u-boot/lib/libfdt
Thierry Reding ea1df3e07c libfdt: Add phandle generation helper
The new fdt_generate_phandle() function can be used to generate a new,
unused phandle given a specific device tree blob. The implementation is
somewhat naive in that it simply walks the entire device tree to find
the highest phandle value and then returns a phandle value one higher
than that. A more clever implementation might try to find holes in the
current set of phandle values and fill them. But this implementation is
relatively simple and works reliably.

Also add a test that validates that phandles generated by this new API
are indeed unique.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2019-04-11 20:10:50 -06:00
..
fdt.c
fdt_addresses.c
fdt_empty_tree.c
fdt_overlay.c
fdt_region.c
fdt_ro.c libfdt: Add phandle generation helper 2019-04-11 20:10:50 -06:00
fdt_rw.c
fdt_strerror.c
fdt_sw.c
fdt_wip.c
libfdt_internal.h
Makefile
README
test_libfdt.py

The libfdt functionality was written by David Gibson.  The original
source came from the Git repository:

URL:		git://ozlabs.org/home/dgibson/git/libfdt.git

author		David Gibson <dgibson@sneetch.(none)>
		Fri, 23 Mar 2007 04:16:54 +0000 (15:16 +1100)
committer	David Gibson <dgibson@sneetch.(none)>
		Fri, 23 Mar 2007 04:16:54 +0000 (15:16 +1100)
commit		857f54e79f74429af20c2b5ecc00ee98af6a3b8b
tree		2f648f0f88225a51ded452968d28b4402df8ade0
parent		07a12a08005f3b5cd9337900a6551e450c07b515

To adapt for U-Boot usage, only the applicable files were copied and
imported into the U-Boot Git repository.

Omitted:

  * GPL - U-Boot comes with a copy of the GPL license
  * test subdirectory - not directly useful for U-Boot

After importing, other customizations were performed.  See the
"git log" for details.

Jerry Van Baren