diff --git a/doc/README.b4860qds b/doc/README.b4860qds
deleted file mode 100644
index 889c8a9..0000000
--- a/doc/README.b4860qds
+++ /dev/null
@@ -1,366 +0,0 @@
-Overview
---------
-The B4860QDS is a Freescale reference board that hosts the B4860 SoC (and variants).
-
-B4860 Overview
--------------
-The B4860 QorIQ Qonverge device is a Freescale high-end, multicore SoC based on
-StarCore and Power Architecture® cores. It targets the broadband wireless
-infrastructure and builds upon the proven success of the existing multicore
-DSPs and Power CPUs. It is designed to bolster the rapidly changing and
-expanding wireless markets, such as 3GLTE (FDD and TDD), LTE-Advanced, and UMTS.
-
-The B4860 is a highly-integrated StarCore and Power Architecture processor that
-contains:
-. Six fully-programmable StarCore SC3900 FVP subsystems, divided into three
-clusters-each core runs up to 1.2 GHz, with an architecture highly optimized for
-wireless base station applications
-. Four dual-thread e6500 Power Architecture processors organized in one cluster-each
-core runs up to 1.8 GHz
-. Two DDR3/3L controllers for high-speed, industry-standard memory interface each
-runs at up to 1866.67 MHz
-. MAPLE-B3 hardware acceleration-for forward error correction schemes including
-Turbo or Viterbi decoding, Turbo encoding and rate matching, MIMO MMSE
-equalization scheme, matrix operations, CRC insertion and check, DFT/iDFT and
-FFT/iFFT calculations, PUSCH/PDSCH acceleration, and UMTS chip rate
-acceleration
-. CoreNet fabric that fully supports coherency using MESI protocol between the
-  e6500 cores, SC3900 FVP cores, memories and external interfaces.
-  CoreNet fabric interconnect runs at 667 MHz and supports coherent and
-  non-coherent out of order transactions with prioritization and bandwidth
-  allocation amongst CoreNet endpoints.
-. Data Path Acceleration Architecture, which includes the following:
-. Frame Manager (FMan), which supports in-line packet parsing and general
-  classification to enable policing and QoS-based packet distribution
-. Queue Manager (QMan) and Buffer Manager (BMan), which allow offloading
-  of queue management, task management, load distribution, flow ordering, buffer
-  management, and allocation tasks from the cores
-. Security engine (SEC 5.3)-crypto-acceleration for protocols such as IPsec,
-  SSL, and 802.16
-. RapidIO manager (RMAN) - Support SRIO types 8, 9, 10, and 11 (inbound and
-  outbound). Supports types 5, 6 (outbound only)
-. Large internal cache memory with snooping and stashing capabilities for
-  bandwidth saving and high utilization of processor elements. The 9856-Kbyte
-  internal memory space includes the following:
-. 32 Kbyte L1 ICache per e6500/SC3900 core
-. 32 Kbyte L1 DCache per e6500/SC3900 core
-. 2048 Kbyte unified L2 cache for each SC3900 FVP cluster
-. 2048 Kbyte unified L2 cache for the e6500 cluster
-. Two 512 Kbyte shared L3 CoreNet platform caches (CPC)
-. Sixteen 10-GHz SerDes lanes serving:
-. Two Serial RapidIO interfaces.
-	- Each supports up to 4 lanes and a total of up to 8 lanes
-. Up to 8-lanes Common Public Radio Interface (CPRI) controller for glue-less
-  antenna connection
-. Two 10-Gbit Ethernet controllers (10GEC)
-. Six 1G/2.5-Gbit Ethernet controllers for network communications
-. PCI Express controller
-. Debug (Aurora)
-. Two OCeaN DMAs
-. Various system peripherals
-. 182 32-bit timers
-
-B4860QDS Overview
-------------------
-- DDRC1: Ten separate DDR3 parts of 16-bit to support 72-bit (ECC) at 1866MT/s, ECC, 4 GB
-  of memory in two ranks of 2 GB.
-- DDRC2: Five separate DDR3 parts of 16-bit to support 72-bit (ECC) at 1866MT/s, ECC, 2 GB
-  of memory. Single rank.
-- SerDes 1 multiplexing: Two Vitesse (transmit and receive path) cross-point 16x16 switch
-  VSC3316
-- SerDes 2 multiplexing: Two Vitesse (transmit and receive path) cross-point 8x8 switch VSC3308
-- USB 2.0 ULPI PHY USB3315 by SMSC supports USB port in host mode.
-  B4860 UART port is available over USB-to-UART translator USB2SER or over RS232 flat cable.
-- A Vitesse dual SGMII phy VSC8662 links the B4860 SGMII lines to 2xRJ-45 copper connectors
-  for Stand-alone mode and to the 1000Base-X over AMC MicroTCA connector ports 0 and 2 for
-  AMC mode.
