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