[U-Boot] [PATCH 5/6] riscv: dts: move out AE350 L2 node from cpus node

[Andes]

From: Rick Chen <rick at andestech.com>

When L2 node exists inside cpus node, uclass_get_device
can not parse L2 node successfully. So move it outside
from cpus node.

Also add tag-ram-ctl and data-ram-ctl attributes for
v5l2 cache controller driver. This can adjust timing
by requirement from dtb to improve performance.

Signed-off-by: Rick Chen <rick at andestech.com>
Cc: Greentime Hu <greentime at andestech.com>
---
 arch/riscv/dts/ae350_32.dts | 17 +++++++++++------
 arch/riscv/dts/ae350_64.dts | 17 +++++++++++------
 2 files changed, 22 insertions(+), 12 deletions(-)

diff --git a/arch/riscv/dts/ae350_32.dts b/arch/riscv/dts/ae350_32.dts
index cb6ee13..83abfcb 100644
--- a/arch/riscv/dts/ae350_32.dts
+++ b/arch/riscv/dts/ae350_32.dts
@@ -62,13 +62,18 @@
 				compatible = "riscv,cpu-intc";
 			};
 		};
+	};
 
-		L2: l2-cache at e0500000 {
-			compatible = "cache";
-			cache-level = <2>;
-			cache-size = <0x40000>;
-			reg = <0x0 0xe0500000 0x0 0x40000>;
-		};
+	L2: l2-cache at e0500000 {
+		compatible = "cache";
+		cache-level = <2>;
+		cache-size = <0x40000>;
+		reg = <0xe0500000 0x40000>;
+		andes,inst-prefetch = <3>;
+		andes,data-prefetch = <3>;
+		// The value format is <XRAMOCTL XRAMICTL>
+		andes,tag-ram-ctl = <0 0>;
+		andes,data-ram-ctl = <0 0>;
 	};
 
 	memory at 0 {
diff --git a/arch/riscv/dts/ae350_64.dts b/arch/riscv/dts/ae350_64.dts
index 705491a..7009bdc 100644
--- a/arch/riscv/dts/ae350_64.dts
+++ b/arch/riscv/dts/ae350_64.dts
@@ -62,13 +62,18 @@
 				compatible = "riscv,cpu-intc";
 			};
 		};
+	};
 
-		L2: l2-cache at e0500000 {
-			compatible = "cache";
-			cache-level = <2>;
-			cache-size = <0x40000>;
-			reg = <0x0 0xe0500000 0x0 0x40000>;
-		};
+	L2: l2-cache at e0500000 {
+		compatible = "cache";
+		cache-level = <2>;
+		cache-size = <0x40000>;
+		reg = <0x0 0xe0500000 0x0 0x40000>;
+		andes,inst-prefetch = <3>;
+		andes,data-prefetch = <3>;
+		// The value format is <XRAMOCTL XRAMICTL>
+		andes,tag-ram-ctl = <0 0>;
+		andes,data-ram-ctl = <0 0>;
 	};
 
 	memory at 0 {
-- 
2.7.4