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From: Sudeep Holla <sudeep.holla@arm.com>
To: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Cc: Rob Herring <robh+dt@kernel.org>,
	Linus Walleij <linus.walleij@linaro.org>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	devicetree@vger.kernel.org, punit1.agrawal@toshiba.co.jp,
	linux-gpio@vger.kernel.org, yuji2.ishikawa@toshiba.co.jp,
	linux-arm-kernel@lists.infradead.org,
	Sudeep Holla <sudeep.holla@arm.com>
Subject: Re: [PATCH 6/8] arm64: dts: visconti: Add device tree for TMPV7708 RM main board
Date: Mon, 17 Aug 2020 09:23:25 +0100	[thread overview]
Message-ID: <20200817082325.GA7057@bogus> (raw)
In-Reply-To: <20200817014632.595898-7-nobuhiro1.iwamatsu@toshiba.co.jp>

On Mon, Aug 17, 2020 at 10:46:30AM +0900, Nobuhiro Iwamatsu wrote:
> Add basic support for the Visconti TMPV7708 SoC peripherals -
>   - CPU
>     - CA53 x 4 and 2 cluster.
>     - not support PSCI, currently only spin-table is supported.

Do you have plans to support PSCI in future ?
It is now almost more than 5 year old specification. So they should be
strong reason for not supporting that.


[..]

> diff --git a/arch/arm64/boot/dts/toshiba/Makefile b/arch/arm64/boot/dts/toshiba/Makefile
> new file mode 100644
> index 000000000000..8cd460d5b68e
> --- /dev/null
> +++ b/arch/arm64/boot/dts/toshiba/Makefile
> @@ -0,0 +1,2 @@
> +# SPDX-License-Identifier: GPL-2.0
> +dtb-$(CONFIG_ARCH_VISCONTI) += tmpv7708-rm-mbrc.dtb
> diff --git a/arch/arm64/boot/dts/toshiba/tmpv7708-rm-mbrc.dts b/arch/arm64/boot/dts/toshiba/tmpv7708-rm-mbrc.dts
> new file mode 100644
> index 000000000000..a883d3ab1858
> --- /dev/null
> +++ b/arch/arm64/boot/dts/toshiba/tmpv7708-rm-mbrc.dts
> @@ -0,0 +1,44 @@

[..]

> +
> +	timer {
> +		compatible = "arm,armv8-timer";
> +		interrupt-parent = <&gic>;
> +		always-on;

Will this be true when CPU is in low power modes ?

-- 
Regards,
Sudeep

WARNING: multiple messages have this Message-ID (diff)
From: Sudeep Holla <sudeep.holla@arm.com>
To: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Cc: devicetree@vger.kernel.org, punit1.agrawal@toshiba.co.jp,
	Catalin Marinas <catalin.marinas@arm.com>,
	Linus Walleij <linus.walleij@linaro.org>,
	yuji2.ishikawa@toshiba.co.jp, linux-gpio@vger.kernel.org,
	Rob Herring <robh+dt@kernel.org>,
	Sudeep Holla <sudeep.holla@arm.com>,
	Will Deacon <will@kernel.org>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 6/8] arm64: dts: visconti: Add device tree for TMPV7708 RM main board
Date: Mon, 17 Aug 2020 09:23:25 +0100	[thread overview]
Message-ID: <20200817082325.GA7057@bogus> (raw)
In-Reply-To: <20200817014632.595898-7-nobuhiro1.iwamatsu@toshiba.co.jp>

On Mon, Aug 17, 2020 at 10:46:30AM +0900, Nobuhiro Iwamatsu wrote:
> Add basic support for the Visconti TMPV7708 SoC peripherals -
>   - CPU
>     - CA53 x 4 and 2 cluster.
>     - not support PSCI, currently only spin-table is supported.

Do you have plans to support PSCI in future ?
It is now almost more than 5 year old specification. So they should be
strong reason for not supporting that.


[..]

