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| author | David Lechner <david@lechnology.com> | 2019-05-27 11:22:57 +0300 |
|---|---|---|
| committer | Sekhar Nori <nsekhar@ti.com> | 2019-06-14 15:52:37 +0300 |
| commit | fdf1b274610428dd4e5d296cc4c414f0c97ecc33 (patch) | |
| tree | 926e9498047d5bd6f73b432d69aa5b334982c0c6 /arch/arm/boot/dts/da850-lcdk.dts | |
| parent | 3975205ac334373efe65641482ef42ff3fec80af (diff) | |
| download | linux-fdf1b274610428dd4e5d296cc4c414f0c97ecc33.tar.xz | |
ARM: dts: da850-lcdk: enable cpufreq
Add a fixed regulator for the da850-lcdk board along with board-specific
CPU configuration.
Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Diffstat (limited to 'arch/arm/boot/dts/da850-lcdk.dts')
| -rw-r--r-- | arch/arm/boot/dts/da850-lcdk.dts | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/da850-lcdk.dts b/arch/arm/boot/dts/da850-lcdk.dts index 26f453dc8370..b36d5e36bcf1 100644 --- a/arch/arm/boot/dts/da850-lcdk.dts +++ b/arch/arm/boot/dts/da850-lcdk.dts @@ -155,12 +155,48 @@ }; }; }; + + cvdd: regulator0 { + compatible = "regulator-fixed"; + regulator-name = "cvdd"; + regulator-min-microvolt = <1300000>; + regulator-max-microvolt = <1300000>; + regulator-always-on; + regulator-boot-on; + }; }; &ref_clk { clock-frequency = <24000000>; }; +&cpu { + cpu-supply = <&cvdd>; +}; + +/* + * LCDK has a fixed CVDD of 1.3V, so only operating points >= 300MHz are + * valid. Unfortunately due to a problem with the DA8XX OHCI controller, we + * can't enable more than one OPP by default, since the controller sometimes + * becomes unresponsive after a transition. Fix the frequency at 456 MHz. + */ + +&opp_100 { + status = "disabled"; +}; + +&opp_200 { + status = "disabled"; +}; + +&opp_300 { + status = "disabled"; +}; + +&opp_456 { + status = "okay"; +}; + &pmx_core { status = "okay"; |