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>

12 files changed, 975 insertions, 2 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index f8ef5dc209..3d0828db4e 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -721,6 +721,16 @@ config TARGET_LS2085AQDS
 	  development platform that supports the QorIQ LS2085A
 	  Layerscape Architecture processor.
 
+config TARGET_LS2085ARDB
+	bool "Support ls2085ardb"
+	select ARM64
+	select ARMV8_MULTIENTRY
+	help
+	  Support for Freescale LS2085ARDB platform.
+	  The LS2085A Reference design board (RDB) is a high-performance
+	  development platform that supports the QorIQ LS2085A
+	  Layerscape Architecture processor.
+
 config TARGET_LS1021AQDS
 	bool "Support ls1021aqds"
 	select CPU_V7
@@ -876,6 +886,7 @@ source "board/embest/mx6boards/Kconfig"
 source "board/esg/ima3-mx53/Kconfig"
 source "board/freescale/ls2085a/Kconfig"
 source "board/freescale/ls2085aqds/Kconfig"
+source "board/freescale/ls2085ardb/Kconfig"
 source "board/freescale/ls1021aqds/Kconfig"
 source "board/freescale/ls1021atwr/Kconfig"
 source "board/freescale/mx23evk/Kconfig"
diff --git a/arch/arm/cpu/armv8/fsl-lsch3/README b/arch/arm/cpu/armv8/fsl-lsch3/README
index 817ea1bc12..4f36e2a605 100644
--- a/arch/arm/cpu/armv8/fsl-lsch3/README
+++ b/arch/arm/cpu/armv8/fsl-lsch3/README
@@ -38,7 +38,7 @@ Flash Layout
 	32-MB NOR flash layout for pre-silicon platforms (simulator and emulator)
 
 (2) A typical layout of various images (including Linux and other firmware images)
-    is shown below considering a 128MB NOR flash device present on QDS
+    is shown below considering a 128MB NOR flash device present on QDS and RDB
     boards:
 	----------------------------------------- ----> 0x5_8800_0000 ---
 	|	.. Unused .. (7M)		|			|
@@ -86,7 +86,7 @@ Flash Layout
 	|	RCW and PBI (1M) 		|			|
 	----------------------------------------- ----> 0x5_8000_0000 ---
 
-	128-MB NOR flash layout for QDS board
+	128-MB NOR flash layout for QDS and RDB boards
 
 Environment Variables
 =====================
diff --git a/board/freescale/ls2085ardb/Kconfig b/board/freescale/ls2085ardb/Kconfig
new file mode 100644
index 0000000000..85a3dcdc45
--- /dev/null
+++ b/board/freescale/ls2085ardb/Kconfig
@@ -0,0 +1,16 @@
+
+if TARGET_LS2085ARDB
+
+config SYS_BOARD
+	default "ls2085ardb"
+
+config SYS_VENDOR
+	default "freescale"
+
+config SYS_SOC
+	default "fsl-lsch3"
+
+config SYS_CONFIG_NAME
+	default "ls2085ardb"
+
+endif
diff --git a/board/freescale/ls2085ardb/MAINTAINERS b/board/freescale/ls2085ardb/MAINTAINERS
new file mode 100644
index 0000000000..436039ffde
--- /dev/null
+++ b/board/freescale/ls2085ardb/MAINTAINERS
@@ -0,0 +1,7 @@
+LS2085A BOARD
+M:	Prabhakar Kushwaha <prabhakar@freescale.com>
+S:	Maintained
+F:	board/freescale/ls2085ardb/
+F:	board/freescale/ls2085a/ls2085ardb.c
+F:	include/configs/ls2085ardb.h
+F:	configs/ls2085ardb_defconfig
diff --git a/board/freescale/ls2085ardb/Makefile b/board/freescale/ls2085ardb/Makefile
new file mode 100644
index 0000000000..0bfe21c1d8
--- /dev/null
+++ b/board/freescale/ls2085ardb/Makefile
@@ -0,0 +1,8 @@
+#
+# Copyright 2015 Freescale Semiconductor
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y += ls2085ardb.o
+obj-y += ddr.o
diff --git a/board/freescale/ls2085ardb/README b/board/freescale/ls2085ardb/README
new file mode 100644
index 0000000000..cfd5185f46
--- /dev/null
+++ b/board/freescale/ls2085ardb/README
@@ -0,0 +1,109 @@
+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
diff --git a/board/freescale/ls2085ardb/ddr.c b/board/freescale/ls2085ardb/ddr.c
new file mode 100644
index 0000000000..6cd5e8bb23
--- /dev/null
+++ b/board/freescale/ls2085ardb/ddr.c
@@ -0,0 +1,192 @@
+/*
+ * Copyright 2015 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <fsl_ddr_sdram.h>
+#include <fsl_ddr_dimm_params.h>
+#include "ddr.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+void fsl_ddr_board_options(memctl_options_t *popts,
+				dimm_params_t *pdimm,
+				unsigned int ctrl_num)
+{
+	u8 dq_mapping_0, dq_mapping_2, dq_mapping_3;
+	const struct board_specific_parameters *pbsp, *pbsp_highest = NULL;
+	ulong ddr_freq;
+	int slot;
+
+	if (ctrl_num > 2) {
+		printf("Not supported controller number %d\n", ctrl_num);
+		return;
+	}
+
+	for (slot = 0; slot < CONFIG_DIMM_SLOTS_PER_CTLR; slot++) {
+		if (pdimm[slot].n_ranks)
+			break;
+	}
+
+	if (slot >= CONFIG_DIMM_SLOTS_PER_CTLR)
+		return;
+
+	/*
+	 * we use identical timing for all slots. If needed, change the code
+	 * to  pbsp = rdimms[ctrl_num] or pbsp = udimms[ctrl_num];
+	 */
+	if (popts->registered_dimm_en)
+		pbsp = rdimms[ctrl_num];
+	else
+		pbsp = udimms[ctrl_num];
+
+
+	/* Get clk_adjust, wrlvl_start, wrlvl_ctl, according to the board ddr
+	 * freqency and n_banks specified in board_specific_parameters table.
