xilinx: versal-net: Add mini ospi configuration

Add support for Versal NET mini Octal SPI flash configuration. This runs
from onchip memory, so it has to be compact. Hence only Octal SPI
related settings are enabled.

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

4 files changed, 169 insertions, 0 deletions

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index f9bc0a99318..5975f80a4a1 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -416,6 +416,7 @@ dtb-$(CONFIG_ARCH_VERSAL) += \
 	xilinx-versal-virt.dtb
 dtb-$(CONFIG_ARCH_VERSAL_NET) += \
 	versal-net-mini.dtb \
+	versal-net-mini-ospi-single.dtb \
 	versal-net-mini-qspi-single.dtb \
 	xilinx-versal-net-virt.dtb
 dtb-$(CONFIG_ARCH_ZYNQMP_R5) += \
diff --git a/arch/arm/dts/versal-net-mini-ospi-single.dts b/arch/arm/dts/versal-net-mini-ospi-single.dts
new file mode 100644
index 00000000000..11a8e8b136a
--- /dev/null
+++ b/arch/arm/dts/versal-net-mini-ospi-single.dts
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Xilinx Versal NET OSPI single DTS
+ *
+ * (C) Copyright 2023, Advanced Micro Devices, Inc.
+ *
+ * Michal Simek <[email protected]>
+ * Ashok Reddy Soma <[email protected]>
+ */
+
+#include "versal-net-mini-ospi.dtsi"
+
+/ {
+	model = "Xilinx Versal NET MINI OSPI SINGLE";
+};
+
+&flash0 {
+	spi-rx-bus-width = <8>;
+};
diff --git a/arch/arm/dts/versal-net-mini-ospi.dtsi b/arch/arm/dts/versal-net-mini-ospi.dtsi
new file mode 100644
index 00000000000..ce8e2158f6e
--- /dev/null
+++ b/arch/arm/dts/versal-net-mini-ospi.dtsi
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * dts file for Xilinx Versal NET Mini OSPI Configuration
+ *
+ * (C) Copyright 2023, Advanced Micro Devices, Inc.
+ *
+ * Michal Simek <[email protected]>
+ * Ashok Reddy Soma <[email protected]>
+ */
+
+/dts-v1/;
+
+/ {
+	compatible = "xlnx,versal-net-mini";
+	#address-cells = <2>;
+	#size-cells = <2>;
+	model = "Xilinx Versal NET MINI OSPI";
+
+	aliases {
+		serial0 = &dcc;
+		spi0 = &ospi;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200";
+	};
+
+	memory@bbf00000 {
+		device_type = "memory";
+		reg = <0 0xBBF00000 0 0x100000>;
+	};
+
+	clk125: clk125 {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <125000000>;
+	};
+
+	dcc: dcc {
+		compatible = "arm,dcc";
+		status = "okay";
+		bootph-all;
+	};
+
+	amba: amba {
+		bootph-all;
+		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,is-stig-pgm = <1>;
+			cdns,trigger-address = <0xc0000000>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			flash0: flash@0 {
+				compatible = "mt35xu02g", "micron,m25p80",
+					     "jedec,spi-nor";
+				reg = <0>;
+				spi-tx-bus-width = <8>;
+				spi-rx-bus-width = <8>;
+				spi-max-frequency = <20000000>;
+			};
+		};
+	};
+};
diff --git a/configs/xilinx_versal_net_mini_ospi_defconfig b/configs/xilinx_versal_net_mini_ospi_defconfig
new file mode 100644
index 00000000000..d11e180780d
--- /dev/null
+++ b/configs/xilinx_versal_net_mini_ospi_defconfig
@@ -0,0 +1,71 @@
+CONFIG_ARM=y
+CONFIG_SYS_CONFIG_NAME="xilinx_versal_net_mini"
+CONFIG_COUNTER_FREQUENCY=100000000
+CONFIG_ARCH_VERSAL_NET=y
+CONFIG_TEXT_BASE=0xBBF00000
+CONFIG_SYS_MALLOC_LEN=0x2000
+CONFIG_SYS_MALLOC_F_LEN=0x500
+CONFIG_NR_DRAM_BANKS=1
+CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
+CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0xBBF20000
+CONFIG_SF_DEFAULT_SPEED=30000000
+CONFIG_ENV_SIZE=0x80
+# CONFIG_DM_GPIO is not set
+CONFIG_DEFAULT_DEVICE_TREE="versal-net-mini-ospi-single"
+CONFIG_SYS_PROMPT="Versal NET> "
+CONFIG_SYS_MEM_RSVD_FOR_MMU=y
+# CONFIG_PSCI_RESET is not set
+CONFIG_SYS_LOAD_ADDR=0xBBF80000
+# CONFIG_EXPERT is not set
+CONFIG_REMAKE_ELF=y
+# CONFIG_AUTOBOOT is not set
+CONFIG_SYS_CONSOLE_INFO_QUIET=y
+# CONFIG_DISPLAY_CPUINFO is not set
+CONFIG_BOARD_EARLY_INIT_R=y
+# CONFIG_BOARD_LATE_INIT is not set
+# CONFIG_CMDLINE_EDITING is not set
+# CONFIG_AUTO_COMPLETE is not set
+# CONFIG_SYS_LONGHELP 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_LOADB is not set
+# CONFIG_CMD_LOADS is not set
+# 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_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_SOFT_RESET=y
+CONFIG_SPI_FLASH_SOFT_RESET_ON_BOOT=y
+CONFIG_SPI_FLASH_GIGADEVICE=y
+CONFIG_SPI_FLASH_ISSI=y
+CONFIG_SPI_FLASH_MACRONIX=y
+CONFIG_SPI_FLASH_STMICRO=y
+CONFIG_SPI_FLASH_MT35XU=y
+CONFIG_ARM_DCC=y
+CONFIG_SPI=y
+CONFIG_DM_SPI=y
+CONFIG_CADENCE_QSPI=y
+CONFIG_HAS_CQSPI_REF_CLK=y
+CONFIG_CQSPI_REF_CLK=200000000
+CONFIG_CADENCE_OSPI_VERSAL=y
+# CONFIG_LMB is not set