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| author | Simon Glass <sjg@chromium.org> | 2012-04-02 13:18:41 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2012-05-15 08:31:36 +0200 |
| commit | 96875e7d3b9900d0e63f0b591ff5693b31c4d9c3 (patch) | |
| tree | 0960bc43115c34d73b07b67248a87a54217bde3a /lib | |
| parent | 39007ec8cdd8ecfee659dca90f3b267b8e68da3c (diff) | |
| download | u-boot-imx-96875e7d3b9900d0e63f0b591ff5693b31c4d9c3.zip u-boot-imx-96875e7d3b9900d0e63f0b591ff5693b31c4d9c3.tar.gz u-boot-imx-96875e7d3b9900d0e63f0b591ff5693b31c4d9c3.tar.bz2 | |
fdt: Add function to locate an array in the device tree
fdtdec_locate_array() locates an integer array but does not copy it. This
saves the caller having to allocated wasted space.
Access to array elements should be through the fdt32_to_cpu() macro.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/fdtdec.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/fdtdec.c b/lib/fdtdec.c index bdec1a0..4a5ab71 100644 --- a/lib/fdtdec.c +++ b/lib/fdtdec.c @@ -363,6 +363,17 @@ int fdtdec_get_int_array(const void *blob, int node, const char *prop_name, return err; } +const u32 *fdtdec_locate_array(const void *blob, int node, + const char *prop_name, int count) +{ + const u32 *cell; + int err; + + cell = get_prop_check_min_len(blob, node, prop_name, + sizeof(u32) * count, &err); + return err ? NULL : cell; +} + int fdtdec_get_bool(const void *blob, int node, const char *prop_name) { const s32 *cell; |