Commit graph

17 commits

Author SHA1 Message Date
Vikas Manocha
239ae4a912 dm: avoid dropping pin control DT properties in case of SPL_PINCTRL
This patch replaces SPL_PINCTRL_FULL with SPL_PINCNTRL. It is to avoid removal
of pin control properties in case of SPL_PINCTRL. No impact in case of
SPL_PINCTRL_FULL as it depends on SPL_PINCTRL.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-04-04 20:15:10 -06:00
mario.six@gdsys.cc
2a792753d6 dm: Add callback to modify the device tree
Certain boards come in different variations by way of utilizing daughter
boards, for example. These boards might contain additional chips, which
are added to the main board's busses, e.g. I2C.

The device tree support for such boards would either, quite naturally,
employ the overlay mechanism to add such chips to the tree, or would use
one large default device tree, and delete the devices that are actually
not present.

Regardless of approach, even on the U-Boot level, a modification of the
device tree is a prerequisite to have such modular families of boards
supported properly.

Therefore, we add an option to make the U-Boot device tree (the actual
copy later used by the driver model) writeable, and add a callback
method that allows boards to modify the device tree at an early stage,
at which, hopefully, also the application of device tree overlays will
be possible.

Signed-off-by: Mario Six <mario.six@gdsys.cc>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Stefan Roese <sr@denx.de>
2017-03-23 15:46:23 +01:00
Simon Glass
2789ddb9d5 dm: Add an option to enable the of-platdata feature
Add a Kconfig option to enable this feature.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-07-14 20:40:24 -06:00
Michal Simek
c409bd015c spl: Setup default value for OF_LIST
OF_LIST can't remain empty that's why setup it up to default DTB.

If it is empty u-boot.img is created without FDT partition:
For example:
  ./tools/mkimage -f auto -A arm -T firmware -C none -O u-boot -a
0x8000000 -e 0 -n "U-Boot 2016.05-rc3 ..." -E -b  -d u-boot-nodtb.bin u-boot.img
Can't set 'timestamp' property for '' node (FDT_ERR_NOSPACE)
FIT description: Firmware image with one or more FDT blobs
Created:         Wed May  4 15:02:52 2016
 Image 0 (firmware@1)
  Description:  U-Boot 2016.05-rc3-00080-gff2e12ae22a8-dirty for zynqmp
board
  Created:      Wed May  4 15:02:52 2016
  Type:         Firmware
  Compression:  uncompressed
  Data Size:    unavailable
  Architecture: ARM
  Load Address: 0x08000000
 Default Configuration: 'conf@1'
 Configuration 0 (conf@1)
  Description:  unavailable
  Kernel:       unavailable

And then image like this doesn't contain description and link to FDT and
can't boot.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-05-23 11:50:21 -04:00
Simon Glass
cdf172461c spl: Add a way to specify a list of device trees to include
When building a FIT, more than one device tree can be included. The board
can select (at run-time) the one that it wants.

Add a Kconfig option to allow the list of devices trees (supported by the
board) to be specified.

When using SPL_LOAD_FIT, build u-boot.img in FIT format instead of the
legacy image format. Include all the listed device tree files in this FIT.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-03-14 19:18:31 -04:00
Simon Glass
70d41093c5 fdt: Adjust DEFAULT_DEVICE_TREE to device on OF_CONTROL
This option has no meaning without OF_CONTROL, so add a dependency.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-03-14 19:18:25 -04:00
Masahiro Yamada
5f3f7b79db dts: keep clock-names and clocks in SPL DTB if SPL_CLK is enabled
These two properties are necessary for SPL to get clocks from DT.

Note:
For now, only clock look-up by index is supported (clk_get_by_index()
function), so "clock-names" is never parsed in U-Boot.  However, we
may want to support something like clk_get_by_name() in the future,
so let's keep "clock-names" as well as "clocks".

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-02-24 20:06:19 -08:00
Simon Glass
3d3f60cb7a dts: Add a comment about CONFIG_OF_EMBED being for local use
This comment from README.fdt-control did not end up in the Kconfig, which
is what most people will see. Add it with a few tweaks.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Michal Simek <michal.simek@xilinx.com>
2015-10-03 14:29:16 +01:00
Masahiro Yamada
6aa8179f81 dts: do not cut down pinctrl-0 and pinctrl-names for SPL full-pinctrl
These properties are necessary to use full-featured pinctrl drivers
in SPL.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-09-16 19:45:12 -06:00
Masahiro Yamada
897705ec39 dts: fix dependency of OF_SPL_REMOVE_PROPS
This should depend on SPL_OF_CONTROL (it is not equivalent to
SPL && OF_CONTROL).

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-08-31 07:57:29 -06:00
Masahiro Yamada
dffb86e468 of: flip CONFIG_SPL_DISABLE_OF_CONTROL into CONFIG_SPL_OF_CONTROL
As we discussed a couple of times, negative CONFIG options make our
life difficult; CONFIG_SYS_NO_FLASH, CONFIG_SYS_DCACHE_OFF, ...
and here is another one.

Now, there are three boards enabling OF_CONTROL on SPL:
 - socfpga_arria5_defconfig
 - socfpga_cyclone5_defconfig
 - socfpga_socrates_defconfig

This commit adds CONFIG_SPL_OF_CONTROL for them and deletes
CONFIG_SPL_DISABLE_OF_CONTROL from the other boards to invert
the logic.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2015-08-18 13:46:04 -04:00
Simon Glass
fa78e0a371 dm: Reduce SPL device tree size
The SPL device tree size must be minimised to save memory. Only include
properties that are needed by SPL - this is determined by the presence
of the "u-boot,dm-pre-reloc" property. Also remove a predefined list of
unused properties from the nodes that remain.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-07-21 17:39:21 -06:00
Simon Glass
2860f03b91 fdt: Add an option to disable device tree in SPL
Some boards cannot support device tree due to lack of memory. Add an option
to allow these boards to continue to work (and even use driver model).
This is a 'negative' option since most boards are expected to support device
tree in SPL.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-04-23 09:05:54 -06:00
Masahiro Yamada
d648964fc2 kconfig: remove unneeded dependency on !SPL_BUILD
Now CONFIG_SPL_BUILD is not defined in Kconfig, so
"!depends on SPL_BUILD" and "if !SPL_BUILD" are redundant.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2015-02-24 17:06:27 -05:00
Robert P. J. Day
5699ea6d0e Correct two non-functional misspellings "overrided".
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
2014-10-27 17:54:11 -04:00
Masahiro Yamada
f1ef2b6233 kconfig: move CONFIG_DEFAULT_DEVICE_TREE to kconfig
This option specifies the default Device Tree used for the run-time
configuration of U-Boot.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Stephen Warren <swarren@nvidia.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Cc: Michal Simek <michal.simek@xilinx.com>
2014-09-25 09:31:24 -04:00
Masahiro Yamada
783e6a72b8 kconfig: move CONFIG_OF_* to Kconfig
This commit moves:
  CONFIG_OF_CONTROL
  CONFIG_OF_SEPARATE
  CONFIG_OF_EMBED
  CONFIG_OF_HOSTFILE

Because these options are currently not supported for SPL,
the "Device Tree Control" menu does not appear in the SPL
configuration.

Note:
zynq-common.h should be adjusted so as not to change the
default value of CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
Cc: Stephen Warren <swarren@nvidia.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
2014-09-25 09:27:50 -04:00