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From: Tom Rini <trini@konsulko.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v3 01/11] dm: serial: Update binding for PL01x serial UART
Date: Thu, 13 Aug 2015 14:13:46 -0400	[thread overview]
Message-ID: <20150813181346.GS25532@bill-the-cat> (raw)
In-Reply-To: <55CCBFB2.7050301@wwwdotorg.org>

On Thu, Aug 13, 2015 at 10:02:58AM -0600, Stephen Warren wrote:
> On 08/13/2015 09:59 AM, Simon Glass wrote:
> >Hi Linus,
> >
> >On 11 August 2015 at 07:00, Linus Walleij <linus.walleij@linaro.org> wrote:
> >>On Fri, Aug 7, 2015 at 3:42 PM, Simon Glass <sjg@chromium.org> wrote:
> >>
> >>>This binding differs from that of Linux. Update it and change existing
> >>>users.
> >>>
> >>>Signed-off-by: Simon Glass <sjg@chromium.org>
> >>(...)
> >>>  doc/device-tree-bindings/serial/pl01x.txt | 55 ++++++++++++++++++++++++++++---
> >>
> >>So why does U-Boot have its own copy of any bindings at all?
> >>
> >>This is forking the ontology of who gets to define bindings I fear.
> >>It's a bit like have two bibles both claiming to be the word of god.
> >>(OK maybe a hyperbolic statement, but you see what I mean.)
> >>
> >>Can't we just have the bindings in the Linux kernel tree please?
> >
> >Is there any plan to move them out of Linux and put them in a separate place?
> >
> >We should make an effort to sync the device tree files with Linux periodically.
> >
> >I quite like having the bindings in U-Boot since it makes people think
> >about what they are adding. Are you worried that the bindings in
> >U-Boot might evolve separately? Certainly there has been some of that.
> >
> >However I recently sent a series to add a few things for Raspberry Pi
> >("arm: rpi: Device tree modifications for U-Boot") and I don't yet see
> >a willingness to add what some see as 'U-Boot things' to the binding.
> >How do we address that?
> 
> DT isn't supposed to contain "U-Boot things", but "an OS-agnostic
> description of the hardware". So, I imagine the solution is not to
> attempt to do that:-)

This always makes me ask if the FreeBSD folks or VxWorks folks have
adopted the "Linux" bindings or if the DT files continue to be
"OS-agnostic" and "only functional with Linux".  It was a while ago last
I looked but it made my head hurt a little doing a quick translation for
an SoC that I was familiar with.

-- 
Tom
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  reply	other threads:[~2015-08-13 18:13 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-08-07 13:42 [U-Boot] [PATCH v3 00/11] arm: rpi: Enable USB and Ethernet driver model Raspberry Pi Simon Glass
2015-08-07 13:42 ` [U-Boot] [PATCH v3 01/11] dm: serial: Update binding for PL01x serial UART Simon Glass
2015-08-11  3:57   ` Stephen Warren
2015-08-11  4:11     ` Simon Glass
2015-08-11  4:24       ` Stephen Warren
2015-08-11 13:00   ` Linus Walleij
2015-08-13 15:59     ` Simon Glass
2015-08-13 16:02       ` Stephen Warren
2015-08-13 18:13         ` Tom Rini [this message]
2015-08-13 19:04           ` Ian Lepore
2015-08-13 19:37             ` Stephen Warren
2015-08-14  7:43               ` Geert Uytterhoeven
2015-08-14 10:22             ` Linus Walleij
2015-08-14 14:27             ` Rob Herring
2015-08-14 17:45               ` Ian Lepore
2015-08-14 18:42                 ` Stephen Warren
2015-08-17  7:46                 ` Linus Walleij
2015-08-14 19:32             ` Pantelis Antoniou
2015-08-13 22:24       ` Rob Herring
2015-08-07 13:42 ` [U-Boot] [PATCH v3 02/11] arm: rpi: Define CONFIG_TFTP_TSIZE to show tftp size info Simon Glass
2015-08-11  3:58   ` Stephen Warren
2016-05-23 15:39     ` Simon Glass
2015-08-07 13:42 ` [U-Boot] [PATCH v3 03/11] arm: rpi: Bring in kernel device tree files Simon Glass
2015-08-07 13:42 ` [U-Boot] [PATCH v3 04/11] arm: rpi: Device tree modifications for U-Boot Simon Glass
2015-08-11  4:00   ` Stephen Warren
2015-08-11  4:17     ` Simon Glass
2015-08-11  4:25       ` Stephen Warren
2015-08-12 13:28         ` Simon Glass
2015-08-07 13:42 ` [U-Boot] [PATCH v3 05/11] arm: rpi: Add device tree files for Raspberry Pi 2 Simon Glass
2015-08-07 13:42 ` [U-Boot] [PATCH v3 06/11] arm: rpi: Enable device tree control for Rasberry Pi Simon Glass
2015-08-11  3:47   ` Stephen Warren
2015-08-14 19:20     ` Simon Glass
2015-08-15  3:32       ` Stephen Warren
2015-08-15 13:59         ` Simon Glass
2015-08-07 13:42 ` [U-Boot] [PATCH v3 07/11] arm: rpi: Enable device tree control for Rasberry Pi 2 Simon Glass
2015-08-07 13:42 ` [U-Boot] [PATCH v3 08/11] arm: rpi: Drop the UART console platform data Simon Glass
2015-08-07 13:42 ` [U-Boot] [PATCH v3 09/11] arm: rpi: Drop the GPIO " Simon Glass
2015-08-07 13:42 ` [U-Boot] [PATCH v3 10/11] arm: rpi: Move to driver model for USB Simon Glass
2015-08-07 13:42 ` [U-Boot] [PATCH v3 11/11] arm: rpi: Use driver model for Ethernet Simon Glass

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