Resguardo inicial

linux-7.2.3/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra-ccplex-cluster.yaml

@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/tegra/nvidia,tegra-ccplex-cluster.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra CPU COMPLEX CLUSTER area
+
+maintainers:
+  - Sumit Gupta <sumitg@nvidia.com>
+  - Mikko Perttunen <mperttunen@nvidia.com>
+  - Jon Hunter <jonathanh@nvidia.com>
+  - Thierry Reding <thierry.reding@gmail.com>
+
+description: |+
+  The Tegra CPU COMPLEX CLUSTER area contains memory-mapped
+  registers that initiate CPU frequency/voltage transitions.
+
+properties:
+  $nodename:
+    pattern: "ccplex@([0-9a-f]+)$"
+
+  compatible:
+    enum:
+      - nvidia,tegra186-ccplex-cluster
+      - nvidia,tegra234-ccplex-cluster
+      - nvidia,tegra238-ccplex-cluster
+
+  reg:
+    maxItems: 1
+
+  nvidia,bpmp:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description: |
+      Specifies the BPMP node that needs to be queried to get
+      operating point data for all CPUs.
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - nvidia,bpmp
+
+examples:
+  - |
+    ccplex@e000000 {
+      compatible = "nvidia,tegra234-ccplex-cluster";
+      reg = <0x0e000000 0x5ffff>;
+      nvidia,bpmp = <&bpmp>;
+    };

