diff options
author | Jeremy Kerr <jeremy.kerr@canonical.com> | 2010-01-30 11:41:49 +0300 |
---|---|---|
committer | Grant Likely <grant.likely@secretlab.ca> | 2010-02-09 18:34:10 +0300 |
commit | 2e89e685a8fd0e8334de967739d11e2e28c1a4dd (patch) | |
tree | 6fdf51430532616584f0ffa65376b5a2a4c49a40 /include/linux/of.h | |
parent | 36b9d3070d653af5807cef74ff129721d9047107 (diff) | |
download | linux-2e89e685a8fd0e8334de967739d11e2e28c1a4dd.tar.xz |
of: use __be32 for cell value accessors
Currently, we're using u32 for cell values, and hence assuming
host-endian device trees.
As we'd like to support little-endian platforms, use a __be32 for cell
values, and convert in the cell accessors.
Signed-off-by: Jeremy Kerr <jeremy.kerr@canonical.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'include/linux/of.h')
-rw-r--r-- | include/linux/of.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/include/linux/of.h b/include/linux/of.h index fd47c81d7a25..fa5571b6e219 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -20,6 +20,8 @@ #include <linux/kref.h> #include <linux/mod_devicetable.h> +#include <asm/byteorder.h> + typedef u32 phandle; typedef u32 ihandle; @@ -95,16 +97,16 @@ extern void of_node_put(struct device_node *node); */ /* Helper to read a big number; size is in cells (not bytes) */ -static inline u64 of_read_number(const u32 *cell, int size) +static inline u64 of_read_number(const __be32 *cell, int size) { u64 r = 0; while (size--) - r = (r << 32) | *(cell++); + r = (r << 32) | be32_to_cpu(*(cell++)); return r; } /* Like of_read_number, but we want an unsigned long result */ -static inline unsigned long of_read_ulong(const u32 *cell, int size) +static inline unsigned long of_read_ulong(const __be32 *cell, int size) { /* toss away upper bits if unsigned long is smaller than u64 */ return of_read_number(cell, size); |