linux-kernel - Re: [RFC] ARM: BCM: Add SMP support for Broadcom 4708

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Date:	Thu, 15 Oct 2015 11:35:14 -0700
From:	Scott Branden <sbranden@...adcom.com>
To:	Jon Mason <jonmason@...adcom.com>,
	Hauke Mehrtens <hauke@...ke-m.de>
CC:	Kapil Hali <kapilh@...adcom.com>, Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	"Ian Campbell" <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Russell King <linux@....linux.org.uk>,
	Ray Jui <rjui@...adcom.com>,
	"Florian Fainelli" <f.fainelli@...il.com>,
	Gregory Fong <gregory.0xf0@...il.com>,
	"Lee Jones" <lee@...nel.org>, Heiko Stuebner <heiko@...ech.de>,
	Kever Yang <kever.yang@...k-chips.com>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	Olof Johansson <olof@...om.net>,
	"Paul Walmsley" <paul@...an.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Chen-Yu Tsai <wens@...e.org>, <devicetree@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>,
	<bcm-kernel-feedback-list@...adcom.com>
Subject: Re: [RFC] ARM: BCM: Add SMP support for Broadcom 4708

Looks good.

On 15-10-15 11:14 AM, Jon Mason wrote:
> ARM: BCM: Add SMP support for Broadcom 4708
>
> Add SMP support for Broadcom's 4708 SoCs.
>
> Signed-off-by: Jon Mason <jonmason@...adcom.com>
Acked-by: Scott Branden <sbranden@...adcom.com>
> ---
>   arch/arm/boot/dts/bcm4708.dtsi | 2 ++
>   arch/arm/boot/dts/bcm94708.dts | 2 +-
>   arch/arm/mach-bcm/Kconfig      | 1 +
>   arch/arm/mach-bcm/Makefile     | 3 +++
>   4 files changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm/boot/dts/bcm4708.dtsi b/arch/arm/boot/dts/bcm4708.dtsi
> index 31141e8..22a41df 100644
> --- a/arch/arm/boot/dts/bcm4708.dtsi
> +++ b/arch/arm/boot/dts/bcm4708.dtsi
> @@ -15,6 +15,8 @@
>   	cpus {
>   		#address-cells = <1>;
>   		#size-cells = <0>;
> +		enable-method = "brcm,bcm-nsp-smp";
> +		secondary-boot-reg = <0xffff0400>;
>
>   		cpu@0 {
>   			device_type = "cpu";
> diff --git a/arch/arm/boot/dts/bcm94708.dts b/arch/arm/boot/dts/bcm94708.dts
> index f60bb1d..49682d6 100644
> --- a/arch/arm/boot/dts/bcm94708.dts
> +++ b/arch/arm/boot/dts/bcm94708.dts
> @@ -32,7 +32,7 @@
>
>   /dts-v1/;
>
> -#include "bcm5301x.dtsi"
> +#include "bcm4708.dtsi"
>
>   / {
>   	model = "NorthStar SVK (BCM94708)";
> diff --git a/arch/arm/mach-bcm/Kconfig b/arch/arm/mach-bcm/Kconfig
> index 2e9dbb5..4fc8fa3 100644
> --- a/arch/arm/mach-bcm/Kconfig
> +++ b/arch/arm/mach-bcm/Kconfig
> @@ -54,6 +54,7 @@ config ARCH_BCM_NSP
>   config ARCH_BCM_5301X
>   	bool "Broadcom BCM470X / BCM5301X ARM SoC" if ARCH_MULTI_V7
>   	select ARCH_BCM_IPROC
> +	select HAVE_SMP
>   	help
>   	  Support for Broadcom BCM470X and BCM5301X SoCs with ARM CPU cores.
>
> diff --git a/arch/arm/mach-bcm/Makefile b/arch/arm/mach-bcm/Makefile
> index 36a4ca30..3ca1cf1 100644
> --- a/arch/arm/mach-bcm/Makefile
> +++ b/arch/arm/mach-bcm/Makefile
> @@ -43,6 +43,9 @@ obj-$(CONFIG_ARCH_BCM2835)	+= board_bcm2835.o
>
>   # BCM5301X
>   obj-$(CONFIG_ARCH_BCM_5301X)	+= bcm_5301x.o
> +ifeq ($(CONFIG_ARCH_BCM_5301X),y)
> +obj-$(CONFIG_SMP)		+= headsmp.o platsmp.o
> +endif
>
>   # BCM63XXx
>   ifeq ($(CONFIG_ARCH_BCM_63XX),y)
>

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