From: Segher Boessenkool <segher@kernel.crashing.org>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: linuxppc-dev@ozlabs.org, David Gibson <david@gibson.dropbear.id.au>
Subject: Re: [PATCH 15/16] Add device tree for Ebony
Date: Thu, 15 Feb 2007 02:00:52 +0100 [thread overview]
Message-ID: <692d02b69479653f689a50a1257f43e9@kernel.crashing.org> (raw)
In-Reply-To: <1171500782.20192.204.camel@localhost.localdomain>
>>> Note that the "open-pic" node does not have a "#address-cells"
>>> property, so that the number of cells for the parent unit interrupt
>>> specifiers is 2 (which is the value of its "#interrupt-cells"
>>> property).
> Yes, "missing" is equivalent to 0,
...and the reason for that is that nodes without physical
children should not _have_ a "#address-cells" property.
> but the common practice has always
> been to specify it explicitely. Check existing Apple and IBM
> device-trees for example.
You do realise how many other borderline (or outright
wrong) things are done in those trees, right?
It doesn't really hurt to have a "#a = 0" prop, but it's
better to just not have a #a prop if you shouldn't have one.
Segher
next prev parent reply other threads:[~2007-02-15 1:00 UTC|newest]
Thread overview: 111+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-13 6:09 [0/16] Preliminary Ebony (440GP) support for arch/powerpc David Gibson
2007-02-13 6:10 ` [PATCH 5/16] powerpc: Add zImage platform hook for kernel address David Gibson
2007-02-13 6:10 ` [PATCH 8/16] Define FIXED_PORT flag for serial_core David Gibson
2007-02-13 6:10 ` [PATCH 6/16] Port 44x MMU definitions to ARCH=powerpc David Gibson
2007-02-13 6:24 ` Benjamin Herrenschmidt
2007-02-13 17:13 ` Roland Dreier
2007-02-13 17:45 ` Josh Boyer
2007-02-13 21:36 ` Benjamin Herrenschmidt
2007-02-13 6:10 ` [PATCH 2/16] More DCR native fixups David Gibson
2007-02-13 6:22 ` Benjamin Herrenschmidt
2007-02-13 6:10 ` [PATCH 1/16] Remove ibm4{xx,4x}.h from arch/powerpc David Gibson
2007-02-13 14:19 ` Josh Boyer
2007-02-13 6:10 ` [PATCH 4/16] powerpc: Allow duplicate lmb_reserve() calls David Gibson
2007-02-13 7:05 ` Michael Neuling
2007-02-13 8:48 ` Michael Ellerman
2007-02-13 20:44 ` Benjamin Herrenschmidt
2007-02-13 6:10 ` [PATCH 3/16] [powerpc] Use udbg_early_init() on ppc32 David Gibson
2007-02-13 6:22 ` Benjamin Herrenschmidt
2007-02-13 6:10 ` [PATCH 7/16] Early serial debug support for PPC44x David Gibson
2007-02-13 15:04 ` Josh Boyer
2007-02-14 0:16 ` David Gibson
2007-02-14 1:02 ` Josh Boyer
2007-02-14 1:00 ` David Gibson
2007-02-14 2:00 ` Alan Modra
2007-02-14 2:02 ` David Gibson
2007-02-14 2:38 ` Alan Modra
2007-02-14 15:41 ` Josh Boyer
2007-02-14 23:05 ` David Gibson
2007-02-13 6:10 ` [PATCH 11/16] zImage wrapper for Ebony David Gibson
2007-02-13 17:05 ` Geoff Levand
2007-02-14 0:17 ` David Gibson
2007-02-13 6:10 ` [PATCH 12/16] Automatically lmb_reserve() initrd David Gibson
2007-02-13 7:14 ` Michael Neuling
2007-02-13 6:10 ` [PATCH 9/16] Use resource_size_t for serial port IO addresses David Gibson
2007-02-13 6:10 ` [PATCH 14/16] Add arch/powerpc driver for UIC, PPC4xx interrupt controller David Gibson
