From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
To: Segher Boessenkool <segher@kernel.crashing.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
linux-mtd@lists.infradead.org, Milton Miller <miltonm@bga.com>,
linuxppc-dev@ozlabs.org
Subject: Re: [PATCH] powerpc: Create "rom" (MTD) device prpmc2800
Date: Mon, 04 Jun 2007 17:16:03 +0400 [thread overview]
Message-ID: <46641093.7080404@ru.mvista.com> (raw)
In-Reply-To: <03427692d8865878b0eb2a91e7f6969e@kernel.crashing.org>
Hello.
Segher Boessenkool wrote:
>> Regarding physical address ranges for the flash mapping, I suppose the
>> best is to define a property for flash chips for it.
> There is, namely "reg". How to best describe flash chips
> interleaved on the bus is still an open problem. And things
> like combining two sequential in address space flash chips
> into a virtual one, or describing flash "partitions" doesn't
> belong in the device tree at all; it is a policy thing, not
> a hardware thing.
Gah, it's becoming worse and worse...
While I would agree with that argument, not having flash partition table
in the device tree makes things even more ugly -- as we *already* can't use
platform device to pass that info, we'll have to either force the user to
supply that via the kernel option, or add more kludgery to Linux/MTD. :-/
> Segher
WBR, Sergei
WARNING: multiple messages have this Message-ID (diff)
From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
To: Segher Boessenkool <segher@kernel.crashing.org>
Cc: linux-mtd@lists.infradead.org, Milton Miller <miltonm@bga.com>,
linuxppc-dev@ozlabs.org
Subject: Re: [PATCH] powerpc: Create "rom" (MTD) device prpmc2800
Date: Mon, 04 Jun 2007 17:16:03 +0400 [thread overview]
Message-ID: <46641093.7080404@ru.mvista.com> (raw)
In-Reply-To: <03427692d8865878b0eb2a91e7f6969e@kernel.crashing.org>
Hello.
Segher Boessenkool wrote:
>> Regarding physical address ranges for the flash mapping, I suppose the
>> best is to define a property for flash chips for it.
> There is, namely "reg". How to best describe flash chips
> interleaved on the bus is still an open problem. And things
> like combining two sequential in address space flash chips
> into a virtual one, or describing flash "partitions" doesn't
> belong in the device tree at all; it is a policy thing, not
> a hardware thing.
Gah, it's becoming worse and worse...
While I would agree with that argument, not having flash partition table
in the device tree makes things even more ugly -- as we *already* can't use
platform device to pass that info, we'll have to either force the user to
supply that via the kernel option, or add more kludgery to Linux/MTD. :-/
> Segher
WBR, Sergei
next prev parent reply other threads:[~2007-06-04 13:14 UTC|newest]
Thread overview: 106+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-02 4:30 [PATCH] powerpc: Create "rom" (MTD) device prpmc2800 Milton Miller
2007-06-02 7:39 ` Benjamin Herrenschmidt
2007-06-03 16:10 ` Sergei Shtylyov
2007-06-03 17:36 ` Segher Boessenkool
2007-06-03 18:03 ` Sergei Shtylyov
2007-06-03 18:03 ` Sergei Shtylyov
2007-06-03 18:25 ` Segher Boessenkool
2007-06-03 18:25 ` Segher Boessenkool
2007-06-03 18:36 ` Sergei Shtylyov
2007-06-03 18:36 ` Sergei Shtylyov
2007-06-03 18:46 ` Segher Boessenkool
2007-06-03 18:46 ` Segher Boessenkool
2007-06-03 19:16 ` Sergei Shtylyov
2007-06-03 19:16 ` Sergei Shtylyov
2007-06-03 21:04 ` Benjamin Herrenschmidt