+	 */
+	ddr_freq = get_ddr_freq(ctrl_num) / 1000000;
+	while (pbsp->datarate_mhz_high) {
+		if (pbsp->n_ranks == pdimm[slot].n_ranks &&
+		    (pdimm[slot].rank_density >> 30) >= pbsp->rank_gb) {
+			if (ddr_freq <= pbsp->datarate_mhz_high) {
+				popts->clk_adjust = pbsp->clk_adjust;
+				popts->wrlvl_start = pbsp->wrlvl_start;
+				popts->wrlvl_ctl_2 = pbsp->wrlvl_ctl_2;
+				popts->wrlvl_ctl_3 = pbsp->wrlvl_ctl_3;
+				goto found;
+			}
+			pbsp_highest = pbsp;
+		}
+		pbsp++;
+	}
+
+	if (pbsp_highest) {
+		printf("Error: board specific timing not found for data rate %lu MT/s\n"
+			"Trying to use the highest speed (%u) parameters\n",
+			ddr_freq, pbsp_highest->datarate_mhz_high);
+		popts->clk_adjust = pbsp_highest->clk_adjust;
+		popts->wrlvl_start = pbsp_highest->wrlvl_start;
+		popts->wrlvl_ctl_2 = pbsp->wrlvl_ctl_2;
+		popts->wrlvl_ctl_3 = pbsp->wrlvl_ctl_3;
+	} else {
+		panic("DIMM is not supported by this board");
+	}
+found:
+	debug("Found timing match: n_ranks %d, data rate %d, rank_gb %d\n"
+		"\tclk_adjust %d, wrlvl_start %d, wrlvl_ctrl_2 0x%x, wrlvl_ctrl_3 0x%x\n",
+		pbsp->n_ranks, pbsp->datarate_mhz_high, pbsp->rank_gb,
+		pbsp->clk_adjust, pbsp->wrlvl_start, pbsp->wrlvl_ctl_2,
+		pbsp->wrlvl_ctl_3);
+
+	if (ctrl_num == CONFIG_DP_DDR_CTRL) {
+		/* force DDR bus width to 32 bits */
+		popts->data_bus_width = 1;
+		popts->otf_burst_chop_en = 0;
+		popts->burst_length = DDR_BL8;
+		popts->bstopre = 0;	/* enable auto precharge */
+		/*
+		 * Layout optimization results byte mapping
+		 * Byte 0 -> Byte ECC
+		 * Byte 1 -> Byte 3
+		 * Byte 2 -> Byte 2
+		 * Byte 3 -> Byte 1
+		 * Byte ECC -> Byte 0
+		 */
+		dq_mapping_0 = pdimm[slot].dq_mapping[0];
+		dq_mapping_2 = pdimm[slot].dq_mapping[2];
+		dq_mapping_3 = pdimm[slot].dq_mapping[3];
+		pdimm[slot].dq_mapping[0] = pdimm[slot].dq_mapping[8];
+		pdimm[slot].dq_mapping[1] = pdimm[slot].dq_mapping[9];
+		pdimm[slot].dq_mapping[2] = pdimm[slot].dq_mapping[6];
+		pdimm[slot].dq_mapping[3] = pdimm[slot].dq_mapping[7];
+		pdimm[slot].dq_mapping[6] = dq_mapping_2;
+		pdimm[slot].dq_mapping[7] = dq_mapping_3;
+		pdimm[slot].dq_mapping[8] = dq_mapping_0;
+		pdimm[slot].dq_mapping[9] = 0;
+		pdimm[slot].dq_mapping[10] = 0;
+		pdimm[slot].dq_mapping[11] = 0;
+		pdimm[slot].dq_mapping[12] = 0;
+		pdimm[slot].dq_mapping[13] = 0;
+		pdimm[slot].dq_mapping[14] = 0;
+		pdimm[slot].dq_mapping[15] = 0;
+		pdimm[slot].dq_mapping[16] = 0;
+		pdimm[slot].dq_mapping[17] = 0;
+	}
+	/* To work at higher than 1333MT/s */
+	popts->half_strength_driver_enable = 0;
+	/*
+	 * Write leveling override
+	 */
+	popts->wrlvl_override = 1;
+	popts->wrlvl_sample = 0x0;	/* 32 clocks */
+
+	/*
+	 * Rtt and Rtt_WR override
+	 */
+	popts->rtt_override = 0;
+
+	/* Enable ZQ calibration */
+	popts->zq_en = 1;
+
+	if (ddr_freq < 2350) {
+		popts->ddr_cdr1 = DDR_CDR1_DHC_EN |
+				  DDR_CDR1_ODT(DDR_CDR_ODT_60ohm);
+		popts->ddr_cdr2 = DDR_CDR2_ODT(DDR_CDR_ODT_60ohm) |
+				  DDR_CDR2_VREF_RANGE_2;
+	} else {
+		popts->ddr_cdr1 = DDR_CDR1_DHC_EN |
+				  DDR_CDR1_ODT(DDR_CDR_ODT_100ohm);
+		popts->ddr_cdr2 = DDR_CDR2_ODT(DDR_CDR_ODT_100ohm) |
+				  DDR_CDR2_VREF_RANGE_2;
+	}
+}
+
