arm: add support to corstone1000 platform

Corstone1000 is a platform from arm, which includes pre
verified Corstone SSE710 sub-system that combines Cortex-A and
Cortex-M processors [0].

This code adds the support for the Cortex-A35 implementation
at host side, it contains also the necessary bits to support
the Corstone 1000 FVP (Fixed Virtual Platform) [1] and also the
FPGA MPS3 board implementation of this platform. [2]

0: https://developer.arm.com/documentation/102360/0000
1: https://developer.arm.com/tools-and-software/open-source-software/arm-platforms-software/arm-ecosystem-fvps
2: https://developer.arm.com/documentation/dai0550/c/

Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index c618aad..95f9253 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1352,6 +1352,12 @@
 	select ENV_IS_IN_FLASH if MTD
 	imply DISTRO_DEFAULTS
 
+config TARGET_CORSTONE1000
+	bool "Support Corstone1000 Platform"
+	select ARM64
+	select PL01X_SERIAL
+	select DM
+
 config TARGET_TOTAL_COMPUTE
 	bool "Support Total Compute Platform"
 	select ARM64
@@ -2300,7 +2306,7 @@
 source "arch/arm/mach-npcm/Kconfig"
 
 source "board/armltd/total_compute/Kconfig"
-
+source "board/armltd/corstone1000/Kconfig"
 source "board/bosch/shc/Kconfig"
 source "board/bosch/guardian/Kconfig"
 source "board/Marvell/octeontx/Kconfig"
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 2fa3957..2873d04 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -1273,6 +1273,9 @@
 
 dtb-$(CONFIG_ARCH_QEMU) += qemu-arm.dtb qemu-arm64.dtb
 
+dtb-$(CONFIG_TARGET_CORSTONE1000) += corstone1000-mps3.dtb \
+				corstone1000-fvp.dtb
+
 include $(srctree)/scripts/Makefile.dts
 
