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Author SHA1 Message Date
Dario Binacchi
ccc58b4d32 bus: ti-sysc: change in a normal driver
The module defines a duplicate uclass driver for UCLASS_SIMPLE_BUS, but
it is not allowed. This breaks of-platdata and makes the result
non-deterministic.

The driver does not need to be an uclass driver, so lets remove it. I
had turned it into an uclass driver because I thought wrongly it had to
call the dm_scan_fdt_dev routine to work properly, but some tests on the
board have shown otherwise.

Signed-off-by: Dario Binacchi <dariobin@libero.it>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-03-19 10:35:20 -04:00
Dario Binacchi
0f4effb05b bus: ti: am33xx: add pwm subsystem driver
The TI PWMSS driver is a simple bus driver for providing clock and power
management for the PWM peripherals on TI AM33xx SoCs, namely eCAP,
eHRPWM and eQEP.

For DT binding details see Linux doc:
- Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt

Signed-off-by: Dario Binacchi <dariobin@libero.it>
2021-01-12 10:58:05 +05:30
Dario Binacchi
92cc4e1c21 bus: ti: add minimal sysc interconnect target driver
We can handle the sysc interconnect target module in a generic way for
many TI SoCs. Initially let's just enable domain clocks before the
children are probed.

The code is loosely based on the drivers/bus/ti-sysc.c of the Linux
kernel version 5.9-rc7.
For DT binding details see:
- Documentation/devicetree/bindings/bus/ti-sysc.txt

Signed-off-by: Dario Binacchi <dariobin@libero.it>
2021-01-12 10:58:04 +05:30
Masahiro Yamada
862274913f bus: uniphier-system-bus: move hardware init from board files
Move the bus initialization code to this driver from board files.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2020-07-11 21:30:21 +09:00
Masahiro Yamada
e2bb0be2fc bus: uniphier-system-bus: add UniPhier System Bus driver
Since commit 1517126fda ("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>
2020-07-11 21:30:21 +09:00