+phys_size_t initdram(int board_type)
+{
+	phys_size_t dram_size;
+
+	puts("Initializing DDR....using SPD\n");
+
+	dram_size = fsl_ddr_sdram();
+
+	return dram_size;
+}
+
+void dram_init_banksize(void)
+{
+#ifdef CONFIG_SYS_DP_DDR_BASE_PHY
+	phys_size_t dp_ddr_size;
+#endif
+
+	gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
+	if (gd->ram_size > CONFIG_SYS_LS2_DDR_BLOCK1_SIZE) {
+		gd->bd->bi_dram[0].size = CONFIG_SYS_LS2_DDR_BLOCK1_SIZE;
+		gd->bd->bi_dram[1].start = CONFIG_SYS_DDR_BLOCK2_BASE;
+		gd->bd->bi_dram[1].size = gd->ram_size -
+					  CONFIG_SYS_LS2_DDR_BLOCK1_SIZE;
+	} else {
+		gd->bd->bi_dram[0].size = gd->ram_size;
+	}
+
+#ifdef CONFIG_SYS_DP_DDR_BASE_PHY
+	/* initialize DP-DDR here */
+	puts("DP-DDR:  ");
+	/*
+	 * DDR controller use 0 as the base address for binding.
+	 * It is mapped to CONFIG_SYS_DP_DDR_BASE for core to access.
+	 */
+	dp_ddr_size = fsl_other_ddr_sdram(CONFIG_SYS_DP_DDR_BASE_PHY,
+					  CONFIG_DP_DDR_CTRL,
+					  CONFIG_DP_DDR_NUM_CTRLS,
+					  CONFIG_DP_DDR_DIMM_SLOTS_PER_CTLR,
+					  NULL, NULL, NULL);
+	if (dp_ddr_size) {
+		gd->bd->bi_dram[2].start = CONFIG_SYS_DP_DDR_BASE;
+		gd->bd->bi_dram[2].size = dp_ddr_size;
+	} else {
+		puts("Not detected");
+	}
+#endif
+}
diff --git a/board/freescale/ls2085ardb/ddr.h b/board/freescale/ls2085ardb/ddr.h
new file mode 100644
index 0000000000..bda9d4a40f
--- /dev/null
+++ b/board/freescale/ls2085ardb/ddr.h
@@ -0,0 +1,92 @@
+/*
+ * Copyright 2015 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __DDR_H__
+#define __DDR_H__
+struct board_specific_parameters {
+	u32 n_ranks;
+	u32 datarate_mhz_high;
+	u32 rank_gb;
+	u32 clk_adjust;
+	u32 wrlvl_start;
+	u32 wrlvl_ctl_2;
+	u32 wrlvl_ctl_3;
+};
+
+/*
+ * These tables contain all valid speeds we want to override with board
+ * specific parameters. datarate_mhz_high values need to be in ascending order
+ * for each n_ranks group.
+ */
+
+static const struct board_specific_parameters udimm0[] = {
+	/*
+	 * memory controller 0
+	 *   num|  hi| rank|  clk| wrlvl |   wrlvl   |  wrlvl
+	 * ranks| mhz| GB  |adjst| start |   ctl2    |  ctl3
+	 */
+	{2,  1350, 0, 4,     6, 0x0708090B, 0x0C0D0E09,},
+	{2,  1666, 0, 4,     8, 0x08090B0D, 0x0E10100C,},
+	{2,  1900, 0, 4,     8, 0x090A0C0E, 0x1012120D,},
+	{2,  2300, 0, 4,     9, 0x0A0B0C10, 0x1114140E,},
+	{}
+};
+
+/* DP-DDR DIMM */
+static const struct board_specific_parameters udimm2[] = {
+	/*
+	 * memory controller 2
+	 *   num|  hi| rank|  clk| wrlvl |   wrlvl   |  wrlvl
+	 * ranks| mhz| GB  |adjst| start |   ctl2    |  ctl3
+	 */
+	{2,  1350, 0, 4,   0xd, 0x0C0A0A00, 0x00000009,},
+	{2,  1666, 0, 4,   0xd, 0x0C0A0A00, 0x00000009,},
+	{2,  1900, 0, 4,   0xe, 0x0D0C0B00, 0x0000000A,},
+	{2,  2200, 0, 4,   0xe, 0x0D0C0B00, 0x0000000A,},
+	{}
+};
+
+static const struct board_specific_parameters rdimm0[] = {
+	/*
+	 * memory controller 0
+	 *   num|  hi| rank|  clk| wrlvl |   wrlvl   |  wrlvl
+	 * ranks| mhz| GB  |adjst| start |   ctl2    |  ctl3
+	 */
+	{2,  1350, 0, 4,     6, 0x0708090B, 0x0C0D0E09,},
+	{2,  1666, 0, 4,     7, 0x08090A0C, 0x0D0F100B,},
+	{2,  1900, 0, 4,     7, 0x09090B0D, 0x0E10120B,},
