From: Bjorn Andersson <bjorn.andersson@linaro.org>
To: Ian Campbell <ijc+devicetree@hellion.org.uk>,
Mark Rutland <mark.rutland@arm.com>,
Ohad Ben-Cohen <ohad@wizery.com>, Pawel Moll <pawel.moll@arm.com>,
Rob Herring <robh+dt@kernel.org>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-msm@vger.kernel.org, linux-remoteproc@vger.kernel.org
Subject: [PATCH 2/2] dt-binding: remoteproc: Introduce Hexagon loader binding
Date: Thu, 9 Jun 2016 22:53:00 -0700 [thread overview]
Message-ID: <1465537980-13347-2-git-send-email-bjorn.andersson@linaro.org> (raw)
In-Reply-To: <1465537980-13347-1-git-send-email-bjorn.andersson@linaro.org>
This document defines the binding for a component that loads firmware
and control the life cycle of a self-authenticating Qualcomm Hexagon
core.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---
.../devicetree/bindings/remoteproc/qcom,q6v5.txt | 138 +++++++++++++++++++++
1 file changed, 138 insertions(+)
create mode 100644 Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt
diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt b/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt
new file mode 100644
index 000000000000..066ddb8d4d2a
--- /dev/null
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt
@@ -0,0 +1,138 @@
+Qualcomm Hexagon Peripheral Image Loader
+
+This document defines the binding for a component that loads and boots firmware
+on the Qualcomm Hexagon core.
+
+- compatible:
+ Usage: required
+ Value type: <string>
+ Definition: must be one of:
+ "qcom,q6v5-pil"
+
+- reg:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: must specify the base address and size of the qdsp6 and
+ rmb register blocks
+
+- reg-names:
+ Usage: required
+ Value type: <stringlist>
+ Definition: must be "q6dsp" and "rmb"
+
+- interrupts-extended:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: must list the watchdog, fatal IRQs ready, handover and
+ stop-ack IRQs
+
+- interrupt-names:
+ Usage: required
+ Value type: <stringlist>
+ Definition: must be "wdog", "fatal", "ready", "handover", "stop-ack"
+
+- clocks:
+ Usage: required
+ Value type: <phandle>
+ Definition: reference to the iface, bus and mem clocks to be held on
+ behalf of the booting of the Hexagon core
+
+- clock-names:
+ Usage: required
+ Value type: <stringlist>
+ Definition: must be "iface", "bus", "mem"
+
+- resets:
+ Usage: required
+ Value type: <phandle>
+ Definition: reference to the reset-controller for the modem sub-system
+
+- reset-names:
+ Usage: required
+ Value type: <stringlist>
+ Definition: must be "mss_restart"
+
+- cx-supply:
+- mss-supply:
+- mx-supply:
+- pll-supply:
+ Usage: required
+ Value type: <phandle>
+ Definition: reference to the regulators to be held on behalf of the
+ booting of the Hexagon core
+
+- qcom,smem-states:
+ Usage: required
+ Value type: <phandle>
+ Definition: reference to the smem state for requesting the Hexagon to
+ shut down
+
+- qcom,smem-state-names:
+ Usage: required
+ Value type: <stringlist>
+ Definition: must be "stop"
+
+- qcom,halt-regs:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: a phandle reference to a syscon representing TCSR followed
+ by the three offsets within syscon for q6, modem and nc
+ halt registers.
+
+= SUBNODES:
+The Hexagon node must contain two subnodes, named "mba" and "mpss" representing
+the memory regions used by the Hexagon firmware. Each sub-node must contain:
+
+- memory-region:
+ Usage: required
+ Value type: <phandle>
+ Definition: reference to the reserved-memory for the region
+
+= EXAMPLE
+The following example describes the resources needed to boot control the
+Hexagon, as it is found on MSM8974 boards.
+
+ modem-rproc@fc880000 {
+ compatible = "qcom,q6v5-pil";
+ reg = <0xfc880000 0x100>,
+ <0xfc820000 0x020>;
+ reg-names = "qdsp6_base", "rmb_base";
+
+ interrupts-extended = <&intc 0 24 1>,
+ <&modem_smp2p_in 0 0>,
+ <&modem_smp2p_in 1 0>,
+ <&modem_smp2p_in 2 0>,
+ <&modem_smp2p_in 3 0>;
+ interrupt-names = "wdog",
+ "fatal",
+ "ready",
+ "handover",
+ "stop-ack";
+
+ clocks = <&gcc GCC_MSS_Q6_BIMC_AXI_CLK>,
+ <&gcc GCC_MSS_CFG_AHB_CLK>,
+ <&gcc GCC_BOOT_ROM_AHB_CLK>;
+ clock-names = "iface", "bus", "mem";
+
+ qcom,halt-regs = <&tcsr_mutex_block 0x1180 0x1200 0x1280>;
+
+ resets = <&gcc GCC_MSS_RESTART>;
+ reset-names = "mss_restart";
+
+ cx-supply = <&pm8841_s2>;
+ mss-supply = <&pm8841_s3>;
+ mx-supply = <&pm8841_s1>;
+ pll-supply = <&pm8941_l12>;
+
+ qcom,smem-states = <&modem_smp2p_out 0>;
+ qcom,smem-state-names = "stop";
+
+ mba {
+ memory-region = <&mba_region>;
+ };
+
+ mpss {
+ memory-region = <&mpss_region>;
+ };
+ };
+
--
2.5.0
next prev parent reply other threads:[~2016-06-10 5:53 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-10 5:52 [PATCH 1/2] remoteproc: qcom: Driver for the self-authenticating Hexagon v5 Bjorn Andersson
2016-06-10 5:53 ` Bjorn Andersson [this message]
2016-06-10 18:03 ` [PATCH 2/2] dt-binding: remoteproc: Introduce Hexagon loader binding Rob Herring
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