From: Jia Jie Ho <jiajie.ho@starfivetech.com>
To: Olivia Mackall <olivia@selenic.com>,
Herbert Xu <herbert@gondor.apana.org.au>,
Rob Herring <robh+dt@kernel.org>,
"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
Emil Renner Berthing <kernel@esmil.dk>,
Conor Dooley <conor.dooley@microchip.com>
Cc: <linux-crypto@vger.kernel.org>, <devicetree@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <linux-riscv@lists.infradead.org>
Subject: [PATCH v4 0/3] hwrng: starfive: Add driver for TRNG module
Date: Thu, 12 Jan 2023 12:38:09 +0800 [thread overview]
Message-ID: <20230112043812.150393-1-jiajie.ho@starfivetech.com> (raw)
This patch series adds kernel support for StarFive hardware random
number generator. First 2 patches add binding docs and device driver for
this module. Patch 3 adds devicetree entry for VisionFive 2 SoC.
Patch 3 needs to be applied on top of:
https://patchwork.kernel.org/project/linux-riscv/patch/20221220011247.35560-7-hal.feng@starfivetech.com/
Patch 3 also depends on additional clock and reset patches for stg domain
that are yet to be submitted to mailing list.
Changes v3 -> v4:
- move init completion before IRQ registration to be prepared for
spurious interrupts. (Herbert)
- add locks to guard concurrent write to same register in Patch 2.
(Herbert)
Changes v2 -> v3:
- use constant usecs and convert to jiffies in Patch 2. (Herbert)
- remove sleep in irq handler in Patch 2. (Herbert)
- limit wait timer to 40us if wait == 0 for trng read. (Herbert)
Changes v1 -> v2:
- updated of_match_ptr and added pm_sleep_ptr in Patch 2. (by Krzysztof)
- drop "status" in dts as module is always on in Patch 3. (by Krzysztof)
Jia Jie Ho (3):
dt-bindings: rng: Add StarFive TRNG module
hwrng: starfive - Add TRNG driver for StarFive SoC
riscv: dts: starfive: Add TRNG node for VisionFive 2
.../bindings/rng/starfive,jh7110-trng.yaml | 55 +++
MAINTAINERS | 6 +
arch/riscv/boot/dts/starfive/jh7110.dtsi | 10 +
drivers/char/hw_random/Kconfig | 11 +
drivers/char/hw_random/Makefile | 1 +
drivers/char/hw_random/starfive-trng.c | 397 ++++++++++++++++++
6 files changed, 480 insertions(+)
create mode 100644 Documentation/devicetree/bindings/rng/starfive,jh7110-trng.yaml
create mode 100644 drivers/char/hw_random/starfive-trng.c
--
2.25.1
next reply other threads:[~2023-01-12 4:38 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-12 4:38 Jia Jie Ho [this message]
2023-01-12 4:38 ` [PATCH v4 1/3] dt-bindings: rng: Add StarFive TRNG module Jia Jie Ho
2023-01-12 4:38 ` [PATCH v4 2/3] hwrng: starfive - Add TRNG driver for StarFive SoC Jia Jie Ho
2023-01-12 19:16 ` Conor Dooley
2023-01-13 2:30 ` JiaJie Ho
2023-01-12 4:38 ` [PATCH v4 3/3] riscv: dts: starfive: Add TRNG node for VisionFive 2 Jia Jie Ho
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