[PATCH v2] arm64: dts: ls1088a: Add qspi device node for ls1088a-rdb

[yogeshnarayan.gaur@nxp.com (Yogesh Gaur)]

Add nodes and properties for QSPI controller.
Add support for spansion flash, s25fs512s, as slave device for
QSPI controller.

Added entry of "fsl,ls1088a-qspi" in fsl-quadspi.txt binding file.

Signed-off-by: Suresh Gupta <suresh.gupta@nxp.com>
Signed-off-by: Yogesh Gaur <yogeshnarayan.gaur@nxp.com>
---
Depends on
 https://patchwork.ozlabs.org/project/linux-mtd/list/?series=26084

Changes for v2:
- Move property spi-rx-bus-width and spi-tx-bus-width from controller
  to connected slave device node.

 .../devicetree/bindings/mtd/fsl-quadspi.txt        |  1 +
 arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts  | 23 ++++++++++++++++++++++
 arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi     | 12 +++++++++++
 3 files changed, 36 insertions(+)

diff --git a/Documentation/devicetree/bindings/mtd/fsl-quadspi.txt b/Documentation/devicetree/bindings/mtd/fsl-quadspi.txt
index 811da0e..956c23c 100644
--- a/Documentation/devicetree/bindings/mtd/fsl-quadspi.txt
+++ b/Documentation/devicetree/bindings/mtd/fsl-quadspi.txt
@@ -7,6 +7,7 @@ Required properties:
 		 or
 		 "fsl,ls2080a-qspi" followed by "fsl,ls1021a-qspi",
 		 "fsl,ls1043a-qspi" followed by "fsl,ls1021a-qspi"
+		 "fsl,ls2080a-qspi" followed by "fsl,ls1088a-qspi",
   - reg : the first contains the register location and length,
           the second contains the memory mapping address and length
   - reg-names: Should contain the reg names "QuadSPI" and "QuadSPI-memory"
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts
index 0f6fcda..8afe536 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts
@@ -94,6 +94,29 @@
 	};
 };
 
+&qspi {
+	status = "okay";
+	fsl,qspi-has-second-chip;
+	qflash0: s25fs512s at 0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		spi-max-frequency = <20000000>;
+		reg = <0>;
+		spi-rx-bus-width = <4>;
+		spi-tx-bus-width = <4>;
+	};
+
+	qflash1: s25fs512s at 1 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		spi-max-frequency = <20000000>;
+		reg = <1>;
+		spi-rx-bus-width = <4>;
+		spi-tx-bus-width = <4>;
+	};
+
+};
+
 &ifc {
 	ranges = <0 0 0x5 0x30000000 0x00010000
 		  2 0 0x5 0x20000000 0x00010000>;
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
index bd80e9a..b45a522 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
@@ -394,6 +394,18 @@
 			status = "disabled";
 		};
 
+		qspi: quadspi at 20c0000 {
+			compatible = "fsl,ls2080a-qspi", "fsl,ls1088a-qspi";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x0 0x20c0000 0x0 0x10000>,
+				<0x0 0x20000000 0x0 0x10000000>;
+			reg-names = "QuadSPI", "QuadSPI-memory";
+			interrupts = <0 25 0x4>; /* Level high type */
+			clocks = <&clockgen 4 3>, <&clockgen 4 3>;
+			clock-names = "qspi_en", "qspi";
+		};
+
 		sata: sata at 3200000 {
 			compatible = "fsl,ls1088a-ahci";
 			reg = <0x0 0x3200000 0x0 0x10000>,
-- 
1.9.1