From: Neal Liu <neal.liu@mediatek.com>
To: Matt Mackall <mpm@selenic.com>,
Herbert Xu <herbert@gondor.apana.org.au>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
Sean Wang <sean.wang@kernel.org>
Cc: devicetree@vger.kernel.org, wsd_upstream@mediatek.com,
linux-kernel@vger.kernel.org,
Crystal Guo <Crystal.Guo@mediatek.com>,
linux-crypto@vger.kernel.org, Neal Liu <neal.liu@mediatek.com>,
linux-mediatek@lists.infradead.org,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5 0/3] MediaTek Security random number generator support
Date: Wed, 27 Nov 2019 22:22:55 +0800 [thread overview]
Message-ID: <1574864578-467-1-git-send-email-neal.liu@mediatek.com> (raw)
These patch series introduce a generic rng driver for Trustzone
based kernel driver which would like to communicate with ATF
SIP services.
Patch #1 initials SMC fid table for Mediatek SIP interfaces and
adds HWRNG related SMC call.
Patch #2..3 adds mtk-sec-rng kernel driver for Trustzone based SoCs.
For MediaTek SoCs on ARMv8 with TrustZone enabled, peripherals like
entropy sources is not accessible from normal world (linux) and
rather accessible from secure world (ATF/TEE) only.
This driver aims to provide a generic interface to ATF rng service.
changes since v1:
- rename mt67xx-rng to mtk-sec-rng since all MediaTek ARMv8 SoCs can reuse
this driver.
- refine coding style and unnecessary check.
changes since v2:
- remove unused comments.
- remove redundant variable.
changes since v3:
- add dt-bindings for MediaTek rng with TrustZone enabled.
- revise HWRNG SMC call fid.
changes since v4:
- move bindings to the arm/firmware directory.
- revise driver init flow to check more property.
Neal Liu (3):
soc: mediatek: add SMC fid table for SIP interface
dt-bindings: rng: add bindings for MediaTek ARMv8 SoCs
hwrng: add mtk-sec-rng driver
.../arm/firmware/mediatek,mtk-sec-rng.txt | 18 +++
drivers/char/hw_random/Kconfig | 16 +++
drivers/char/hw_random/Makefile | 1 +
drivers/char/hw_random/mtk-sec-rng.c | 103 ++++++++++++++++++
include/linux/soc/mediatek/mtk_sip_svc.h | 33 ++++++
5 files changed, 171 insertions(+)
create mode 100644 Documentation/devicetree/bindings/arm/firmware/mediatek,mtk-sec-rng.txt
create mode 100644 drivers/char/hw_random/mtk-sec-rng.c
create mode 100644 include/linux/soc/mediatek/mtk_sip_svc.h
--
2.18.0
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next reply other threads:[~2019-11-27 14:23 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-27 14:22 Neal Liu [this message]
2019-11-27 14:22 ` [PATCH v5 1/3] soc: mediatek: add SMC fid table for SIP interface Neal Liu
2019-11-27 14:22 ` [PATCH v5 2/3] dt-bindings: rng: add bindings for MediaTek ARMv8 SoCs Neal Liu
2019-11-27 14:22 ` [PATCH v5 3/3] hwrng: add mtk-sec-rng driver Neal Liu
2019-11-27 15:03 ` Ard Biesheuvel
2019-11-28 15:02 ` Neal Liu
2019-11-29 10:02 ` Lars Persson
2019-11-29 11:30 ` Neal Liu
2019-12-02 16:12 ` Ard Biesheuvel
2019-12-02 19:11 ` Marc Zyngier
2019-12-03 4:16 ` Florian Fainelli
2019-12-03 11:17 ` Marc Zyngier
2019-12-12 5:13 ` Neal Liu
2019-12-12 11:45 ` Marc Zyngier
2019-12-12 14:03 ` Ard Biesheuvel
2019-12-12 14:30 ` Marc Zyngier
2019-12-03 10:17 ` Will Deacon
2019-12-12 14:43 ` Sudeep Holla
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