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ARM: zynq: dt: Add a fixed regulator for CPU voltage

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To silence the warning
	cpufreq_cpu0: failed to get cpu0 regulator: -19
from the cpufreq driver regarding a missing regulator,
add a fixed regulator to the DT.
Zynq does not support voltage scaling and the CPU rail should always be
supplied with 1 V, hence it is added in the SOC-level dtsi.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Soren Brinkmann 2014-05-02 14:07:32 -07:00 committed by Michal Simek
parent f7b1e9b5bc
commit e1e22df138
1 changed files with 10 additions and 0 deletions
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10
arch/arm/boot/dts/zynq-7000.dtsi
View file

@ -25,6 +25,7 @@ cpu@0 {
reg = <0>;
clocks = <&clkc 3>;
clock-latency = <1000>;
cpu0-supply = <&regulator_vccpint>;
operating-points = <
/* kHz uV */
666667 1000000
@ -48,6 +49,15 @@ pmu {
reg = < 0xf8891000 0x1000 0xf8893000 0x1000 >;
};
regulator_vccpint: fixedregulator@0 {
compatible = "regulator-fixed";
regulator-name = "VCCPINT";
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-boot-on;
regulator-always-on;
};
amba {
compatible = "simple-bus";
#address-cells = <1>;