-- The B4860 configuration may be loaded from nine bits coded reset configuration reset source. The
-  RCW source is set by appropriate DIP-switches:
-- 16-bit NOR Flash / PROMJet
-- QIXIS 8-bit NOR Flash Emulator
-- 8-bit NAND Flash
-- 24-bit SPI Flash
-- Long address I2C EEPROM
-- Available debug interfaces are:
-	- On-board eCWTAP controller with ETH and USB I/F
-	- JTAG/COP 16-pin header for any external TAP controller
-	- External JTAG source over AMC to support B2B configuration
-	- 70-pin Aurora debug connector
-- QIXIS (FPGA) logic:
-	- 2 KB internal memory space including
-- IDT840NT4 clock synthesizer provides B4860 essential clocks : SYSCLK, DDRCLK1,2 and
-  RTCCLK.
-- Two 8T49N222A SerDes ref clock devices support two SerDes port clock frequency - total four
-  refclk, including CPRI clock scheme.
-
-B4420 Personality
---------------------
-
-B4420 Personality
---------------------
-B4420 is a reduced personality of B4860 with less core/clusters(both SC3900 and e6500), less DDR
-controllers, less serdes lanes, less SGMII interfaces and reduced target frequencies.
-
-Key differences between B4860 and B4420
-----------------------------------------
-
-B4420 has:
-1. Less e6500 cores: 1 cluster with 2 e6500 cores
-2. Less SC3900 cores/clusters: 1 cluster with 2 SC3900 cores per cluster.
-3. Single DDRC
-4. 2X 4 lane serdes
-5. 3 SGMII interfaces
-6. no sRIO
-7. no 10G
-
-B4860QDS Default Settings
--------------------------
-
-Switch Settings
-----------------
-
-SW1	OFF [0]	OFF [0]	OFF [0]	OFF [0]	OFF [0]	OFF [0]	OFF [0]	OFF [0]
-SW2	ON	ON	ON	ON	ON	ON	OFF	OFF
-SW3	OFF	OFF	OFF	ON	OFF	OFF	ON	OFF
-SW5	OFF	OFF	OFF	OFF	OFF	OFF	ON	ON
-
-Note: PCIe slots modes: All the PCIe devices work as Root Complex.
-Note: Boot location: NOR flash.
-
-SysClk/Core(e6500)/CCB/DDR/FMan/DDRCLK/StarCore/CPRI-Maple/eTVPE-Maple/ULB-Maple
-66MHz/1.6GHz/667MHz/1.6GHz data rate/667MHz/133MHz/1200MHz/500MHz/800MHz/667MHz
-
-a) NAND boot
-	SW1 [1.1] = 0
-	SW2 [1.1] = 1
-	SW3 [1:4] = 0001
-b) NOR boot
-	SW1 [1.1] = 1
-	SW2 [1.1] = 0
-	SW3 [1:4] = 1000.
-
-B4420QDS Default Settings
--------------------------
-
-Switch Settings
-----------------
-SW1	OFF[0]	OFF [0]	OFF [0]	OFF [0]	OFF [0]	OFF [0]	OFF [0]	OFF [0]
-SW2	ON	OFF	ON	OFF	ON	ON	OFF	OFF
-SW3	OFF	OFF	OFF	ON	OFF	OFF	ON	OFF
-SW5	OFF	OFF	OFF	OFF	OFF	OFF	ON	ON
-
-Note: PCIe slots modes: All the PCIe devices work as Root Complex.
-Note: Boot location: NOR flash.
-
-SysClk/Core(e6500)/CCB/DDR/FMan/DDRCLK/StarCore/CPRI-Maple/eTVPE-Maple/ULB-Maple
-66MHz/1.6GHz/667MHz/1.6GHz data rate/667MHz/133MHz/1200MHz/500MHz/800MHz/667MHz
-
-a) NAND boot
-	SW1 [1.1] = 0
-	SW2 [1.1] = 1
-	SW3 [1:4] = 0001
-b) NOR boot
-	SW1 [1.1] = 1
-	SW2 [1.1] = 0
-	SW3 [1:4] = 1000.
-
-Memory map on B4860QDS
-----------------------
-The addresses in brackets are physical addresses.
-
-Start Address	End Address	Description	Size
-0xF_FFDF_1000 	0xF_FFFF_FFFF	Free		2 MB
-0xF_FFDF_0000 	0xF_FFDF_0FFF	IFC - FPGA 	4 KB
-0xF_FF81_0000 	0xF_FFDE_FFFF	Free		5 MB
-0xF_FF80_0000	0xF_FF80_FFFF	IFC NAND Flash	64 KB
-0xF_FF00_0000	0xF_FF7F_FFFF	Free		8 MB
-0xF_FE00_0000 	0xF_FEFF_FFFF	CCSRBAR		16 MB
-0xF_F801_0000 	0xF_FDFF_FFFF	Free		95 MB
-0xF_F800_0000	0xF_F800_FFFF	PCIe I/O Space 	64 KB
-0xF_F600_0000 	0xF_F7FF_FFFF	QMAN s/w portal	32 MB
-0xF_F400_0000 	0xF_F5FF_FFFF	BMAN s/w portal	32 MB
-0xF_F000_0000 	0xF_F3FF_FFFF	Free		64 MB
-0xF_E800_0000 	0xF_EFFF_FFFF	IFC  NOR Flash 	128 MB
-0xF_E000_0000	0xF_E7FF_FFFF	Promjet		128 MB
-0xF_A0C0_0000 	0xF_DFFF_FFFF	Free		1012 MB
-0xF_A000_0000 	0xF_A0BF_FFFF	MAPLE0/1/2	12 MB
-0xF_0040_0000 	0xF_9FFF_FFFF	Free		12 GB
-0xF_0000_0000 	0xF_01FF_FFFF	DCSR		32 MB
-0xC_4000_0000 	0xE_FFFF_FFFF	Free		11 GB
-0xC_3000_0000 	0xC_3FFF_FFFF	sRIO-2 I/O 	256 MB
-0xC_2000_0000 	0xC_2FFF_FFFF	sRIO-1 I/O  	256 MB
-0xC_0000_0000	0xC_1FFF_FFFF	PCIe Mem Space 	512 MB
-0x1_0000_0000 	0xB_FFFF_FFFF	Free		44 GB
-0x0_8000_0000 	0x0_FFFF_FFFF	DDRC1		2 GB
-0x0_0000_0000 	0x0_7FFF_FFFF	DDRC2	  	2 GB
-
-Memory map on B4420QDS
-----------------------
-The addresses in brackets are physical addresses.
