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2019-06-14devicetree.bbclass: Combine stderr into stdout to see actual dtc errorJaewon Lee
Previously the subprocess command to run dtc was not properly displaying the error on console. Combining stderr into stdout for the dtc subprocess so the actual error can be seen on console without having to open the do_compile log. For example, previously on a dtc error, just the following stack trace and dtc command was being shown on console: File: 'exec_python_func() autogenerated', lineno: 2, function: <module> 0001: *** 0002:devicetree_do_compile(d) 0003: File: function: devicetree_do_compile 0127: if not(os.path.isfile(dtspath)) or not(dts.endswith(".dts") or devicetree_source_is_overlay(dtspath)): 0128: continue # skip non-.dts files and non-overlay files 0129: except: 0130: continue # skip if can't determine if overlay *** 0131: devicetree_compile(dtspath, includes, d) ... Exception: subprocess.CalledProcessError: Command '['dtc', '-R', '8', '-b', '0', '-p', '0x1000', '-i', '${INCLUDES}, '-o', 'system-top.dtb', '-I', 'dts', '-O', 'dtb', 'system-top.dts.pp']' returned non-zero exit status 1 with this patch, the actual error from the dtc command will be appended like the following: Subprocess output: Error: Label or path not found FATAL ERROR: Syntax error parsing input tree Signed-off-by: Jaewon Lee <jaewon.lee@xilinx.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2019-03-09device-tree.bbclass: Add support to compile overlays separatelyJaewon Lee
Currently only dts files are considered when looping through files to compile. Modifying the loop to compile other files that are overlays. Also surrounding this check with a try block as the function to find overlays parses the file for a '/plugin/' tag, and there may be files in the DT_FILES_PATH directory that are not parseable. Signed-off-by: Jaewon Lee <jaewon.lee@xilinx.com> Signed-off-by: Alejandro Enedino Hernandez Samaniego <alejandr@xilinx.com> Signed-off-by: Manjukumar Matha <manjukumar.harthikote-matha@xilinx.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2019-02-25devicetree.bbclass: Add virtual provider for dtbManjukumar Matha
Add virtual provider for dtb. This class can be used to generate dtb from static devicetree, for reference see meta-xilinx layer meta-xilinx/meta-xilinx-bsp/recipes-bsp/device-tree/device-tree.bb By providing a virtual provider we can use it to differentiate between in-kernel dtb or an external one. This can be set in local.conf as PREFERRED_PROVIDER_virtual/dtb = "devicetree" Signed-off-by: Manjukumar Matha <manjukumar.harthikote-matha@xilinx.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2018-09-12devicetree.bbclass: don't pad DT overlaysLuca Ceresoli
By default the devicetree class adds padding to the generated .dtb files, which can be needed by the bootloader. However it also pads .dtbo files, which is not useful. Don't apply padding to the overlay devicetrees. To achieve this: * move "-p ${DT_PADDING_SIZE}" to a new variable, DTB_BFLAGS (B for "base") * add "-p 0" to DTC_OFLAGS to disable padding for overlays Cc: Nathan Rossi <nathan@nathanrossi.com> Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2018-08-08devicetree.bbclass: User/BSP device tree source compilation classNathan Rossi
This bbclass implements the device tree compilation for user provided device trees. In order to use this class, it should be inherited in a BSP recipe which provides the sources. The default setup enables inclusion of kernel device tree sources (though can be disabled by the recipe by overriding DT_INCLUDE or KERNEL_INCLUDE). This provides an additional mechanism for BSPs to provide device trees and device tree overlays for their target machines. Whilst still enabling access to the kernel device trees for base SoC includes and headers. This approach to providing device trees has benefits for certain use cases over patching the device trees into the kernel source. * device trees are separated from kernel source, allows for selection of kernel and or kernel versions without needing to explicitly patch the kernel (or appending to the kernel recipes). * providing device trees from separate sources, from the layer, generated by the recipe or other recipes. This class also implements some additional features that are not available in the kernel-devicetree flow. This includes population of device tree blobs into the sysroot which allows for other recipes to consume built dtbs (e.g. U-Boot with EXT_DTB compilation), device tree overlay compilation and customizing DTC compilation args (boot cpu/padding/etc.). Signed-off-by: Nathan Rossi <nathan@nathanrossi.com> Acked-by: Martin Hundebøll <mnhu@prevas.dk> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>