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Re: [PATCH RESEND 0/4] SMP support for Broadcom NSP

From Russell King - ARM Linux <linux@arm.linux.org.uk>
Newsgroups linux.kernel
Subject Re: [PATCH RESEND 0/4] SMP support for Broadcom NSP
Date 2015-11-05 10:40 +0100
Message-ID <qrpbr-4Mx-1@gated-at.bofh.it> (permalink)
References <qrlKy-2wU-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Thu, Nov 05, 2015 at 12:51:17AM -0500, Kapil Hali wrote:
> Hi,
> 
> This series adds SMP support for Broadcom's Northstar Plus SoC.
> 
> There are similar SMP enablement methods for many ARMv7 bsed SoCs.
> BCM NSP SoC, has a typical such mechanism - after power-on, the
> secondary core is held in a standby state, primary core provides a
> startup address for the secondary core and wakes it up. Booting of
> the secondary core is serialized using pen_release global variable.

Why do you need the pen_release stuff?  The above implies that you
have only one secondary core, and you can control when it comes out
of standby state.

Please, don't assume that the pen_release stuff is any kind of recommended
or standardised system.  It isn't.  It's a hack for ARMs evaluation
platforms.

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Thread

[PATCH RESEND 0/4] SMP support for Broadcom NSP Kapil Hali <kapilh@broadcom.com> - 2015-11-05 07:00 +0100
  [PATCH RESEND 4/4] ARM: BCM: Add SMP support for Broadcom 4708 Kapil Hali <kapilh@broadcom.com> - 2015-11-05 07:00 +0100
  [PATCH RESEND 2/4] ARM: dts: add SMP support for Broadcom NSP Kapil Hali <kapilh@broadcom.com> - 2015-11-05 07:00 +0100
  [PATCH RESEND 1/4] dt-bindings: add SMP enable-method for Broadcom NSP Kapil Hali <kapilh@broadcom.com> - 2015-11-05 07:00 +0100
    Re: [PATCH RESEND 1/4] dt-bindings: add SMP enable-method for  Broadcom NSP Rob Herring <robh@kernel.org> - 2015-11-05 21:50 +0100
      Re: [PATCH RESEND 1/4] dt-bindings: add SMP enable-method for  Broadcom NSP Scott Branden <sbranden@broadcom.com> - 2015-11-05 22:00 +0100
  Re: [PATCH RESEND 0/4] SMP support for Broadcom NSP Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-11-05 10:40 +0100
    Re: [PATCH RESEND 0/4] SMP support for Broadcom NSP Hauke Mehrtens <hauke@hauke-m.de> - 2015-11-05 21:30 +0100
      Re: [PATCH RESEND 0/4] SMP support for Broadcom NSP Kapil Hali <kapilh@broadcom.com> - 2015-11-06 13:30 +0100
    Re: [PATCH RESEND 0/4] SMP support for Broadcom NSP Kapil Hali <kapilh@broadcom.com> - 2015-11-06 13:10 +0100

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