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Date:   Thu, 21 May 2020 10:16:35 -0500
From:   Suman Anna <s-anna@...com>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>
CC:     Lokesh Vutla <lokeshvutla@...com>,
        <linux-remoteproc@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, Suman Anna <s-anna@...com>,
        Rob Herring <robh@...nel.org>
Subject: [PATCH v2 1/2] dt-bindings: remoteproc: k3-dsp: Update bindings for C71x DSPs

Some Texas Instruments K3 family of SoCs have one of more newer
generation TMS320C71x CorePac processor subsystem in addition to
the existing TMS320C66x CorePac processor subsystems. Update the
device tree bindings document for the C71x DSP devices.

The example is also updated to show the single C71 DSP present
on J721E SoCs.

Signed-off-by: Suman Anna <s-anna@...com>
Reviewed-by: Rob Herring <robh@...nel.org>
---
v2: 
 - Rebased patch, no changes to binding properties
 - Example additions indented one level to right as part of rebase and
   changes done in updated C66x bindings patch
 - Added Rob's Reviewed-by
v1: https://patchwork.kernel.org/patch/11458601/

 .../bindings/remoteproc/ti,k3-dsp-rproc.yaml  | 76 +++++++++++++++++--
 1 file changed, 68 insertions(+), 8 deletions(-)

diff --git a/Documentation/devicetree/bindings/remoteproc/ti,k3-dsp-rproc.yaml b/Documentation/devicetree/bindings/remoteproc/ti,k3-dsp-rproc.yaml
index cdf649655838..47642015c884 100644
--- a/Documentation/devicetree/bindings/remoteproc/ti,k3-dsp-rproc.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/ti,k3-dsp-rproc.yaml
@@ -27,9 +27,12 @@ description: |
 
 properties:
   compatible:
-    const: ti,j721e-c66-dsp
+    enum:
+      - ti,j721e-c66-dsp
+      - ti,j721e-c71-dsp
     description:
       Use "ti,j721e-c66-dsp" for C66x DSPs on K3 J721E SoCs
+      Use "ti,j721e-c71-dsp" for C71x DSPs on K3 J721E SoCs
 
   reg:
     description: |
@@ -37,18 +40,11 @@ properties:
       Each entry should have the memory region's start address
       and the size of the region, the representation matching
       the parent node's '#address-cells' and '#size-cells' values.
-    minItems: 3
-    maxItems: 3
 
   reg-names:
     description: |
       Should contain strings with the names of the specific internal
       memory regions, and should be defined in this order
-    maxItems: 3
-    items:
-      - const: l2sram
-      - const: l1pram
-      - const: l1dram
 
   ti,sci:
     $ref: /schemas/types.yaml#/definitions/phandle
@@ -121,6 +117,41 @@ properties:
       should be defined as per the generic bindings in,
       Documentation/devicetree/bindings/sram/sram.yaml
 
+if:
+  properties:
+    compatible:
+      enum:
+        - ti,j721e-c66-dsp
+then:
+  properties:
+    reg:
+      minItems: 3
+      maxItems: 3
+    reg-names:
+      minItems: 3
+      maxItems: 3
+      items:
+        - const: l2sram
+        - const: l1pram
+        - const: l1dram
+else:
+  if:
+    properties:
+      compatible:
+        enum:
+          - ti,j721e-c71-dsp
+  then:
+    properties:
+      reg:
+        minItems: 2
+        maxItems: 2
+      reg-names:
+        minItems: 2
+        maxItems: 2
+        items:
+          - const: l2sram
+          - const: l1dram
+
 required:
  - compatible
  - reg
@@ -160,6 +191,18 @@ examples:
                 reg = <0x00 0xa6100000 0x00 0xf00000>;
                 no-map;
             };
+
+            c71_0_dma_memory_region: c71-dma-memory@...00000 {
+                compatible = "shared-dma-pool";
+                reg = <0x00 0xa8000000 0x00 0x100000>;
+                no-map;
+            };
+
+            c71_0_memory_region: c71-memory@...00000 {
+                compatible = "shared-dma-pool";
+                reg = <0x00 0xa8100000 0x00 0xf00000>;
+                no-map;
+            };
         };
 
         cbass_main: bus@...000 {
@@ -167,6 +210,7 @@ examples:
             #address-cells = <2>;
             #size-cells = <2>;
             ranges = <0x00 0x00100000 0x00 0x00100000 0x00 0x00020000>, /* ctrl mmr */
+                     <0x00 0x64800000 0x00 0x64800000 0x00 0x00800000>, /* C71_0 */
                      <0x4d 0x80800000 0x4d 0x80800000 0x00 0x00800000>, /* C66_0 */
                      <0x4d 0x81800000 0x4d 0x81800000 0x00 0x00800000>; /* C66_1 */
 
@@ -186,5 +230,21 @@ examples:
                                 <&c66_0_memory_region>;
                 mboxes = <&mailbox0_cluster3 &mbox_c66_0>;
             };
+
+            /* J721E C71_0 DSP node */
+            c71_0: dsp@...00000 {
+                compatible = "ti,j721e-c71-dsp";
+                reg = <0x00 0x64800000 0x00 0x00080000>,
+                      <0x00 0x64e00000 0x00 0x0000c000>;
+                reg-names = "l2sram", "l1dram";
+                ti,sci = <&dmsc>;
+                ti,sci-dev-id = <15>;
+                ti,sci-proc-ids = <0x30 0xFF>;
+                resets = <&k3_reset 15 1>;
+                firmware-name = "j7-c71_0-fw";
+                memory-region = <&c71_0_dma_memory_region>,
+                                <&c71_0_memory_region>;
+                mboxes = <&mailbox0_cluster4 &mbox_c71_0>;
+            };
         };
     };
-- 
2.26.0

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