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From: Benjamin Gaignard <benjamin.gaignard@st.com>
To: <robh+dt@kernel.org>, <mcoquelin.stm32@gmail.com>,
	<alexandre.torgue@st.com>, <gregkh@linuxfoundation.org>,
	<loic.pallardy@st.com>, <linus.walleij@linaro.org>
Cc: <devicetree@vger.kernel.org>,
	<linux-stm32@st-md-mailman.stormreply.com>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>,
	Benjamin Gaignard <benjamin.gaignard@st.com>
Subject: [PATCH v3 0/5] STM32 ETZPC bus controller
Date: Tue, 5 May 2020 09:33:03 +0200	[thread overview]
Message-ID: <20200505073308.22914-1-benjamin.gaignard@st.com> (raw)

STM32 Extended TrustZone Protection controller act like a firewall on the
platform bus. Depending of its configuration devices could be accessible
by the TrustZone, the co-processor or the non-secure world. ETZPC
configuration could evolve at runtime for example to switch a device from
non-secure world to co-processor.

The series introduce 'firewall' helpers to handle the new devices-tree
properties. These properties are not dedicated to ETZPC and will be reused
for STM32 next generation of bus controller.

version 3:
- add description in firewall consumer bindings
- add Linus reviewed-by tag

version 2:
- fix unit name into st,stm32-etzpc.yaml example and DT


Benjamin Gaignard (5):
  dt-bindings: bus: Add firewall bindings
  bus: stm32: Introduce firewall controller helpers
  dt-bindings: bus: Add STM32 ETZPC firewall controller
  bus: stm32: Add stm32 ETZPC firewall bus controller
  ARM: dts: stm32: Use ETZPC firewall bus

 .../bindings/bus/stm32/firewall-consumer.yaml      |  36 +++
 .../bindings/bus/stm32/firewall-provider.yaml      |  18 ++
 .../bindings/bus/stm32/st,stm32-etzpc.yaml         |  46 ++++
 arch/arm/boot/dts/stm32mp151.dtsi                  |   7 +-
 drivers/bus/Kconfig                                |   2 +
 drivers/bus/Makefile                               |   2 +
 drivers/bus/stm32/Kconfig                          |  11 +
 drivers/bus/stm32/Makefile                         |   2 +
 drivers/bus/stm32/firewall.c                       | 266 +++++++++++++++++++++
 drivers/bus/stm32/firewall.h                       |  75 ++++++
 drivers/bus/stm32/stm32-etzpc.c                    | 160 +++++++++++++
 include/dt-bindings/bus/stm32/stm32-etzpc.h        |  90 +++++++
 12 files changed, 713 insertions(+), 2 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/bus/stm32/firewall-consumer.yaml
 create mode 100644 Documentation/devicetree/bindings/bus/stm32/firewall-provider.yaml
 create mode 100644 Documentation/devicetree/bindings/bus/stm32/st,stm32-etzpc.yaml
 create mode 100644 drivers/bus/stm32/Kconfig
 create mode 100644 drivers/bus/stm32/Makefile
 create mode 100644 drivers/bus/stm32/firewall.c
 create mode 100644 drivers/bus/stm32/firewall.h
 create mode 100644 drivers/bus/stm32/stm32-etzpc.c
 create mode 100644 include/dt-bindings/bus/stm32/stm32-etzpc.h

-- 
2.15.0


             reply	other threads:[~2020-05-05  7:33 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-05  7:33 Benjamin Gaignard [this message]
2020-05-05  7:33 ` [PATCH v3 1/5] dt-bindings: bus: Add firewall bindings Benjamin Gaignard
2020-05-05  7:33 ` [PATCH v3 2/5] bus: stm32: Introduce firewall controller helpers Benjamin Gaignard
2020-05-05 14:40   ` Greg KH
2020-05-05 15:00     ` Benjamin GAIGNARD
2020-05-05 18:20       ` Greg KH
2020-05-05  7:33 ` [PATCH v3 3/5] dt-bindings: bus: Add STM32 ETZPC firewall controller Benjamin Gaignard
2020-05-05  7:33 ` [PATCH v3 4/5] bus: stm32: Add stm32 ETZPC firewall bus controller Benjamin Gaignard
2020-05-05  7:33 ` [PATCH v3 5/5] ARM: dts: stm32: Use ETZPC firewall bus Benjamin Gaignard

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