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/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";
+	};
+};