From: Timur Tabi <timur@freescale.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: Could the DTS experts look at this?
Date: Mon, 11 Feb 2008 11:57:10 -0600 [thread overview]
Message-ID: <47B08C76.3000009@freescale.com> (raw)
In-Reply-To: <200802100647.56590.arnd@arndb.de>
Arnd Bergmann wrote:
> Maybe we can introduce a more generic way of having conditional
> device nodes in the tree that get knocked out in the boot wrapper.
I've been thinking about doing just this for quite some time now. I've had a
few informal discussions without people about.
One idea is to allow attaching simple conditional expressions (like X is <, =,
or > than Y) to a node. It is the responsibility of the code that parses the
device tree to assign values to X and Y. For instance, they could be the names
of U-Boot environment variables. If the expression is false, then the node is
removed (or ignored) from the device tree. If it's true, then it's kept in.
--
Timur Tabi
Linux kernel developer at Freescale
next prev parent reply other threads:[~2008-02-11 17:57 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-08 23:30 Could the DTS experts look at this? Sean MacLennan
2008-02-10 5:47 ` Arnd Bergmann
2008-02-10 6:05 ` Sean MacLennan
2008-02-11 17:57 ` Timur Tabi [this message]
2008-02-11 23:54 ` David Gibson
2008-02-11 23:56 ` David Gibson
2008-02-12 0:21 ` Arnd Bergmann
2008-02-12 0:36 ` David Gibson
2008-02-12 18:51 ` Scott Wood
2008-02-12 23:17 ` David Gibson
2008-02-12 23:41 ` Timur Tabi
2008-02-12 23:50 ` David Gibson
2008-02-12 15:44 ` Timur Tabi
2008-02-12 18:58 ` Grant Likely
2008-02-12 19:08 ` Timur Tabi
2008-02-12 19:34 ` Grant Likely
2008-02-12 19:45 ` Timur Tabi
2008-02-12 20:43 ` Grant Likely
2008-02-12 23:35 ` David Gibson
2008-02-12 23:50 ` Timur Tabi
2008-02-13 0:10 ` Grant Likely
2008-02-12 23:26 ` David Gibson
2008-02-12 23:47 ` Timur Tabi
2008-02-13 0:08 ` David Gibson
2008-02-13 0:15 ` Grant Likely
2008-02-12 23:21 ` David Gibson
2008-02-11 0:14 ` David Gibson
2008-02-11 2:40 ` Sean MacLennan
2008-02-11 3:11 ` David Gibson
2008-02-11 3:49 ` Sean MacLennan
2008-02-11 23:59 ` David Gibson
2008-02-12 1:07 ` Sean MacLennan
2008-02-12 0:20 ` David Gibson
2008-02-12 0:41 ` Sean MacLennan
2008-02-12 0:48 ` David Gibson
2008-02-12 18:52 ` Scott Wood
2008-02-12 19:03 ` Grant Likely
2008-02-12 19:10 ` Scott Wood
2008-02-17 10:22 ` David Woodhouse
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