+	{2,  2200, 0, 4,     8, 0x090A0C0F, 0x1012130C,},
+	{}
+};
+
+/* DP-DDR DIMM */
+static const struct board_specific_parameters rdimm2[] = {
+	/*
+	 * memory controller 2
+	 *   num|  hi| rank|  clk| wrlvl |   wrlvl   |  wrlvl
+	 * ranks| mhz| GB  |adjst| start |   ctl2    |  ctl3
+	 */
+	{2,  1350, 0, 4,     6, 0x0708090B, 0x0C0D0E09,},
+	{2,  1666, 0, 4,     7, 0x0B0A090C, 0x0D0F100B,},
+	{2,  1900, 0, 4,     7, 0x09090B0D, 0x0E10120B,},
+	{2,  2200, 0, 4,     8, 0x090A0C0F, 0x1012130C,},
+	{}
+};
+
+static const struct board_specific_parameters *udimms[] = {
+	udimm0,
+	udimm0,
+	udimm2,
+};
+
+static const struct board_specific_parameters *rdimms[] = {
+	rdimm0,
+	rdimm0,
+	rdimm2,
+};
+
+
+#endif
diff --git a/board/freescale/ls2085ardb/ls2085ardb.c b/board/freescale/ls2085ardb/ls2085ardb.c
new file mode 100644
index 0000000000..d05f2bc581
--- /dev/null
+++ b/board/freescale/ls2085ardb/ls2085ardb.c
@@ -0,0 +1,249 @@
+/*
+ * Copyright 2015 Freescale Semiconductor
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+#include <common.h>
+#include <malloc.h>
+#include <errno.h>
+#include <netdev.h>
+#include <fsl_ifc.h>
+#include <fsl_ddr.h>
+#include <asm/io.h>
+#include <fdt_support.h>
+#include <libfdt.h>
+#include <fsl_debug_server.h>
+#include <fsl-mc/fsl_mc.h>
+#include <environment.h>
+#include <i2c.h>
+#include <asm/arch-fsl-lsch3/soc.h>
+
+#include "../common/qixis.h"
+#include "ls2085ardb_qixis.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+unsigned long long get_qixis_addr(void)
+{
+	unsigned long long addr;
+
+	if (gd->flags & GD_FLG_RELOC)
+		addr = QIXIS_BASE_PHYS;
+	else
+		addr = QIXIS_BASE_PHYS_EARLY;
+
+	/*
+	 * IFC address under 256MB is mapped to 0x30000000, any address above
+	 * is mapped to 0x5_10000000 up to 4GB.
+	 */
+	addr = addr  > 0x10000000 ? addr + 0x500000000ULL : addr + 0x30000000;
+
+	return addr;
+}
+
+int checkboard(void)
+{
+	u8 sw;
+
+	sw = QIXIS_READ(arch);
+	printf("Board: %s, ", CONFIG_IDENT_STRING);
+	printf("Board Arch: V%d, ", sw >> 4);
+	printf("Board version: %c, boot from ", (sw & 0xf) + 'A' - 1);
+
+	sw = QIXIS_READ(brdcfg[0]);
+	sw = (sw & QIXIS_LBMAP_MASK) >> QIXIS_LBMAP_SHIFT;
+
+	if (sw < 0x8)
+		printf("vBank: %d\n", sw);
+	else if (sw == 0x9)
+		puts("NAND\n");
+	else
+		printf("invalid setting of SW%u\n", QIXIS_LBMAP_SWITCH);
+
+	printf("FPGA: v%d.%d\n", QIXIS_READ(scver), QIXIS_READ(tagdata));
+
+	puts("SERDES1 Reference : ");
+	printf("Clock1 = 156.25MHz ");
+	printf("Clock2 = 156.25MHz");
+
+	puts("\nSERDES2 Reference : ");
+	printf("Clock1 = 100MHz ");
+	printf("Clock2 = 100MHz\n");
+
+	return 0;
+}
+
+unsigned long get_board_sys_clk(void)
+{
+	u8 sysclk_conf = QIXIS_READ(brdcfg[1]);
+
+	switch (sysclk_conf & 0x0F) {
+	case QIXIS_SYSCLK_83:
+		return 83333333;
+	case QIXIS_SYSCLK_100:
+		return 100000000;
+	case QIXIS_SYSCLK_125:
+		return 125000000;
+	case QIXIS_SYSCLK_133:
+		return 133333333;
+	case QIXIS_SYSCLK_150:
+		return 150000000;
+	case QIXIS_SYSCLK_160:
+		return 160000000;
+	case QIXIS_SYSCLK_166:
+		return 166666666;
+	}
+	return 66666666;
+}
+
+int select_i2c_ch_pca9547(u8 ch)
+{
+	int ret;
+
+	ret = i2c_write(I2C_MUX_PCA_ADDR_PRI, 0, 1, &ch, 1);
