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From: "Noralf Trønnes" <noralf-L59+Z2yzLopAfugRpC6u6w@public.gmane.org>
To: Martin Sperl <kernel-TqfNSX0MhmxHKSADF0wUEw@public.gmane.org>,
	"linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	linux-rpi-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
	Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	Stephen Warren <swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
Subject: Re: spi: bcm2835: driver for "auxiliar" spi1/spi2
Date: Thu, 18 Jun 2015 12:19:04 +0200	[thread overview]
Message-ID: <55829B18.4030609@tronnes.org> (raw)
In-Reply-To: <5582933E.1050500-TqfNSX0MhmxHKSADF0wUEw@public.gmane.org>


Den 18.06.2015 11:45, skrev Martin Sperl:
> Quick question: for the auxiliar spi1 and spi2 of the BCM2835 chipset
> should I create a separate driver - say spi-bcm2835aux.c - or incorporate
> it into the exising spi-bcm2835.c driver.
>
> Note that the register set for the auxiliar spi devices is totally 
> different
> so any code-overlap with the existing spi-bcm2835.c would be minimal.
>

There is also an aux mini uart that shares interrupt with spi1/2.
The AUXIRQ register determines the interrupt source. How should this
sharing be done? This uart is really only useful on the Compute Module
since it's pins overlap the pl011 uart pins on the other boards.
This is how the mini uart is used/setup downstream:
https://github.com/raspberrypi/linux/pull/1008

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  parent reply	other threads:[~2015-06-18 10:19 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-06-18  9:45 spi: bcm2835: driver for "auxiliar" spi1/spi2 Martin Sperl
     [not found] ` <5582933E.1050500-TqfNSX0MhmxHKSADF0wUEw@public.gmane.org>
2015-06-18 10:19   ` Noralf Trønnes [this message]
     [not found]     ` <55829B18.4030609-L59+Z2yzLopAfugRpC6u6w@public.gmane.org>
2015-06-18 10:58       ` Mark Brown
     [not found]         ` <20150618105848.GE14071-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2015-06-18 11:37           ` Martin Sperl
2015-06-25 17:42           ` Jakub Kiciński
2015-07-07 13:51             ` Mark Brown
2015-06-18 10:38   ` Mark Brown

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