diff options
| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2020-07-09 15:08:18 +0900 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2020-07-11 21:30:21 +0900 |
| commit | e2bb0be2fc2276d33646545de342196de8c4040e (patch) | |
| tree | defb7264559b8a9b7bdb1308621fa8da91f14edd /drivers/bus | |
| parent | d69d49d3ecfff6a4ae9a614a6cfb004257e1b1af (diff) | |
bus: uniphier-system-bus: add UniPhier System Bus driver
Since commit 1517126fdac2 ("ARM: uniphier: select DM_ETH"), DM-based
drivers/net/smc911x.c is compiled, but it is never probed because the
parent node lacks the DM-based driver.
I need a skeleton driver to populate child devices (but the next commit
will move more hardware settings to the this driver).
I put this to drivers/bus/uniphier-system-bus.c because this is the
same path as the driver in Linux kernel.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'drivers/bus')
| -rw-r--r-- | drivers/bus/Kconfig | 16 | ||||
| -rw-r--r-- | drivers/bus/Makefile | 6 | ||||
| -rw-r--r-- | drivers/bus/uniphier-system-bus.c | 14 |
3 files changed, 36 insertions, 0 deletions
diff --git a/drivers/bus/Kconfig b/drivers/bus/Kconfig new file mode 100644 index 0000000000..07a33c6287 --- /dev/null +++ b/drivers/bus/Kconfig @@ -0,0 +1,16 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Bus Devices +# + +menu "Bus devices" + +config UNIPHIER_SYSTEM_BUS + bool "UniPhier System Bus driver" + depends on ARCH_UNIPHIER + default y + help + Support for UniPhier System Bus, a simple external bus. This is + needed to use on-board devices connected to UniPhier SoCs. + +endmenu diff --git a/drivers/bus/Makefile b/drivers/bus/Makefile new file mode 100644 index 0000000000..0b97fc1f8b --- /dev/null +++ b/drivers/bus/Makefile @@ -0,0 +1,6 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for the bus drivers. +# + +obj-$(CONFIG_UNIPHIER_SYSTEM_BUS) += uniphier-system-bus.o diff --git a/drivers/bus/uniphier-system-bus.c b/drivers/bus/uniphier-system-bus.c new file mode 100644 index 0000000000..c61d795bac --- /dev/null +++ b/drivers/bus/uniphier-system-bus.c @@ -0,0 +1,14 @@ +// SPDX-License-Identifier: GPL-2.0-or-later + +#include <dm.h> + +static const struct udevice_id uniphier_system_bus_match[] = { + { .compatible = "socionext,uniphier-system-bus" }, + { /* sentinel */ } +}; + +U_BOOT_DRIVER(uniphier_system_bus_driver) = { + .name = "uniphier-system-bus", + .id = UCLASS_SIMPLE_BUS, + .of_match = uniphier_system_bus_match, +}; |