Commit graph

7 commits

Author SHA1 Message Date
Paul Barker
07744f2ac0 bus: Optionally include TI sysc driver in SPL/TPL
The TI sysc bus driver is required to allow access to the SPI bus on
am335x platforms. To support SPI boot this driver needs to be enabled in
the SPL/TPL as appropriate.

Signed-off-by: Paul Barker <paul.barker@sancloud.com>
2022-12-02 08:39:00 -05:00
Paul Barker
e92f47c06a bus: TI sysc driver requires DM
This driver does not build if CONFIG_DM is disabled as it uses the
function `dev_get_priv`.

Signed-off-by: Paul Barker <paul.barker@sancloud.com>
2022-12-02 08:39:00 -05:00
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