/dove.dtsi b/arch/arm/boot/dts/dove.dtsi index 4c8028513133..3842ba02dddf 100644 --- a/arch/arm/boot/dts/dove.dtsi +++ b/arch/arm/boot/dts/dove.dtsi@@ -22,6 +22,10 @@ device_type = "cpu"; next-level-cache = <&l2>; reg = <0>; + clocks = <&core_clk 1>, <&core_clk 3>; + clock-names = "cpu_clk", "ddrclk"; + interrupt-parent = <&pmu_intc>; + interrupts = <0>;
Is this interrupt actually generated by the CPU, or by the power management unit? Is ddrclk actually fed into the CPU? Given that you seem to have an external L2 I don't see why the CPU would need the DDR clock. Thanks, Mark.