[U-Boot] [RFC PATCH v2 07/14] dm: Set up driver model after relocation

[Simon Glass]

Make driver model available after relocation, by setting up data structures
and scanning for devices using compiled-in platform_data and (when available)
the device tree.

Signed-off-by: Simon Glass <sjg at chromium.org>
---
Changes in v2: None

 common/board_r.c  | 33 +++++++++++++++++++++++++++++++++
 common/dm/lists.c |  2 ++
 common/dm/root.c  |  2 ++
 3 files changed, 37 insertions(+)

diff --git a/common/board_r.c b/common/board_r.c
index f801e41..de1768b 100644
--- a/common/board_r.c
+++ b/common/board_r.c
@@ -34,6 +34,7 @@
 #ifdef CONFIG_HAS_DATAFLASH
 #include <dataflash.h>
 #endif
+#include <dm.h>
 #include <environment.h>
 #include <fdtdec.h>
 #if defined(CONFIG_CMD_IDE)
@@ -66,7 +67,9 @@
 #ifdef CONFIG_X86
 #include <asm/init_helpers.h>
 #endif
+#include <dm/root.h>
 #include <linux/compiler.h>
+#include <linux/err.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -269,6 +272,33 @@ static int initr_malloc(void)
 	return 0;
 }
 
+#ifdef CONFIG_DM
+static int initr_dm(void)
+{
+	int ret;
+
+	ret = dm_init();
+	if (ret) {
+		debug("dm_init() failed: %d\n", ret);
+		return ret;
+	}
+	ret = dm_scan_platform_data();
+	if (ret) {
+		debug("dm_scan_platform_data() failed: %d\n", ret);
+		return ret;
+	}
+#ifdef CONFIG_OF_CONTROL
+	ret = dm_scan_fdt(gd->fdt_blob);
+	if (ret) {
+		debug("dm_scan_fdt() failed: %d\n", ret);
+		return ret;
+	}
+#endif
+
+	return 0;
+}
+#endif
+
 __weak int power_init_board(void)
 {
 	return 0;
@@ -765,6 +795,9 @@ init_fnc_t init_sequence_r[] = {
 #endif
 	initr_barrier,
 	initr_malloc,
+#ifdef CONFIG_DM
+	initr_dm,
+#endif
 #ifdef CONFIG_ARCH_EARLY_INIT_R
 	arch_early_init_r,
 #endif
diff --git a/common/dm/lists.c b/common/dm/lists.c
index 02bcb50..ec7825b 100644
--- a/common/dm/lists.c
+++ b/common/dm/lists.c
@@ -110,6 +110,7 @@ int lists_bind_drivers(struct device *parent)
 	return result;
 }
 
+#ifdef CONFIG_OF_CONTROL
 /**
  * driver_check_compatible() - Check if a driver is compatible with this node
  *
@@ -179,3 +180,4 @@ int lists_bind_fdt(struct device *parent, const void *blob, int offset)
 
 	return result;
 }
+#endif
diff --git a/common/dm/root.c b/common/dm/root.c
index bba793a..b6733dd 100644
--- a/common/dm/root.c
+++ b/common/dm/root.c
@@ -92,6 +92,7 @@ int dm_scan_platform_data(void)
 	return 0;
 }
 
+#ifdef CONFIG_OF_CONTROL
 int dm_scan_fdt(const void *blob)
 {
 	int offset = 0;
@@ -112,6 +113,7 @@ int dm_scan_fdt(const void *blob)
 
 	return ret;
 }
+#endif
 
 U_BOOT_DRIVER(root_driver) = {
 	.name	= "root_driver",
-- 
1.8.2.1