> diff --git a/arch/arm64/boot/dts/toshiba/Makefile b/arch/arm64/boot/dts/toshiba/Makefile
> new file mode 100644
> index 000000000000..8cd460d5b68e
> --- /dev/null
> +++ b/arch/arm64/boot/dts/toshiba/Makefile
> @@ -0,0 +1,2 @@
> +# SPDX-License-Identifier: GPL-2.0
> +dtb-$(CONFIG_ARCH_VISCONTI) += tmpv7708-rm-mbrc.dtb
> diff --git a/arch/arm64/boot/dts/toshiba/tmpv7708-rm-mbrc.dts b/arch/arm64/boot/dts/toshiba/tmpv7708-rm-mbrc.dts
> new file mode 100644
> index 000000000000..a883d3ab1858
> --- /dev/null
> +++ b/arch/arm64/boot/dts/toshiba/tmpv7708-rm-mbrc.dts
> @@ -0,0 +1,44 @@

[..]

> +
> +	timer {
> +		compatible = "arm,armv8-timer";
> +		interrupt-parent = <&gic>;
> +		always-on;

Will this be true when CPU is in low power modes ?

-- 
Regards,
Sudeep

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2020-08-17  8:23 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-17  1:46 [PATCH 0/8] Add Toshiba Visconti ARM64 Platform support Nobuhiro Iwamatsu
2020-08-17  1:46 ` Nobuhiro Iwamatsu
2020-08-17  1:46 ` [PATCH 1/8] dt-bindings: pinctrl: Add bindings for Toshiba Visconti TMPV7700 SoC Nobuhiro Iwamatsu
2020-08-17  1:46   ` Nobuhiro Iwamatsu
2020-08-17 19:46   ` Rob Herring
2020-08-17 19:46     ` Rob Herring
2020-08-19  5:33     ` Nobuhiro Iwamatsu
2020-08-19  5:33       ` Nobuhiro Iwamatsu
2020-08-17 19:48   ` Rob Herring
2020-08-17 19:48     ` Rob Herring
2020-08-19  5:35     ` Nobuhiro Iwamatsu
2020-08-19  5:35       ` Nobuhiro Iwamatsu
2020-08-17  1:46 ` [PATCH 2/8] pinctrl: visconti: Add Toshiba Visconti SoCs pinctrl support Nobuhiro Iwamatsu
2020-08-17  1:46   ` Nobuhiro Iwamatsu
2020-08-17  1:46 ` [PATCH 3/8] dt-bindings: arm: toshiba: add Toshiba Visconti ARM SoCs Nobuhiro Iwamatsu
2020-08-17  1:46   ` Nobuhiro Iwamatsu
2020-08-17  1:46 ` [PATCH 4/8] dt-bindings: arm: toshiba: Add the TMPV7708 RM main board Nobuhiro Iwamatsu
2020-08-17  1:46   ` Nobuhiro Iwamatsu
2020-08-17  1:46 ` [PATCH 5/8] arm64: visconti: Add initial support for Toshiba Visconti platform Nobuhiro Iwamatsu
2020-08-17  1:46   ` Nobuhiro Iwamatsu
2020-08-17  1:46 ` [PATCH 6/8] arm64: dts: visconti: Add device tree for TMPV7708 RM main board Nobuhiro Iwamatsu
2020-08-17  1:46   ` Nobuhiro Iwamatsu
2020-08-17  8:23   ` Sudeep Holla [this message]
2020-08-17  8:23     ` Sudeep Holla
2020-08-19  4:58     ` Nobuhiro Iwamatsu
2020-08-19  4:58       ` Nobuhiro Iwamatsu
2020-08-17  9:00   ` Marc Zyngier
2020-08-17  9:00     ` Marc Zyngier
2020-08-19  5:32     ` Nobuhiro Iwamatsu
2020-08-19  5:32       ` Nobuhiro Iwamatsu
2020-08-17  1:46 ` [PATCH 7/8] MAINTAINERS: Add information for Toshiba Visconti ARM SoCs Nobuhiro Iwamatsu
2020-08-17  1:46   ` Nobuhiro Iwamatsu
2020-08-17  1:46 ` [PATCH 8/8] arm64: defconfig: Enable configs for Toshiba Visconti Nobuhiro Iwamatsu
2020-08-17  1:46   ` Nobuhiro Iwamatsu

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