Add a driver for the simple-bus nodes, which allows devices within these
nodes to be bound.
Signed-off-by: Simon Glass <s...@chromium.org>
---
drivers/core/Makefile | 1 +
drivers/core/simple-bus.c | 33 +++++++++++++++++++++++++++++++++
include/dm/uclass-id.h | 1 +
3 files changed, 35 insertions(+)
create mode 100644 drivers/core/simple-bus.c
diff --git a/drivers/core/Makefile b/drivers/core/Makefile
index c7905b1..151c239 100644
--- a/drivers/core/Makefile
+++ b/drivers/core/Makefile
@@ -5,3 +5,4 @@
#
obj-y := device.o lists.o root.o uclass.o util.o
+obj-$(CONFIG_OF_CONTROL) += simple-bus.o
diff --git a/drivers/core/simple-bus.c b/drivers/core/simple-bus.c
new file mode 100644
index 0000000..3ea4d82
--- /dev/null
+++ b/drivers/core/simple-bus.c
@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2014 Google, Inc
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <dm/root.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static int simple_bus_post_bind(struct udevice *dev)
+{
+ return dm_scan_fdt_node(dev, gd->fdt_blob, dev->of_offset, false);
+}
+
+UCLASS_DRIVER(simple_bus) = {
+ .id = UCLASS_SIMPLE_BUS,
+ .name = "simple_bus",
+ .post_bind = simple_bus_post_bind,
+};
+
+static const struct udevice_id generic_simple_bus_ids[] = {
+ { .compatible = "simple-bus" },
+ { }
+};
+
+U_BOOT_DRIVER(simple_bus_drv) = {
+ .name = "generic_simple_bus",
+ .id = UCLASS_SIMPLE_BUS,
+ .of_match = generic_simple_bus_ids,
+};
diff --git a/include/dm/uclass-id.h b/include/dm/uclass-id.h
index 9800777..e3e9296 100644
--- a/include/dm/uclass-id.h
+++ b/include/dm/uclass-id.h
@@ -19,6 +19,7 @@ enum uclass_id {
UCLASS_TEST_FDT,
UCLASS_TEST_BUS,
UCLASS_SPI_EMUL, /* sandbox SPI device emulator */
+ UCLASS_SIMPLE_BUS,
/* U-Boot uclasses start here */
UCLASS_GPIO, /* Bank of general-purpose I/O pins */
--
2.1.0.rc2.206.gedb03e5
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