linux-7.2.3/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.yaml

@@ -0,0 +1,222 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/tegra/nvidia,tegra186-pmc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra Power Management Controller (PMC)
+
+maintainers:
+  - Thierry Reding <thierry.reding@gmail.com>
+  - Jon Hunter <jonathanh@nvidia.com>
+
+properties:
+  compatible:
+    enum:
+      - nvidia,tegra186-pmc
+      - nvidia,tegra194-pmc
+      - nvidia,tegra234-pmc
+      - nvidia,tegra238-pmc
+      - nvidia,tegra264-pmc
+
+  reg:
+    minItems: 3
+    maxItems: 5
+
+  reg-names:
+    minItems: 3
+    items:
+      - const: pmc
+      - const: wake
+      - enum: [ aotag, scratch, misc ]
+      - enum: [ scratch, misc ]
+      - const: misc
+
+  interrupt-controller: true
+
+  "#interrupt-cells":
+    description: Specifies the number of cells needed to encode an
+      interrupt source. The value must be 2.
+    const: 2
+
+  nvidia,invert-interrupt:
+    description: If present, inverts the PMU interrupt signal.
+    $ref: /schemas/types.yaml#/definitions/flag
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: nvidia,tegra186-pmc
+    then:
+      properties:
+        reg:
+          minItems: 4
+          maxItems: 4
+        reg-names:
+          maxItems: 4
+          contains:
+            const: scratch
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: nvidia,tegra194-pmc
+    then:
+      properties:
+        reg:
+          minItems: 5
+        reg-names:
+          minItems: 5
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - nvidia,tegra234-pmc
+              - nvidia,tegra238-pmc
+              - nvidia,tegra264-pmc
+    then:
+      properties:
+        reg-names:
+          contains:
+            const: misc
+
+patternProperties:
+  "^[a-z0-9]+-[a-z0-9]+$":
+    if:
+      type: object
+    then:
+      description: |
+        These are pad configuration nodes. On Tegra SoCs a pad is a set of
+        pins which are configured as a group. The pin grouping is a fixed
+        attribute of the hardware. The PMC can be used to set pad power
+        state and signaling voltage. A pad can be either in active or
+        power down mode. The support for power state and signaling voltage
+        configuration varies depending on the pad in question. 3.3 V and
+        1.8 V signaling voltages are supported on pins where software
+        controllable signaling voltage switching is available.
+
+        Pad configurations are described with pin configuration nodes
+        which are placed under the pmc node and they are referred to by
+        the pinctrl client properties. For more information see
+
+          Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
+
+        The following pads are present on Tegra186:
+
+          csia, csib, dsi, mipi-bias, pex-clk-bias, pex-clk3, pex-clk2,
+          pex-clk1, usb0, usb1, usb2, usb-bias, uart, audio, hsic, dbg,
+          hdmi-dp0, hdmi-dp1, pex-cntrl, sdmmc2-hv, sdmmc4, cam, dsib,
+          dsic, dsid, csic, csid, csie, dsif, spi, ufs, dmic-hv, edp,
+          sdmmc1-hv, sdmmc3-hv, conn, audio-hv, ao-hv
+
+        The following pads are present on Tegra194:
+
+          csia, csib, mipi-bias, pex-clk-bias, pex-clk3, pex-clk2,
+          pex-clk1, eqos, pex-clk-2-bias, pex-clk-2, dap3, dap5, uart,
+          pwr-ctl, soc-gpio53, audio, gp-pwm2, gp-pwm3, soc-gpio12,
+          soc-gpio13, soc-gpio10, uart4, uart5, dbg, hdmi-dp3, hdmi-dp2,
+          hdmi-dp0, hdmi-dp1, pex-cntrl, pex-ctl2, pex-l0-rst,
+          pex-l1-rst, sdmmc4, pex-l5-rst, cam, csic, csid, csie, csif,
+          spi, ufs, csig, csih, edp, sdmmc1-hv, sdmmc3-hv, conn,
+          audio-hv, ao-hv
+
+      properties:
+        pins:
+          $ref: /schemas/types.yaml#/definitions/string
+          description: Must contain the name of the pad(s) to be
+            configured.
+
+        low-power-enable:
+          description: Configure the pad into power down mode.
+          $ref: /schemas/types.yaml#/definitions/flag
+
+        low-power-disable:
+          description: Configure the pad into active mode.
+          $ref: /schemas/types.yaml#/definitions/flag
+
+        power-source:
+          $ref: /schemas/types.yaml#/definitions/uint32
+          description: |
+            Must contain either TEGRA_IO_PAD_VOLTAGE_1V8 or
+            TEGRA_IO_PAD_VOLTAGE_3V3 to select between signalling
+            voltages.
+
+            The values are defined in
+
+              include/dt-bindings/pinctrl/pinctrl-tegra-io-pad.h
+
+            The power state can be configured on all of the above pads
+            except for ao-hv. Following pads have software configurable
+            signaling voltages: sdmmc2-hv, dmic-hv, sdmmc1-hv, sdmmc3-hv,
+            audio-hv, ao-hv.
+
+        phandle: true
+
+      required:
+        - pins
+
+      additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - reg-names
+
+additionalProperties: false
+
+dependencies:
+  interrupt-controller: ['#interrupt-cells']
+  "#interrupt-cells":
+    required:
+      - interrupt-controller
+
+examples:
+  - |
+    #include <dt-bindings/clock/tegra186-clock.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/pinctrl/pinctrl-tegra-io-pad.h>
+    #include <dt-bindings/memory/tegra186-mc.h>
+    #include <dt-bindings/reset/tegra186-reset.h>
+
+    pmc@c3600000 {
+        compatible = "nvidia,tegra186-pmc";
+        reg = <0x0c360000 0x10000>,
+              <0x0c370000 0x10000>,
+              <0x0c380000 0x10000>,
+              <0x0c390000 0x10000>;
+        reg-names = "pmc", "wake", "aotag", "scratch";
+        nvidia,invert-interrupt;
+
+        sdmmc1_3v3: sdmmc1-3v3 {
+            pins = "sdmmc1-hv";
+            power-source = <TEGRA_IO_PAD_VOLTAGE_3V3>;
+        };
+
+        sdmmc1_1v8: sdmmc1-1v8 {
+            pins = "sdmmc1-hv";
+            power-source = <TEGRA_IO_PAD_VOLTAGE_1V8>;
+        };
+    };
+
+    sdmmc1: mmc@3400000 {
+        compatible = "nvidia,tegra186-sdhci";
+        reg = <0x03400000 0x10000>;
+        interrupts = <GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&bpmp TEGRA186_CLK_SDMMC1>,
+                 <&bpmp TEGRA186_CLK_SDMMC_LEGACY_TM>;
+        clock-names = "sdhci", "tmclk";
+        resets = <&bpmp TEGRA186_RESET_SDMMC1>;
+        reset-names = "sdhci";
+        interconnects = <&mc TEGRA186_MEMORY_CLIENT_SDMMCRA &emc>,
+                        <&mc TEGRA186_MEMORY_CLIENT_SDMMCWA &emc>;
+        interconnect-names = "dma-mem", "write";
+        iommus = <&smmu TEGRA186_SID_SDMMC1>;
+        pinctrl-names = "sdmmc-3v3", "sdmmc-1v8";
+        pinctrl-0 = <&sdmmc1_3v3>;
+        pinctrl-1 = <&sdmmc1_1v8>;
+    };

