From: Dan Malek <dan@embeddedalley.com> To: Timur Tabi <timur@freescale.com> Cc: Segher Boessenkool <segher@kernel.crashing.org>, Torben.Mathiasen@hp.com, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, linux-ppc-embedded <linuxppc-embedded@ozlabs.org> Subject: Re: lanana: Add major/minor entries for PPC QE UART devices Date: Wed, 28 Feb 2007 12:27:06 -0500 [thread overview] Message-ID: <46F6BF70-2922-4E05-8DAB-6B0830B0AB47@embeddedalley.com> (raw) In-Reply-To: <45E5B604.904@freescale.com> On Feb 28, 2007, at 12:04 PM, Timur Tabi wrote: > ... However, ttyCPM0 is currently assigned to 46, and device 50 is > an Altix serial card. The only way to give the CPM 6 or 8 slots > without moving it is to overlap the Altix card. Then, this is currently broken in all cases and needs to be fixed since the CPM/CPM2 could have up to six UART ports. > Now I don't know anything about the Altix card, so I don't know if > it's possible to use that card on a system with a CPM or a QE. If > it isn't, then I don't know if overlapping minor numbers is still a > problem. I don't think that would be a problem, and I'd like the CPM/QE to share devices because it makes the software distributions common to all Freescale embedded processors. > If we move CPM/QE to 192, then I can change the CPM device driver > to reflect that, but I don't know what that means for older kernels. That would be bad. It has nothing to do with the kernel, but we have finally survived the distribution updates to ttyCPM, and I don't want to go through that again just because of QE. Thanks. -- Dan
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From: Dan Malek <dan@embeddedalley.com> To: Timur Tabi <timur@freescale.com> Cc: Torben.Mathiasen@hp.com, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, Segher Boessenkool <segher@kernel.crashing.org>, linux-ppc-embedded <linuxppc-embedded@ozlabs.org> Subject: Re: lanana: Add major/minor entries for PPC QE UART devices Date: Wed, 28 Feb 2007 12:27:06 -0500 [thread overview] Message-ID: <46F6BF70-2922-4E05-8DAB-6B0830B0AB47@embeddedalley.com> (raw) In-Reply-To: <45E5B604.904@freescale.com> On Feb 28, 2007, at 12:04 PM, Timur Tabi wrote: > ... However, ttyCPM0 is currently assigned to 46, and device 50 is > an Altix serial card. The only way to give the CPM 6 or 8 slots > without moving it is to overlap the Altix card. Then, this is currently broken in all cases and needs to be fixed since the CPM/CPM2 could have up to six UART ports. > Now I don't know anything about the Altix card, so I don't know if > it's possible to use that card on a system with a CPM or a QE. If > it isn't, then I don't know if overlapping minor numbers is still a > problem. I don't think that would be a problem, and I'd like the CPM/QE to share devices because it makes the software distributions common to all Freescale embedded processors. > If we move CPM/QE to 192, then I can change the CPM device driver > to reflect that, but I don't know what that means for older kernels. That would be bad. It has nothing to do with the kernel, but we have finally survived the distribution updates to ttyCPM, and I don't want to go through that again just because of QE. Thanks. -- Dan
next prev parent reply other threads:[~2007-02-28 17:33 UTC|newest] Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top 2007-02-27 17:25 lanana: Add major/minor entries for PPC QE UART devices Timur Tabi 2007-02-27 17:36 ` Randy Dunlap 2007-02-28 1:45 ` Segher Boessenkool 2007-02-28 14:34 ` Timur Tabi 2007-02-28 14:54 ` Segher Boessenkool 2007-02-28 14:54 ` Segher Boessenkool 2007-02-28 15:46 ` Dan Malek 2007-02-28 15:46 ` Dan Malek 2007-02-28 17:04 ` Timur Tabi 2007-02-28 17:04 ` Timur Tabi 2007-02-28 17:27 ` Dan Malek [this message] 2007-02-28 17:27 ` Dan Malek 2007-02-28 17:35 ` Timur Tabi 2007-02-28 17:46 ` Dan Malek 2007-02-28 17:51 ` Timur Tabi 2007-02-28 18:00 ` H. Peter Anvin 2007-02-28 18:00 ` H. Peter Anvin 2007-02-28 18:20 ` Dan Malek 2007-02-28 19:18 ` Kumar Gala 2007-02-28 19:18 ` Kumar Gala 2007-02-28 19:21 ` H. Peter Anvin 2007-02-28 19:21 ` H. Peter Anvin 2007-02-28 19:30 ` Timur Tabi 2007-02-28 19:30 ` Timur Tabi 2007-02-28 19:33 ` Kumar Gala 2007-02-28 19:33 ` Kumar Gala 2007-02-28 19:43 ` Timur Tabi 2007-02-28 19:43 ` Timur Tabi 2007-02-28 20:57 ` Dan Malek 2007-02-28 20:57 ` Dan Malek 2007-02-28 22:08 ` Segher Boessenkool 2007-02-28 22:08 ` Segher Boessenkool 2007-03-01 15:48 ` Dan Malek 2007-03-01 15:48 ` Dan Malek 2007-03-01 15:55 ` Timur Tabi 2007-03-01 15:55 ` Timur Tabi 2007-03-01 16:06 ` Dan Malek 2007-03-01 16:06 ` Dan Malek 2007-03-01 16:13 ` Timur Tabi 2007-03-01 16:13 ` Timur Tabi 2007-03-01 16:43 ` Segher Boessenkool 2007-03-01 16:43 ` Segher Boessenkool 2007-03-01 13:38 ` Mathiasen, Torben 2007-03-01 13:38 ` Mathiasen, Torben 2007-02-28 19:21 ` Timur Tabi 2007-02-28 19:21 ` Timur Tabi 2007-02-28 19:25 ` Segher Boessenkool 2007-02-28 19:25 ` Segher Boessenkool 2007-02-28 19:27 ` H. Peter Anvin 2007-02-28 19:27 ` H. Peter Anvin 2007-02-28 19:45 ` Segher Boessenkool 2007-02-28 19:45 ` Segher Boessenkool 2007-02-28 22:40 ` Jan Engelhardt 2007-02-28 22:40 ` Jan Engelhardt 2007-02-28 12:07 ` Mathiasen, Torben 2007-02-28 13:00 ` H. Peter Anvin 2007-02-28 13:14 ` Mathiasen, Torben 2007-02-28 14:32 ` Kumar Gala 2007-02-28 14:37 ` Timur Tabi 2007-02-28 14:51 ` Mathiasen, Torben 2007-02-28 14:54 ` Kumar Gala 2007-02-28 15:13 ` H. Peter Anvin 2007-02-28 16:29 ` Timur Tabi 2007-02-28 16:33 ` H. Peter Anvin 2007-02-28 16:20 ` Timur Tabi 2007-02-28 14:35 ` Timur Tabi
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