[U-Boot] [PATCH 17/29] dm: core: Select device tree control correctly for SPL

[Simon Glass]

Some boards will not use device tree for SPL even with driver model. Add
the logic to support this.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

 drivers/core/root.c | 14 ++++++++------
 include/fdtdec.h    | 10 ++++++++++
 2 files changed, 18 insertions(+), 6 deletions(-)

diff --git a/drivers/core/root.c b/drivers/core/root.c
index 9b5c6bb..12d0460 100644
--- a/drivers/core/root.c
+++ b/drivers/core/root.c
@@ -197,13 +197,15 @@ int dm_init_and_scan(bool pre_reloc_only)
 		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;
+
+	if (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
+
 	ret = dm_scan_other(pre_reloc_only);
 	if (ret)
 		return ret;
diff --git a/include/fdtdec.h b/include/fdtdec.h
index a49a184..489e8a6 100644
--- a/include/fdtdec.h
+++ b/include/fdtdec.h
@@ -41,6 +41,16 @@ struct fdt_memory {
 	fdt_addr_t end;
 };
 
+#ifdef CONFIG_OF_CONTROL
+# if defined(CONFIG_SPL_BUILD) && defined(SPL_DISABLE_OF_CONTROL)
+#  define OF_CONTROL 0
+# else
+#  define OF_CONTROL 1
+# endif
+#else
+# define OF_CONTROL 0
+#endif
+
 /*
  * Information about a resource. start is the first address of the resource
  * and end is the last address (inclusive). The length of the resource will
-- 
2.2.0.rc0.207.ga3a616c