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2012-07-09fdt: send all dtc output to stderrStephen Warren
Commit 896bbb5 "fdt: avoid bad MAKEALL status" added logic to capture the result code from dtc by echoing $? to stdout and capturing it using $(). However, dtc emits some diagnostics to stderr and some to stdout. The diagnostics send to stdout ended up getting captured via $() rather than being echo'd to the user. This caused those diagnostics to be passed to the exit command, which would then fail with the following cryptic error message: /bin/sh: line 1: exit: too many arguments Solve this by redirecting all dtc output to stderr so that $() does not capture it. This allows the user to see the actual error message from dtc. Cc: Wolfgang Denk <wd@denx.de> Cc: Simon Glass <sjg@chromium.org> Cc: albert.u.boot@aribaud.net Cc: Tom Warren <twarren@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
2012-04-21fdt: avoid bad MAKEALL statusWolfgang Denk
Current versions of dtc always print a message like DTC: dts->dtb on file "dt.dtb.tmp" which cannot even be suppressed with "-qqq". To avoid incorrect MAKEALL status, we manually filter out this message. This is a bit complicated, as we have to make sure to set a correct return code. Also, get rid of the temp file: dtc accepts "-" for stdin. Signed-off-by: Wolfgang Denk <wd@denx.de> Cc: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org>
2012-04-21fdt: fix out of tree builds with DT supportWolfgang Denk
Fix: FATAL ERROR: Couldn't open "../arch/arm/dts/tegra20.dtsi": No such file or directory Signed-off-by: Wolfgang Denk <wd@denx.de> Cc: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org>
2011-10-26fdt: Add support for embedded device tree (CONFIG_OF_EMBED)Simon Glass
This new option allows U-Boot to embed a binary device tree into its image to allow run-time control of peripherals. This device tree is for U-Boot's own use and is not necessarily the same one as is passed to the kernel. The device tree compiler output should be placed in the $(obj) rooted tree. Since $(OBJCOPY) insists on adding the path to the generated symbol names, to ensure consistency it should be invoked from the directory where the .dtb file is located and given the input file name without the path. This commit contains my entry for the ugliest Makefile / shell interaction competition. Signed-off-by: Simon Glass <sjg@chromium.org>