6 files changed, 90 insertions, 3 deletions
diff --git a/include/asm-generic/global_data.h b/include/asm-generic/global_data.h
index 16fd305..104282b 100644
--- a/include/asm-generic/global_data.h
+++ b/include/asm-generic/global_data.h
@@ -244,6 +244,10 @@ struct global_data {
 	 * @fdt_size: space reserved for relocated device space
 	 */
 	unsigned long fdt_size;
+	/**
+	 * @fdt_src: Source of FDT
+	 */
+	enum fdt_source_t fdt_src;
 #if CONFIG_IS_ENABLED(OF_LIVE)
 	/**
 	 * @of_root: root node of the live tree
@@ -512,6 +516,14 @@ static_assert(sizeof(struct global_data) == GD_SIZE);
 #define gd_acpi_ctx()		NULL
 #endif
 
+#if CONFIG_IS_ENABLED(MULTI_DTB_FIT)
+#define gd_multi_dtb_fit()	gd->multi_dtb_fit
+#define gd_set_multi_dtb_fit(_dtb)	gd->multi_dtb_fit = _dtb
+#else
+#define gd_multi_dtb_fit()	NULL
+#define gd_set_multi_dtb_fit(_dtb)
+#endif
+
 /**
  * enum gd_flags - global data flags
  *
diff --git a/include/dm/device.h b/include/dm/device.h
index 544734e..cf785f7 100644
--- a/include/dm/device.h
+++ b/include/dm/device.h
@@ -593,7 +593,7 @@ int device_get_child(const struct udevice *parent, int index,
 		     struct udevice **devp);
 
 /**
- * device_get_child_count() - Get the available child count of a device
+ * device_get_child_count() - Get the child count of a device
  *
  * Returns the number of children to a device.
  *
@@ -602,6 +602,15 @@ int device_get_child(const struct udevice *parent, int index,
 int device_get_child_count(const struct udevice *parent);
 
 /**
+ * device_get_decendent_count() - Get the total number of decendents of a device
+ *
+ * Returns the total number of decendents, including all children
+ *
+ * @parent:	Parent device to check
+ */
+int device_get_decendent_count(const struct udevice *parent);
+
+/**
  * device_find_child_by_seq() - Find a child device based on a sequence
  *
  * This searches for a device with the given seq.
diff --git a/include/dm/root.h b/include/dm/root.h
index 42510b1..780f269 100644
--- a/include/dm/root.h
+++ b/include/dm/root.h
@@ -131,4 +131,12 @@ int dm_remove_devices_flags(uint flags);
 static inline int dm_remove_devices_flags(uint flags) { return 0; }
 #endif
 
+/**
+ * dm_get_stats() - Get some stats for driver mode
+ *
+ * @device_countp: Returns total number of devices that are bound
+ * @uclass_countp: Returns total number of uclasses in use
+ */
+void dm_get_stats(int *device_countp, int *uclass_countp);
+
 #endif
diff --git a/include/dm/uclass-internal.h b/include/dm/uclass-internal.h
index 49808c5..fb0edcc 100644
--- a/include/dm/uclass-internal.h
+++ b/include/dm/uclass-internal.h
@@ -307,6 +307,13 @@ static inline int uclass_pre_remove_device(struct udevice *dev) { return 0; }
 #endif
 
 /**
+ * uclass_get_count() - Get the number of uclasses
+ *
+ * Returns the number of uclasses instantiated in driver model
+ */
+int uclass_get_count(void);
+
+/**
  * uclass_find() - Find uclass by its id
  *
  * @id:		Id to serach for
diff --git a/include/dt-bindings/clock/bcm2835.h b/include/dt-bindings/clock/bcm2835.h
index 2cec01f..b60c034 100644
--- a/include/dt-bindings/clock/bcm2835.h
+++ b/include/dt-bindings/clock/bcm2835.h
@@ -58,3 +58,5 @@
 #define BCM2835_CLOCK_DSI1E		48
 #define BCM2835_CLOCK_DSI0P		49
 #define BCM2835_CLOCK_DSI1P		50
+
+#define BCM2711_CLOCK_EMMC2		51
diff --git a/include/fdtdec.h b/include/fdtdec.h
index 6c7ab88..09525ce 100644
--- a/include/fdtdec.h
+++ b/include/fdtdec.h
@@ -55,6 +55,31 @@ struct bd_info;
 #define SPL_BUILD	0
 #endif
 
+/**
+ * enum fdt_source_t - indicates where the devicetree came from
+ *
+ * These are listed in approximate order of desirability after FDTSRC_NONE
+ *
+ * @FDTSRC_SEPARATE: Appended to U-Boot. This is the normal approach if U-Boot
+ *	is the only firmware being booted
+ * @FDTSRC_FIT: Found in a multi-dtb FIT. This should be used when U-Boot must
+ *	select a devicetree from many options
+ * @FDTSRC_BOARD: Located by custom board code. This should only be used when
+ *	the prior stage does not support FDTSRC_PASSAGE
+ * @FDTSRC_EMBED: Embedded into U-Boot executable. This should onyl be used when
+ *	U-Boot is packaged as an ELF file, e.g. for debugging purposes
+ * @FDTSRC_ENV: Provided by the fdtcontroladdr environment variable. This should
+ *	be used for debugging/development only
+ * @FDTSRC_NONE: No devicetree at all
+ */
+enum fdt_source_t {
+	FDTSRC_SEPARATE,
+	FDTSRC_FIT,
+	FDTSRC_BOARD,
+	FDTSRC_EMBED,
+	FDTSRC_ENV,
+};
+
 /*
  * 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
@@ -111,6 +136,20 @@ struct fdt_pci_addr {
 extern u8 __dtb_dt_begin[];	/* embedded device tree blob */
 extern u8 __dtb_dt_spl_begin[];	/* embedded device tree blob for SPL/TPL */
 
+/* Get a pointer to the embedded devicetree, if there is one, else NULL */
+static inline u8 *dtb_dt_embedded(void)
+{
+#ifdef CONFIG_OF_EMBED
+# ifdef CONFIG_SPL_BUILD
+	return __dtb_dt_spl_begin;
+# else
+	return __dtb_dt_begin;
+# endif
+#else
+	return NULL;
+#endif
+}
+
 /**
  * Compute the size of a resource.
  *
@@ -1156,10 +1195,13 @@ int fdtdec_resetup(int *rescan);
 
 /**
  * Board-specific FDT initialization. Returns the address to a device tree blob.
- * Called when CONFIG_OF_BOARD is defined, or if CONFIG_OF_SEPARATE is defined
- * and the board implements it.
+ *
+ * Called when CONFIG_OF_BOARD is defined.
+ *
+ * The existing devicetree is available at gd->fdt_blob
  *
  * @err internal error code if we fail to setup a DTB
+ * @returns new devicetree blob pointer
  */
 void *board_fdt_blob_setup(int *err);
 
@@ -1198,4 +1240,11 @@ int fdtdec_decode_ram_size(const void *blob, const char *area, int board_id,
 			   phys_addr_t *basep, phys_size_t *sizep,
 			   struct bd_info *bd);
 
+/**
+ * fdtdec_get_srcname() - Get the name of where the devicetree comes from
+ *
+ * @return source name
+ */
+const char *fdtdec_get_srcname(void);
+
 #endif