 targets += $(dtb-y)
diff --git a/arch/arm/dts/corstone1000-fvp.dts b/arch/arm/dts/corstone1000-fvp.dts
new file mode 100644
index 0000000..26b0f1b
--- /dev/null
+++ b/arch/arm/dts/corstone1000-fvp.dts
@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: GPL-2.0 or MIT
+/*
+ * Copyright (c) 2022, Arm Limited. All rights reserved.
+ * Copyright (c) 2022, Linaro Limited. All rights reserved.
+ *
+ */
+
+/dts-v1/;
+
+#include "corstone1000.dtsi"
+
+/ {
+	model = "ARM Corstone1000 FVP (Fixed Virtual Platform)";
+	compatible = "arm,corstone1000-fvp";
+
+	smsc: ethernet@4010000 {
+		compatible = "smsc,lan91c111";
+		reg = <0x40100000 0x10000>;
+		phy-mode = "mii";
+		interrupts = <GIC_SPI 116 IRQ_TYPE_LEVEL_HIGH>;
+		reg-io-width = <2>;
+	};
+
+	vmmc_v3_3d: fixed_v3_3d {
+		compatible = "regulator-fixed";
+		regulator-name = "vmmc_supply";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+	};
+
+	sdmmc0: mmc@40300000 {
+		compatible = "arm,pl18x", "arm,primecell";
+		reg = <0x40300000 0x1000>;
+		interrupts = <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
+		max-frequency = <12000000>;
+		vmmc-supply = <&vmmc_v3_3d>;
+		clocks = <&smbclk>, <&refclk100mhz>;
+		clock-names = "smclk", "apb_pclk";
+	};
+
+	sdmmc1: mmc@50000000 {
+		compatible = "arm,pl18x", "arm,primecell";
+		reg = <0x50000000 0x10000>;
+		interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
+		max-frequency = <12000000>;
+		vmmc-supply = <&vmmc_v3_3d>;
+		clocks = <&smbclk>, <&refclk100mhz>;
+		clock-names = "smclk", "apb_pclk";
+	};
+};
diff --git a/arch/arm/dts/corstone1000-mps3.dts b/arch/arm/dts/corstone1000-mps3.dts
new file mode 100644
index 0000000..e314674
--- /dev/null
+++ b/arch/arm/dts/corstone1000-mps3.dts
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0 or MIT
+/*
+ * Copyright (c) 2022, Arm Limited. All rights reserved.
+ * Copyright (c) 2022, Linaro Limited. All rights reserved.
+ *
+ */
+
+/dts-v1/;
+
+#include "corstone1000.dtsi"
+
+/ {
+	model = "ARM Corstone1000 FPGA MPS3 board";
+	compatible = "arm,corstone1000-mps3";
+
+	smsc: ethernet@4010000 {
+		compatible = "smsc,lan9220", "smsc,lan9115";
+		reg = <0x40100000 0x10000>;
+		phy-mode = "mii";
+		interrupts = <GIC_SPI 116 IRQ_TYPE_LEVEL_HIGH>;
+		reg-io-width = <2>;
+		smsc,irq-push-pull;
+	};
+
+	usb_host: usb@40200000 {
+		compatible = "nxp,usb-isp1763";
+		reg = <0x40200000 0x100000>;
+		interrupts = <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>;
+		bus-width = <16>;
+		dr_mode = "host";
+	};
+};
diff --git a/arch/arm/dts/corstone1000.dtsi b/arch/arm/dts/corstone1000.dtsi
new file mode 100644
index 0000000..4e46826
--- /dev/null
+++ b/arch/arm/dts/corstone1000.dtsi
@@ -0,0 +1,164 @@
+// SPDX-License-Identifier: GPL-2.0 or MIT
+/*
+ * Copyright (c) 2022, Arm Limited. All rights reserved.
+ * Copyright (c) 2022, Linaro Limited. All rights reserved.
+ *
+ */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+	interrupt-parent = <&gic>;
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	aliases {
+		serial0 = &uart0;
+		serial1 = &uart1;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu: cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a35";
+			reg = <0>;
+			next-level-cache = <&L2_0>;
+		};
+	};
+
+	memory@88200000 {
+		device_type = "memory";
+		reg = <0x88200000 0x77e00000>;
+	};
+
+	gic: interrupt-controller@1c000000 {
+		compatible = "arm,gic-400";
+		#interrupt-cells = <3>;
+		#address-cells = <0>;
+		interrupt-controller;
+		reg =	<0x1c010000 0x1000>,
+			<0x1c02f000 0x2000>,
+			<0x1c04f000 0x1000>,
+			<0x1c06f000 0x2000>;
+		interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(1) |
+			      IRQ_TYPE_LEVEL_LOW)>;
+	};
+
+	L2_0: l2-cache0 {
+		compatible = "cache";
+		cache-level = <2>;
+		cache-size = <0x80000>;
+		cache-line-size = <64>;
+		cache-sets = <1024>;
+	};
+
+	refclk100mhz: refclk100mhz {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <100000000>;
+		clock-output-names = "apb_pclk";
+	};
+
+	smbclk: refclk24mhzx2 {
+		/* Reference 24MHz clock x 2 */
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <48000000>;
+		clock-output-names = "smclk";
+	};
+
+	timer {
+		compatible = "arm,armv8-timer";
+		interrupts =	<GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(1) |
+				 IRQ_TYPE_LEVEL_LOW)>,
+				<GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(1) |
+				 IRQ_TYPE_LEVEL_LOW)>,
+				<GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(1) |
+				 IRQ_TYPE_LEVEL_LOW)>,
+				<GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(1) |
+				 IRQ_TYPE_LEVEL_LOW)>;
+	};
+
+	uartclk: uartclk {
+		/* UART clock - 50MHz */
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <50000000>;
+		clock-output-names = "uartclk";
+	};
+
+	psci {
+		compatible = "arm,psci-1.0", "arm,psci-0.2";
+		method = "smc";
+	};
+
+	soc {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		interrupt-parent = <&gic>;
+		ranges;
+
+		timer@1a220000 {
+			compatible = "arm,armv7-timer-mem";
+			reg = <0x1a220000 0x1000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			clock-frequency = <50000000>;
+			ranges;
+
+			frame@1a230000 {
+				frame-number = <0>;
+				interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
+				reg = <0x1a230000 0x1000>;
+			};
+		};
+
+		uart0: serial@1a510000 {
+			compatible = "arm,pl011", "arm,primecell";
+			reg = <0x1a510000 0x1000>;
+			interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&uartclk>, <&refclk100mhz>;
+			clock-names = "uartclk", "apb_pclk";
+		};
+
+		uart1: serial@1a520000 {
+			compatible = "arm,pl011", "arm,primecell";
+			reg = <0x1a520000 0x1000>;
+			interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&uartclk>, <&refclk100mhz>;
+			clock-names = "uartclk", "apb_pclk";
+		};
+
+		mhu_hse1: mailbox@1b820000 {
+			compatible = "arm,mhuv2-tx", "arm,primecell";
+			reg = <0x1b820000 0x1000>;
+			clocks = <&refclk100mhz>;
+			clock-names = "apb_pclk";
+			interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
+			#mbox-cells = <2>;
+			arm,mhuv2-protocols = <0 0>;
+			secure-status = "okay";     /* secure-world-only */
+			status = "disabled";
+		};
+
+		mhu_seh1: mailbox@1b830000 {
+			compatible = "arm,mhuv2-rx", "arm,primecell";
+			reg = <0x1b830000 0x1000>;
+			clocks = <&refclk100mhz>;
+			clock-names = "apb_pclk";
+			interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
+			#mbox-cells = <2>;
+			arm,mhuv2-protocols = <0 0>;
+			secure-status = "okay";     /* secure-world-only */
+			status = "disabled";
+		};
+	};
+};