Merge tag 'riscv-cache-for-v6.16' of https://git.kernel.org/pub/scm/linux/kernel/git/conor/linux into soc/drivers

RISC-V cache drivers for v6.16

SiFive:
Add support for the Eswin EIC7700 SoC, which needs to make sure of the
non-standard cache-ops provided by the ccache driver.

Bindings:
Conversions for two Marvell bindings to yaml, and additions of two
soc-specific compatibles to the axm45mp bindings.

Signed-off-by: Conor Dooley <[email protected]>

* tag 'riscv-cache-for-v6.16' of https://git.kernel.org/pub/scm/linux/kernel/git/conor/linux:
  dt-bindings: cache: add QiLai compatible to ax45mp
  dt-bindings: cache: Convert marvell,tauros2-cache to DT schema
  dt-bindings: cache: Convert marvell,{feroceon,kirkwood}-cache to DT schema
  dt-bindings: cache: add specific RZ/Five compatible to ax45mp
  cache: sifive_ccache: Add ESWIN EIC7700 support
  dt-bindings: cache: sifive,ccache0: Add ESWIN EIC7700 SoC compatibility

Link: https://lore.kernel.org/r/20250516-liability-facility-667fc14a2a85@spud
Signed-off-by: Arnd Bergmann <[email protected]>

Author: arndb

Documentation/devicetree/bindings/cache/andestech,ax45mp-cache.yaml

@@ -28,6 +28,9 @@ select:
 properties:
   compatible:
     items:
+      - enum:
+          - andestech,qilai-ax45mp-cache
+          - renesas,r9a07g043f-ax45mp-cache
       - const: andestech,ax45mp-cache
       - const: cache
 
@@ -65,12 +68,27 @@ required:
   - cache-size
   - cache-unified
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: andestech,qilai-ax45mp-cache
+
+    then:
+      properties:
+        cache-sets:
+          const: 2048
+        cache-size:
+          const: 2097152
+
 examples:
   - |
     #include <dt-bindings/interrupt-controller/irq.h>
 
     cache-controller@13400000 {
-        compatible = "andestech,ax45mp-cache", "cache";
+        compatible = "renesas,r9a07g043f-ax45mp-cache", "andestech,ax45mp-cache",
+                     "cache";
         reg = <0x13400000 0x100000>;
         interrupts = <508 IRQ_TYPE_LEVEL_HIGH>;
         cache-line-size = <64>;

Documentation/devicetree/bindings/cache/marvell,feroceon-cache.txt

@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/cache/marvell,kirkwood-cache.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell Feroceon/Kirkwood Cache
+
+maintainers:
+  - Andrew Lunn <[email protected]>
+  - Gregory Clement <[email protected]>
+
+properties:
+  compatible:
+    enum:
+      - marvell,feroceon-cache
+      - marvell,kirkwood-cache
+
+  reg:
+    maxItems: 1
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: marvell,kirkwood-cache
+    then:
+      required:
+        - reg
+    else:
+      properties:
+        reg: false
+
+required:
+  - compatible
+
+additionalProperties: false
+
+examples:
+  - |
+    l2-cache@20128 {
+        compatible = "marvell,kirkwood-cache";
+        reg = <0x20128 0x4>;
+    };

Documentation/devicetree/bindings/cache/marvell,kirkwood-cache.yaml

@@ -0,0 +1,39 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/cache/marvell,tauros2-cache.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell Tauros2 Cache
+
+maintainers:
+  - Andrew Lunn <[email protected]>
+  - Gregory Clement <[email protected]>
+
+properties:
+  compatible:
+    const: marvell,tauros2-cache
+
+  marvell,tauros2-cache-features:
+    description: >
+      Specify the features supported for the tauros2 cache. The features include:
+
+        - CACHE_TAUROS2_PREFETCH_ON (1 << 0)
+        - CACHE_TAUROS2_LINEFILL_BURST8 (1 << 1)
+
+      The definition can be found at arch/arm/include/asm/hardware/cache-tauros2.h
+    $ref: /schemas/types.yaml#/definitions/uint32
+    maximum: 0x3
+
+required:
+  - compatible
+  - marvell,tauros2-cache-features
+
+additionalProperties: false
+
+examples:
+  - |
+    l2-cache {
+        compatible = "marvell,tauros2-cache";
+        marvell,tauros2-cache-features = <0x3>;
+    };

Documentation/devicetree/bindings/cache/marvell,tauros2-cache.txt

@@ -39,6 +39,7 @@ properties:
           - const: cache
       - items:
           - enum:
+              - eswin,eic7700-l3-cache
               - starfive,jh7100-ccache
               - starfive,jh7110-ccache
           - const: sifive,ccache0
@@ -55,10 +56,10 @@ properties:
     enum: [2, 3]
 
   cache-sets:
-    enum: [1024, 2048]
+    enum: [1024, 2048, 4096]
 
   cache-size:
-    const: 2097152
+    enum: [2097152, 4194304]
 
   cache-unified: true
 
@@ -89,6 +90,7 @@ allOf:
         compatible:
           contains:
             enum:
+              - eswin,eic7700-l3-cache
               - sifive,fu740-c000-ccache
               - starfive,jh7100-ccache
               - starfive,jh7110-ccache
@@ -108,6 +110,22 @@ allOf:
             Must contain entries for DirError, DataError and DataFail signals.
           maxItems: 3
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: eswin,eic7700-l3-cache
+
+    then:
+      properties:
+        cache-size:
+          const: 4194304
+
+    else:
+      properties:
+        cache-size:
+          const: 2097152
+
   - if:
       properties:
         compatible:
@@ -122,11 +140,31 @@ allOf:
         cache-sets:
           const: 2048
 
-    else:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - microchip,mpfs-ccache
+              - sifive,fu540-c000-ccache
+
+    then:
       properties:
         cache-sets:
           const: 1024
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - eswin,eic7700-l3-cache
+
+    then:
+      properties:
+        cache-sets:
+          const: 4096
+
   - if:
       properties:
         compatible:

Documentation/devicetree/bindings/cache/marvell,tauros2-cache.yaml

@@ -118,6 +118,8 @@ static void ccache_config_read(void)
 }
 
 static const struct of_device_id sifive_ccache_ids[] = {
+	{ .compatible = "eswin,eic7700-l3-cache",
+	  .data = (void *)(QUIRK_NONSTANDARD_CACHE_OPS) },
 	{ .compatible = "sifive,fu540-c000-ccache" },
 	{ .compatible = "sifive,fu740-c000-ccache" },
 	{ .compatible = "starfive,jh7100-ccache",