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

From: Russell King - ARM Linux
Date: Thu Nov 05 2015 - 04:35:33 EST

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

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