diff options
| author | Jon Hunter <jonathanh@nvidia.com> | 2020-07-12 11:25:05 +0100 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2020-07-15 11:07:39 +0200 |
| commit | 579db6e5d9b8cae1094a67809fb02ddede28ba09 (patch) | |
| tree | f2f3fcd832cedcfc9b475f0c5b4e5899d83a093e /arch/arm64/boot | |
| parent | 3f9efbbe57bc6e999f6f4d389da289f2733f0261 (diff) | |
arm64: tegra: Enable DFLL support on Jetson Nano
Populate the DFLL node and corresponding PWM pin nodes in order to
enable CPUFREQ support on the Jetson Nano platform.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'arch/arm64/boot')
| -rw-r--r-- | arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts b/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts index 9b6346917ea9..2282ea1c6279 100644 --- a/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts +++ b/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts @@ -111,6 +111,22 @@ status = "okay"; }; + pinmux@700008d4 { + dvfs_pwm_active_state: dvfs_pwm_active { + dvfs_pwm_pbb1 { + nvidia,pins = "dvfs_pwm_pbb1"; + nvidia,tristate = <TEGRA_PIN_DISABLE>; + }; + }; + + dvfs_pwm_inactive_state: dvfs_pwm_inactive { + dvfs_pwm_pbb1 { + nvidia,pins = "dvfs_pwm_pbb1"; + nvidia,tristate = <TEGRA_PIN_ENABLE>; + }; + }; + }; + /* debug port */ serial@70006000 { status = "okay"; @@ -584,6 +600,27 @@ hvdd-usb-supply = <&vdd_1v8>; }; + clock@70110000 { + status = "okay"; + + nvidia,cf = <6>; + nvidia,ci = <0>; + nvidia,cg = <2>; + nvidia,droop-ctrl = <0x00000f00>; + nvidia,force-mode = <1>; + nvidia,sample-rate = <25000>; + + nvidia,pwm-min-microvolts = <708000>; + nvidia,pwm-period-nanoseconds = <2500>; /* 2.5us */ + nvidia,pwm-to-pmic; + nvidia,pwm-tristate-microvolts = <1000000>; + nvidia,pwm-voltage-step-microvolts = <19200>; + + pinctrl-names = "dvfs_pwm_enable", "dvfs_pwm_disable"; + pinctrl-0 = <&dvfs_pwm_active_state>; + pinctrl-1 = <&dvfs_pwm_inactive_state>; + }; + clk32k_in: clock@0 { compatible = "fixed-clock"; clock-frequency = <32768>; |