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* libfdt: Add function to explicitly expand aliasesDavid Gibson2008-10-02-7/+19
| | | | | | | | | | Kumar has already added alias expansion to fdt_path_offset(). However, in some circumstances it may be convenient for the user of libfdt to explicitly get the string expansion of an alias. This patch adds a function to do this, fdt_get_alias(), and uses it to implement fdt_path_offset(). Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
* libfdt: Fix bugs in fdt_get_path()David Gibson2008-10-01-12/+11
| | | | | | | | | | | | | | | | | The current implementation of fdt_get_path() has a couple of bugs, fixed by this patch. First, contrary to its documentation, on success it returns the length of the node's path, rather than 0. The testcase is correspondingly wrong, and the patch fixes this as well. Second, in some circumstances, it will return -FDT_ERR_BADOFFSET instead of -FDT_ERR_NOSPACE when given insufficient buffer space. Specifically this happens when there is insufficient space even to hold the path's second last component. This behaviour is corrected, and the testcase updated to check it. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
* libfdt: Add support for using aliases in fdt_path_offset()Kumar Gala2008-08-24-2/+19
| | | | | | | | | | If the path doesn't start with '/' check to see if it matches some alias under "/aliases" and substitute the matching alias value in the path and retry the lookup. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Acked-by: David Gibson <david@gibson.dropbear.id.au> Acked-by: Gerald Van Baren <vanbaren@cideas.com>
* libfdt: Implement fdt_get_property_namelen() and fdt_getprop_namelen()David Gibson2008-08-24-7/+30
| | | | | | | | | | | | | | | | | | | | | | As well as fdt_subnode_offset(), libfdt includes an fdt_subnode_offset_namelen() function that takes the subnode name to look up not as a NUL-terminated string, but as a string with an explicit length. This can be useful when the caller has the name as part of a longer string, such as a full path. However, we don't have corresponding 'namelen' versions for fdt_get_property() and fdt_getprop(). There are less obvious use cases for these variants on property names, but there are circumstances where they can be useful e.g. looking up property names which need to be parsed from a longer string buffer such as user input or a configuration file, or looking up an alias in a path with IEEE1275 style aliases. So, since it's very easy to implement such variants, this patch does so. The original NUL-terminated variants are, of course, implemented in terms of the namelen versions. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
* libfdt: Forgot one function when cleaning the namespaceDavid Gibson2008-08-24-2/+3
| | | | | | | | | | | | | | In commit b6d80a20fc293f3b995c3ce1a6744a5574192125, we renamed all libfdt functions to be prefixed with fdt_ or _fdt_ to minimise the chance of collisions with things from whatever package libfdt is embedded in, pulled into the libfdt build via that environment's libfdt_env.h. Except... I missed one. This patch applies the same treatment to _stringlist_contains(). While we're at it, also make it static since it's only used in the same file. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
* libfdt: Increase namespace-pollution paranoiaDavid Gibson2008-08-24-11/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | libfdt is supposed to easy to embed in projects all and sundry. Often, it won't be practical to separate the embedded libfdt's namespace from that of the surrounding project. Which means there can be namespace conflicts between even libfdt's internal/static functions and functions or macros coming from the surrounding project's headers via libfdt_env.h. This patch, therefore, renames a bunch of libfdt internal functions and macros and makes a few other chances to reduce the chances of namespace collisions with embedding projects. Specifically: - Internal functions (even static ones) are now named _fdt_*() - The type and (static) global for the error table in fdt_strerror() gain an fdt_ prefix - The unused macro PALIGN is removed - The memeq and streq macros are removed and open-coded in the users (they were only used once each) - Other macros gain an FDT_ prefix - To save some of the bulk from the previous change, an FDT_TAGALIGN() macro is introduced, where FDT_TAGALIGN(x) == FDT_ALIGN(x, FDT_TAGSIZE) Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
* dtc: Enable and fix -Wcast-qual warningsDavid Gibson2008-08-24-1/+1
| | | | | | | | | | | | | Enabling -Wcast-qual warnings in dtc shows up a number of places where we are incorrectly discarding a const qualification. There are also some places where we are intentionally discarding the 'const', and we need an ugly cast through uintptr_t to suppress the warning. However, most of these are pretty well isolated with the *_w() functions. So in the interests of maximum safety with const qualifications, this patch enables the warnings and fixes the existing complaints. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Acked-by: Gerald Van Baren <vanbaren@cideas.com>
* dtc: Enable and fix -Wpointer-arith warningsDavid Gibson2008-08-24-2/+2
| | | | | | | | | | | | | | This patch turns on the -Wpointer-arith option in the dtc Makefile, and fixes the resulting warnings due to using (void *) in pointer arithmetic. While convenient, pointer arithmetic on void * is not portable, so it's better that we avoid it, particularly in libfdt. Also add necessary definition of uintptr_t needed by David Gibson's changeset "dtc: Enable and fix -Wpointer-arith warnings" (the definition comes from stdint.h, which u-boot doesn't have). -- gvb Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Gerald Van Baren <vanbaren@cideas.com>
* libfdt: Several cleanups to parameter checkingDavid Gibson2008-06-09-18/+8