-
-Start Address	End Address	Description	Size
-0xF_FFDF_1000 	0xF_FFFF_FFFF	Free		2 MB
-0xF_FFDF_0000 	0xF_FFDF_0FFF	IFC - FPGA 	4 KB
-0xF_FF81_0000 	0xF_FFDE_FFFF	Free		5 MB
-0xF_FF80_0000	0xF_FF80_FFFF	IFC NAND Flash	64 KB
-0xF_FF00_0000	0xF_FF7F_FFFF	Free		8 MB
-0xF_FE00_0000 	0xF_FEFF_FFFF	CCSRBAR		16 MB
-0xF_F801_0000 	0xF_FDFF_FFFF	Free		95 MB
-0xF_F800_0000	0xF_F800_FFFF	PCIe I/O Space 	64 KB
-0xF_F600_0000 	0xF_F7FF_FFFF	QMAN s/w portal	32 MB
-0xF_F400_0000 	0xF_F5FF_FFFF	BMAN s/w portal	32 MB
-0xF_F000_0000 	0xF_F3FF_FFFF	Free		64 MB
-0xF_E800_0000 	0xF_EFFF_FFFF	IFC  NOR Flash 	128 MB
-0xF_E000_0000	0xF_E7FF_FFFF	Promjet		128 MB
-0xF_A0C0_0000 	0xF_DFFF_FFFF	Free		1012 MB
-0xF_A000_0000 	0xF_A0BF_FFFF	MAPLE0/1/2	12 MB
-0xF_0040_0000 	0xF_9FFF_FFFF	Free		12 GB
-0xF_0000_0000 	0xF_01FF_FFFF	DCSR		32 MB
-0xC_4000_0000 	0xE_FFFF_FFFF	Free		11 GB
-0xC_3000_0000 	0xC_3FFF_FFFF	sRIO-2 I/O 	256 MB
-0xC_2000_0000 	0xC_2FFF_FFFF	sRIO-1 I/O  	256 MB
-0xC_0000_0000	0xC_1FFF_FFFF	PCIe Mem Space 	512 MB
-0x1_0000_0000 	0xB_FFFF_FFFF	Free		44 GB
-0x0_0000_0000 	0x0_FFFF_FFFF	DDRC1		4 GB
-
-
-NOR Flash memory Map on B4860 and B4420QDS
-------------------------------------------
- Start		 End		Definition			Size
-0xEFF40000	0xEFFFFFFF	U-Boot (current bank)		768KB
-0xEFF20000	0xEFF3FFFF	U-Boot env (current bank)	128KB
-0xEFF00000	0xEFF1FFFF	FMAN Ucode (current bank)	128KB
-0xEF300000	0xEFEFFFFF	rootfs (alternate bank)		12MB
-0xEE800000	0xEE8FFFFF	device tree (alternate bank)	1MB
-0xEE020000	0xEE6FFFFF	Linux.uImage (alternate bank)	6MB+896KB
-0xEE000000	0xEE01FFFF	RCW (alternate bank)		128KB
-0xEDF40000	0xEDFFFFFF	U-Boot (alternate bank)		768KB
-0xEDF20000	0xEDF3FFFF	U-Boot env (alternate bank)	128KB
-0xEDF00000	0xEDF1FFFF	FMAN ucode (alternate bank)	128KB
-0xED300000	0xEDEFFFFF	rootfs (current bank)		12MB
-0xEC800000	0xEC8FFFFF	device tree (current bank)	1MB
-0xEC020000	0xEC6FFFFF	Linux.uImage (current bank)	6MB+896KB
-0xEC000000	0xEC01FFFF	RCW (current bank)		128KB
-
-Various Software configurations/environment variables/commands
---------------------------------------------------------------
-The below commands apply to both B4860QDS and B4420QDS.
-
-1. U-Boot environment variable hwconfig
-   The default hwconfig is:
-	hwconfig=fsl_ddr:ctlr_intlv=null,bank_intlv=cs0_cs1;usb1:
-					dr_mode=host,phy_type=ulpi
-   Note: For USB gadget set "dr_mode=peripheral"
-
-2. FMAN Ucode versions
-   fsl_fman_ucode_B4860_106_3_6.bin
-
-3. Switching to alternate bank
-   Commands for switching to alternate bank.