+	if (ret) {
+		puts("PCA: failed to select proper channel\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+int board_init(void)
+{
+	init_final_memctl_regs();
+
+#ifdef CONFIG_ENV_IS_NOWHERE
+	gd->env_addr = (ulong)&default_environment[0];
+#endif
+	select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT);
+
+	QIXIS_WRITE(rst_ctl, QIXIS_RST_CTL_RESET_EN);
+
+	return 0;
+}
+
+int board_early_init_f(void)
+{
+	fsl_lsch3_early_init_f();
+	return 0;
+}
+
+void detail_board_ddr_info(void)
+{
+	puts("\nDDR    ");
+	print_size(gd->bd->bi_dram[0].size + gd->bd->bi_dram[1].size, "");
+	print_ddr_info(0);
+	if (gd->bd->bi_dram[2].size) {
+		puts("\nDP-DDR ");
+		print_size(gd->bd->bi_dram[2].size, "");
+		print_ddr_info(CONFIG_DP_DDR_CTRL);
+	}
+}
+
+int dram_init(void)
+{
+	gd->ram_size = initdram(0);
+
+	return 0;
+}
+
+#if defined(CONFIG_ARCH_MISC_INIT)
+int arch_misc_init(void)
+{
+#ifdef CONFIG_FSL_DEBUG_SERVER
+	debug_server_init();
+#endif
+
+	return 0;
+}
+#endif
+
+unsigned long get_dram_size_to_hide(void)
+{
+	unsigned long dram_to_hide = 0;
+
+/* Carve the Debug Server private DRAM block from the end of DRAM */
+#ifdef CONFIG_FSL_DEBUG_SERVER
+	dram_to_hide += debug_server_get_dram_block_size();
+#endif
+
+/* Carve the MC private DRAM block from the end of DRAM */
+#ifdef CONFIG_FSL_MC_ENET
+	dram_to_hide += mc_get_dram_block_size();
+#endif
+
+	return dram_to_hide;
+}
+
+int board_eth_init(bd_t *bis)
+{
+	int error = 0;
+
+#ifdef CONFIG_FSL_MC_ENET
+	error = cpu_eth_init(bis);
+#endif
+
+	error = pci_eth_init(bis);
+
+	return error;
+}
+
+#ifdef CONFIG_FSL_MC_ENET
+void fdt_fixup_board_enet(void *fdt)
+{
+	int offset;
+
+	offset = fdt_path_offset(fdt, "/fsl-mc");
+
+	if (offset < 0)
+		offset = fdt_path_offset(fdt, "/fsl,dprc@0");
+
+	if (offset < 0) {
+		printf("%s: ERROR: fsl-mc node not found in device tree (error %d)\n",
+		       __func__, offset);
+		return;
+	}
+
+	if (get_mc_boot_status() == 0)
+		fdt_status_okay(fdt, offset);
+	else
+		fdt_status_fail(fdt, offset);
+}
+#endif
+
+#ifdef CONFIG_OF_BOARD_SETUP
+int ft_board_setup(void *blob, bd_t *bd)
+{
+	phys_addr_t base;
+	phys_size_t size;
+
+	ft_cpu_setup(blob, bd);
+
+	/* limit the memory size to bank 1 until Linux can handle 40-bit PA */
+	base = getenv_bootm_low();
+	size = getenv_bootm_size();
+	fdt_fixup_memory(blob, (u64)base, (u64)size);
+
+#ifdef CONFIG_FSL_MC_ENET
+	fdt_fixup_board_enet(blob);
+	fsl_mc_ldpaa_exit(bd);
+#endif
+
+	return 0;
+}
+#endif
+
+void qixis_dump_switch(void)
+{
+	int i, nr_of_cfgsw;
+
+	QIXIS_WRITE(cms[0], 0x00);
+	nr_of_cfgsw = QIXIS_READ(cms[1]);
+
+	puts("DIP switch settings dump:\n");
+	for (i = 1; i <= nr_of_cfgsw; i++) {
+		QIXIS_WRITE(cms[0], i);
+		printf("SW%d = (0x%02x)\n", i, QIXIS_READ(cms[1]));
+	}
+}
diff --git a/board/freescale/ls2085ardb/ls2085ardb_qixis.h b/board/freescale/ls2085ardb/ls2085ardb_qixis.h
new file mode 100644
index 0000000000..cb60c00c6c
--- /dev/null
+++ b/board/freescale/ls2085ardb/ls2085ardb_qixis.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2015 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __LS2_RDB_QIXIS_H__
+#define __LS2_RDB_QIXIS_H__
+
