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| author | Arnab Basu <arnab.basu@freescale.com> | 2014-09-08 12:19:58 -0700 |
|---|---|---|
| committer | York Sun <yorksun@freescale.com> | 2014-09-25 08:36:19 -0700 |
| commit | 08df4a21c7d580770cabd7ba62591da035d9a545 (patch) | |
| tree | 727980ab5b4e8a731550bd4c1b256edcc72fd0bb /include/fdt_support.h | |
| parent | bb5783224b9b12eecf406761f82e3de2a2ca9dae (diff) | |
| download | u-boot-08df4a21c7d580770cabd7ba62591da035d9a545.tar.gz | |
fdt_support: Move of_read_number to fdt_support.h
This is being done so that it can be used outside 'fdt_support.c'. Making
life more convenient when reading device node properties that can be 32
or 64 bits long.
Signed-off-by: Arnab Basu <arnab.basu@freescale.com>
Cc: Scott Wood <scottwood@freescale.com>
Diffstat (limited to 'include/fdt_support.h')
| -rw-r--r-- | include/fdt_support.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/fdt_support.h b/include/fdt_support.h index 1bda686a0b..649fbd6cc5 100644 --- a/include/fdt_support.h +++ b/include/fdt_support.h @@ -133,6 +133,15 @@ static inline int fdt_status_fail_by_alias(void *fdt, const char *alias) return fdt_set_status_by_alias(fdt, alias, FDT_STATUS_FAIL, 0); } +/* Helper to read a big number; size is in cells (not bytes) */ +static inline u64 of_read_number(const fdt32_t *cell, int size) +{ + u64 r = 0; + while (size--) + r = (r << 32) | fdt32_to_cpu(*(cell++)); + return r; +} + #endif /* ifdef CONFIG_OF_LIBFDT */ #ifdef USE_HOSTCC |