-
-	1. To change from vbank0 to vbank2
-		=> qixis_reset altbank (it will boot using vbank2)
-
-	2.To change from vbank2 to vbank0
-		=> qixis reset (it will boot using vbank0)
-
-4. To change personality of board
-   For changing personality from B4860 to B4420
-	1)Boot from vbank0
-	2)Flash vbank2 with b4420 rcw and U-Boot
-	3)Give following commands to uboot prompt
-	   => mw.b ffdf0040 0x30;
-	   => mw.b ffdf0010 0x00;
-	   => mw.b ffdf0062 0x02;
-	   => mw.b ffdf0050 0x02;
-	   => mw.b ffdf0010 0x30;
-	   => reset
-
-   Note: Power off cycle will lead to default switch settings.
-   Note: 0xffdf0000 is the address of the QIXIS FPGA.
-
-5. Switching between NOR and NAND boot(RCW src changed from NOR <-> NAND)
-
-   To change from NOR to NAND boot give following command on uboot prompt
-	=> mw.b ffdf0040 0x30
-	=> mw.b ffdf0010 0x00
-	=> mw.b 0xffdf0050 0x08
-	=> mw.b 0xffdf0060 0x82
-	=> mw.b ffdf0061 0x00
-	=> mw.b ffdf0010 0x30
-	=> reset
-
-   To change from NAND to NOR boot give following command on uboot prompt:
-	=> mw.b ffdf0040 0x30
-	=> mw.b ffdf0010 0x00
-	=> mw.b 0xffdf0050 0x00(for vbank0) or (mw.b 0xffdf0050 0x02 for vbank2)
-	=> mw.b 0xffdf0060 0x12
-	=> mw.b ffdf0061 0x01
-	=> mw.b ffdf0010 0x30
-	=> reset
-
-   Note: Power off cycle will lead to default switch settings.
-   Note: 0xffdf0000 is the address of the QIXIS FPGA.
-
-6.  Ethernet interfaces for B4860QDS
-   Serdes protocosl tested:
-   0x2a, 0x8d (serdes1, serdes2) [DEFAULT]
-   0x2a, 0xb2 (serdes1, serdes2)
-
-   When using [DEFAULT] RCW, which including 2 * 1G SGMII on board and 2 * 1G
-   SGMII on SGMII riser card.
-   Under U-Boot these network interfaces are recognized as:
-   FM1@DTSEC3, FM1@DTSEC4, FM1@DTSEC5 and FM1@DTSEC6.
-
-   On Linux the interfaces are renamed as:
-	. eth2 -> fm1-gb2
-	. eth3 -> fm1-gb3
-	. eth4 -> fm1-gb4
-	. eth5 -> fm1-gb5
-
-7. RCW and Ethernet interfaces for B4420QDS
-   Serdes protocosl tested:
-   0x18, 0x9e (serdes1, serdes2)
-
-   Under U-Boot these network interfaces are recognized as:
-   FM1@DTSEC3, FM1@DTSEC4 and  e1000#0.
-
-   On Linux the interfaces are renamed as:
-	. eth2 -> fm1-gb2
-	. eth3 -> fm1-gb3
-
-NAND boot with 2 Stage boot loader
-----------------------------------
-PBL initialise the internal SRAM and copy SPL(160KB) in SRAM.
-SPL further initialise DDR using SPD and environment variables and copy
-U-Boot(768 KB) from flash to DDR.
-Finally SPL transer control to U-Boot for futher booting.
-
-SPL has following features:
- - Executes within 256K
- - No relocation required
-
- Run time view of SPL framework during  boot :-
- -----------------------------------------------
- Area        | Address                         |
------------------------------------------------
- Secure boot | 0xFFFC0000 (32KB)               |
- headers     |                                 |
- -----------------------------------------------
- GD, BD      | 0xFFFC8000 (4KB)                |
- -----------------------------------------------
- ENV         | 0xFFFC9000 (8KB)                |
- -----------------------------------------------
- HEAP        | 0xFFFCB000 (30KB)               |
- -----------------------------------------------
- STACK       | 0xFFFD8000 (22KB)               |
- -----------------------------------------------
- U-Boot SPL  | 0xFFFD8000 (160KB)              |
- -----------------------------------------------
-
-NAND Flash memory Map on B4860 and B4420QDS
-------------------------------------------
- Start		 End		Definition			Size
-0x000000	0x0FFFFF	U-Boot                          1MB
-0x140000	0x15FFFF	U-Boot env                      128KB
-0x1A0000	0x1BFFFF	FMAN Ucode                      128KB
diff --git a/doc/board/freescale/b4860qds.rst b/doc/board/freescale/b4860qds.rst
new file mode 100644
index 0000000..37d7d08
--- /dev/null
+++ b/doc/board/freescale/b4860qds.rst
@@ -0,0 +1,453 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+B4860QDS
+========
+
+The B4860QDS is a Freescale reference board that hosts the B4860 SoC
+(and variants).
+
+B4860 Overview
+--------------
+The B4860 QorIQ Qonverge device is a Freescale high-end, multicore SoC based on
+StarCore and Power Architecture® cores. It targets the broadband wireless
+infrastructure and builds upon the proven success of the existing multicore
+DSPs and Power CPUs. It is designed to bolster the rapidly changing and
+expanding wireless markets, such as 3GLTE (FDD and TDD), LTE-Advanced, and UMTS.
