From: Arnab Basu arnab.basu@freescale.com
of_bus_default_count_cells can be used to get the #address-cells and #size-cells defined by the current node's parent node. This is required when using of_read_number to read from FDT nodes that can be 32 or 64 bytes depending on values defined by the parent.
Signed-off-by: Arnab Basu arnab.basu@freescale.com CC: Scott Wood scottwood@freescale.com --- Change log v2: new patch
common/fdt_support.c | 2 +- include/fdt_support.h | 3 +++ 2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/common/fdt_support.c b/common/fdt_support.c index 7ec7d4f..3f64156 100644 --- a/common/fdt_support.c +++ b/common/fdt_support.c @@ -963,7 +963,7 @@ struct of_bus { };
/* Default translator (generic bus) */ -static void of_bus_default_count_cells(void *blob, int parentoffset, +void of_bus_default_count_cells(void *blob, int parentoffset, int *addrc, int *sizec) { const fdt32_t *prop; diff --git a/include/fdt_support.h b/include/fdt_support.h index 649fbd6..c3d1fbc 100644 --- a/include/fdt_support.h +++ b/include/fdt_support.h @@ -142,6 +142,9 @@ static inline u64 of_read_number(const fdt32_t *cell, int size) return r; }
+void of_bus_default_count_cells(void *blob, int parentoffset, + int *addrc, int *sizec); + #endif /* ifdef CONFIG_OF_LIBFDT */
#ifdef USE_HOSTCC