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Date: Thu, 7 Apr 2022 15:53:03 -0500 From: Rob Herring <robh+dt@...nel.org> To: Xianwei Zhao <xianwei.zhao@...ogic.com> Cc: linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>, "open list:ARM/Amlogic Meson..." <linux-amlogic@...ts.infradead.org>, devicetree@...r.kernel.org, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Neil Armstrong <narmstrong@...libre.com>, Kevin Hilman <khilman@...libre.com>, Jerome Brunet <jbrunet@...libre.com>, Martin Blumenstingl <martin.blumenstingl@...glemail.com> Subject: Re: [PATCH V4] arm64: dts: add support for S4 based Amlogic AQ222 On Thu, Jan 6, 2022 at 5:22 AM Xianwei Zhao <xianwei.zhao@...ogic.com> wrote: > > Add basic support for the Amlogic S4 based Amlogic AQ222 board: > which describe components as follows: CPU, GIC, IRQ, Timer, UART. > It's capable of booting up into the serial console. > > Signed-off-by: Xianwei Zhao <xianwei.zhao@...ogic.com> > --- > V3 -> V4: cleaned up coding style. > V2 -> V3: add of dts board compatible family. > V1 -> V2: cleaned up coding style, modify CPU affinity of timer interrups, > and modify GIC reg defintions. > --- > arch/arm64/boot/dts/amlogic/Makefile | 1 + > .../dts/amlogic/meson-s4-s805x2-aq222.dts | 30 ++++++ > arch/arm64/boot/dts/amlogic/meson-s4.dtsi | 99 +++++++++++++++++++ > 3 files changed, 130 insertions(+) > create mode 100644 arch/arm64/boot/dts/amlogic/meson-s4-s805x2-aq222.dts > create mode 100644 arch/arm64/boot/dts/amlogic/meson-s4.dtsi > > diff --git a/arch/arm64/boot/dts/amlogic/Makefile b/arch/arm64/boot/dts/amlogic/Makefile > index 5148cd9e5146..faea74a45994 100644 > --- a/arch/arm64/boot/dts/amlogic/Makefile > +++ b/arch/arm64/boot/dts/amlogic/Makefile > @@ -57,3 +57,4 @@ dtb-$(CONFIG_ARCH_MESON) += meson-sm1-odroid-c4.dtb > dtb-$(CONFIG_ARCH_MESON) += meson-sm1-odroid-hc4.dtb > dtb-$(CONFIG_ARCH_MESON) += meson-sm1-sei610.dtb > dtb-$(CONFIG_ARCH_MESON) += meson-a1-ad401.dtb > +dtb-$(CONFIG_ARCH_MESON) += meson-s4-s805x2-aq222.dtb > diff --git a/arch/arm64/boot/dts/amlogic/meson-s4-s805x2-aq222.dts b/arch/arm64/boot/dts/amlogic/meson-s4-s805x2-aq222.dts > new file mode 100644 > index 000000000000..a942d7e06d6e > --- /dev/null > +++ b/arch/arm64/boot/dts/amlogic/meson-s4-s805x2-aq222.dts > @@ -0,0 +1,30 @@ > +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) > +/* > + * Copyright (c) 2021 Amlogic, Inc. All rights reserved. > + */ > + > +/dts-v1/; > + > +#include "meson-s4.dtsi" > + > +/ { > + model = "Amlogic Meson S4 AQ222 Development Board"; > + compatible = "amlogic,aq222", "amlogic,s4"; > + interrupt-parent = <&gic>; > + #address-cells = <2>; > + #size-cells = <2>; > + > + aliases { > + serial0 = &uart_B; > + }; > + > + memory@...00000 { > + device_type = "memory"; > + reg = <0x0 0x0 0x0 0x40000000>; > + }; > + > +}; > + > +&uart_B { > + status = "okay"; > +}; > diff --git a/arch/arm64/boot/dts/amlogic/meson-s4.dtsi b/arch/arm64/boot/dts/amlogic/meson-s4.dtsi > new file mode 100644 > index 000000000000..bf9ae1e1016b > --- /dev/null > +++ b/arch/arm64/boot/dts/amlogic/meson-s4.dtsi > @@ -0,0 +1,99 @@ > +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) > +/* > + * Copyright (c) 2021 Amlogic, Inc. All rights reserved. > + */ > + > +#include <dt-bindings/interrupt-controller/irq.h> > +#include <dt-bindings/interrupt-controller/arm-gic.h> > + > +/ { > + cpus { > + #address-cells = <2>; > + #size-cells = <0>; > + > + cpu0: cpu@0 { > + device_type = "cpu"; > + compatible = "arm,cortex-a35","arm,armv8"; I see this is already applied, but 'arm,armv8' is only valid for s/w models. Please send a fix. Rob
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