Messages in this thread | | | From | Steve McIntyre <> | Subject | Re: [RFC PATCH 0/3] Add device tree build information | Date | Wed, 15 Jan 2020 15:56:02 +0000 |
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Hi Alexandre!
alexandre.torgue@st.com wrote: > >The goal of this series is to add device tree build information in dtb. >This information can be dtb build date, where devicetree files come from, >who built the dtb ... Actually, same kind of information that you can find >in the Linux banner which is printout during kernel boot. Having the same >kind of information for device tree is useful for debugging and maintenance. > >To achieve that a new option "-B" (using an argument) is added to dtc. >The argument is a file containing a string with build information >(e.g., From Linux 5.5.0-rc1 by alex the Mon Jan 13 18:25:38 CET 2020). >DTC use it to append dts file with a new string property "Build-info". > >of/fdt.c is modified to printout "Build-info" property during Kernel boot and >scripts/Makefile.lib is modified to use dtc -B option during kernel make (this >last part could be improved for sure). > >Regards >Alex > >Alexandre Torgue (3): > dtc: Add dtb build information option > of: fdt: print dtb build information > scripts: Use -B dtc option to generate dtb build information. > > drivers/of/fdt.c | 9 +++++++ > scripts/Makefile.lib | 11 +++++--- > scripts/dtc/dtc.c | 55 +++++++++++++++++++++++++++++++++----- > scripts/gen_dtb_build_info | 11 ++++++++ > 4 files changed, 76 insertions(+), 10 deletions(-) > create mode 100755 scripts/gen_dtb_build_info
Looks good to me in testing here:
[ 0.000000] OF: fdt: From Linux 5.5.0-rc6-00031-g95e20af9fb9c-dirty by stemci01 the Wed 15 Jan 14:33:25 GMT 2020.
Tested-By: Steve McIntyre <steve.mcintyre@linaro.org>
-- Steve McIntyre steve.mcintyre@linaro.org <http://www.linaro.org/> Linaro.org | Open source software for ARM SoCs
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