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author | Olof Johansson <olof@lixom.net> | 2019-06-25 04:37:18 -0700 |
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committer | Olof Johansson <olof@lixom.net> | 2019-06-25 04:37:18 -0700 |
commit | 19339e6a221455b1125bbc90f750daedd6828408 (patch) | |
tree | a55dfb0b6265e3b87245902c04eedf4239435ed0 /arch/arm/boot/dts/da850-lcdk.dts | |
parent | 97dd7871d147f9df8aa909062c94323064e15a82 (diff) | |
parent | 3a4b44d5c032f03cee71a8f2ad5c10ce18b3519b (diff) | |
download | linux-19339e6a221455b1125bbc90f750daedd6828408.tar.bz2 |
Merge tag 'davinci-for-v5.3/dt' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into arm/dt
This pull request adds CPUFreq support for DA850 boards in device-tree
boot using the generic CPUFREQ_DT driver.
* tag 'davinci-for-v5.3/dt' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
ARM: davinci_all_defconfig: Enable CPUFREQ_DT
ARM: dts: da850-evm: enable cpufreq
ARM: dts: da850-lcdk: enable cpufreq
ARM: dts: da850-lego-ev3: enable cpufreq
ARM: dts: da850: add cpu node and operating points to DT
Signed-off-by: Olof Johansson <olof@lixom.net>
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 2fd2a6838dab..e379d6e7ad49 100644 --- a/arch/arm/boot/dts/da850-lcdk.dts +++ b/arch/arm/boot/dts/da850-lcdk.dts @@ -154,12 +154,48 @@ }; }; }; + + 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"; |