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Message-Id: <20230904042559.2322997-1-k.son@samsung.com>
Date: Mon, 4 Sep 2023 04:25:56 +0000
From: Kwanghoon Son <k.son@...sung.com>
To: p.zabel@...gutronix.de, robh+dt@...nel.org,
krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
jszhang@...nel.org, guoren@...nel.org, wefu@...hat.com,
paul.walmsley@...ive.com, palmer@...belt.com,
aou@...s.berkeley.edu, inki.dae@...sung.com
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-riscv@...ts.infradead.org
Subject: [RFC PATCH 0/3] Introduce reset driver for T-HEAD th1520 SoC
This patchset adds initial support for reset driver.
Register information is from vendor kernel [1].
I sent an e-mail to get permission the original author,
but there was no answer. So I upload patch since it has GPL license.
This patch also can be tested with watchdog simply with
```
watchdog0: watchdog@...fc30000 {
compatible = "snps,dw-wdt";
reg = <0xff 0xefc30000 0x0 0x1000>;
interrupts = <24 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&osc>;
resets = <&rst TH1520_RESET_WDT0>;
status = "disabled";
};
```
[1] https://github.com/revyos/thead-kernel.git
Kwanghoon Son (3):
dt-bindings: reset: Document th1520 reset control
reset: Add th1520 reset driver support
riscv: dts: Add th1520 reset device tree
.../bindings/reset/thead,th1520-reset.yaml | 39 +++++++
.../dts/thead/th1520-lichee-module-4a.dtsi | 4 +
arch/riscv/boot/dts/thead/th1520.dtsi | 8 ++
drivers/reset/Kconfig | 10 ++
drivers/reset/Makefile | 1 +
drivers/reset/reset-th1520.c | 109 ++++++++++++++++++
include/dt-bindings/reset/th1520-reset.h | 9 ++
7 files changed, 180 insertions(+)
create mode 100644 Documentation/devicetree/bindings/reset/thead,th1520-reset.yaml
create mode 100644 drivers/reset/reset-th1520.c
create mode 100644 include/dt-bindings/reset/th1520-reset.h
--
2.34.1
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