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From:	Matteo Croce <technoboy85@gmail.com>
To:	Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Subject: Re: [PATCH][MIPS][5/6]: AR7: serial hack
Date:	Sun, 16 Mar 2008 16:27:31 +0100
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Cc:	Alan Cox <alan@lxorguk.ukuu.org.uk>, linux-mips@linux-mips.org,
	Florian Fainelli <florian@openwrt.org>,
	Felix Fietkau <nbd@openwrt.org>,
	Nicolas Thill <nico@openwrt.org>, linux-serial@vger.kernel.org,
	Andrew Morton <akpm@linux-foundation.org>
References: <200803120221.25044.technoboy85@gmail.com> <200803130131.54570.technoboy85@gmail.com> <20080313090109.GB6012@alpha.franken.de>
In-Reply-To: <20080313090109.GB6012@alpha.franken.de>
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Il Thursday 13 March 2008 10:01:09 Thomas Bogendoerfer ha scritto:
> On Thu, Mar 13, 2008 at 01:31:54AM +0100, Matteo Croce wrote:
> > Il Wednesday 12 March 2008 12:16:29 Alan Cox ha scritto:
> > > On Wed, 12 Mar 2008 02:30:06 +0100
> > > Matteo Croce <technoboy85@gmail.com> wrote:
> > > 
> > > > Ugly but we need it
> > > 
> > > Too ugly - NAK
> > > 
> > > However please send an explanation of the problem and lets find a nicer
> > > way to do it or bury it in arch code.
> > > 
> > > 
> > 
> > This is my problem:
> > 
> > ffi_cmdset_000: DDisabling erae-ssuspend-progrm ddue to code bokeenness.
> > cmdlinparrt partition arssing not avaiabll
> > RedBoo ppartition parsngg not availabl
> > NET: Rgiistered protocl  family 1
> > NET: Regsteered protocol ammily 10
> > IPv6 overIPPv4 tunnelingdriiver
> > NET: Regsteered protocolfammily 17
> > FS:: Mounted roo (ssquashfs filessttem) readonly.
> > Freeing nuused kernel meorry: 120k freed
> > 
> > I'll try to find a nicer way to fix it
> 
> don't use AFE mode and treat it like a normal 16550 (PORT_16550A). You
> could also try to use UPIO_MEM32. That's how my console driver
> (different OS) works for AR7 without the hack to wait for LSR_TEMP and 
> LSR_THRE.
> 
> Thomas.
> 

What about the .fcr field? PORT_16550A uses UART_FCR_R_TRIG_10 while AR7 uses UART_FCR_R_TRIG_00