2007-02-13 6:10 ` [PATCH 10/16] Add support for BSS stack for zImage wrapper David Gibson
2007-02-13 6:10 ` [PATCH 13/16] Add initrd properties to device tree from zImage David Gibson
2007-02-13 6:10 ` [PATCH 16/16] Support for Ebony in arch/powerpc David Gibson
2007-02-13 17:18 ` Roland Dreier
2007-02-14 0:20 ` David Gibson
2007-02-13 6:10 ` [PATCH 15/16] Add device tree for Ebony David Gibson
2007-02-13 20:08 ` Segher Boessenkool
2007-02-14 0:22 ` David Gibson
2007-02-14 1:51 ` Benjamin Herrenschmidt
2007-02-14 4:46 ` David Gibson
2007-02-14 17:54 ` Segher Boessenkool
2007-02-14 23:18 ` David Gibson
2007-02-15 0:25 ` Segher Boessenkool
2007-02-14 17:51 ` Segher Boessenkool
2007-02-14 17:48 ` Segher Boessenkool
2007-02-14 21:30 ` Benjamin Herrenschmidt
2007-02-15 0:03 ` Segher Boessenkool
2007-02-15 0:53 ` Benjamin Herrenschmidt
2007-02-15 1:00 ` Segher Boessenkool [this message]
2007-02-15 2:22 ` Benjamin Herrenschmidt
2007-02-15 2:51 ` Segher Boessenkool
2007-02-14 23:17 ` David Gibson
2007-02-15 0:27 ` Segher Boessenkool
2007-02-15 14:02 ` Jon Loeliger
2007-02-15 14:56 ` Segher Boessenkool
2007-02-15 17:02 ` Yoder Stuart-B08248
2007-02-15 17:10 ` Scott Wood
2007-02-16 9:20 ` Segher Boessenkool
2007-02-14 16:14 ` Yoder Stuart-B08248
2007-02-14 16:32 ` Josh Boyer
2007-02-14 17:58 ` Segher Boessenkool
2007-02-14 20:08 ` Yoder Stuart-B08248
2007-02-14 21:12 ` Segher Boessenkool
2007-02-14 21:35 ` Yoder Stuart-B08248
2007-02-14 21:42 ` Benjamin Herrenschmidt
2007-02-14 21:59 ` Scott Wood
2007-02-15 0:20 ` Segher Boessenkool
2007-02-14 22:50 ` Yoder Stuart-B08248
2007-02-14 22:57 ` Benjamin Herrenschmidt
2007-02-15 0:17 ` Segher Boessenkool
2007-02-15 2:12 ` Paul Mackerras
2007-02-15 2:43 ` Segher Boessenkool
2007-02-15 3:15 ` Paul Mackerras
2007-02-15 14:40 ` Segher Boessenkool
2007-02-16 1:17 ` Paul Mackerras
2007-02-16 9:41 ` Segher Boessenkool
2007-02-15 0:10 ` Segher Boessenkool
2007-02-14 23:32 ` David Gibson
2007-02-14 23:27 ` David Gibson
2007-02-14 23:22 ` David Gibson
2007-02-14 23:51 ` Benjamin Herrenschmidt
2007-02-15 0:36 ` Segher Boessenkool
2007-02-15 0:31 ` Segher Boessenkool
2007-02-15 1:53 ` David Gibson
2007-02-15 3:09 ` Segher Boessenkool
2007-02-15 3:33 ` David Gibson
2007-02-15 14:47 ` Segher Boessenkool
2007-02-15 10:52 ` Benjamin Herrenschmidt
2007-02-15 14:52 ` Segher Boessenkool
2007-02-15 20:43 ` Benjamin Herrenschmidt
2007-02-16 9:23 ` Segher Boessenkool
2007-02-15 16:37 ` Yoder Stuart-B08248
2007-02-15 21:41 ` Benjamin Herrenschmidt
2007-02-16 9:25 ` Segher Boessenkool
2007-02-16 15:32 ` Hartmut Penner
2007-02-16 16:47 ` Yoder Stuart-B08248
2007-02-19 12:02 ` Hartmut Penner
2007-02-14 21:29 ` Benjamin Herrenschmidt
2007-02-13 14:37 ` [0/16] Preliminary Ebony (440GP) support for arch/powerpc Josh Boyer
2007-02-13 20:21 ` Josh Boyer
2007-02-13 15:46 ` Josh Boyer
2007-02-14 16:06 ` Josh Boyer
2007-02-14 23:12 ` David Gibson
2007-02-16 2:19 ` Josh Boyer
2007-02-16 2:53 ` David Gibson
2007-02-16 4:33 ` Josh Boyer
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