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| author | Anton Staff <robotboy@chromium.org> | 2012-04-17 09:01:28 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2012-05-15 08:31:39 +0200 |
| commit | bed4d89277629904bfcefa37589c71e4b7424bea (patch) | |
| tree | fb96d19d9a5484a4a3098c8e12095bfd77a6ac74 /lib | |
| parent | 649d0ffbc1eca693726937ff40e7d7ab852f4ae9 (diff) | |
| download | olio-uboot-2014.01-bed4d89277629904bfcefa37589c71e4b7424bea.tar.xz olio-uboot-2014.01-bed4d89277629904bfcefa37589c71e4b7424bea.zip | |
fdt: Add fdtdec functions to read byte array
Sometimes we don't need a full cell for each value. This provides
a simple function to read a byte array, both with and without
copying it.
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 | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/lib/fdtdec.c b/lib/fdtdec.c index 42c3e893d..ba5c59148 100644 --- a/lib/fdtdec.c +++ b/lib/fdtdec.c @@ -476,3 +476,27 @@ int fdtdec_setup_gpio(struct fdt_gpio_state *gpio) return -1; return 0; } + +int fdtdec_get_byte_array(const void *blob, int node, const char *prop_name, + u8 *array, int count) +{ + const u8 *cell; + int err; + + cell = get_prop_check_min_len(blob, node, prop_name, count, &err); + if (!err) + memcpy(array, cell, count); + return err; +} + +const u8 *fdtdec_locate_byte_array(const void *blob, int node, + const char *prop_name, int count) +{ + const u8 *cell; + int err; + + cell = get_prop_check_min_len(blob, node, prop_name, count, &err); + if (err) + return NULL; + return cell; +} |