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From: Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: Christophe Leroy <christophe.leroy-GgN8y9CXRhA@public.gmane.org>
Cc: Benjamin Herrenschmidt
	<benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>,
	Paul Mackerras <paulus-eUNUBHrolfbYtjvyW6yDsg@public.gmane.org>,
	Marcelo Tosatti <marcelo-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org>,
	Vitaly Bordug
	<vitb-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linuxppc-dev-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org,
	linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Joakim Tjernlund
	<joakim.tjernlund-SNLAxHN9vbcOP4wsBPIw7w@public.gmane.org>,
	scottwood-KZfg59tc24xl57MIdRCFDg@public.gmane.org
Subject: Re: [PATCH 2/2] spi: fsl-spi: Allow dynamic allocation of CPM1 parameter RAM
Date: Fri, 3 Oct 2014 15:44:20 +0100	[thread overview]
Message-ID: <20141003144420.GC24441@sirena.org.uk> (raw)
In-Reply-To: <20141003125609.5BEA11AB276-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>

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On Fri, Oct 03, 2014 at 02:56:09PM +0200, Christophe Leroy wrote:

> +config CPM1_RELOCSPI
> +	bool "Dynamic SPI relocation"
> +	default n
> +	help
> +	  On recent MPC8xx (at least MPC866 and MPC885) SPI can be relocated
> +	  without micropatch. This activates relocation to a dynamically
> +	  allocated area in the CPM Dual port RAM.
> +	  When combined with SPI relocation patch (for older MPC8xx) it avoids
> +	  the "loss" of additional Dual port RAM space just above the patch,
> +	  which might be needed for example when using the CPM QMC.

Something like this shouldn't be a compile time option.  Either it
should be unconditional or it should be triggered in some system
specific manner (from DT, from knowing about other users or similar).

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  parent reply	other threads:[~2014-10-03 14:44 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-03 12:56 [PATCH 2/2] spi: fsl-spi: Allow dynamic allocation of CPM1 parameter RAM Christophe Leroy
     [not found] ` <20141003125609.5BEA11AB276-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2014-10-03 14:44   ` Mark Brown [this message]
     [not found]     ` <20141003144420.GC24441-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2014-10-03 20:15       ` christophe leroy
2014-10-03 20:24         ` Scott Wood
     [not found]           ` <1412367858.13320.432.camel-88ow+0ZRuxG2UiBs7uKeOtHuzzzSOjJt@public.gmane.org>
2014-10-04 10:15             ` christophe leroy
2014-10-07  0:19               ` Scott Wood
     [not found]                 ` <1412641184.13320.506.camel-88ow+0ZRuxG2UiBs7uKeOtHuzzzSOjJt@public.gmane.org>
2014-10-08 16:46                   ` leroy christophe
     [not found]                     ` <54356A53.3010700-GgN8y9CXRhA@public.gmane.org>
2014-10-08 18:45                       ` Scott Wood

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