From: Fabian Vogt <fvogt@suse.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 0/9] Switch bcm283x platform to use OF_CONTROL
Date: Wed, 05 Oct 2016 18:48:20 +0200 [thread overview]
Message-ID: <5330491.3nxHoBeEHh@linux-lm3i.site> (raw)
In-Reply-To: <ac0b90d8-920b-594e-4838-6ab42918f5bd@wwwdotorg.org>
Hi,
Am Mittwoch, 5. Oktober 2016, 09:54:46 CEST schrieb Stephen Warren:
> On 09/26/2016 06:26 AM, Fabian Vogt wrote:
> > This patch series modifies the used drivers to work with OF_CONTROL
> > and switches the board code and configs to use it.
> > The added device trees are directly from the linux kernel tree
> > and can thus be used for booting the (upstream) kernel.
>
> Is there a user-visible or developer-visible benefit to this change? In
> general, converting to use DT to instantiate devices simply ends up
> using more code (and hence complexity and time) to get to the exact same
> state afterwards.
There are various reasons, like:
- The device tree describes the platform, so it can also be used by the
linux kernel for configuration (no separate dtb needed)
- Properties are not hardcoded in the u-boot code
- Slightly different hardware deviations do not require significant code
changes (like #ifdef or even new platdatas), just a new dts and Kconfig
adjustments
It's also mentioned in Simon Glass's talk about DM:
https://events.linuxfoundation.org/sites/events/files/slides/Order%20at%20last%20-%20U-Boot%20driver%20model%20slides%20(2).pdf
next prev parent reply other threads:[~2016-10-05 16:48 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-26 12:26 [U-Boot] [PATCH 0/9] Switch bcm283x platform to use OF_CONTROL Fabian Vogt
2016-09-26 12:26 ` [U-Boot] [PATCH 1/9] gpio: bcm2835: add device tree support Fabian Vogt
2016-09-27 0:32 ` Simon Glass
2016-11-29 17:33 ` [U-Boot] [U-Boot,1/9] " Tom Rini
2016-09-26 12:26 ` [U-Boot] [PATCH 2/9] serial: bcm283x_mu: " Fabian Vogt
2016-09-27 0:34 ` Simon Glass
2016-11-29 17:34 ` [U-Boot] [U-Boot, " Tom Rini
2016-09-26 12:26 ` [U-Boot] [PATCH 3/9] serial: pl01x: expose skip_init platdata option in DT Fabian Vogt
2016-09-27 0:34 ` Simon Glass
2016-11-29 17:34 ` [U-Boot] [U-Boot, " Tom Rini
2016-09-26 12:26 ` [U-Boot] [PATCH 4/9] fdt: add dt-bindings for bcm2835 Fabian Vogt
2016-09-27 0:34 ` Simon Glass
2016-11-29 17:34 ` [U-Boot] [U-Boot,4/9] " Tom Rini
2016-09-26 12:26 ` [U-Boot] [PATCH 5/9] fdt: import bcm283x device tree sources from the linux kernel tree Fabian Vogt
2016-09-27 0:34 ` Simon Glass
2016-11-29 17:35 ` [U-Boot] [U-Boot, " Tom Rini
2016-09-26 12:26 ` [U-Boot] [PATCH 6/9] fdt: adjust bcm283x device tree for u-boot Fabian Vogt
2016-09-27 0:35 ` Simon Glass
2016-11-29 17:35 ` [U-Boot] [U-Boot, " Tom Rini
2016-09-26 12:26 ` [U-Boot] [PATCH 7/9] serial: bcm283x_mu: support disabling after initialization Fabian Vogt
2016-09-27 0:35 ` Simon Glass
2016-11-29 17:36 ` [U-Boot] [U-Boot, " Tom Rini
2016-09-26 12:26 ` [U-Boot] [PATCH 8/9] board: rpi: move uart deactivation to board_init Fabian Vogt
2016-09-27 0:35 ` Simon Glass
2016-11-29 17:37 ` [U-Boot] [U-Boot, " Tom Rini
2016-09-26 12:26 ` [U-Boot] [PATCH 9/9] ARM: bcm283x: use OF_CONTROL for bcm283x Fabian Vogt
2016-09-27 0:35 ` Simon Glass
2016-11-29 17:37 ` [U-Boot] [U-Boot,9/9] " Tom Rini
2016-10-05 15:54 ` [U-Boot] [PATCH 0/9] Switch bcm283x platform to use OF_CONTROL Stephen Warren
2016-10-05 16:48 ` Fabian Vogt [this message]
2016-10-05 16:51 ` Simon Glass
2016-10-05 20:28 ` Alexander Graf
2016-10-06 19:32 ` Eric Anholt
2016-10-06 23:22 ` Stefan Bruens
2016-10-07 4:42 ` Eric Anholt
2016-10-07 20:42 ` Tom Rini
2016-10-07 21:59 ` Stefan Bruens
2016-11-16 13:43 ` Fabian Vogt
2016-11-25 19:45 ` Simon Glass
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