diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/binman/binman.rst | 34 |
1 files changed, 8 insertions, 26 deletions
diff --git a/tools/binman/binman.rst b/tools/binman/binman.rst index 10389a52c4b..3e063d1f86c 100644 --- a/tools/binman/binman.rst +++ b/tools/binman/binman.rst @@ -232,26 +232,6 @@ You can use other, more specific CONFIG options - see 'Automatic .dtsi inclusion' below. -Using binman with OF_BOARD --------------------------------------------- - -Normally binman is used with a board configured with OF_SEPARATE or OF_EMBED. -This is a typical scenario where a device tree source that contains the binman -node is provided in the arch/<arch>/dts directory for a specific board. - -However for a board configured with OF_BOARD, no device tree blob is provided -in the U-Boot build phase hence the binman node information is not available. -In order to support such use case, a new Kconfig option BINMAN_STANDALONE_FDT -is introduced, to tell the build system that a standalone device tree blob -containing binman node is explicitly required. - -Note there is a Kconfig option BINMAN_FDT which enables U-Boot run time to -access information about binman entries, stored in the device tree in a binman -node. Generally speaking, this option makes sense for OF_SEPARATE or OF_EMBED. -For the other OF_CONTROL methods, it's quite possible binman node is not -available as binman is invoked during the build phase, thus this option is not -turned on by default for these OF_CONTROL methods. - Access to binman entry offsets at run time (symbols) ---------------------------------------------------- @@ -810,12 +790,14 @@ Binman will search for the following files in arch/<arch>/dts:: U-Boot will only use the first one that it finds. If you need to include a more general file you can do that from the more specific file using #include. -If you are having trouble figuring out what is going on, you can uncomment -the 'warning' line in scripts/Makefile.lib to see what it has found:: - - # Uncomment for debugging - # This shows all the files that were considered and the one that we chose. - # u_boot_dtsi_options_debug = $(u_boot_dtsi_options_raw) +If you are having trouble figuring out what is going on, you can use +`DEVICE_TREE_DEBUG=1` with your build:: + + make DEVICE_TREE_DEBUG=1 + scripts/Makefile.lib:334: Automatic .dtsi inclusion: options: + arch/arm/dts/juno-r2-u-boot.dtsi arch/arm/dts/-u-boot.dtsi + arch/arm/dts/armv8-u-boot.dtsi arch/arm/dts/armltd-u-boot.dtsi + arch/arm/dts/u-boot.dtsi ... found: "arch/arm/dts/juno-r2-u-boot.dtsi" Updating an ELF file |