+/* SYSCLK */
+#define QIXIS_SYSCLK_66			0x0
+#define QIXIS_SYSCLK_83			0x1
+#define QIXIS_SYSCLK_100		0x2
+#define QIXIS_SYSCLK_125		0x3
+#define QIXIS_SYSCLK_133		0x4
+#define QIXIS_SYSCLK_150		0x5
+#define QIXIS_SYSCLK_160		0x6
+#define QIXIS_SYSCLK_166		0x7
+
+#endif /*__LS2_RDB_QIXIS_H__*/
diff --git a/configs/ls2085ardb_defconfig b/configs/ls2085ardb_defconfig
new file mode 100644
index 0000000000..6b64f71817
--- /dev/null
+++ b/configs/ls2085ardb_defconfig
@@ -0,0 +1,3 @@
+CONFIG_SYS_EXTRA_OPTIONS="SYS_FSL_DDR4"
+CONFIG_ARM=y
+CONFIG_TARGET_LS2085ARDB=y
diff --git a/include/configs/ls2085ardb.h b/include/configs/ls2085ardb.h
new file mode 100644
index 0000000000..9c6f3ed5d7
--- /dev/null
+++ b/include/configs/ls2085ardb.h
@@ -0,0 +1,266 @@
+/*
+ * Copyright 2015 Freescale Semiconductor
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __LS2_RDB_H
+#define __LS2_RDB_H
+
+#include "ls2085a_common.h"
+#include <config_cmd_default.h>
+
+#define CONFIG_IDENT_STRING		" LS2085A-RDB"
+#define CONFIG_BOOTP_VCI_STRING		"U-boot.LS2085A-RDB"
+
+#undef CONFIG_CONS_INDEX
+#define CONFIG_CONS_INDEX       2
+
+#define CONFIG_DISPLAY_BOARDINFO
+
+#ifndef __ASSEMBLY__
+unsigned long get_board_sys_clk(void);
+#endif
+
+#define CONFIG_SYS_CLK_FREQ		get_board_sys_clk()
+#define CONFIG_DDR_CLK_FREQ		133333333
+#define COUNTER_FREQUENCY_REAL		(CONFIG_SYS_CLK_FREQ/4)
+
+#define CONFIG_DDR_SPD
+#define CONFIG_DDR_ECC
+#define CONFIG_ECC_INIT_VIA_DDRCONTROLLER
+#define CONFIG_MEM_INIT_VALUE		0xdeadbeef
+#define SPD_EEPROM_ADDRESS1	0x51
+#define SPD_EEPROM_ADDRESS2	0x52
+#define SPD_EEPROM_ADDRESS3	0x54
+#define SPD_EEPROM_ADDRESS4	0x53	/* Board error */
+#define SPD_EEPROM_ADDRESS5	0x55
+#define SPD_EEPROM_ADDRESS6	0x56	/* dummy address */
+#define SPD_EEPROM_ADDRESS	SPD_EEPROM_ADDRESS1
+#define CONFIG_SYS_SPD_BUS_NUM	0	/* SPD on I2C bus 0 */
+#define CONFIG_DIMM_SLOTS_PER_CTLR		2
+#define CONFIG_CHIP_SELECTS_PER_CTRL		4
+#define CONFIG_DP_DDR_DIMM_SLOTS_PER_CTLR	1
+#define CONFIG_FSL_DDR_BIST	/* enable built-in memory test */
+
+/* undefined CONFIG_FSL_DDR_SYNC_REFRESH for simulator */
+
+#define CONFIG_SYS_NOR0_CSPR_EXT	(0x0)
+#define CONFIG_SYS_NOR_AMASK		IFC_AMASK(128*1024*1024)
+#define CONFIG_SYS_NOR_AMASK_EARLY	IFC_AMASK(64*1024*1024)
+
+#define CONFIG_SYS_NOR0_CSPR					\
+	(CSPR_PHYS_ADDR(CONFIG_SYS_FLASH_BASE_PHYS)		| \
+	CSPR_PORT_SIZE_16					| \
+	CSPR_MSEL_NOR						| \
+	CSPR_V)
+#define CONFIG_SYS_NOR0_CSPR_EARLY				\
+	(CSPR_PHYS_ADDR(CONFIG_SYS_FLASH_BASE_PHYS_EARLY)	| \
+	CSPR_PORT_SIZE_16					| \
+	CSPR_MSEL_NOR						| \
+	CSPR_V)
+#define CONFIG_SYS_NOR_CSOR	CSOR_NOR_ADM_SHIFT(12)
+#define CONFIG_SYS_NOR_FTIM0	(FTIM0_NOR_TACSE(0x4) | \
+				FTIM0_NOR_TEADC(0x5) | \
+				FTIM0_NOR_TEAHC(0x5))
+#define CONFIG_SYS_NOR_FTIM1	(FTIM1_NOR_TACO(0x35) | \
+				FTIM1_NOR_TRAD_NOR(0x1a) |\
+				FTIM1_NOR_TSEQRAD_NOR(0x13))
+#define CONFIG_SYS_NOR_FTIM2	(FTIM2_NOR_TCS(0x4) | \
+				FTIM2_NOR_TCH(0x4) | \
+				FTIM2_NOR_TWPH(0x0E) | \
+				FTIM2_NOR_TWP(0x1c))
+#define CONFIG_SYS_NOR_FTIM3	0x04000000
+#define CONFIG_SYS_IFC_CCR	0x01000000
+
+#ifndef CONFIG_SYS_NO_FLASH
+#define CONFIG_FLASH_CFI_DRIVER
+#define CONFIG_SYS_FLASH_CFI
