linux-kernel - Re: [PATCH 2/5] arm64, thunder: Add initial dts for Cavium Thunder SoC

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Message-ID: <CAOesGMj9PnfddJO7PorZ7U2OoBFBe4LqONRnbJeMiEkQV1mmWw@mail.gmail.com>
Date:	Wed, 30 Jul 2014 11:12:17 -0700
From:	Olof Johansson <olof@...om.net>
To:	Robert Richter <rric@...nel.org>
Cc:	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	Rob Herring <robh+dt@...nel.org>,
	Arnd Bergmann <arnd@...db.de>, Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Radha Mohan Chintakuntla <rchintakuntla@...ium.com>,
	Robert Richter <rrichter@...ium.com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: Re: [PATCH 2/5] arm64, thunder: Add initial dts for Cavium Thunder SoC

On Wed, Jul 30, 2014 at 8:06 AM, Robert Richter <rric@...nel.org> wrote:
> From: Radha Mohan Chintakuntla <rchintakuntla@...ium.com>
>
> Add initial device tree nodes for Cavium Thunder SoCs with support of
> 48 cores and gicv3. The dts file requires further changes, esp. for
> pci, gicv3-its and smmu. This changes will be added later together
> with the device drivers.
>
> Signed-off-by: Radha Mohan Chintakuntla <rchintakuntla@...ium.com>
> Signed-off-by: Robert Richter <rrichter@...ium.com>
> ---
>  arch/arm64/boot/dts/Makefile         |   1 +
>  arch/arm64/boot/dts/thunder-88xx.dts | 387 +++++++++++++++++++++++++++++++++++
>  2 files changed, 388 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/thunder-88xx.dts
>
> diff --git a/arch/arm64/boot/dts/Makefile b/arch/arm64/boot/dts/Makefile
> index c52bdb051f66..f8001a62029c 100644
> --- a/arch/arm64/boot/dts/Makefile
> +++ b/arch/arm64/boot/dts/Makefile
> @@ -1,3 +1,4 @@
> +dtb-$(CONFIG_ARCH_THUNDER) += thunder-88xx.dtb
>  dtb-$(CONFIG_ARCH_VEXPRESS) += rtsm_ve-aemv8a.dtb foundation-v8.dtb
>  dtb-$(CONFIG_ARCH_XGENE) += apm-mustang.dtb
>
> diff --git a/arch/arm64/boot/dts/thunder-88xx.dts b/arch/arm64/boot/dts/thunder-88xx.dts
> new file mode 100644
> index 000000000000..4cf20ac9138b
> --- /dev/null
> +++ b/arch/arm64/boot/dts/thunder-88xx.dts
> @@ -0,0 +1,387 @@
> +/*
> + * Cavium Thunder DTS file
> + *
> + * Copyright (C) 2013, Cavium Inc.
> + *
> + * This program is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU General Public License as
> + * published by the Free Software Foundation; either version 2 of
> + * the License, or (at your option) any later version.
> + */
> +/dts-v1/;
> +
> +/* Reserving first 12MB of DDR for firmware */
> +/memreserve/ 0x00000000 0x00c00000;
> +
> +/ {
> +       model = "Cavium ThunderX CN88XX Family";
> +       compatible = "cavium,thunder-88xx";

Hmm. I take it this platform is compliant with some level of SBSA? We
should probably have a compatible value for that so that platforms can
communicate it.

Mark, are there already plans for this?


-Olof
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