Hi Christian, On 2020-07-19 16:10, Christian Hewitt wrote: > HardKernel ODROID-N2+ uses an Amlogic S922X rev. C chip capable of higher > clock speeds than the original ODROID-N2. Hardkernel supports the big cpu > cluster at 2.4GHz and the little cpu cluster at 2.0GHz. Opp points and > regulator changess are from the HardKernel Linux kernel sources. According to the ODROID wiki those values are already in the overclocking range: https://wiki.odroid.com/odroid-n2/hardware/overclocking >From what I can tell, for ODROID-N2 upstream Linux so far used defaults from meson-g12b-s922x.dtsi, which were 1896MHz for the A53 and 1704MHz for the A73 (so it seems currently the A73 running even 100MHz below "Stock"). I guess we should pick either Stock or Overclock for the two models. Unless there is another good reason not to? -- Stefan > > Suggested-by: Dongjin Kim <tobetter@xxxxxxxxxxxxxx> > Signed-off-by: Christian Hewitt <christianshewitt@xxxxxxxxx> > --- > arch/arm64/boot/dts/amlogic/Makefile | 1 + > .../dts/amlogic/meson-g12b-odroid-n2-plus.dts | 53 +++++++++++++++++++ > 2 files changed, 54 insertions(+) > create mode 100644 arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2-plus.dts > > diff --git a/arch/arm64/boot/dts/amlogic/Makefile > b/arch/arm64/boot/dts/amlogic/Makefile > index 5cac4d1d487d..6dc508b80133 100644 > --- a/arch/arm64/boot/dts/amlogic/Makefile > +++ b/arch/arm64/boot/dts/amlogic/Makefile > @@ -8,6 +8,7 @@ dtb-$(CONFIG_ARCH_MESON) += meson-g12b-gtking-pro.dtb > dtb-$(CONFIG_ARCH_MESON) += meson-g12b-a311d-khadas-vim3.dtb > dtb-$(CONFIG_ARCH_MESON) += meson-g12b-s922x-khadas-vim3.dtb > dtb-$(CONFIG_ARCH_MESON) += meson-g12b-odroid-n2.dtb > +dtb-$(CONFIG_ARCH_MESON) += meson-g12b-odroid-n2-plus.dtb > dtb-$(CONFIG_ARCH_MESON) += meson-g12b-ugoos-am6.dtb > dtb-$(CONFIG_ARCH_MESON) += meson-gxbb-kii-pro.dtb > dtb-$(CONFIG_ARCH_MESON) += meson-gxbb-nanopi-k2.dtb > diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2-plus.dts > b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2-plus.dts > new file mode 100644 > index 000000000000..99e96be509f8 > --- /dev/null > +++ b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2-plus.dts > @@ -0,0 +1,53 @@ > +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) > +/* > + * Copyright (c) 2019 BayLibre, SAS > + * Author: Neil Armstrong <narmstrong@xxxxxxxxxxxx> > + */ > + > +/dts-v1/; > + > +#include "meson-g12b-odroid-n2.dtsi" > + > +/ { > + compatible = "hardkernel,odroid-n2-plus", "amlogic,s922x", "amlogic,g12b"; > + model = "Hardkernel ODROID-N2+"; > + > + vddcpu_a: regulator-vddcpu-a { > + regulator-min-microvolt = <680000>; > + regulator-max-microvolt = <1040000>; > + > + pwms = <&pwm_ab 0 1500 0>; > + }; > + > + vddcpu_b: regulator-vddcpu-b { > + regulator-min-microvolt = <680000>; > + regulator-max-microvolt = <1040000>; > + > + pwms = <&pwm_AO_cd 1 1500 0>; > + }; > + > + cpu_opp_table_0: opp-table-0 { > + opp-1908000000 { > + opp-hz = /bits/ 64 <1908000000>; > + opp-microvolt = <1030000>; > + }; > + > + opp-2016000000 { > + opp-hz = /bits/ 64 <2016000000>; > + opp-microvolt = <1040000>; > + }; > + }; > + > + cpub_opp_table_1: opp-table-1 { > + opp-2304000000 { > + opp-hz = /bits/ 64 <2304000000>; > + opp-microvolt = <1030000>; > + }; > + > + opp-2400000000 { > + opp-hz = /bits/ 64 <2400000000>; > + opp-microvolt = <1040000>; > + }; > + }; > +}; > +