+#define CONFIG_SYS_FLASH_USE_BUFFER_WRITE
+#define CONFIG_SYS_FLASH_QUIET_TEST
+#define CONFIG_FLASH_SHOW_PROGRESS	45 /* count down from 45/5: 9..1 */
+
+#define CONFIG_SYS_MAX_FLASH_BANKS	1	/* number of banks */
+#define CONFIG_SYS_MAX_FLASH_SECT	1024	/* sectors per device */
+#define CONFIG_SYS_FLASH_ERASE_TOUT	60000	/* Flash Erase Timeout (ms) */
+#define CONFIG_SYS_FLASH_WRITE_TOUT	500	/* Flash Write Timeout (ms) */
+
+#define CONFIG_SYS_FLASH_EMPTY_INFO
+#define CONFIG_SYS_FLASH_BANKS_LIST	{ CONFIG_SYS_FLASH_BASE,\
+					 CONFIG_SYS_FLASH_BASE + 0x40000000}
+#endif
+
+#define CONFIG_NAND_FSL_IFC
+#define CONFIG_SYS_NAND_MAX_ECCPOS	256
+#define CONFIG_SYS_NAND_MAX_OOBFREE	2
+
+
+#define CONFIG_SYS_NAND_CSPR_EXT	(0x0)
+#define CONFIG_SYS_NAND_CSPR	(CSPR_PHYS_ADDR(CONFIG_SYS_NAND_BASE_PHYS) \
+				| CSPR_PORT_SIZE_8 /* Port Size = 8 bit */ \
+				| CSPR_MSEL_NAND	/* MSEL = NAND */ \
+				| CSPR_V)
+#define CONFIG_SYS_NAND_AMASK	IFC_AMASK(64 * 1024)
+
+#define CONFIG_SYS_NAND_CSOR    (CSOR_NAND_ECC_ENC_EN   /* ECC on encode */ \
+				| CSOR_NAND_ECC_DEC_EN  /* ECC on decode */ \
+				| CSOR_NAND_ECC_MODE_4  /* 4-bit ECC */ \
+				| CSOR_NAND_RAL_3	/* RAL = 3Byes */ \
+				| CSOR_NAND_PGS_4K	/* Page Size = 4K */ \
+				| CSOR_NAND_SPRZ_224	/* Spare size = 224 */ \
+				| CSOR_NAND_PB(128))	/* Pages Per Block 128*/
+
+#define CONFIG_SYS_NAND_ONFI_DETECTION
+
+/* ONFI NAND Flash mode0 Timing Params */
+#define CONFIG_SYS_NAND_FTIM0		(FTIM0_NAND_TCCST(0x0e) | \
+					FTIM0_NAND_TWP(0x30)   | \
+					FTIM0_NAND_TWCHT(0x0e) | \
+					FTIM0_NAND_TWH(0x14))
+#define CONFIG_SYS_NAND_FTIM1		(FTIM1_NAND_TADLE(0x64) | \
+					FTIM1_NAND_TWBE(0xab)  | \
+					FTIM1_NAND_TRR(0x1c)   | \
+					FTIM1_NAND_TRP(0x30))
+#define CONFIG_SYS_NAND_FTIM2		(FTIM2_NAND_TRAD(0x1e) | \
+					FTIM2_NAND_TREH(0x14) | \
+					FTIM2_NAND_TWHRE(0x3c))
+#define CONFIG_SYS_NAND_FTIM3		0x0
+
+#define CONFIG_SYS_NAND_BASE_LIST	{ CONFIG_SYS_NAND_BASE }
+#define CONFIG_SYS_MAX_NAND_DEVICE	1
+#define CONFIG_MTD_NAND_VERIFY_WRITE
+#define CONFIG_CMD_NAND
+
+#define CONFIG_SYS_NAND_BLOCK_SIZE	(512 * 1024)
+
+#define CONFIG_FSL_QIXIS	/* use common QIXIS code */
+#define QIXIS_LBMAP_SWITCH		0x06
+#define QIXIS_LBMAP_MASK		0x0f
+#define QIXIS_LBMAP_SHIFT		0
+#define QIXIS_LBMAP_DFLTBANK		0x00
+#define QIXIS_LBMAP_ALTBANK		0x04
+#define QIXIS_RST_CTL_RESET		0x31
+#define QIXIS_RST_CTL_RESET_EN		0x30
+#define QIXIS_RCFG_CTL_RECONFIG_IDLE	0x20
+#define QIXIS_RCFG_CTL_RECONFIG_START	0x21
+#define QIXIS_RCFG_CTL_WATCHDOG_ENBLE	0x08
+#define	QIXIS_RST_FORCE_MEM		0x01
+
+#define CONFIG_SYS_CSPR3_EXT	(0x0)
+#define CONFIG_SYS_CSPR3	(CSPR_PHYS_ADDR(QIXIS_BASE_PHYS_EARLY) \
+				| CSPR_PORT_SIZE_8 \
+				| CSPR_MSEL_GPCM \
+				| CSPR_V)
+#define CONFIG_SYS_CSPR3_FINAL	(CSPR_PHYS_ADDR(QIXIS_BASE_PHYS) \
+				| CSPR_PORT_SIZE_8 \
+				| CSPR_MSEL_GPCM \
+				| CSPR_V)
+
+#define CONFIG_SYS_AMASK3	IFC_AMASK(64*1024)
+#define CONFIG_SYS_CSOR3	CSOR_GPCM_ADM_SHIFT(12)
+/* QIXIS Timing parameters for IFC CS3 */
+#define CONFIG_SYS_CS3_FTIM0		(FTIM0_GPCM_TACSE(0x0e) | \
+					FTIM0_GPCM_TEADC(0x0e) | \
+					FTIM0_GPCM_TEAHC(0x0e))
