arm: dts: Add base dtsi and devkit dts for Intel N5X device

Add device tree for N5X.

Signed-off-by: Siew Chin Lim <elly.siew.chin.lim@intel.com>
Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>
Reviewed-by: Ley Foon Tan <lftan.linux@gmail.com>

4 files changed, 377 insertions, 0 deletions

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index c42715e..82a0790 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -400,6 +400,7 @@ dtb-$(CONFIG_ARCH_SOCFPGA) +=				\
 	socfpga_cyclone5_socrates.dtb			\
 	socfpga_cyclone5_sr1500.dtb			\
 	socfpga_cyclone5_vining_fpga.dtb		\
+	socfpga_n5x_socdk.dtb				\
 	socfpga_stratix10_socdk.dtb
 
 dtb-$(CONFIG_TARGET_DRA7XX_EVM) += dra72-evm.dtb dra7-evm.dtb	\
diff --git a/arch/arm/dts/socfpga_n5x-u-boot.dtsi b/arch/arm/dts/socfpga_n5x-u-boot.dtsi
new file mode 100644
index 0000000..d377ae5
--- /dev/null
+++ b/arch/arm/dts/socfpga_n5x-u-boot.dtsi
@@ -0,0 +1,191 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * U-Boot additions
+ *
+ * Copyright (C) 2020-2021 Intel Corporation <www.intel.com>
+ */
+
+#include "socfpga_soc64_fit-u-boot.dtsi"
+#include <dt-bindings/clock/n5x-clock.h>
+
+/{
+	memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		u-boot,dm-pre-reloc;
+	};
+
+	soc {
+		u-boot,dm-pre-reloc;
+
+		ccu: cache-controller@f7000000 {
+			compatible = "arteris,ncore-ccu";
+			reg = <0xf7000000 0x100900>;
+			u-boot,dm-pre-reloc;
+		};
+
+		clocks {
+			dram_eosc_clk: dram-eosc-clk {
+				#clock-cells = <0>;
+				compatible = "fixed-clock";
+			};
+		};
+
+		memclkmgr: mem-clock-controller@f8040000 {
+			compatible = "intel,n5x-mem-clkmgr";
+			reg = <0xf8040000 0x1000>;
+			#clock-cells = <0>;
+			clocks = <&dram_eosc_clk>, <&f2s_free_clk>;
+		};
+	};
+};
+
+&clkmgr {
+	compatible = "intel,n5x-clkmgr";
+	u-boot,dm-pre-reloc;
+};
+
+&gmac0 {
+	clocks = <&clkmgr N5X_EMAC0_CLK>;
+};
+
+&gmac1 {
+	altr,sysmgr-syscon = <&sysmgr 0x48 0>;
+	clocks = <&clkmgr N5X_EMAC1_CLK>;
+};
+
+&gmac2 {
+	altr,sysmgr-syscon = <&sysmgr 0x4c 0>;
+	clocks = <&clkmgr N5X_EMAC2_CLK>;
+};
+
+&i2c0 {
+	clocks = <&clkmgr N5X_L4_SP_CLK>;
+	reset-names = "i2c";
+};
+
+&i2c1 {
+	clocks = <&clkmgr N5X_L4_SP_CLK>;
+	reset-names = "i2c";
+};
+
+&i2c2 {
+	clocks = <&clkmgr N5X_L4_SP_CLK>;
+	reset-names = "i2c";
+};
+
+&i2c3 {
+	clocks = <&clkmgr N5X_L4_SP_CLK>;
+	reset-names = "i2c";
+};
+
+&i2c4 {
+	clocks = <&clkmgr N5X_L4_SP_CLK>;
+	reset-names = "i2c";
+};
+
+&memclkmgr {
+	u-boot,dm-pre-reloc;
+};
+
+&mmc {
