armv8: ls1088aqds: Add support of LS1088AQDS

This patch add support of LS1088AQDS platform.

The LS1088A QorIQTM Development System (QDS) is a high-performance
computing, evaluation, and development platform that supports the
LS1088A QorIQ Architecture processor.

Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Signed-off-by: Shaohui Xie <Shaohui.Xie@nxp.com>
Signed-off-by: Ashish Kumar <Ashish.Kumar@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
diff --git a/board/freescale/ls1088a/README b/board/freescale/ls1088a/README
index 3f4d987..aa0fb6a 100644
--- a/board/freescale/ls1088a/README
+++ b/board/freescale/ls1088a/README
@@ -64,3 +64,82 @@
  - JTAG support
  - QSPI emulator support
  - TDM riser support
+
+QDS Default Switch Settings (1: ON; 0: OFF)
+-------------------------------------------
+
+For 16b IFC-NOR
+SW1 0001 0010
+SW2 x110 1111
+
+For QSPI Boot
+SW1 0011 0001
+SW2 0110 1111
+
+For SD Boot
+SW1 0010 0000
+SW2 0110 1111
+
+For eMMC Boot
+SW1 0010 0000
+SW2 1110 1111
+
+For I2C (ext. addr.)
+SW1 0010 0100
+SW2 1110 1111
+
+SW3 to SW12 are identical for all boot source
+
+SW3 0010 0100
+SW4 0010 0000
+SW5 1110 0111
+SW6 1110 1000
+SW7 0001 1101
+SW8 0000 1101
+SW9 1100 1010
+SW10 1110 1000
+SW11 1111 0100
+SW12 1111 1111
+
+ LS1088AQDS board Overview
+ -------------------------
+ - SERDES Connections, 16 lanes supporting:
+      - PCI Express - 3.0
+      - SATA 3.0
+      - 2 XFI
+      - QSGMII, SGMII with help for Riser card
+      - 2 RGMII
+      - 5 slot for Riser card or PCIe NIC
+ - DDR Controller
+     - One ports of 72-bits (8-bits ECC, 64-bits DATA) DDR4. Each port supports four
+       chip-selects on one DIMM connector. Support is up to 2133MT/s, Although MAX default
+       with FSL refernce software is 2100MT/s
+ - 2 QSPI-NOR Spansion(S25FS512SDSMFI011) flash of size 64MB
+ - IFC/Local Bus
+    - One 2 GB NAND flash with ECC support, not as boot source
+    - CPLD of size 2K
+ - 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/eMMC
+    - SDHC/eMMC slot via adaptor
+ - 4 I2C controllers
+ - Two SATA onboard connectors
+ - 2 UART
+ - JTAG support
+ - DSPI
+ - PROMJET support
+ - QSPI emulator support
+ - TDM riser support
+
+QSPI flash memory map valid for both QDS and RDB
+  Image                               Flash Offset
+ RCW+PBI                             0x00000000
+ Boot firmware (U-Boot)              0x00100000
+ Boot firmware Environment           0x00300000
+ PPA firmware                        0x00400000
+ DPAA2 MC                            0x00A00000
+ DPAA2 DPL                           0x00D00000
+ DPAA2 DPC                           0x00E00000
+ Kernel.itb                          0x01000000