mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-16 16:23:14 +00:00
c409bd015c
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>
88 lines
2.9 KiB
Text
88 lines
2.9 KiB
Text
#
|
|
# 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.
|
|
|
|
config SPL_OF_CONTROL
|
|
bool "Enable run-time configuration via Device Tree in SPL"
|
|
depends on SPL && 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.
|
|
|
|
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. This is suitable for local debugging
|
|
and development only and is not recommended for production devices.
|
|
Boards in the mainline U-Boot tree should not use it.
|
|
|
|
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
|
|
|
|
config DEFAULT_DEVICE_TREE
|
|
string "Default Device Tree for DT control"
|
|
depends on OF_CONTROL
|
|
help
|
|
This option specifies the default Device Tree used for DT control.
|
|
It can be overridden from the command line:
|
|
$ make DEVICE_TREE=<device-tree-name>
|
|
|
|
config OF_LIST
|
|
string "List of device tree files to include for DT control"
|
|
depends on SPL_LOAD_FIT
|
|
default DEFAULT_DEVICE_TREE
|
|
help
|
|
This option specifies a list of device tree files to use for DT
|
|
control. These will be packaged into a FIT. At run-time, SPL will
|
|
select the correct DT to use by examining the hardware (e.g.
|
|
reading a board ID value). This is a list of device tree files
|
|
(without the directory or .dtb suffix) separated by <space>.
|
|
|
|
config OF_SPL_REMOVE_PROPS
|
|
string "List of device tree properties to drop for SPL"
|
|
depends on SPL_OF_CONTROL
|
|
default "interrupt-parent" if SPL_PINCTRL_FULL && SPL_CLK
|
|
default "clocks clock-names interrupt-parent" if SPL_PINCTRL_FULL
|
|
default "pinctrl-0 pinctrl-names interrupt-parent" if SPL_CLK
|
|
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.
|
|
|
|
endmenu
|