linux-7.2.3/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra194-axi2apb.yaml

@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/tegra/nvidia,tegra194-axi2apb.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra194 AXI2APB bridge
+
+maintainers:
+  - Sumit Gupta <sumitg@nvidia.com>
+
+properties:
+  $nodename:
+    pattern: "^axi2apb@([0-9a-f]+)$"
+
+  compatible:
+    enum:
+      - nvidia,tegra194-axi2apb
+
+  reg:
+    maxItems: 6
+    description: Physical base address and length of registers for all bridges
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+
+examples:
+  - |
+    axi2apb: axi2apb@2390000 {
+      compatible = "nvidia,tegra194-axi2apb";
+      reg = <0x02390000 0x1000>,
+            <0x023a0000 0x1000>,
+            <0x023b0000 0x1000>,
+            <0x023c0000 0x1000>,
+            <0x023d0000 0x1000>,
+            <0x023e0000 0x1000>;
+    };

linux-7.2.3/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra194-cbb.yaml

@@ -0,0 +1,97 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/tegra/nvidia,tegra194-cbb.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra194 CBB 1.0
+
+maintainers:
+  - Sumit Gupta <sumitg@nvidia.com>
+
+description: |+
+  The Control Backbone (CBB) is comprised of the physical path from an
+  initiator to a target's register configuration space. CBB 1.0 has
+  multiple hierarchical sub-NOCs (Network-on-Chip) and connects various
+  initiators and targets using different bridges like AXIP2P, AXI2APB.
+
+  This driver handles errors due to illegal register accesses reported
+  by the NOCs inside the CBB. NOCs reporting errors are cluster NOCs
+  "AON-NOC, SCE-NOC, RCE-NOC, BPMP-NOC, CV-NOC" and "CBB Central NOC"
+  which is the main NOC.
+
+  By default, the access issuing initiator is informed about the error
+  using SError or Data Abort exception unless the ERD (Error Response
+  Disable) is enabled/set for that initiator. If the ERD is enabled, then
+  SError or Data Abort is masked and the error is reported with interrupt.
+
+  - For CCPLEX (CPU Complex) initiator, the driver sets ERD bit. So, the
+    errors due to illegal accesses from CCPLEX are reported by interrupts.
+    If ERD is not set, then error is reported by SError.
+  - For other initiators, the ERD is disabled. So, the access issuing
+    initiator is informed about the illegal access by Data Abort exception.
+    In addition, an interrupt is also generated to CCPLEX. These initiators
+    include all engines using Cortex-R5 (which is ARMv7 CPU cluster) and
+    engines like TSEC (Security co-processor), NVDEC (NVIDIA Video Decoder
+    engine) etc which can initiate transactions.
+
+  The driver prints relevant debug information like Error Code, Error
+  Description, Master, Address, AXI ID, Cache, Protection, Security Group
+  etc on receiving error notification.
+
+properties:
+  $nodename:
+    pattern: "^[a-z]+-noc@[0-9a-f]+$"
+
+  compatible:
+    enum:
+      - nvidia,tegra194-cbb-noc
+      - nvidia,tegra194-aon-noc
+      - nvidia,tegra194-bpmp-noc
+      - nvidia,tegra194-rce-noc
+      - nvidia,tegra194-sce-noc
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    description:
+      CCPLEX receives secure or nonsecure interrupt depending on error type.
+      A secure interrupt is received for SEC(firewall) & SLV errors and a
+      non-secure interrupt is received for TMO & DEC errors.
+    items:
+      - description: non-secure interrupt
+      - description: secure interrupt
+
+  nvidia,axi2apb:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      Specifies the node having all axi2apb bridges which need to be checked
+      for any error logged in their status register.
+
+  nvidia,apbmisc:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      Specifies the apbmisc node which need to be used for reading the ERD
+      register.
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - nvidia,apbmisc
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    cbb-noc@2300000 {
+        compatible = "nvidia,tegra194-cbb-noc";
+        reg = <0x02300000 0x1000>;
+        interrupts = <GIC_SPI 230 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 231 IRQ_TYPE_LEVEL_HIGH>;
+        nvidia,axi2apb = <&axi2apb>;
+        nvidia,apbmisc = <&apbmisc>;
+    };

