armv8/ls2085ardb: Add support of LS2085ARDB platform

The LS2085ARDB is a evaluation platform that supports LS2085A
family SoCs. This patch add sbasic support for the platform.

Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
diff --git a/board/freescale/ls2085ardb/README b/board/freescale/ls2085ardb/README
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+Overview
+--------
+The LS2085A Reference Design (RDB) is a high-performance computing,
+evaluation, and development platform that supports the QorIQ LS2085A
+Layerscape Architecture processor.
+
+LS2085A SoC Overview
+------------------
+The LS2085A integrated multicore processor combines eight ARM Cortex-A57
+processor cores with high-performance data path acceleration logic and network
+and peripheral bus interfaces required for networking, telecom/datacom,
+wireless infrastructure, and mil/aerospace applications.
+
+The LS2085A SoC includes the following function and features:
+
+ - Eight 64-bit ARM Cortex-A57 CPUs
+ - 1 MB platform cache with ECC
+ - Two 64-bit DDR4 SDRAM memory controllers with ECC and interleaving support
+ - One secondary 32-bit DDR4 SDRAM memory controller, intended for use by
+  the AIOP
+ - Data path acceleration architecture (DPAA2) incorporating acceleration for
+ the following functions:
+   - Packet parsing, classification, and distribution (WRIOP)
+   - Queue and Hardware buffer management for scheduling, packet sequencing, and
+     congestion management, buffer allocation and de-allocation (QBMan)
+   - Cryptography acceleration (SEC) at up to 10 Gbps
+   - RegEx pattern matching acceleration (PME) at up to 10 Gbps
+   - Decompression/compression acceleration (DCE) at up to 20 Gbps
+   - Accelerated I/O processing (AIOP) at up to 20 Gbps
+   - QDMA engine
+ - 16 SerDes lanes at up to 10.3125 GHz
+ - Ethernet interfaces
+   - Up to eight 10 Gbps Ethernet MACs
+   - Up to eight 1 / 2.5 Gbps Ethernet MACs
+ - High-speed peripheral interfaces
+   - Four PCIe 3.0 controllers, one supporting SR-IOV
+ - Additional peripheral interfaces
+   - Two serial ATA (SATA 3.0) controllers
+   - Two high-speed USB 3.0 controllers with integrated PHY
+   - Enhanced secure digital host controller (eSDXC/eMMC)
+   - Serial peripheral interface (SPI) controller
+   - Quad Serial Peripheral Interface (QSPI) Controller
+   - Four I2C controllers
+   - Two DUARTs
+   - Integrated flash controller (IFC 2.0) supporting NAND and NOR flash
+ - Support for hardware virtualization and partitioning enforcement
+ - QorIQ platform's trust architecture 3.0
+ - Service processor (SP) provides pre-boot initialization and secure-boot
+  capabilities
+
+ LS2085ARDB board Overview
+ -----------------------
+ - SERDES Connections, 16 lanes supporting:
+      - PCI Express - 3.0
+      - SATA 3.0
+      - XFI
+ - DDR Controller
+     - Two ports of 72-bits (8-bits ECC) DDR4. Each port supports four
+       chip-selects and two DIMM connectors. Support is up to 2133MT/s.
+     - One port of 40-bits (8-bits ECC) DDR4 which supports four chip-selects
+       and two DIMM connectors. Support is up to 1600MT/s.
+ -IFC/Local Bus
+    - IFC rev. 2.0 implementation supporting Little Endian connection scheme.
+    - 128 MB NOR flash 16-bit data bus
+    - One 2 GB NAND flash with ECC support
+    - CPLD connection
+ - USB 3.0
+    - Two high speed USB 3.0 ports
+    - First USB 3.0 port configured as Host with Type-A connector
+    - Second USB 3.0 port configured as OTG with micro-AB connector
+ - SDHC adapter
+    - SD Card Rev 2.0 and Rev 3.0
+ - DSPI
+    - 128 MB high-speed flash Memory for boot code and storage (up to 108MHz)
+ - 4 I2C controllers
+ - Two SATA onboard connectors
+ - UART
+ - ARM JTAG support
+
+Memory map from core's view
+----------------------------
+0x00_0000_0000 .. 0x00_000F_FFFF	Boot Rom
+0x00_0100_0000 .. 0x00_0FFF_FFFF	CCSR
+0x00_1800_0000 .. 0x00_181F_FFFF	OCRAM
+0x00_3000_0000 .. 0x00_3FFF_FFFF	IFC region #1
+0x00_8000_0000 .. 0x00_FFFF_FFFF	DDR region #1
+0x05_1000_0000 .. 0x05_FFFF_FFFF	IFC region #2
+0x80_8000_0000 .. 0xFF_FFFF_FFFF	DDR region #2
+
+Other addresses are either reserved, or not used directly by u-boot.
+This list should be updated when more addresses are used.
+
+IFC region map from core's view
+-------------------------------
+During boot i.e. IFC Region #1:-
+  0x30000000 - 0x37ffffff : 128MB : NOR flash
+  0x3C000000 - 0x40000000 : 64MB  : CPLD
+
+After relocate to DDR i.e. IFC Region #2:-
+  0x5_1000_0000..0x5_1fff_ffff	Memory Hole
+  0x5_2000_0000..0x5_3fff_ffff	IFC CSx (CPLD, NAND and others 512MB)
+  0x5_4000_0000..0x5_7fff_ffff	ASIC or others 1GB
+  0x5_8000_0000..0x5_bfff_ffff	IFC CS0 1GB (NOR/Promjet)
+  0x5_C000_0000..0x5_ffff_ffff	IFC CS1 1GB (NOR/Promjet)
+
+Booting Options
+---------------
+a) NOR boot
+b) NAND boot