dm: Add base driver model support
Add driver model functionality for generic board.
This includes data structures and base code for registering devices and
uclasses (groups of devices with the same purpose, e.g. all I2C ports will
be in the same uclass).
The feature is enabled with CONFIG_DM.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Pavel Herrmann <morpheus.ibis@gmail.com>
Signed-off-by: Viktor Křivák <viktor.krivak@gmail.com>
Signed-off-by: Tomas Hlavacek <tmshlvck@gmail.com>
diff --git a/include/asm-generic/global_data.h b/include/asm-generic/global_data.h
index 0de0bea..707400e 100644
--- a/include/asm-generic/global_data.h
+++ b/include/asm-generic/global_data.h
@@ -21,6 +21,8 @@
*/
#ifndef __ASSEMBLY__
+#include <linux/list.h>
+
typedef struct global_data {
bd_t *bd;
unsigned long flags;
@@ -61,6 +63,12 @@
unsigned long start_addr_sp; /* start_addr_stackpointer */
unsigned long reloc_off;
struct global_data *new_gd; /* relocated global data */
+
+#ifdef CONFIG_DM
+ struct device *dm_root; /* Root instance for Driver Model */
+ struct list_head uclass_root; /* Head of core tree */
+#endif
+
const void *fdt_blob; /* Our device tree, NULL if none */
void *new_fdt; /* Relocated FDT */
unsigned long fdt_size; /* Space reserved for relocated FDT */