diff options
author | Simon Glass | 2018-06-11 13:07:10 -0600 |
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committer | Simon Glass | 2018-07-09 09:11:00 -0600 |
commit | 7e5196c409f17091f2aeca144c6d76750df81cc4 (patch) | |
tree | 427b03797b692f0752fecd92dccc397027df98da /drivers/core/ofnode.c | |
parent | 90c08fa038451d6d7b7d8711bfd829b61d64c490 (diff) |
dm: core: Add ofnode function to read a 64-bit int
We have a 32-bit version of this function. Add a 64-bit version as well so
we can easily read 64-bit ints from the device tree.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/core/ofnode.c')
-rw-r--r-- | drivers/core/ofnode.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/core/ofnode.c b/drivers/core/ofnode.c index 3cf3205a2f1..b2b02e4abfb 100644 --- a/drivers/core/ofnode.c +++ b/drivers/core/ofnode.c @@ -55,6 +55,38 @@ int ofnode_read_s32_default(ofnode node, const char *propname, s32 def) return def; } +int ofnode_read_u64(ofnode node, const char *propname, u64 *outp) +{ + const fdt64_t *cell; + int len; + + assert(ofnode_valid(node)); + debug("%s: %s: ", __func__, propname); + + if (ofnode_is_np(node)) + return of_read_u64(ofnode_to_np(node), propname, outp); + + cell = fdt_getprop(gd->fdt_blob, ofnode_to_offset(node), propname, + &len); + if (!cell || len < sizeof(*cell)) { + debug("(not found)\n"); + return -EINVAL; + } + *outp = fdt64_to_cpu(cell[0]); + debug("%#llx (%lld)\n", (unsigned long long)*outp, + (unsigned long long)*outp); + + return 0; +} + +int ofnode_read_u64_default(ofnode node, const char *propname, u64 def) +{ + assert(ofnode_valid(node)); + ofnode_read_u64(node, propname, &def); + + return def; +} + bool ofnode_read_bool(ofnode node, const char *propname) { const void *prop; |