u-boot.git/lib/libfdt, branch v2016.03

fdt: Correct handling of alias regions

2015-11-04T13:49:51+00:00

At present the last four bytes of the alias region are dropped in
the case where the last alias is included. This results in a corrupted
device tree. Fix this.

Signed-off-by: Simon Glass 
Signed-off-by: Michal Simek

fdt: Add fdt_first/next_region() functions

2015-07-21T23:39:20+00:00

These have been sent upstream but not accepted to libfdt. For now, bring
these into U-Boot to enable fdtgrep to operate. We will use fdtgrep to
cut device tree files down for SPL.

Signed-off-by: Simon Glass

fdt: Add a function to remove unused strings from a device tree

2015-07-21T23:39:20+00:00

Property names are stored in a string table. When a node property is
removed, the string table is not updated since other nodes may have a
property with the same name.

Thus it is possible for the string table to build up a number of unused
strings. Add a function to remove these. This works by building a new device
tree from the old one, adding strings one by one as needed.

Signed-off-by: Simon Glass

libfdt: fix error code of fdt_count_strings()

2015-07-20T13:21:47+00:00

Currently, this function returns a positive value on error,
so we never know whether this function has succeeded or failed.

For example, if the given property is not found, fdt_getprop()
returns -FDT_ERR_NOTFOUND, and then this function inverts it,
i.e., returns FDT_ERR_NOTFOUND (=1).

Signed-off-by: Masahiro Yamada 
Fixes: bc4147ab2d69 ("fdt: Add a function to count strings")
Acked-by: Simon Glass

libfdt: fix error code of fdt_get_string_index()

2015-07-20T13:21:47+00:00

As mentioned in the comment block in include/libfdt.h,
fdt_get_string_index() is supposed to return a negative value
on error.

Signed-off-by: Masahiro Yamada 
Fixes: 5094eb408a5d ("fdt: Add functions to retrieve strings")
Acked-by: Simon Glass

fdt: Fix handling of paths with options in them

2015-04-24T04:54:32+00:00

After syncing the sunxi dts files with the upstream kernel dm/fdt sunxi
builds would no longer boot.

The problem is that stdout-path is now set like this in the upstream dts
files: stdout-path = "serial0:115200n8". The use of options in of-paths,
either after an alias name, or after a full path, e.g. stdout-path =
"/soc@01c00000/serial@01c28000:115200", is standard of usage, but something
which the u-boot dts code so far did not handle.

This commit fixes this, adding support for both path formats.

Signed-off-by: Hans de Goede 
Acked-by: Simon Glass

libfdt: move CONFIG_OF_LIBFDT and CONFIG_FIT to lib/Makefile

2014-12-08T14:35:47+00:00

Signed-off-by: Masahiro Yamada

fdt: Add functions to retrieve strings

2014-10-22T22:56:41+00:00

Given a device tree node, a property name and an index, the new function
fdt_get_string_index() will return in an output argument a pointer to
the index'th string in the property's value.

The fdt_get_string() is a shortcut for the above with the index being 0.

Signed-off-by: Thierry Reding 
Acked-by: Simon Glass

fdt: Add a function to get the index of a string

2014-10-22T22:56:40+00:00

Given a device tree node and a property name, the new fdt_find_string()
function will look up a given string in the string list contained in the
property's value and return its index.

Signed-off-by: Thierry Reding 
Acked-by: Simon Glass

fdt: Add a function to count strings

2014-10-22T22:56:40+00:00

Given a device tree node and a property name, the fdt_count_strings()
function counts the number of strings found in the property value.

Signed-off-by: Thierry Reding 
Acked-by: Simon Glass