2007-06-03 21:04 ` Benjamin Herrenschmidt
2007-06-04 12:34 ` Sergei Shtylyov
2007-06-04 12:34 ` Sergei Shtylyov
2007-06-04 14:37 ` Segher Boessenkool
2007-06-04 14:37 ` Segher Boessenkool
2007-06-04 14:49 ` Sergei Shtylyov
2007-06-04 14:49 ` Sergei Shtylyov
2007-06-07 14:53 ` David Woodhouse
2007-06-07 14:53 ` David Woodhouse
2007-06-07 15:49 ` Segher Boessenkool
2007-06-07 15:49 ` Segher Boessenkool
2007-06-07 14:47 ` David Woodhouse
2007-06-07 14:47 ` David Woodhouse
2007-06-07 15:32 ` Segher Boessenkool
2007-06-07 15:32 ` Segher Boessenkool
2007-06-02 8:53 ` Segher Boessenkool
2007-06-03 16:22 ` Sergei Shtylyov
2007-06-03 17:40 ` Segher Boessenkool
2007-06-03 18:31 ` Sergei Shtylyov
2007-06-03 18:44 ` Segher Boessenkool
2007-06-03 19:13 ` Sergei Shtylyov
2007-06-03 19:56 ` Segher Boessenkool
2007-06-03 20:26 ` Sergei Shtylyov
2007-06-04 8:07 ` Segher Boessenkool
2007-06-04 13:34 ` Sergei Shtylyov
2007-06-07 15:00 ` David Woodhouse
2007-06-07 15:00 ` David Woodhouse
2007-06-07 15:55 ` Segher Boessenkool
2007-06-07 15:55 ` Segher Boessenkool
2007-06-07 16:05 ` David Woodhouse
2007-06-07 16:05 ` David Woodhouse
2007-06-07 16:46 ` Segher Boessenkool
2007-06-07 16:46 ` Segher Boessenkool
2007-06-12 4:44 ` David Gibson
2007-06-12 10:53 ` Segher Boessenkool
2007-06-13 3:16 ` David Gibson
2007-06-13 5:05 ` Segher Boessenkool
2007-06-13 6:11 ` David Gibson
2007-06-13 9:10 ` Segher Boessenkool
2007-06-15 4:12 ` David Gibson
2007-06-15 11:22 ` Segher Boessenkool
2007-06-15 4:14 ` David Gibson
2007-06-15 8:42 ` Segher Boessenkool
2007-06-15 8:47 ` David Woodhouse
2007-06-15 8:59 ` Segher Boessenkool
2007-06-03 21:12 ` Benjamin Herrenschmidt
2007-06-03 21:12 ` Benjamin Herrenschmidt
2007-06-04 8:11 ` Segher Boessenkool
2007-06-04 8:11 ` Segher Boessenkool
2007-06-04 13:16 ` Sergei Shtylyov [this message]
2007-06-04 13:16 ` Sergei Shtylyov
2007-06-04 12:41 ` Sergei Shtylyov
2007-06-04 12:41 ` Sergei Shtylyov
2007-06-04 14:49 ` Segher Boessenkool
2007-06-04 14:49 ` Segher Boessenkool
2007-06-04 15:54 ` Sergei Shtylyov
2007-06-04 15:54 ` Sergei Shtylyov
2007-06-03 17:29 ` Sergei Shtylyov
2007-06-03 17:45 ` Segher Boessenkool
2007-06-03 18:18 ` Sergei Shtylyov
2007-06-03 18:43 ` Segher Boessenkool
2007-06-03 18:59 ` Sergei Shtylyov
2007-06-03 19:48 ` Segher Boessenkool
2007-06-03 20:10 ` Sergei Shtylyov
2007-06-04 8:02 ` Segher Boessenkool
2007-06-04 19:40 ` Mark A. Greer
-- strict thread matches above, loose matches on Subject: below --
2007-06-01 23:20 Mark A. Greer
2007-06-02 8:46 ` Segher Boessenkool
2007-06-04 20:56 ` Mark A. Greer
2007-06-05 20:35 ` Sergei Shtylyov
2007-06-05 21:11 ` Mark A. Greer
2007-06-06 12:41 ` Sergei Shtylyov
2007-06-06 12:41 ` Sergei Shtylyov
2007-06-07 15:08 ` David Woodhouse
2007-06-07 15:08 ` David Woodhouse
2007-06-06 2:39 ` David Gibson
2007-06-07 13:30 ` Segher Boessenkool
2007-06-12 4:42 ` David Gibson
2007-06-12 10:50 ` Segher Boessenkool
2007-06-13 6:12 ` David Gibson
2007-06-13 9:13 ` Segher Boessenkool
2007-06-13 9:19 ` David Gibson
2007-06-13 9:37 ` Segher Boessenkool
2007-06-14 4:29 ` David Gibson
2007-06-14 8:00 ` Segher Boessenkool
2007-06-14 12:39 ` Sergei Shtylyov
2007-06-14 13:20 ` Segher Boessenkool
2007-06-14 12:48 ` Sergei Shtylyov
2007-06-14 13:18 ` Segher Boessenkool
2007-06-14 12:50 ` Sergei Shtylyov
2007-06-14 13:43 ` Segher Boessenkool
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