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* libfdt: fix fdt_stringlist_search()Masahiro Yamada2016-10-24-1/+1
| | | | | | | | | If fdt_getprop() fails, negative error code should be returned. [ DTC commit: daa75e8fa5942caa8e97931aed3a1ee0b7edd74b ] Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
* libfdt: fix fdt_stringlist_count()Masahiro Yamada2016-10-24-1/+1
| | | | | | | | | If fdt_getprop() fails, negative error code should be returned. [ DTC commit: e28eff5b787adb3f461d1653598818b2f1f25a73 ] Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
* libfdt: Drop inlining of fdt_path_offset()Simon Glass2016-10-13-0/+5
| | | | | | | The fdt_path_offset() function is not inlined in upstream libfdt. Adjust U-Boot's version to match. Signed-off-by: Simon Glass <sjg@chromium.org>
* libfdt: Bring in upstream stringlist functionsSimon Glass2016-10-13-40/+64
| | | | | | | | | | | | | | These have now landed upstream. The naming is different and in one case the function signature has changed. Update the code to match. This applies the following upstream commits by Thierry Reding <treding@nvidia.com> : 604e61e fdt: Add functions to retrieve strings 8702bd1 fdt: Add a function to get the index of a string 2218387 fdt: Add a function to count strings Signed-off-by: Simon Glass <sjg@chromium.org>
* libfdt: Sync up with upstreamSimon Glass2016-10-13-6/+4
| | | | | | | | | | | | | | | | This includes small changes to the following functions, from upstream commit 6d1832c: - fdt_get_max_phandle() (upstream commit 84e0e134) - fdt_node_check_compatible (upstream commit 53bf130b) - fdt_setprop_inplace_namelen_partial() to remove useless brackets and use idx instead of index - _fdt_resize_property() to use idx instead of index - _fdt_splice() (upstream commit d4c7c25c) It also includes various typo fixes in libfdt.h Signed-off-by: Simon Glass <sjg@chromium.org>
* libfdt: Add fdt_path_offset_namelenMaxime Ripard2016-08-20-8/+10
| | | | | | | | Add a namelen variant of fdt_path_offset to retrieve the node offset using only a fixed number of characters. Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
* libfdt: Fix separator spellingMaxime Ripard2016-08-20-4/+4
| | | | | | The function fdt_path_next_seperator had an obvious mispell. Fix it. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
* libfdt: Add max phandle retrieval functionMaxime Ripard2016-08-20-0/+26
| | | | | | | | Add a function to retrieve the highest phandle in a given device tree. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Reviewed-by: Stefan Agner <stefan@agner.ch> Acked-by: Simon Glass <sjg@chromium.org>
* lib/libfdt/: General aesthetic/style fixes.Robert P. J. Day2016-06-19-5/+5
| | | | | | | | | | | | | A number of style fixes across the files in this directory, including: * Correct invalid kernel-doc content. * Tidy up massive comment in fdt_region.c. * Use correct spelling of "U-Boot". * Replace tests of "! <var>" with "!<var>". * Replace "libfdt_env.h" with <libfdt_env.h>. Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Acked-by: Simon Glass <sjg@chromium.org>
* libfdt: fix error code of fdt_count_strings()Masahiro Yamada2015-07-20-1/+1
| | | | | | | | | | | | | 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 <yamada.masahiro@socionext.com> Fixes: bc4147ab2d69 ("fdt: Add a function to count strings") Acked-by: Simon Glass <sjg@chromium.org>
* libfdt: fix error code of fdt_get_string_index()Masahiro Yamada2015-07-20-1/+1
| | | | | | | | | | 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 <yamada.masahiro@socionext.com> Fixes: 5094eb408a5d ("fdt: Add functions to retrieve strings") Acked-by: Simon Glass <sjg@chromium.org>
* fdt: Fix handling of paths with options in themHans de Goede2015-04-23-3/+22
| | | | | | | | | | | | | | | | 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 <hdegoede@redhat.com> Acked-by: Simon Glass <sjg@chromium.org>
* fdt: Add functions to retrieve stringsThierry Reding2014-10-22-0/+30
| | | | | | | | | | | 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 <treding@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
* fdt: Add a function to get the index of a stringThierry Reding2014-10-22-0/+26
| | | | | | | | | 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 <treding@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
* fdt: Add a function to count stringsThierry Reding2014-10-22-0/+20
