@@ -191,6 +191,13 @@ int qemu_devtree_setprop_phandle(void *fdt, const char *node_path,
return qemu_devtree_setprop_cell(fdt, node_path, property, phandle);
}
+uint32_t qemu_devtree_alloc_phandle(void *fdt)
+{
+ static int phandle = 0x8000;
+
+ return phandle++;
+}
+
int qemu_devtree_nop_node(void *fdt, const char *node_path)
{
int r;
@@ -27,6 +27,7 @@ int qemu_devtree_setprop_phandle(void *fdt, const char *node_path,
const char *property,
const char *target_node_path);
uint32_t qemu_devtree_get_phandle(void *fdt, const char *path);
+uint32_t qemu_devtree_alloc_phandle(void *fdt);
int qemu_devtree_nop_node(void *fdt, const char *node_path);
int qemu_devtree_add_subnode(void *fdt, const char *name);
Phandle references work by having 2 pieces: - a "phandle" 1-cell property in the device tree node - a reference to the same value in a property we want to point to the other node To generate the 1-cell property, we need an allocation mechanism that gives us a unique number space. This patch adds an allocator for these properties. Signed-off-by: Alexander Graf <agraf@suse.de> --- device_tree.c | 7 +++++++ device_tree.h | 1 + 2 files changed, 8 insertions(+), 0 deletions(-)