+
+The B4860 is a highly-integrated StarCore and Power Architecture processor that
+contains:
+
+* Six fully-programmable StarCore SC3900 FVP subsystems, divided into three
+  clusters-each core runs up to 1.2 GHz, with an architecture highly optimized
+  for wireless base station applications
+* Four dual-thread e6500 Power Architecture processors organized in one
+  cluster-each core runs up to 1.8 GHz
+* Two DDR3/3L controllers for high-speed, industry-standard memory interface
+  each runs at up to 1866.67 MHz
+* MAPLE-B3 hardware acceleration-for forward error correction schemes including
+  Turbo or Viterbi decoding, Turbo encoding and rate matching, MIMO MMSE
+  equalization scheme, matrix operations, CRC insertion and check, DFT/iDFT and
+  FFT/iFFT calculations, PUSCH/PDSCH acceleration, and UMTS chip rate
+  acceleration
+* CoreNet fabric that fully supports coherency using MESI protocol between the
+  e6500 cores, SC3900 FVP cores, memories and external interfaces.
+  CoreNet fabric interconnect runs at 667 MHz and supports coherent and
+  non-coherent out of order transactions with prioritization and bandwidth
+  allocation amongst CoreNet endpoints.
+* Data Path Acceleration Architecture, which includes the following:
+
+     * Frame Manager (FMan), which supports in-line packet parsing and general
+       classification to enable policing and QoS-based packet distribution
+     * Queue Manager (QMan) and Buffer Manager (BMan), which allow offloading
+       of queue management, task management, load distribution, flow ordering,
+       buffer management, and allocation tasks from the cores
+     * Security engine (SEC 5.3)-crypto-acceleration for protocols such as
+       IPsec, SSL, and 802.16
+     * RapidIO manager (RMAN) - Support SRIO types 8, 9, 10, and 11 (inbound
+       and outbound). Supports types 5, 6 (outbound only)
+
+* Large internal cache memory with snooping and stashing capabilities for
+  bandwidth saving and high utilization of processor elements. The 9856-Kbyte
+  internal memory space includes the following:
+
+     * 32 Kbyte L1 ICache per e6500/SC3900 core
+     * 32 Kbyte L1 DCache per e6500/SC3900 core
+     * 2048 Kbyte unified L2 cache for each SC3900 FVP cluster
+     * 2048 Kbyte unified L2 cache for the e6500 cluster
+     * Two 512 Kbyte shared L3 CoreNet platform caches (CPC)
+
+* Sixteen 10-GHz SerDes lanes serving:
+
+     * Two Serial RapidIO interfaces
+     * Each supports up to 4 lanes and a total of up to 8 lanes
+
+* Up to 8-lanes Common Public Radio Interface (CPRI) controller for
+  glue-less antenna connection
+* Two 10-Gbit Ethernet controllers (10GEC)
+* Six 1G/2.5-Gbit Ethernet controllers for network communications
+* PCI Express controller
+* Debug (Aurora)
+* Two OCeaN DMAs
+* Various system peripherals
+* 182 32-bit timers
+
+B4860QDS Overview
+-----------------
+- DDRC1: Ten separate DDR3 parts of 16-bit to support 72-bit (ECC) at 1866MT/s,
+  ECC, 4 GB of memory in two ranks of 2 GB.
+- DDRC2: Five separate DDR3 parts of 16-bit to support 72-bit (ECC) at 1866MT/s,
+  ECC, 2 GB of memory. Single rank.
+- SerDes 1 multiplexing: Two Vitesse (transmit and receive path) cross-point
+  16x16 switch VSC3316
+- SerDes 2 multiplexing: Two Vitesse (transmit and receive path) cross-point
+  8x8 switch VSC3308
+- USB 2.0 ULPI PHY USB3315 by SMSC supports USB port in host mode.
+  B4860 UART port is available over USB-to-UART translator USB2SER or over
+  RS232 flat cable.
+- A Vitesse dual SGMII phy VSC8662 links the B4860 SGMII lines to 2xRJ-45
+  copper connectors for Stand-alone mode and to the 1000Base-X over AMC
+  MicroTCA connector ports 0 and 2 for AMC mode.
+- The B4860 configuration may be loaded from nine bits coded reset configuration
+  reset source. The RCW source is set by appropriate DIP-switches.
+- 16-bit NOR Flash / PROMJet
+- QIXIS 8-bit NOR Flash Emulator
+- 8-bit NAND Flash
+- 24-bit SPI Flash
+- Long address I2C EEPROM
+- Available debug interfaces are:
+
+     - On-board eCWTAP controller with ETH and USB I/F
+     - JTAG/COP 16-pin header for any external TAP controller
+     - External JTAG source over AMC to support B2B configuration
+     - 70-pin Aurora debug connector
+
+- QIXIS (FPGA) logic:
+     - 2 KB internal memory space including
+
+- IDT840NT4 clock synthesizer provides B4860 essential clocks : SYSCLK,
+  DDRCLK1,2 and RTCCLK.
