feat(fdt-wrappers): add CPU enumeration utility function
This change adds a new utility function - `fdtw_for_each_cpu` - to
invoke a callback for every CPU node listed in a flattened device tree
(FDT) with the node identifier and the MPIDR of the core it describes.
Signed-off-by: Chris Kay <chris.kay@arm.com>
Change-Id: Iabb5c0f0c9d11928a4a7a41cdc7d1e09aadeb2bc
diff --git a/include/common/fdt_wrappers.h b/include/common/fdt_wrappers.h
index 98e7a3e..9c7180c 100644
--- a/include/common/fdt_wrappers.h
+++ b/include/common/fdt_wrappers.h
@@ -41,6 +41,9 @@
uint64_t fdtw_translate_address(const void *dtb, int bus_node,
uint64_t base_address);
+int fdtw_for_each_cpu(const void *fdt,
+ int (*callback)(const void *dtb, int node, uintptr_t mpidr));
+
static inline uint32_t fdt_blob_size(const void *dtb)
{
const uint32_t *dtb_header = dtb;