Commit 0cb140d0 authored by Thor Thayer's avatar Thor Thayer Committed by Dinh Nguyen
Browse files

arm64: dts: stratix10: Add QSPI support for Stratix10 



Add qspi_clock
   The qspi_clk frequency is updated by U-Boot before starting Linux.
Add QSPI interface node.
Add QSPI flash memory child node.
   Setup the QSPI memory in 2 partitions.

Signed-off-by: default avatarThor Thayer <thor.thayer@linux.intel.com>
Signed-off-by: default avatarDinh Nguyen <dinguyen@kernel.org>
parent 021c9179

arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi

+21 −0
Original line number Diff line number Diff line
@@ -119,6 +119,12 @@ 
				#clock-cells = <0>;

				compatible = "fixed-clock";

			};



			qspi_clk: qspi-clk {

				#clock-cells = <0>;

				compatible = "fixed-clock";

				clock-frequency = <200000000>;

			};

		};



		gmac0: ethernet@ff800000 {
@@ -464,5 +470,20 @@ 
				interrupts = <16 4>, <48 4>;

			};

		};



		qspi: spi@ff8d2000 {

			compatible = "cdns,qspi-nor";

			#address-cells = <1>;

			#size-cells = <0>;

			reg = <0xff8d2000 0x100>,

			      <0xff900000 0x100000>;

			interrupts = <0 3 4>;

			cdns,fifo-depth = <128>;

			cdns,fifo-width = <4>;

			cdns,trigger-address = <0x00000000>;

			clocks = <&qspi_clk>;



			status = "disabled";

		};

	};

};

arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts

+35 −0
Original line number Diff line number Diff line
@@ -147,3 +147,38 @@ 
		reg = <0x68>;

	};

};



&qspi {

	flash@0 {

		#address-cells = <1>;

		#size-cells = <1>;

		compatible = "n25q00a";

		reg = <0>;

		spi-max-frequency = <50000000>;



		m25p,fast-read;

		cdns,page-size = <256>;

		cdns,block-size = <16>;

		cdns,read-delay = <1>;

		cdns,tshsl-ns = <50>;

		cdns,tsd2d-ns = <50>;

		cdns,tchsh-ns = <4>;

		cdns,tslch-ns = <4>;



		partitions {

			compatible = "fixed-partitions";

			#address-cells = <1>;

			#size-cells = <1>;



			qspi_boot: partition@0 {

				label = "Boot and fpga data";

				reg = <0x0 0x4000000>;

			};



			qspi_rootfs: partition@4000000 {

				label = "Root Filesystem - JFFS2";

				reg = <0x4000000 0x4000000>;

			};

		};

	};

};

CRA Git | Maintained and supported by SUSTech CRA and CCSE