arm64: versal: Add mini OSPI configuration

This patch adds new mini configuration for Versal
which has only ospi enabled. This mini configration
is required to run u-boot from on chip memory with
ospi support.

Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

arch/arm/dts/Makefile

@@ -197,6 +197,7 @@ dtb-$(CONFIG_ARCH_ZYNQMP) += \
 dtb-$(CONFIG_ARCH_VERSAL) += \
 	versal-mini-emmc0.dtb \
 	versal-mini-emmc1.dtb \
+	versal-mini-ospi.dtb \
 	versal-mini-qspi-parallel.dtb \
 	versal-mini-qspi-single.dtb \
 	versal-mini-qspi-stacked.dtb \

arch/arm/dts/versal-mini-ospi.dts

@@ -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 <siva.durga.paladugu@xilinx.com>
+ * Michal Simek <michal.simek@xilinx.com>
+ */
+
+/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";
+			status = "okay";
+			reg = <0x0 0xf1010000 0x0 0x1000>;
+			clock-names = "ref_clk", "pclk";
+			clocks = <&clk125 &clk125>;
+			bus-num = <2>;
+			num-cs = <1>;
+			cdns,fifo-depth = <508>;
+			cdns,fifo-width = <4>;
+			cdns,is-dma = <1>;
+			cdns,is-stig-pgm = <1>;
+			#stream-id-cells = <1>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			flash@0 {
+				compatible = "n25q512a", "micron,m25p80", "spi-flash";
+				reg = <0x0>;
+				spi-tx-bus-width = <1>;
+				spi-rx-bus-width = <8>;
+				spi-max-frequency = <108000000>;
+			};
+		};
+	};
+
+	aliases {
+		serial0 = &dcc;
+		spi0 = &ospi;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200";
+	};
+
+	memory@fffc0000 {
+		device_type = "memory";
+		reg = <0x0 0xfffc0000 0x0 0x40000>;
+	};
+};

configs/xilinx_versal_mini_ospi_defconfig

@@ -0,0 +1,64 @@
+CONFIG_ARM=y
+CONFIG_SYS_CONFIG_NAME="xilinx_versal_mini_qspi"
+CONFIG_ARCH_VERSAL=y
+CONFIG_SYS_TEXT_BASE=0xFFFC0000
+CONFIG_ENV_SIZE=0x80
+CONFIG_SYS_MALLOC_LEN=0x2000
+CONFIG_SYS_MEM_RSVD_FOR_MMU=y
+CONFIG_COUNTER_FREQUENCY=2720000
+CONFIG_NR_DRAM_BANKS=1
+# CONFIG_IMAGE_FORMAT_LEGACY is not set
+# CONFIG_DISPLAY_CPUINFO is not set
+CONFIG_BOARD_EARLY_INIT_R=y
+# CONFIG_CMDLINE_EDITING is not set
+# CONFIG_AUTO_COMPLETE is not set
+# CONFIG_SYS_LONGHELP is not set
+CONFIG_SYS_PROMPT="Versal> "
+# CONFIG_AUTOBOOT is not set
+# CONFIG_CMD_BDI is not set
+# CONFIG_CMD_CONSOLE is not set
+# CONFIG_CMD_BOOTD is not set
+# CONFIG_CMD_BOOTM is not set
+# CONFIG_CMD_BOOTI is not set
+# CONFIG_CMD_ELF is not set
+# CONFIG_CMD_FDT is not set
+# CONFIG_CMD_GO is not set
+# CONFIG_CMD_RUN is not set
+# CONFIG_CMD_IMI is not set
+# CONFIG_CMD_XIMG is not set
+# CONFIG_CMD_EXPORTENV is not set
+# CONFIG_CMD_IMPORTENV is not set
+# CONFIG_CMD_EDITENV is not set
+# CONFIG_CMD_SAVEENV is not set
+# CONFIG_CMD_ENV_EXISTS is not set
+# CONFIG_CMD_CRC32 is not set
+# CONFIG_CMD_FLASH is not set
+# CONFIG_CMD_LOADB is not set
+# CONFIG_CMD_LOADS is not set
+CONFIG_CMD_SF=y
+# CONFIG_CMD_ECHO is not set
+# CONFIG_CMD_ITEST is not set
+# CONFIG_CMD_SOURCE is not set
+# CONFIG_CMD_SETEXPR is not set
+# CONFIG_CMD_MISC is not set
+# CONFIG_PARTITIONS is not set
+CONFIG_OF_EMBED=y
+CONFIG_DEFAULT_DEVICE_TREE="versal-mini-ospi"
+# CONFIG_NET is not set
+# CONFIG_DM_WARN is not set
+# CONFIG_DM_DEVICE_REMOVE is not set
+# CONFIG_MMC is not set
+CONFIG_DM_SPI_FLASH=y
+CONFIG_SPI_FLASH=y
+CONFIG_SPI_FLASH_BAR=y
+CONFIG_SPI_FLASH_ISSI=y
+CONFIG_SPI_FLASH_MACRONIX=y
+CONFIG_SPI_FLASH_SPANSION=y
+CONFIG_SPI_FLASH_STMICRO=y
+CONFIG_SPI_FLASH_SST=y
+CONFIG_SPI_FLASH_WINBOND=y
+CONFIG_SPI=y
+CONFIG_DM_SPI=y
+CONFIG_CADENCE_QSPI=y
+CONFIG_CADENCE_OSPI_VERSAL=y
+# CONFIG_EFI_LOADER is not set