Add driver support for ESWIN eic7700 SoC reset controller

From: Xuyang Dong <[email protected]>

Add support for the reset functionality in the Linux kernel. The driver provides basic functionality to manage and control the reset signals for the eic7700 series chips, which are part of the Eswin SoC family.

The driver integrates with the Linux reset subsystem, allowing kernel code to trigger resets on the hardware and ensuring proper handling of reset events.

Features:

Implement support for the ESWIN eic7700 SoC reset controller. Provide API to manage reset signals for the eic7700 series SoC. Integrate with the Linux reset subsystem for consistency and scalability.

Supported chips:
ESWIN eic7700 series SoC.

Test:
The tests tested on the Sifive HiFive Premier P550 (which uses the EIC7700 SoC), including system boot, networking, EMMC, display, and other peripherals. The drivers of these modules all use the reset module,
so the verifies that this clock driver patch is working properly.

Xuyang Dong (2):
dt-bindings: reset: eswin: Documentation for eic7700 SoC
reset: eswin: Add eic7700 reset driver

 .../bindings/reset/eswin,eic7700-reset.yaml   |  57 +++
 drivers/reset/Kconfig                         |   9 +
 drivers/reset/Makefile                        |   1 +
 drivers/reset/reset-eic7700.c                 | 249 ++++++++++
 .../dt-bindings/reset/eswin,eic7700-reset.h   | 460 ++++++++++++++++++
 5 files changed, 776 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/reset/eswin,eic7700-reset.yaml
 create mode 100644 drivers/reset/reset-eic7700.c
 create mode 100644 include/dt-bindings/reset/eswin,eic7700-reset.h

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2.17.1