linux-7.2.3/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra234-cbb.yaml

@@ -0,0 +1,78 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/tegra/nvidia,tegra234-cbb.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra CBB 2.0
+
+maintainers:
+  - Sumit Gupta <sumitg@nvidia.com>
+
+description: |+
+  The Control Backbone (CBB) is comprised of the physical path from an
+  initiator to a target's register configuration space. CBB 2.0 consists
+  of multiple sub-blocks connected to each other to create a topology.
+  The Tegra234 SoC has different fabrics based on CBB 2.0 architecture
+  which include cluster fabrics BPMP, AON, PSC, SCE, RCE, DCE, FSI and
+  "CBB central fabric".
+
+  In CBB 2.0, each initiator which can issue transactions connects to a
+  Root Master Node (MN) before it connects to any other element of the
+  fabric. Each Root MN contains a Error Monitor (EM) which detects and
+  logs error. Interrupts from various EM blocks are collated by Error
+  Notifier (EN) which is per fabric and presents a single interrupt from
+  fabric to the SoC interrupt controller.
+
+  The driver handles errors from CBB due to illegal register accesses
+  and prints debug information about failed transaction on receiving
+  the interrupt from EN. Debug information includes Error Code, Error
+  Description, MasterID, Fabric, SlaveID, Address, Cache, Protection,
+  Security Group etc on receiving error notification.
+
+  If the Error Response Disable (ERD) is set/enabled for an initiator,
+  then SError or Data abort exception error response is masked and an
+  interrupt is used for reporting errors due to illegal accesses from
+  that initiator. The value returned on read failures is '0xFFFFFFFF'
+  for compatibility with PCIE.
+
+properties:
+  $nodename:
+    pattern: "^[a-z]+-fabric@[0-9a-f]+$"
+
+  compatible:
+    enum:
+      - nvidia,tegra234-aon-fabric
+      - nvidia,tegra234-bpmp-fabric
+      - nvidia,tegra234-cbb-fabric
+      - nvidia,tegra234-dce-fabric
+      - nvidia,tegra234-rce-fabric
+      - nvidia,tegra234-sce-fabric
+      - nvidia,tegra238-ape-fabric
+      - nvidia,tegra238-aon-fabric
+      - nvidia,tegra238-bpmp-fabric
+      - nvidia,tegra238-cbb-fabric
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    items:
+      - description: secure interrupt from error notifier
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    cbb-fabric@1300000 {
+      compatible = "nvidia,tegra234-cbb-fabric";
+      reg = <0x13a00000 0x400000>;
+      interrupts = <GIC_SPI 231 IRQ_TYPE_LEVEL_HIGH>;
+    };