| | | | | | | | 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 <treding@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
* libfdt: Fix segfault when calling fit_check_format() on corrupt FIT imagesJon Nalley2014-06-19-1/+1
| | | | | | | | | | | It has been observed that fit_check_format() will fail when passed a corrupt FIT image. This was tracked down to _fdt_string_eq(): return (strlen(p) == len) && (memcmp(p, s, len) == 0); In the case of a corrupt FIT image one can't depend on 'p' being NULL terminated. I changed it to use strnlen() to fix the issue. Signed-off-by: Tom Rini <trini@ti.com>
* libfdt: SPDX-License-Identifier: GPL-2.0+ BSD-2-ClauseRoger Meier2013-08-10-46/+1
| | | | | Signed-off-by: Roger Meier <roger@bufferoverflow.ch> Acked-by: Wolfgang Denk <wd@denx.de>
* Export fdt_stringlist_contains()Simon Glass2013-05-10-3/+2
| | | | | | | | | This function is useful outside libfdt, so export it. Ref: DTC commit b7aa300e Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: David Gibson <david@gibson.dropbear.id.au>
* libfdt: update from upstream dtc commit 142419eKim Phillips2013-02-07-1/+1
| | | | | | | commit 142419e "dtc/libfdt: sparse fixes", for u-boot's libfdt copy. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Cc: Jerry Van Baren <gvb.uboot@gmail.com>
* libfdt: Implement property iteration functionsDavid Gibson2011-07-14-36/+87
| | | | | | | | | | | | | | | | | | | | | | | | | | | For ages, we've been talking about adding functions to libfdt to allow iteration through properties. So, finally, here are some. I got bogged down on this for a long time because I didn't want to expose offsets directly to properties to the callers. But without that, attempting to make reasonable iteration functions just became horrible. So eventually, I settled on an interface which does now expose property offsets. fdt_first_property_offset() and fdt_next_property_offset() are used to step through the offsets of the properties starting from a particularly node offset. The details of the property at each offset can then be retrieved with either fdt_get_property_by_offset() or fdt_getprop_by_offset() which have interfaces similar to fdt_get_property() and fdt_getprop() respectively. No explicit testcases are included, but we do use the new functions to reimplement the existing fdt_get_property() function. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> This was extracted from the DTC commit: 73dca9ae0b9abe6924ba640164ecce9f8df69c5a Mon Sep 17 00:00:00 2001 Signed-off-by: Gerald Van Baren <vanbaren@cideas.com>
* Support ePAPR compliant phandle propertiesDavid Gibson2011-07-14-6/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, the Linux kernel, libfdt and dtc, when using flattened device trees encode a node's phandle into a property named "linux,phandle". The ePAPR specification, however - aiming as it is to not be a Linux specific spec - requires that phandles be encoded in a property named simply "phandle". This patch adds support for this newer approach to dtc and libfdt. Specifically: - fdt_get_phandle() will now return the correct phandle if it is supplied in either of these properties - fdt_node_offset_by_phandle() will correctly find a node with the given phandle encoded in either property. - By default, when auto-generating phandles, dtc will encode it into both properties for maximum compatibility. A new -H option allows either only old-style or only new-style properties to be generated. - If phandle properties are explicitly supplied in the dts file, dtc will not auto-generate ones in the alternate format. - If both properties are supplied, dtc will check that they have the same value. - Some existing testcases are updated to use a mix of old and new-style phandles, partially testing the changes. - A new phandle_format test further tests the libfdt support, and the -H option. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> This was extracted from the DTC commit: d75b33af676d0beac8398651a7f09037555a550b Mon Sep 17 00:00:00 2001 Signed-off-by: Gerald Van Baren <vanbaren@cideas.com>
* Move libfdt/ into lib/Peter Tyser2010-04-13-0/+506
Move the libfdt directory into the common lib/ directory to clean up the top-level directory. Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
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