+#define CONFIG_SYS_CS3_FTIM1		(FTIM1_GPCM_TACO(0xff) | \
+					FTIM1_GPCM_TRAD(0x3f))
+#define CONFIG_SYS_CS3_FTIM2		(FTIM2_GPCM_TCS(0xf) | \
+					FTIM2_GPCM_TCH(0xf) | \
+					FTIM2_GPCM_TWP(0x3E))
+#define CONFIG_SYS_CS3_FTIM3		0x0
+
+#define CONFIG_SYS_CSPR0_EXT		CONFIG_SYS_NOR0_CSPR_EXT
+#define CONFIG_SYS_CSPR0		CONFIG_SYS_NOR0_CSPR_EARLY
+#define CONFIG_SYS_CSPR0_FINAL		CONFIG_SYS_NOR0_CSPR
+#define CONFIG_SYS_AMASK0		CONFIG_SYS_NOR_AMASK
+#define CONFIG_SYS_CSOR0		CONFIG_SYS_NOR_CSOR
+#define CONFIG_SYS_CS0_FTIM0		CONFIG_SYS_NOR_FTIM0
+#define CONFIG_SYS_CS0_FTIM1		CONFIG_SYS_NOR_FTIM1
+#define CONFIG_SYS_CS0_FTIM2		CONFIG_SYS_NOR_FTIM2
+#define CONFIG_SYS_CS0_FTIM3		CONFIG_SYS_NOR_FTIM3
+#define CONFIG_SYS_CSPR2_EXT		CONFIG_SYS_NAND_CSPR_EXT
+#define CONFIG_SYS_CSPR2		CONFIG_SYS_NAND_CSPR
+#define CONFIG_SYS_AMASK2		CONFIG_SYS_NAND_AMASK
+#define CONFIG_SYS_CSOR2		CONFIG_SYS_NAND_CSOR
+#define CONFIG_SYS_CS2_FTIM0		CONFIG_SYS_NAND_FTIM0
+#define CONFIG_SYS_CS2_FTIM1		CONFIG_SYS_NAND_FTIM1
+#define CONFIG_SYS_CS2_FTIM2		CONFIG_SYS_NAND_FTIM2
+#define CONFIG_SYS_CS2_FTIM3		CONFIG_SYS_NAND_FTIM3
+
+/* Debug Server firmware */
+#define CONFIG_SYS_DEBUG_SERVER_FW_IN_NOR
+#define CONFIG_SYS_DEBUG_SERVER_FW_ADDR	0x580D00000ULL
+
+/* MC firmware */
+#define CONFIG_SYS_LS_MC_FW_IN_NOR
+#define CONFIG_SYS_LS_MC_FW_ADDR	0x580300000ULL
+
+#define CONFIG_SYS_LS_MC_DPL_IN_NOR
+#define CONFIG_SYS_LS_MC_DPL_ADDR	0x580700000ULL
+
+#define CONFIG_SYS_LS_MC_DPC_IN_NOR
+#define CONFIG_SYS_LS_MC_DPC_ADDR	0x580800000ULL
+
+#define CONFIG_SYS_LS_MC_BOOT_TIMEOUT_MS 5000
+
+/*
+ * I2C
+ */
+#define I2C_MUX_PCA_ADDR		0x77
+#define I2C_MUX_PCA_ADDR_PRI		0x77 /* Primary Mux*/
+
+/* I2C bus multiplexer */
+#define I2C_MUX_CH_DEFAULT      0x8
+
+/*
+ * RTC configuration
+ */
+#define RTC
+#define CONFIG_RTC_DS3231               1
+#define CONFIG_SYS_I2C_RTC_ADDR         0x68
+
+/* EEPROM */
+#define CONFIG_ID_EEPROM
+#define CONFIG_CMD_EEPROM
+#define CONFIG_SYS_I2C_EEPROM_NXID
+#define CONFIG_SYS_EEPROM_BUS_NUM	0
+#define CONFIG_SYS_I2C_EEPROM_ADDR	0x57
+#define CONFIG_SYS_I2C_EEPROM_ADDR_LEN	1
+#define CONFIG_SYS_EEPROM_PAGE_WRITE_BITS 3
+#define CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS 5
+
+#define CONFIG_ENV_IS_IN_FLASH
+#define CONFIG_ENV_ADDR			(CONFIG_SYS_FLASH_BASE + 0x200000)
+#define CONFIG_ENV_SECT_SIZE		0x20000
+#define CONFIG_ENV_SIZE			0x2000
+
+#define CONFIG_FSL_MEMAC
+#define CONFIG_PCI		/* Enable PCIE */
+#define CONFIG_PCIE_LAYERSCAPE	/* Use common FSL Layerscape PCIe code */
+
+#ifdef CONFIG_PCI
+#define CONFIG_NET_MULTI
+#define CONFIG_PCI_PNP
+#define CONFIG_E1000
+#define CONFIG_PCI_SCAN_SHOW
+#define CONFIG_CMD_PCI
+#define CONFIG_CMD_NET
+#endif
+
+
+
+/* Initial environment variables */
+#undef CONFIG_EXTRA_ENV_SETTINGS
+#define CONFIG_EXTRA_ENV_SETTINGS		\
+	"hwconfig=fsl_ddr:bank_intlv=auto\0"	\
+	"loadaddr=0x80100000\0"			\
+	"kernel_addr=0x100000\0"		\
+	"ramdisk_addr=0x800000\0"		\
+	"ramdisk_size=0x2000000\0"		\
+	"fdt_high=0xa0000000\0"			\
+	"initrd_high=0xffffffffffffffff\0"	\
+	"kernel_start=0x581100000\0"		\
+	"kernel_load=0xa0000000\0"		\
+	"kernel_size=0x1000000\0"
+
+#endif /* __LS2_RDB_H */