+	clocks = <&clkmgr N5X_L4_MP_CLK>,
+		 <&clkmgr N5X_SDMMC_CLK>;
+	resets = <&rst SDMMC_RESET>, <&rst SDMMC_OCP_RESET>;
+};
+
+&pdma {
+	clocks = <&clkmgr N5X_L4_MAIN_CLK>;
+};
+
+&porta {
+	bank-name = "porta";
+};
+
+&portb {
+	bank-name = "portb";
+};
+
+&qspi {
+	u-boot,dm-pre-reloc;
+};
+
+&rst {
+	compatible = "altr,rst-mgr";
+	altr,modrst-offset = <0x20>;
+	u-boot,dm-pre-reloc;
+};
+
+&sdr {
+	compatible = "intel,sdr-ctl-n5x";
+	resets = <&rst DDRSCH_RESET>;
+	clocks = <&memclkmgr>;
+	clock-names = "mem_clk";
+	u-boot,dm-pre-reloc;
+};
+
+&spi0 {
+	clocks = <&clkmgr N5X_L4_MAIN_CLK>;
+};
+
+&spi1 {
+	clocks = <&clkmgr N5X_L4_MAIN_CLK>;
+};
+
+&sysmgr {
+	compatible = "altr,sys-mgr", "syscon";
+	u-boot,dm-pre-reloc;
+};
+
+&timer0 {
+	clocks = <&clkmgr N5X_L4_SP_CLK>;
+};
+
+&timer1 {
+	clocks = <&clkmgr N5X_L4_SP_CLK>;
+};
+
+&timer2 {
+	clocks = <&clkmgr N5X_L4_SP_CLK>;
+};
+
+&timer3 {
+	clocks = <&clkmgr N5X_L4_SP_CLK>;
+};
+
+&uart0 {
+	clocks = <&clkmgr N5X_L4_SP_CLK>;
+	u-boot,dm-pre-reloc;
+};
+
+&uart1 {
+	clocks = <&clkmgr N5X_L4_SP_CLK>;
+};
+
+&usb0 {
+	clocks = <&clkmgr N5X_USB_CLK>;
+	disable-over-current;
+	u-boot,dm-pre-reloc;
+};
+
+&usb1 {
+	clocks = <&clkmgr N5X_USB_CLK>;
+	u-boot,dm-pre-reloc;
+};
+
+&watchdog0 {
+	clocks = <&clkmgr N5X_L4_SYS_FREE_CLK>;
+	u-boot,dm-pre-reloc;
+};
+
+&watchdog1 {
+	clocks = <&clkmgr N5X_L4_SYS_FREE_CLK>;
+};
+
+&watchdog2 {
+	clocks = <&clkmgr N5X_L4_SYS_FREE_CLK>;
+};
+
+&watchdog3 {
+	clocks = <&clkmgr N5X_L4_SYS_FREE_CLK>;
+};
diff --git a/arch/arm/dts/socfpga_n5x_socdk-u-boot.dtsi b/arch/arm/dts/socfpga_n5x_socdk-u-boot.dtsi
new file mode 100644
index 0000000..502da36
--- /dev/null
+++ b/arch/arm/dts/socfpga_n5x_socdk-u-boot.dtsi
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * U-Boot additions
+ *
+ * Copyright (C) 2020-2021 Intel Corporation <www.intel.com>
+ */
+
+#include "socfpga_n5x-u-boot.dtsi"
+
+/{
+	aliases {
+		spi0 = &qspi;
+		i2c0 = &i2c1;
+	};
+
+	memory {
+		/*
+		 * Memory type: DDR4 (non-interleaving mode)
+		 * 16GB
+		 *     <0 0x00000000 0 0x80000000>,
+		 *     <4 0x80000000 3 0x80000000>;
+		 *
+		 * 8GB
+		 *     <0 0x00000000 0 0x80000000>,
+		 *     <2 0x80000000 1 0x80000000>;
+		 *
+		 * 4GB
+		 *     <0 0x00000000 0 0x80000000>,
+		 *     <1 0x80000000 0 0x80000000>;
+		 *
+		 * Memory type: LPDDR4 (non-interleaving mode)
+		 * Total memory size 3GB, usable = 2.5GB, 0.5GB trade off for secure
+		 * region.
+		 */
+		reg = <0 0x00000000 0 0x60000000>,
