dm: Support driver model prior to relocation
Initialise devices marked 'pre-reloc' and make them available prior to
relocation. Note that this requires pre-reloc malloc() to be available.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/core/root.c b/drivers/core/root.c
index ce4eef3..6059756 100644
--- a/drivers/core/root.c
+++ b/drivers/core/root.c
@@ -105,6 +105,31 @@
}
#endif
+int dm_init_and_scan(bool pre_reloc_only)
+{
+ int ret;
+
+ ret = dm_init();
+ if (ret) {
+ debug("dm_init() failed: %d\n", ret);
+ return ret;
+ }
+ ret = dm_scan_platdata(pre_reloc_only);
+ if (ret) {
+ debug("dm_scan_platdata() failed: %d\n", ret);
+ return ret;
+ }
+#ifdef CONFIG_OF_CONTROL
+ ret = dm_scan_fdt(gd->fdt_blob, pre_reloc_only);
+ if (ret) {
+ debug("dm_scan_fdt() failed: %d\n", ret);
+ return ret;
+ }
+#endif
+
+ return 0;
+}
+
/* This is the root driver - all drivers are children of this */
U_BOOT_DRIVER(root_driver) = {
.name = "root_driver",