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u-boot/dts/Kconfig

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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>
2014-09-22 18:59:05 +08:00
#
# Device Tree Control
#
config SUPPORT_OF_CONTROL
bool
menu "Device Tree Control"
depends on SUPPORT_OF_CONTROL
config OF_CONTROL
bool "Run-time configuration via Device Tree"
help
This feature provides for run-time configuration of U-Boot
via a flattened device tree.
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>
2015-02-28 13:06:38 +08:00
config SPL_DISABLE_OF_CONTROL
bool "Disable run-time configuration via Device Tree in SPL"
depends on OF_CONTROL
help
Some boards use device tree in U-Boot but only have 4KB of SRAM
which is not enough to support device tree. Enable this option to
allow such boards to be supported by U-Boot SPL.
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>
2014-09-22 18:59:05 +08:00
choice
prompt "Provider of DTB for DT control"
depends on OF_CONTROL
config OF_SEPARATE
bool "Separate DTB for DT control"
depends on !SANDBOX
help
If this option is enabled, the device tree will be built and
placed as a separate u-boot.dtb file alongside the U-Boot image.
config OF_EMBED
bool "Embedded DTB for DT control"
help
If this option is enabled, the device tree will be picked up and
built into the U-Boot image.
config OF_HOSTFILE
bool "Host filed DTB for DT control"
depends on SANDBOX
help
If this option is enabled, DTB will be read from a file on startup.
This is only useful for Sandbox. Use the -d flag to U-Boot to
specify the file to read.
endchoice
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>
2014-09-22 18:59:06 +08:00
config DEFAULT_DEVICE_TREE
string "Default Device Tree for DT control"
help
This option specifies the default Device Tree used for DT control.
Correct two non-functional misspellings "overrided". Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
2014-10-22 04:44:32 +08:00
It can be overridden from the command line:
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>
2014-09-22 18:59:06 +08:00
$ make DEVICE_TREE=<device-tree-name>
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>
2015-06-24 05:38:29 +08:00
config OF_SPL_REMOVE_PROPS
string "List of device tree properties to drop for SPL"
depends on OF_CONTROL && SPL
default "pinctrl-0 pinctrl-names clocks clock-names interrupt-parent"
help
Since SPL normally runs in a reduced memory space, the device tree
is cut down to only what is needed to load and start U-Boot. Only
nodes marked with the property "u-boot,dm-pre-reloc" will be
included. In addition, some properties are not used by U-Boot and
can be discarded. This option defines the list of properties to
discard.
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>
2014-09-22 18:59:05 +08:00
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