+- Two 8T49N222A SerDes ref clock devices support two SerDes port clock
+  frequency - total four refclk, including CPRI clock scheme.
+
+
+B4420 Personality
+-----------------
+
+B4420 is a reduced personality of B4860 with less core/clusters(both SC3900
+and e6500), less DDR controllers, less serdes lanes, less SGMII interfaces
+and reduced target frequencies.
+
+Key differences between B4860 and B4420
+---------------------------------------
+
+B4420 has:
+
+1. Less e6500 cores: 1 cluster with 2 e6500 cores
+2. Less SC3900 cores/clusters: 1 cluster with 2 SC3900 cores per cluster
+3. Single DDRC
+4. 2X 4 lane serdes
+5. 3 SGMII interfaces
+6. no sRIO
+7. no 10G
+
+B4860QDS Default Settings
+-------------------------
+
+Switch Settings
+---------------
+
+.. code-block:: none
+
+   SW1	OFF [0]	OFF [0]	OFF [0]	OFF [0]	OFF [0]	OFF [0]	OFF [0]	OFF [0]
+   SW2	ON	ON	ON	ON	ON	ON	OFF	OFF
+   SW3	OFF	OFF	OFF	ON	OFF	OFF	ON	OFF
+   SW5	OFF	OFF	OFF	OFF	OFF	OFF	ON	ON
+
+Note:
+
+- PCIe slots modes: All the PCIe devices work as Root Complex.
+- Boot location: NOR flash.
+
+SysClk/Core(e6500)/CCB/DDR/FMan/DDRCLK/StarCore/CPRI-Maple/eTVPE-Maple/ULB-Maple
+66MHz/1.6GHz/667MHz/1.6GHz data rate/667MHz/133MHz/1200MHz/500MHz/800MHz/667MHz
+
+NAND boot::
+
+	SW1 [1.1] = 0
+	SW2 [1.1] = 1
+	SW3 [1:4] = 0001
+
+NOR boot::
+
+	SW1 [1.1] = 1
+	SW2 [1.1] = 0
+	SW3 [1:4] = 1000
+
+B4420QDS Default Settings
+-------------------------
+
+Switch Settings
+---------------
+
+.. code-block:: none
+
+   SW1	OFF[0]	OFF [0]	OFF [0]	OFF [0]	OFF [0]	OFF [0]	OFF [0]	OFF [0]
+   SW2	ON	OFF	ON	OFF	ON	ON	OFF	OFF
+   SW3	OFF	OFF	OFF	ON	OFF	OFF	ON	OFF
+   SW5	OFF	OFF	OFF	OFF	OFF	OFF	ON	ON
+
+Note:
+
+- PCIe slots modes: All the PCIe devices work as Root Complex.
+- Boot location: NOR flash.
+
+SysClk/Core(e6500)/CCB/DDR/FMan/DDRCLK/StarCore/CPRI-Maple/eTVPE-Maple/ULB-Maple
+66MHz/1.6GHz/667MHz/1.6GHz data rate/667MHz/133MHz/1200MHz/500MHz/800MHz/667MHz
+
+NAND boot::
+
+	SW1 [1.1] = 0
+	SW2 [1.1] = 1
+	SW3 [1:4] = 0001
+
+NOR boot::
+
+	SW1 [1.1] = 1
+	SW2 [1.1] = 0
+	SW3 [1:4] = 1000
+
+Memory map on B4860QDS
+----------------------
+The addresses in brackets are physical addresses.
+
+=============   =============   =============== =======
+Start Address	End Address	Description	Size
+=============   =============   =============== =======
+0xF_FFDF_1000 	0xF_FFFF_FFFF	Free		2 MB
+0xF_FFDF_0000 	0xF_FFDF_0FFF	IFC - FPGA 	4 KB
+0xF_FF81_0000 	0xF_FFDE_FFFF	Free		5 MB
+0xF_FF80_0000	0xF_FF80_FFFF	IFC NAND Flash	64 KB
+0xF_FF00_0000	0xF_FF7F_FFFF	Free		8 MB
+0xF_FE00_0000 	0xF_FEFF_FFFF	CCSRBAR		16 MB
+0xF_F801_0000 	0xF_FDFF_FFFF	Free		95 MB
+0xF_F800_0000	0xF_F800_FFFF	PCIe I/O Space 	64 KB
+0xF_F600_0000 	0xF_F7FF_FFFF	QMAN s/w portal	32 MB
+0xF_F400_0000 	0xF_F5FF_FFFF	BMAN s/w portal	32 MB
+0xF_F000_0000 	0xF_F3FF_FFFF	Free		64 MB
+0xF_E800_0000 	0xF_EFFF_FFFF	IFC  NOR Flash 	128 MB
+0xF_E000_0000	0xF_E7FF_FFFF	Promjet		128 MB
+0xF_A0C0_0000 	0xF_DFFF_FFFF	Free		1012 MB
+0xF_A000_0000 	0xF_A0BF_FFFF	MAPLE0/1/2	12 MB
+0xF_0040_0000 	0xF_9FFF_FFFF	Free		12 GB
+0xF_0000_0000 	0xF_01FF_FFFF	DCSR		32 MB
+0xC_4000_0000 	0xE_FFFF_FFFF	Free		11 GB
+0xC_3000_0000 	0xC_3FFF_FFFF	sRIO-2 I/O 	256 MB
+0xC_2000_0000 	0xC_2FFF_FFFF	sRIO-1 I/O  	256 MB
+0xC_0000_0000	0xC_1FFF_FFFF	PCIe Mem Space 	512 MB
+0x1_0000_0000 	0xB_FFFF_FFFF	Free		44 GB
+0x0_8000_0000 	0x0_FFFF_FFFF	DDRC1		2 GB
+0x0_0000_0000 	0x0_7FFF_FFFF	DDRC2	  	2 GB
+=============   =============   =============== =======
+
+Memory map on B4420QDS
+----------------------
+The addresses in brackets are physical addresses.
