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From:   Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com>
To:     <linux-remoteproc@vger.kernel.org>, <agross@kernel.org>,
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CC:     Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com>
Subject: [PATCH v8 1/7] dt-bindings: remoteproc: qcom: Add SC7280 ADSP support
Date:   Fri, 23 Sep 2022 18:35:34 +0530
Message-ID: <1663938340-24345-2-git-send-email-quic_srivasam@quicinc.com>
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Add ADSP PIL loading support for SC7280 SoCs.

Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
---
Changes since V7:
	-- Remove redundant clocks in dt bindings.
	-- Fix dt compilation error in dt bindings.
Changes since V6:
	-- Update glink-edge property.
	-- Add qcom,qmp property.
Changes since V5:
	-- Remove qcom,adsp-memory-regions property.
Changes since V4:
	-- Update halt registers description in dt bindings.

 .../bindings/remoteproc/qcom,sc7280-adsp-pil.yaml  | 207 +++++++++++++++++++++
 1 file changed, 207 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/remoteproc/qcom,sc7280-adsp-pil.yaml

diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,sc7280-adsp-pil.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,sc7280-adsp-pil.yaml
new file mode 100644
index 0000000..79ef3c0
--- /dev/null
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,sc7280-adsp-pil.yaml
@@ -0,0 +1,207 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/remoteproc/qcom,sc7280-adsp-pil.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SC7280 ADSP Peripheral Image Loader
+
+maintainers:
+  - Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com>
+
+description:
+  This document describes the hardware for a component that loads and boots firmware
+  on the Qualcomm Technology Inc. ADSP.
+
+properties:
+  compatible:
+    enum:
+      - qcom,sc7280-adsp-pil
+
+  reg:
+    minItems: 1
+    items:
+      - description: qdsp6ss register
+      - description: efuse q6ss register
+
+  interrupts:
+    items:
+      - description: Watchdog interrupt
+      - description: Fatal interrupt
+      - description: Ready interrupt
+      - description: Handover interrupt
+      - description: Stop acknowledge interrupt
+      - description: Shutdown acknowledge interrupt
+
+  interrupt-names:
+    items:
+      - const: wdog
+      - const: fatal
+      - const: ready
+      - const: handover
+      - const: stop-ack
+      - const: shutdown-ack
+
+  clocks:
+    items:
+      - description: XO clock
+      - description: GCC CFG NOC LPASS clock
+
+  clock-names:
+    items:
+      - const: xo
+      - const: gcc_cfg_noc_lpass
+
+  power-domains:
+    items:
+      - description: LCX power domain
+
+  resets:
+    items:
+      - description: PDC AUDIO SYNC RESET
+      - description: CC LPASS restart
+
+  reset-names:
+    items:
+      - const: pdc_sync
+      - const: cc_lpass
+
+  memory-region:
+    maxItems: 1
+    description: Reference to the reserved-memory for the Hexagon core
+
+  qcom,halt-regs:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    description:
+      Phandle reference to a syscon representing TCSR followed by the
+      four offsets within syscon for q6, CE, AXI and qv6 halt registers.
+    items:
+      items:
+        - description: phandle to TCSR MUTEX
+        - description: offset to q6 halt registers
+        - description: offset to CE halt registers
+        - description: offset to AXI halt registers
+        - description: offset to qv6 halt registers
+
+  qcom,smem-states:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    description: States used by the AP to signal the Hexagon core
+    items:
+      - description: Stop the modem
+
+  qcom,smem-state-names:
+    description: The names of the state bits used for SMP2P output
+    const: stop
+
+  qcom,qmp:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description: Reference to the AOSS side-channel message RAM.
+
+  glink-edge:
+    type: object
+    description: |
+      Qualcomm G-Link subnode which represents communication edge, channels
+      and devices related to the ADSP.
+
+    properties:
+      interrupts:
+        items:
+          - description: IRQ from ADSP to GLINK
+
+      mboxes:
+        items:
+          - description: Mailbox for communication between APPS and ADSP
+
+      label:
+        description: The names of the state bits used for SMP2P output
+        items:
+          - const: lpass
+
+      qcom,remote-pid:
+        $ref: /schemas/types.yaml#/definitions/uint32
+        description: ID of the shared memory used by GLINK for communication with ADSP
+
+      gpr: true
+      apr: false
+      fastrpc: false
+
+    required:
+      - interrupts
+      - mboxes
+      - label
+      - qcom,remote-pid
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - interrupt-names
+  - clocks
+  - clock-names
+  - power-domains
+  - resets
+  - reset-names
+  - qcom,halt-regs
+  - memory-region
+  - qcom,smem-states
+  - qcom,smem-state-names
+  - qcom,qmp
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/qcom,rpmh.h>
+    #include <dt-bindings/clock/qcom,gcc-sc7280.h>
+    #include <dt-bindings/clock/qcom,lpass-sc7280.h>
+    #include <dt-bindings/reset/qcom,sdm845-aoss.h>
+    #include <dt-bindings/reset/qcom,sdm845-pdc.h>
+    #include <dt-bindings/power/qcom-rpmpd.h>
+    #include <dt-bindings/mailbox/qcom-ipcc.h>
+
+    remoteproc@3000000 {
+        compatible = "qcom,sc7280-adsp-pil";
+        reg = <0x03000000 0x5000>,
+              <0x0355b000 0x10>;
+
+        interrupts-extended = <&pdc 162 IRQ_TYPE_EDGE_RISING>,
+                <&adsp_smp2p_in 0 IRQ_TYPE_EDGE_RISING>,
+                <&adsp_smp2p_in 1 IRQ_TYPE_EDGE_RISING>,
+                <&adsp_smp2p_in 2 IRQ_TYPE_EDGE_RISING>,
+                <&adsp_smp2p_in 3 IRQ_TYPE_EDGE_RISING>,
+                <&adsp_smp2p_in 7 IRQ_TYPE_EDGE_RISING>;
+
+        interrupt-names = "wdog", "fatal", "ready",
+                "handover", "stop-ack", "shutdown-ack";
+
+        clocks = <&rpmhcc RPMH_CXO_CLK>,
+                 <&gcc GCC_CFG_NOC_LPASS_CLK>;
+        clock-names = "xo", "gcc_cfg_noc_lpass";
+
+        power-domains = <&rpmhpd SC7280_LCX>;
+
+        resets = <&pdc_reset PDC_AUDIO_SYNC_RESET>,
+                 <&aoss_reset AOSS_CC_LPASS_RESTART>;
+        reset-names = "pdc_sync", "cc_lpass";
+
+        qcom,halt-regs = <&tcsr_mutex 0x23000 0x25000 0x28000 0x33000>;
+
+        memory-region = <&adsp_mem>;
+
+        qcom,smem-states = <&adsp_smp2p_out 0>;
+        qcom,smem-state-names = "stop";
+
+        qcom,qmp = <&aoss_qmp>;
+
+        glink-edge {
+            interrupts-extended = <&ipcc IPCC_CLIENT_LPASS
+                                         IPCC_MPROC_SIGNAL_GLINK_QMP
+                                         IRQ_TYPE_EDGE_RISING>;
+            mboxes = <&ipcc IPCC_CLIENT_LPASS
+                            IPCC_MPROC_SIGNAL_GLINK_QMP>;
+
+            label = "lpass";
+            qcom,remote-pid = <2>;
+        };
+    };
-- 
2.7.4