config DTC
bool
+config PYLIBFDT
+ bool
+
+config DTOC
+ bool
+ select PYLIBFDT
+
+config BINMAN
+ bool
+ select DTOC
+
menu "Device Tree Control"
depends on SUPPORT_OF_CONTROL
help
Normally U-Boot uses a flat device tree which saves space and
avoids the need to unpack the tree before use. However a flat
- tree does not support modifcation from within U-Boot since it
+ tree does not support modification from within U-Boot since it
can invalidate driver-model device tree offsets. This option
enables a live tree which is available after relocation,
and can be adjusted as needed.
This is only useful for Sandbox. Use the -d flag to U-Boot to
specify the file to read.
+config OF_PRIOR_STAGE
+ bool "Prior stage bootloader DTB for DT control"
+ help
+ If this option is enabled, the device tree used for DT
+ control will be read from a device tree binary, at a memory
+ location passed to U-Boot by the prior stage bootloader.
+
endchoice
config DEFAULT_DEVICE_TREE
device tree files (without the directory or .dtb suffix)
separated by <space>.
+choice
+ prompt "SPL OF LIST compression"
+ depends on MULTI_DTB_FIT
+ default MULTI_DTB_FIT_NO_COMPRESSION
+
+config MULTI_DTB_FIT_LZO
+ bool "LZO"
+ depends on SYS_MALLOC_F
+ select LZO
+ help
+ Compress the FIT image containing the DTBs available for the SPL
+ using LZO compression. (requires lzop on host).
+
+config MULTI_DTB_FIT_GZIP
+ bool "GZIP"
+ depends on SYS_MALLOC_F
+ select GZIP
+ help
+ Compress the FIT image containing the DTBs available for the SPL
+ using GZIP compression. (requires gzip on host)
+
+config MULTI_DTB_FIT_NO_COMPRESSION
+ bool "No compression"
+ help
+ Do not compress the FIT image containing the DTBs available for the SPL.
+ Use this options only if LZO is not available and the DTBs are very small.
+endchoice
+
+choice
+ prompt "Location of uncompressed DTBs"
+ depends on (MULTI_DTB_FIT_GZIP || MULTI_DTB_FIT_LZO)
+ default MULTI_DTB_FIT_DYN_ALLOC if SYS_MALLOC_F
+
+config MULTI_DTB_FIT_DYN_ALLOC
+ bool "Dynamically allocate the memory"
+ depends on SYS_MALLOC_F
+
+config MULTI_DTB_FIT_USER_DEFINED_AREA
+ bool "User-defined location"
+endchoice
+
+config MULTI_DTB_FIT_UNCOMPRESS_SZ
+ hex "Size of memory reserved to uncompress the DTBs"
+ depends on (MULTI_DTB_FIT_GZIP || MULTI_DTB_FIT_LZO)
+ default 0x8000
+ help
+ This is the size of this area where the DTBs are uncompressed.
+ If this area is dynamically allocated, make sure that
+ SYS_MALLOC_F_LEN is big enough to contain it.
+
+config MULTI_DTB_FIT_USER_DEF_ADDR
+ hex "Address of memory where dtbs are uncompressed"
+ depends on MULTI_DTB_FIT_USER_DEFINED_AREA
+ help
+ the FIT image containing the DTBs is uncompressed in an area defined
+ at compilation time. This is the address of this area. It must be
+ aligned on 2-byte boundary.
config DTB_RESELECT
bool "Support swapping dtbs at a later point in boot"
endchoice
choice
- prompt "Location of uncompressed DTBs "
+ prompt "Location of uncompressed DTBs"
depends on (SPL_MULTI_DTB_FIT_GZIP || SPL_MULTI_DTB_FIT_LZO)
default SPL_MULTI_DTB_FIT_DYN_ALLOC if SYS_MALLOC_F
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 && SPL_CLK
- default "clocks clock-names interrupt-parent" if SPL_PINCTRL
- default "pinctrl-0 pinctrl-names interrupt-parent" if SPL_CLK
- default "pinctrl-0 pinctrl-names clocks clock-names interrupt-parent"
+ default "interrupt-parent interrupts" if SPL_PINCTRL && SPL_CLK
+ default "clocks clock-names interrupt-parent interrupts" if SPL_PINCTRL
+ default "pinctrl-0 pinctrl-names interrupt-parent interrupts" if SPL_CLK
+ default "pinctrl-0 pinctrl-names clocks clock-names interrupt-parent interrupts"
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
config SPL_OF_PLATDATA
bool "Generate platform data for use in SPL"
depends on SPL_OF_CONTROL
+ select DTOC
help
For very constrained SPL environments the overhead of decoding
device tree nodes and converting their contents into platform data
This option works by generating C structure declarations for each
compatible string, then adding platform data and U_BOOT_DEVICE
- declarations for each node. See README.platdata for more
- information.
+ declarations for each node. See of-plat.txt for more information.
config TPL_OF_PLATDATA
bool "Generate platform data for use in TPL"
depends on TPL_OF_CONTROL
+ select DTOC
help
For very constrained SPL environments the overhead of decoding
device tree nodes and converting their contents into platform data
This option works by generating C structure declarations for each
compatible string, then adding platform data and U_BOOT_DEVICE
- declarations for each node. See README.platdata for more
- information.
+ declarations for each node. See of-plat.txt for more information.
endmenu
projects / oweals / u-boot.git / blobdiff