From 6d427c6b1fa0ae97e7c484229d137c6a1f8a4118 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Fri, 25 Nov 2016 20:15:59 -0700 Subject: binman: Automatically include a U-Boot .dtsi file For boards that need U-Boot-specific additions to the device tree, it is a minor annoyance to have to add these each time the tree is synced with upstream. Add a means to include a file (e.g. u-boot.dtsi) automatically into the .dts file before it is compiled. The file uses is the first one that exists in this list: arch//dts/-u-boot.dtsi arch//dts/-u-boot.dtsi arch//dts/-u-boot.dtsi arch//dts/-u-boot.dtsi arch//dts/u-boot.dtsi Signed-off-by: Simon Glass Suggested-by: Tom Rini Reviewed-by: Bin Meng Tested-by: Bin Meng --- tools/binman/README | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) (limited to 'tools/binman') diff --git a/tools/binman/README b/tools/binman/README index 45e741e..cb47e73 100644 --- a/tools/binman/README +++ b/tools/binman/README @@ -422,6 +422,45 @@ stage the position and size of entries should not be adjusted. step. +Automatic .dtsi inclusion +------------------------- + +It is sometimes inconvenient to add a 'binman' node to the .dts file for each +board. This can be done by using #include to bring in a common file. Another +approach supported by the U-Boot build system is to automatically include +a common header. You can then put the binman node (and anything else that is +specific to U-Boot, such as u-boot,dm-pre-reloc properies) in that header +file. + +Binman will search for the following files in arch//dts: + + -u-boot.dtsi where is the base name of the .dts file + -u-boot.dtsi + -u-boot.dtsi + -u-boot.dtsi + u-boot.dtsi + +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 + # $(warning binman_dtsi_options: $(binman_dtsi_options)) + + +Code coverage +------------- + +Binman is a critical tool and is designed to be very testable. Entry +implementations target 100% test coverage. Run 'binman -T' to check this. + +To enable Python test coverage on Debian-type distributions (e.g. Ubuntu): + + $ sudo apt-get install python-pip python-pytest + $ sudo pip install coverage + + Advanced Features / Technical docs ---------------------------------- -- cgit v1.1