arm64: versal: Add octal spi flash mini u-boot configuration

Add configuration file for mini u-boot configuration which runs on a
smaller footprint from on chip memory(OCM). This configuration has
required CONFIG's enabled to support octal spi flash and uses DCC terminal
for console output. Add required dts for octal spi flash mini u-boot
configuration.

Signed-off-by: Ashok Reddy Soma <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michal Simek <[email protected]>

3 files changed, 94 insertions, 0 deletions

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 7d3cac0eb75..43951a7731e 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -383,6 +383,7 @@ dtb-$(CONFIG_ARCH_VERSAL) += \
 	versal-mini.dtb \
 	versal-mini-emmc0.dtb \
 	versal-mini-emmc1.dtb \
+	versal-mini-ospi-single.dtb \
 	versal-mini-qspi-single.dtb \
 	xilinx-versal-virt.dtb
 dtb-$(CONFIG_ARCH_VERSAL_NET) += \
diff --git a/arch/arm/dts/versal-mini-ospi-single.dts b/arch/arm/dts/versal-mini-ospi-single.dts
new file mode 100644
index 00000000000..23f6e47a18a
--- /dev/null
+++ b/arch/arm/dts/versal-mini-ospi-single.dts
@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Xilinx Versal QSPI single DTS
+ *
+ * Copyright (C) 2018-2020 Xilinx, Inc.
+ */
+
+#include "versal-mini-ospi.dtsi"
+
+/ {
+	model = "Xilinx Versal MINI OSPI SINGLE";
+};
+
+&flash0 {
+	spi-rx-bus-width = <8>;
+};
diff --git a/arch/arm/dts/versal-mini-ospi.dtsi b/arch/arm/dts/versal-mini-ospi.dtsi
new file mode 100644
index 00000000000..a4b76e2b995
--- /dev/null
+++ b/arch/arm/dts/versal-mini-ospi.dtsi
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * dts file for Xilinx Versal Mini OSPI Configuration
+ *
+ * (C) Copyright 2018-2019, Xilinx, Inc.
+ *
+ * Siva Durga Prasad <[email protected]>
+ * Michal Simek <[email protected]>
+ */
+
+/dts-v1/;
+
+/ {
+	compatible = "xlnx,versal";
+	#address-cells = <2>;
+	#size-cells = <2>;
+	model = "Xilinx Versal MINI OSPI";
+
+	clk125: clk125 {
+		compatible = "fixed-clock";
+		#clock-cells = <0x0>;
+		clock-frequency = <125000000>;
+	};
+
+	dcc: dcc {
+		compatible = "arm,dcc";
+		status = "okay";
+		u-boot,dm-pre-reloc;
+	};
+
+	amba: amba {
+		u-boot,dm-pre-reloc;
+		compatible = "simple-bus";
+		#address-cells = <0x2>;
+		#size-cells = <0x2>;
+		ranges;
+
+		ospi: spi@f1010000 {
+			compatible = "cadence,qspi", "cdns,qspi-nor";
+			status = "okay";
+			reg = <0 0xf1010000 0 0x10000 0 0xc0000000 0 0x20000000>;
+			clock-names = "ref_clk", "pclk";
+			clocks = <&clk125 &clk125>;
+			bus-num = <2>;
+			num-cs = <1>;
+			cdns,fifo-depth = <256>;
+			cdns,fifo-width = <4>;
+			cdns,is-dma = <1>;
+			cdns,trigger-address = <0xc0000000>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			flash0: flash@0 {
+				compatible = "n25q512a", "micron,m25p80",
+					     "jedec,spi-nor";
+				reg = <0x0>;
+				spi-tx-bus-width = <8>;
+				spi-rx-bus-width = <8>;
+				spi-max-frequency = <20000000>;
+			};
+		};
+	};
+
+	aliases {
+		serial0 = &dcc;
+		spi0 = &ospi;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200";
+	};
+
+	memory@fffc0000 {
+		device_type = "memory";
+		reg = <0x0 0xfffc0000 0x0 0x40000>;
+	};
+};