| | | | | | | | | | | | | | | | | | | | | | This patch makes a couple of small cleanups to parameter checking of libfdt functions. - In several functions which take a node offset, we use an idiom involving fdt_next_tag() first to check that we have indeed been given a node offset. This patch adds a helper function _fdt_check_node_offset() to encapsulate this usage of fdt_next_tag(). - In fdt_rw.c in several places we have the expanded version of the RW_CHECK_HEADER() macro for no particular reason. This patch replaces those instances with an invocation of the macro; that's what it's for. - In fdt_sw.c we rename the check_header_sw() function to sw_check_header() to match the analgous function in fdt_rw.c, and we provide an SW_CHECK_HEADER() wrapper macro as RW_CHECK_HEADER() functions in fdt_rw.c Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
* Merge branch 'new-image' of git://www.denx.de/git/u-boot-testingBartlomiej Sieka2008-03-26-0/+4
|\ | | | | | | | | | | | | | | | | Conflicts: common/cmd_bootm.c cpu/mpc8xx/cpu.c Signed-off-by: Bartlomiej Sieka <tur@semihalf.com>
| * libfdt: Add and use a node iteration helper function.David Gibson2008-02-29-174/+84
| | | | | | | | | | | | | | | | | | This patch adds an fdt_next_node() function which can be used to iterate through nodes of the tree while keeping track of depth. This function is used to simplify the iteration code in a lot of other functions, and is also exported for use by library users. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| * [new uImage] Add libfdt support to mkimageBartlomiej Sieka2008-02-29-0/+4
| | | | | | | | Signed-off-by: Bartlomiej Sieka <tur@semihalf.com>
* | libfdt: Remove no longer used code from fdt_node_offset_by_compatible()David Gibson2008-03-18-11/+1
| | | | | | | | | | | | | | | | Since fdt_node_offset_by_compatible() was converted to the new fdt_next_node() iterator, a chunk of initialization code became redundant, but was not removed by oversight. This patch cleans it up. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
* | libfdt: Trivial cleanup for CHECK_HEADER)David Gibson2008-03-18-7/+0
| | | | | | | | | | | | | | | | | | | | | | Currently the CHECK_HEADER() macro is defined local to fdt_ro.c. However, there are a handful of functions (fdt_move, rw_check_header, fdt_open_into) from other files which could also use it (currently they open-code something more-or-less identical). Therefore, this patch moves CHECK_HEADER() to libfdt_internal.h and uses it in those places. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
* | libfdt: Add and use a node iteration helper function.David Gibson2008-03-18-174/+84
|/ | | | | | | | | This patch adds an fdt_next_node() function which can be used to iterate through nodes of the tree while keeping track of depth. This function is used to simplify the iteration code in a lot of other functions, and is also exported for use by library users. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
* Update libfdt from device tree compiler (dtc)Kumar Gala2007-11-21-232/+396
| | | | | | | Update libfdt to commit 8eaf5e358366017aa2e846c5038d1aa19958314e from the device tree compiler (dtc) project. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* Removed some nonused fdt functions and moved fdt_find_and_setprop out of libfdtKumar Gala2007-11-21-112/+0
| | | | | | | | | | | | | | Removed: fdt_node_is_compatible fdt_find_node_by_type fdt_find_compatible_node To ease merge of newer libfdt as we aren't using them anywhere at this time. Also moved fdt_find_and_setprop out of libfdt into fdt_support.c for the same reason. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [BUILD] conditionally compile libfdt/*.c in libfdt/MakefileKumar Gala2007-11-21-5/+0
| | | | | | | Modify libfdt/Makefile to conditionally compile the *.c files based on the board config. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* Minor coding style cleanup. Update CHANGELOG.Wolfgang Denk2007-08-13-1/+0
| | | | Signed-off-by: Wolfgang Denk <wd@denx.de>
* For fdt_find_node_by_path(), handle the root path properly.Gerald Van Baren2007-08-10-0/+4
| | | | | | | Also removes the special case root path detection in cmd_fdt.c since it is no longer necessary. Signed-off-by: Gerald Van Baren <vanbaren@cideas.com>
* Add fdt_find_node_by_type() and fdt_find_compatible_node() to LIBFDTGerald Van Baren2007-08-10-18/+143
| | | | | Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Acked-by: Gerald Van Baren <vanbaren@cideas.com>
* Replace fdt_node_offset() with fdt_find_node_by_path().Gerald Van Baren2007-08-10-1/+1
| | | | | | | | The new name matches more closely the kernel's name, which is also a much better description. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Acked-by: Gerald Van Baren <vanbaren@cideas.com>
* libfdt: Conditionally compile based on CONFIG_OF_LIBFDTGerald Van Baren2007-08-10-0/+6
| | | | | | | This is the way u-boot reduces configured-out code. At Wolfgang Grandegger and Wolfgang Denk's request, make libfdt conform. Signed-off-by: Gerald Van Baren <vanbaren@cideas.com>
* Clenaup, update CHANGELOGWolfgang Denk2007-04-18-1/+0
| | | | Signed-off-by: Wolfgang Denk <wd@denx.de>
* Add some utilities to manipulate the reserved memory map.Gerald Van Baren2007-04-14-0/+72
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* libfdt: Make fdt_check_header() publicGerald Van Baren2007-04-06-2/+2
| | | | | | | Changed _fdt_check_header() to fdt_check_header() and made it part of the interface - it is a useful routine. Also did some asthetics cleanup to the include files (headers).
* Minor cleanup.Wolfgang Denk2007-04-04-8/+6
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* Fix some minor whitespace violations.Gerald Van Baren2007-03-31-2/+2
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* libfdt: Enhanced and published fdt_next_tag()Gerald Van Baren2007-03-31-6/+110
| | | | | | | Enhanced the formerly private function _fdt_next_tag() to allow stepping through the tree, used to produce a human-readable dump, and made it part of the published interface. Also added some comments.
* libfdt: Import libfdt source (2 of 2)Gerald Van Baren2007-03-31-0/+229
This adds the applicable libfdt source files (unmodified) and a README to explain where the source came from.
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