mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-24 21:54:01 +00:00
dm: core: Add support for simple-bus
Add a driver for the simple-bus nodes, which allows devices within these nodes to be bound. Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
parent
3f0e935f22
commit
da802b9e27
3 changed files with 35 additions and 0 deletions
|
@ -5,3 +5,4 @@
|
|||
#
|
||||
|
||||
obj-y := device.o lists.o root.o uclass.o util.o
|
||||
obj-$(CONFIG_OF_CONTROL) += simple-bus.o
|
||||
|
|
33
drivers/core/simple-bus.c
Normal file
33
drivers/core/simple-bus.c
Normal file
|
@ -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,
|
||||
};
|
|
@ -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 */
|
||||
|
|
Loading…
Reference in a new issue