dm: Avoid accessing uclasses before they are ready

Don't allow access to uclasses before they have been initialised.

Signed-off-by: Simon Glass <sjg@chromium.org>

dm: Allow a device to be found by its FDT offset

Each device that was bound from a device tree has an node that caused it to
be bound. Add functions that find and return a device based o

dm: Allow a device to be found by its FDT offset

Each device that was bound from a device tree has an node that caused it to
be bound. Add functions that find and return a device based on a device tree
offset.

Signed-off-by: Simon Glass <sjg@chromium.org>

show more ...

dm: Introduce device sequence numbering

In U-Boot it is pretty common to number devices from 0 and access them
on the command line using this numbering. While it may come to pass that

dm: Introduce device sequence numbering

In U-Boot it is pretty common to number devices from 0 and access them
on the command line using this numbering. While it may come to pass that
we will move away from this numbering, the possibility seems remote at
present.

Given that devices within a uclass will have an implied numbering, it
makes sense to build this into driver model as a core feature. The cost
is fairly small in terms of code and data space.

With each uclass having numbered devices we can ask for SPI port 0 or
serial port 1 and receive a single device.

Devices typically request a sequence number using aliases in the device
tree. These are resolved when the device is probed, to deal with conflicts.
Sequence numbers need not be sequential and holes are permitted.

At present there is no support for sequence numbers using static platform
data. It could easily be added to 'struct driver_info' if needed, but it
seems better to add features as we find a use for them, and the use of -1
to mean 'no sequence' makes the default value somewhat painful.

Signed-off-by: Simon Glass <sjg@chromium.org>

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dm: Move uclass error checking/probing into a function

Several functions will use this same pattern, so bring it into a function.

Signed-off-by: Simon Glass <sjg@chromium.org>

Merge branch 'master' of git://git.denx.de/u-boot

Signed-off-by: Stefano Babic <sbabic@denx.de>

Conflicts:
boards.cfg

Merge branch 'master' of git://www.denx.de/git/u-boot-imx

Merge branch 'master' of git://www.denx.de/git/u-boot-imx

Merge remote-tracking branch 'u-boot-samsung/master'

Conflicts:
boards.cfg

Conflict was trivial between goni maintainer change and
lager_nor removal.

Merge branch 'u-boot-tegra/master' into 'u-boot-arm/master'

Merge branch 'u-boot-ti/master' into 'u-boot-arm/master'

Merge branch 'u-boot-imx/master' into 'u-boot-arm/master'

Merge branch 'u-boot-sh/rmobile' into 'u-boot-arm/master'

Merge branch 'u-boot-microblaze/zynq' into 'u-boot-arm/master'

Merge branch 'u-boot/master' into 'u-boot-arm/master'

Merge branch 'master' of git://git.denx.de/u-boot-dm

dm: Cast away the const-ness of the global_data pointer

In a very few cases we need to adjust the driver model root device, such as
when setting it up at initialisation. Add a macro to m

dm: Cast away the const-ness of the global_data pointer

In a very few cases we need to adjust the driver model root device, such as
when setting it up at initialisation. Add a macro to make this easier.

Signed-off-by: Simon Glass <sjg@chromium.org>

show more ...

Merge branch 'master' of git://git.denx.de/u-boot-arm

Merge branch 'master' of git://git.denx.de/u-boot-avr32

Merge branch 'master' of git://git.denx.de/u-boot-arm

Merge branch 'master' of git://git.denx.de/u-boot-arc

dm: rename device struct to udevice

using UBI and DM together leads in compiler error, as
both define a "struct device", so rename "struct device"
in include/dm/device.h to "struct u

dm: rename device struct to udevice

using UBI and DM together leads in compiler error, as
both define a "struct device", so rename "struct device"
in include/dm/device.h to "struct udevice", as we use
linux code (MTD/UBI/UBIFS some USB code,...) and cannot
change the linux "struct device"

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Marek Vasut <marex@denx.de>

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Merge branch 'master' of git://git.denx.de/u-boot-arm into master

Conflicts:
arch/arm/cpu/arm926ejs/mxs/mxsimage.mx23.cfg
arch/arm/cpu/arm926ejs/mxs/mxsimage.mx28.cfg

Merge branch 'master' of git://git.denx.de/u-boot-arm into master

Conflicts:
arch/arm/cpu/arm926ejs/mxs/mxsimage.mx23.cfg
arch/arm/cpu/arm926ejs/mxs/mxsimage.mx28.cfg

Signed-off-by: Stefano Babic <sbabic@denx.de>

show more ...

Merge branch 'u-boot-imx/master' into 'u-boot-arm/master'

Merge branch 'master' of git://git.denx.de/u-boot-arm

Merge branch 'master' of git://git.denx.de/u-boot-nand-flash