diff options
Diffstat (limited to 'common/fdt_decode.c')
| -rw-r--r-- | common/fdt_decode.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/common/fdt_decode.c b/common/fdt_decode.c index 9c56bcf1d39..c9bb28f6d61 100644 --- a/common/fdt_decode.c +++ b/common/fdt_decode.c @@ -114,6 +114,27 @@ static s32 get_int(const void *blob, int node, const char *prop_name, } /** + * Look up a boolean property in a node and return it. + * + * A boolean properly is true if present in the device tree and false if not + * present. + * + * @param blob FDT blob + * @param node node to examine + * @param prop_name name of property to find + * @return 1 if the properly is present; 0 if it isn't present + */ +static int get_bool(const void *blob, int node, const char *prop_name) +{ + const s32 *cell; + int len; + + debug("%s: %s\n", __func__, prop_name); + cell = fdt_getprop(blob, node, prop_name, &len); + return (cell) ? 1 : 0; +} + +/** * Look up a property in a node and check that it has a minimum length. * * @param blob FDT blob @@ -641,6 +662,7 @@ int fdt_decode_i2c(const void *blob, int node, struct fdt_i2c *config) config->pinmux = get_int(blob, node, "pinmux", 0); config->speed = get_int(blob, node, "speed", 0); config->periph_id = get_int(blob, node, "periph-id", -1); + config->use_dvc_ctlr = get_bool(blob, node, "use-dvc-ctlr"); if (config->periph_id == -1) return -FDT_ERR_MISSING; |