From: Fabien Dessenne <fabien.dessenne@st.com>
To: Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
Alexandre Torgue <alexandre.torgue@st.com>,
Ohad Ben-Cohen <ohad@wizery.com>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
<devicetree@vger.kernel.org>,
<linux-stm32@st-md-mailman.stormreply.com>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>,
<linux-remoteproc@vger.kernel.org>
Cc: Fabien Dessenne <fabien.dessenne@st.com>,
Loic Pallardy <loic.pallardy@st.com>,
Arnaud Pouliquen <arnaud.pouliquen@st.com>,
"Ludovic Barre" <ludovic.barre@st.com>,
Benjamin Gaignard <benjamin.gaignard@st.com>
Subject: [PATCH 1/8] dt-bindings: stm32: add bindings for ML-AHB interconnect
Date: Tue, 5 Mar 2019 15:24:02 +0100 [thread overview]
Message-ID: <1551795849-13672-2-git-send-email-fabien.dessenne@st.com> (raw)
In-Reply-To: <1551795849-13672-1-git-send-email-fabien.dessenne@st.com>
Document the ML-AHB interconnect for stm32 SoCs.
Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
---
.../devicetree/bindings/arm/stm32/mlahb.txt | 30 ++++++++++++++++++++++
1 file changed, 30 insertions(+)
create mode 100644 Documentation/devicetree/bindings/arm/stm32/mlahb.txt
diff --git a/Documentation/devicetree/bindings/arm/stm32/mlahb.txt b/Documentation/devicetree/bindings/arm/stm32/mlahb.txt
new file mode 100644
index 0000000..880cb38
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/stm32/mlahb.txt
@@ -0,0 +1,30 @@
+ML-AHB interconnect bindings
+
+These bindings describe the STM32 SoCs ML-AHB interconnect bus which connects
+a Cortex-M subsystem with dedicated memories.
+
+Required properties:
+- compatible: should be "simple-bus"
+- ranges: describes memory addresses translation between the local CPU and the
+ remote Cortex-M processor. Each memory region, is declared with 3
+ parameters:
+ - param 1: device base address (Cortex-M processor address)
+ - param 2: physical base address (local CPU address)
+ - param 3: size of the memory region.
+
+The Cortex-M remote processor accessed via the mlahb interconnect is described
+by a child node.
+
+Example:
+mlahb: mlahb@0 {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x00000000 0x38000000 0x10000>,
+ <0x10000000 0x10000000 0x60000>,
+ <0x30000000 0x30000000 0x60000>;
+
+ m4_rproc: m4@0 {
+ ...
+ };
+};
--
2.7.4
next prev parent reply other threads:[~2019-03-05 14:25 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-05 14:24 [PATCH 0/8] stm32 m4 remoteproc on STM32MP157c Fabien Dessenne
2019-03-05 14:24 ` Fabien Dessenne [this message]
2019-03-27 23:07 ` [PATCH 1/8] dt-bindings: stm32: add bindings for ML-AHB interconnect Rob Herring
2019-03-29 15:59 ` Fabien DESSENNE
2019-04-04 1:29 ` Rob Herring
2019-03-05 14:24 ` [PATCH 2/8] dt-bindings: remoteproc: add bindings for stm32 remote processor driver Fabien Dessenne
2019-03-27 23:23 ` Rob Herring
2019-03-05 14:24 ` [PATCH 3/8] remoteproc: stm32: add an ST stm32_rproc driver Fabien Dessenne
2019-03-05 14:24 ` [PATCH 4/8] ARM: dts: stm32: add m4 remoteproc support on STM32MP157c Fabien Dessenne
2019-03-05 14:24 ` [PATCH 5/8] ARM: dts: stm32: declare copro reserved memories on STM32MP157c-ed1 Fabien Dessenne
2019-03-05 14:24 ` [PATCH 6/8] ARM: dts: stm32: enable m4 coprocessor support " Fabien Dessenne
2019-03-05 14:24 ` [PATCH 7/8] ARM: dts: stm32: declare copro reserved memories on STM32MP157a-dk1 Fabien Dessenne
2019-03-05 14:24 ` [PATCH 8/8] ARM: dts: stm32: enable m4 coprocessor support " Fabien Dessenne
2019-03-26 10:37 ` [PATCH 0/8] stm32 m4 remoteproc on STM32MP157c Alexandre Torgue
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