+
+=============   =============   =============== =======
+Start Address	End Address	Description	Size
+=============   =============   =============== =======
+0xF_FFDF_1000 	0xF_FFFF_FFFF	Free		2 MB
+0xF_FFDF_0000 	0xF_FFDF_0FFF	IFC - FPGA 	4 KB
+0xF_FF81_0000 	0xF_FFDE_FFFF	Free		5 MB
+0xF_FF80_0000	0xF_FF80_FFFF	IFC NAND Flash	64 KB
+0xF_FF00_0000	0xF_FF7F_FFFF	Free		8 MB
+0xF_FE00_0000 	0xF_FEFF_FFFF	CCSRBAR		16 MB
+0xF_F801_0000 	0xF_FDFF_FFFF	Free		95 MB
+0xF_F800_0000	0xF_F800_FFFF	PCIe I/O Space 	64 KB
+0xF_F600_0000 	0xF_F7FF_FFFF	QMAN s/w portal	32 MB
+0xF_F400_0000 	0xF_F5FF_FFFF	BMAN s/w portal	32 MB
+0xF_F000_0000 	0xF_F3FF_FFFF	Free		64 MB
+0xF_E800_0000 	0xF_EFFF_FFFF	IFC  NOR Flash 	128 MB
+0xF_E000_0000	0xF_E7FF_FFFF	Promjet		128 MB
+0xF_A0C0_0000 	0xF_DFFF_FFFF	Free		1012 MB
+0xF_A000_0000 	0xF_A0BF_FFFF	MAPLE0/1/2	12 MB
+0xF_0040_0000 	0xF_9FFF_FFFF	Free		12 GB
+0xF_0000_0000 	0xF_01FF_FFFF	DCSR		32 MB
+0xC_4000_0000 	0xE_FFFF_FFFF	Free		11 GB
+0xC_3000_0000 	0xC_3FFF_FFFF	sRIO-2 I/O 	256 MB
+0xC_2000_0000 	0xC_2FFF_FFFF	sRIO-1 I/O  	256 MB
+0xC_0000_0000	0xC_1FFF_FFFF	PCIe Mem Space 	512 MB
+0x1_0000_0000 	0xB_FFFF_FFFF	Free		44 GB
+0x0_0000_0000 	0x0_FFFF_FFFF	DDRC1		4 GB
+=============   =============   =============== =======
+
+NOR Flash memory Map on B4860 and B4420QDS
+------------------------------------------
+
+=============   =============   ==============================  =========
+ Start		 End		Definition			Size
+=============   =============   ==============================  =========
+0xEFF40000	0xEFFFFFFF	U-Boot (current bank)		768KB
+0xEFF20000	0xEFF3FFFF	U-Boot env (current bank)	128KB
+0xEFF00000	0xEFF1FFFF	FMAN Ucode (current bank)	128KB
+0xEF300000	0xEFEFFFFF	rootfs (alternate bank)		12MB
+0xEE800000	0xEE8FFFFF	device tree (alternate bank)	1MB
+0xEE020000	0xEE6FFFFF	Linux.uImage (alternate bank)	6MB+896KB
+0xEE000000	0xEE01FFFF	RCW (alternate bank)		128KB
+0xEDF40000	0xEDFFFFFF	U-Boot (alternate bank)		768KB
+0xEDF20000	0xEDF3FFFF	U-Boot env (alternate bank)	128KB
+0xEDF00000	0xEDF1FFFF	FMAN ucode (alternate bank)	128KB
+0xED300000	0xEDEFFFFF	rootfs (current bank)		12MB
+0xEC800000	0xEC8FFFFF	device tree (current bank)	1MB
+0xEC020000	0xEC6FFFFF	Linux.uImage (current bank)	6MB+896KB
+0xEC000000	0xEC01FFFF	RCW (current bank)		128KB
+=============   =============   ==============================  =========
+
+Various Software configurations/environment variables/commands
+--------------------------------------------------------------
+The below commands apply to both B4860QDS and B4420QDS.
+
+U-Boot environment variable hwconfig
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The default hwconfig is:
+
+.. code-block:: none
+
+   hwconfig=fsl_ddr:ctlr_intlv=null,bank_intlv=cs0_cs1;usb1:dr_mode=host,phy_type=ulpi
+
+Note: For USB gadget set "dr_mode=peripheral"
+
+FMAN Ucode versions
+^^^^^^^^^^^^^^^^^^^
+
+fsl_fman_ucode_B4860_106_3_6.bin
+
+Switching to alternate bank
+^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Commands for switching to alternate bank.