+			  <0x10 0x00100000 0 0x40000000>;
+	};
+};
+
+&flash0 {
+	compatible = "jedec,spi-nor";
+	spi-tx-bus-width = <4>;
+	spi-rx-bus-width = <4>;
+	u-boot,dm-pre-reloc;
+};
+
+&i2c1 {
+	status = "okay";
+};
+
+&mmc {
+	drvsel = <3>;
+	smplsel = <0>;
+	u-boot,dm-pre-reloc;
+};
+
+&qspi {
+	status = "okay";
+};
+
+&watchdog0 {
+	u-boot,dm-pre-reloc;
+};
diff --git a/arch/arm/dts/socfpga_n5x_socdk.dts b/arch/arm/dts/socfpga_n5x_socdk.dts
new file mode 100644
index 0000000..915b8f6
--- /dev/null
+++ b/arch/arm/dts/socfpga_n5x_socdk.dts
@@ -0,0 +1,122 @@
+// SPDX-License-Identifier:     GPL-2.0
+/*
+ * Copyright (C) 2020-2021, Intel Corporation
+ */
+#include "socfpga_agilex.dtsi"
+
+/ {
+	model = "eASIC N5X SoCDK";
+
+	aliases {
+		serial0 = &uart0;
+		ethernet0 = &gmac0;
+		ethernet1 = &gmac1;
+		ethernet2 = &gmac2;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	memory {
+		device_type = "memory";
+		/* We expect the bootloader to fill in the reg */
+		reg = <0 0 0 0>;
+	};
+
+	soc {
+		clocks {
+			osc1 {
+				clock-frequency = <25000000>;
+			};
+		};
+	};
+};
+
+&gmac0 {
+	status = "okay";
+	phy-mode = "rgmii";
+	phy-handle = <&phy0>;
+	max-frame-size = <9000>;
+
+	mdio0 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "snps,dwmac-mdio";
+		phy0: ethernet-phy@0 {
+			reg = <4>;
+
+			txd0-skew-ps = <0>; /* -420ps */
+			txd1-skew-ps = <0>; /* -420ps */
+			txd2-skew-ps = <0>; /* -420ps */
+			txd3-skew-ps = <0>; /* -420ps */
+			rxd0-skew-ps = <420>; /* 0ps */
+			rxd1-skew-ps = <420>; /* 0ps */
+			rxd2-skew-ps = <420>; /* 0ps */
+			rxd3-skew-ps = <420>; /* 0ps */
+			txen-skew-ps = <0>; /* -420ps */
+			txc-skew-ps = <900>; /* 0ps */
+			rxdv-skew-ps = <420>; /* 0ps */
+			rxc-skew-ps = <1680>; /* 780ps */
+		};
+	};
+};
+
+&gpio1 {
+	status = "okay";
+};
+
+&mmc {
+	status = "okay";
+	cap-sd-highspeed;
+	broken-cd;
+	bus-width = <4>;
+};
+
+&qspi {
+	status = "okay";
+	flash0: flash@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "mt25qu02g";
+		reg = <0>;
+		spi-max-frequency = <100000000>;
+
+		m25p,fast-read;
+		cdns,page-size = <256>;
+		cdns,block-size = <16>;
+		cdns,read-delay = <3>;
+		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 0x034B0000>;
+			};
+
+			qspi_rootfs: partition@34B0000 {
+				label = "Root Filesystem - JFFS2";
+				reg = <0x034B0000 0x0EB50000>;
+			};
+		};
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&usb0 {
+	status = "okay";
+};
+
+&usb1 {
+	status = "okay";
+};