[PATCH v2] ARM: zynq: DT: List OCM memory

Michal Simek michal.simek at amd.com
Tue Sep 6 12:38:34 CEST 2022


Description OCM with mmio-sram driver. In 99% use cases OCM is mapped high
that's why it is placed on fixed location.

Signed-off-by: Michal Simek <michal.simek at amd.com>
---

Changes in v2:
- Remove ocmc controller and use only OCM
- Remove OCM setup from zc702

 arch/arm/dts/zynq-7000.dtsi | 11 +++++++++++
 arch/arm/dts/zynq-zc702.dts | 13 -------------
 2 files changed, 11 insertions(+), 13 deletions(-)

diff --git a/arch/arm/dts/zynq-7000.dtsi b/arch/arm/dts/zynq-7000.dtsi
index 11fa0ef2bfed..edc147d63f1e 100644
--- a/arch/arm/dts/zynq-7000.dtsi
+++ b/arch/arm/dts/zynq-7000.dtsi
@@ -192,6 +192,17 @@
 			reg = <0xf8006000 0x1000>;
 		};
 
+		ocm: sram at fffc0000 {
+			compatible = "mmio-sram";
+			reg = <0xfffc0000 0x10000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0 0xfffc0000 0x10000>;
+			ocm-sram at 0 {
+				reg = <0x0 0x10000>;
+			};
+		};
+
 		uart0: serial at e0000000 {
 			compatible = "xlnx,xuartps", "cdns,uart-r1p8";
 			status = "disabled";
diff --git a/arch/arm/dts/zynq-zc702.dts b/arch/arm/dts/zynq-zc702.dts
index f2e05a55b958..1bd4f8c9f661 100644
--- a/arch/arm/dts/zynq-zc702.dts
+++ b/arch/arm/dts/zynq-zc702.dts
@@ -64,19 +64,6 @@
 	};
 };
 
-&amba {
-	ocm: sram at fffc0000 {
-		compatible = "mmio-sram";
-		reg = <0xfffc0000 0x10000>;
-		#address-cells = <1>;
-		#size-cells = <1>;
-		ranges = <0 0xfffc0000 0x10000>;
-		ocm-sram at 0 {
-			reg = <0x0 0x10000>;
-		};
-	};
-};
-
 &can0 {
 	status = "okay";
 	pinctrl-names = "default";
-- 
2.36.1



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