+
+1. To change from vbank0 to vbank2
+
+.. code-block:: none
+
+   => qixis_reset altbank (it will boot using vbank2)
+
+2. To change from vbank2 to vbank0
+
+.. code-block:: none
+
+   => qixis reset (it will boot using vbank0)
+
+To change personality of board
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+For changing personality from B4860 to B4420
+
+1. Boot from vbank0
+2. Flash vbank2 with b4420 rcw and U-Boot
+3. Give following commands to uboot prompt
+
+.. code-block:: none
+
+   => mw.b ffdf0040 0x30;
+   => mw.b ffdf0010 0x00;
+   => mw.b ffdf0062 0x02;
+   => mw.b ffdf0050 0x02;
+   => mw.b ffdf0010 0x30;
+   => reset
+
+Note:
+
+- Power off cycle will lead to default switch settings.
+- 0xffdf0000 is the address of the QIXIS FPGA.
+
+Switching between NOR and NAND boot(RCW src changed from NOR <-> NAND)
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+To change from NOR to NAND boot give following command on uboot prompt
+
+.. code-block:: none
+
+   => mw.b ffdf0040 0x30
+   => mw.b ffdf0010 0x00
+   => mw.b 0xffdf0050 0x08
+   => mw.b 0xffdf0060 0x82
+   => mw.b ffdf0061 0x00
+   => mw.b ffdf0010 0x30
+   => reset
+
+To change from NAND to NOR boot give following command on uboot prompt:
+
+.. code-block:: none
+
+   => mw.b ffdf0040 0x30
+   => mw.b ffdf0010 0x00
+   => mw.b 0xffdf0050 0x00(for vbank0) or (mw.b 0xffdf0050 0x02 for vbank2)
+   => mw.b 0xffdf0060 0x12
+   => mw.b ffdf0061 0x01
+   => mw.b ffdf0010 0x30
+   => reset
+
+Note:
+
+- Power off cycle will lead to default switch settings.
+- 0xffdf0000 is the address of the QIXIS FPGA.
+
+Ethernet interfaces for B4860QDS
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Serdes protocosl tested:
+* 0x2a, 0x8d (serdes1, serdes2) [DEFAULT]
+* 0x2a, 0xb2 (serdes1, serdes2)
+
+When using [DEFAULT] RCW, which including 2 * 1G SGMII on board and 2 * 1G
+SGMII on SGMII riser card.
+
+Under U-Boot these network interfaces are recognized as::
+
+   FM1@DTSEC3, FM1@DTSEC4, FM1@DTSEC5 and FM1@DTSEC6.
+
+On Linux the interfaces are renamed as::
+
+   eth2 -> fm1-gb2
+   eth3 -> fm1-gb3
+   eth4 -> fm1-gb4
+   eth5 -> fm1-gb5
+
+RCW and Ethernet interfaces for B4420QDS
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Serdes protocosl tested:
+* 0x18, 0x9e (serdes1, serdes2)
+
+Under U-Boot these network interfaces are recognized as::
+
+   FM1@DTSEC3, FM1@DTSEC4 and  e1000#0.
+
+On Linux the interfaces are renamed as::
+
+   eth2 -> fm1-gb2
+   eth3 -> fm1-gb3
+
+NAND boot with 2 Stage boot loader
+----------------------------------
+PBL initialise the internal SRAM and copy SPL(160KB) in SRAM.
+SPL further initialise DDR using SPD and environment variables and copy
+U-Boot(768 KB) from flash to DDR.
+Finally SPL transer control to U-Boot for futher booting.
+
+SPL has following features:
+ - Executes within 256K
+ - No relocation required
+
+Run time view of SPL framework during  boot:
+
++----------------------------------------------+
+|Area        | Address                         |
++----------------------------------------------+
+|Secure boot | 0xFFFC0000 (32KB)               |
+|headers     |                                 |
++----------------------------------------------+
+|GD, BD      | 0xFFFC8000 (4KB)                |
++----------------------------------------------+
+|ENV         | 0xFFFC9000 (8KB)                |
++----------------------------------------------+
+|HEAP        | 0xFFFCB000 (30KB)               |
++----------------------------------------------+
+|STACK       | 0xFFFD8000 (22KB)               |
++----------------------------------------------+
+|U-Boot SPL  | 0xFFFD8000 (160KB)              |
++----------------------------------------------+
+
+NAND Flash memory Map on B4860 and B4420QDS
+-------------------------------------------
+
+=============   =============   =============================   =====
+Start		End		Definition			Size
+=============   =============   =============================   =====
+0x000000	0x0FFFFF	U-Boot                          1MB
+0x140000	0x15FFFF	U-Boot env                      128KB
+0x1A0000	0x1BFFFF	FMAN Ucode                      128KB
+=============   =============   =============================   =====
diff --git a/doc/board/index.rst b/doc/board/index.rst
index b2f83b6..a7e94cf 100644
--- a/doc/board/index.rst
+++ b/doc/board/index.rst
@@ -10,6 +10,7 @@ Board-specific doc
    atmel/index
    coreboot/index
    emulation/index
+   freescale/index
    google/index
    intel/index
    renesas/index
