ARMv8/ls2085a_emu: Add LS2085A emulator and simulator board support

LS2085A is an ARMv8 implementation. This adds board support for emulator
and simulator:
  Two DDR controllers
  UART2 is used as the console
  IFC timing is tightened for speedy booting
  Support DDR3 and DDR4 as separated targets
  Management Complex (MC) is enabled
  Support for GIC 500 (based on GICv3 arch)

Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Arnab Basu <arnab.basu@freescale.com>
Signed-off-by: J. German Rivera <German.Rivera@freescale.com>
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@freescale.com>

arch/arm/cpu/armv8/fsl-lsch3/README

@@ -7,4 +7,4 @@
 Freescale LayerScape with Chassis Generation 3
 
 This architecture supports Freescale ARMv8 SoCs with Chassis generation 3,
-for example LS2100A.
+for example LS2085A.

arch/arm/include/asm/arch-fsl-lsch3/config.h

@@ -53,7 +53,7 @@
 /* IFC */
 #define CONFIG_SYS_FSL_IFC_LE
 
-#ifdef CONFIG_LS2100A
+#ifdef CONFIG_LS2085A
 #define CONFIG_MAX_CPUS				16
 #define CONFIG_SYS_FSL_IFC_BANK_COUNT		8
 #define CONFIG_NUM_DDR_CONTROLLERS		2

board/freescale/ls2085a/Makefile

@@ -0,0 +1,8 @@
+#
+# Copyright 2014 Freescale Semiconductor
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y += ls2085a.o
+obj-y += ddr.o

board/freescale/ls2085a/README

@@ -0,0 +1,16 @@
+Freescale ls2085a_emu
+
+This is a emulator target with limited peripherals.
+
+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.

board/freescale/ls2085a/ddr.c

@@ -0,0 +1,175 @@
+/*
+ * Copyright 2014 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)
+{
+	const struct board_specific_parameters *pbsp, *pbsp_highest = NULL;
+	ulong ddr_freq;
+
+	if (ctrl_num > 3) {
+		printf("Not supported controller number %d\n", ctrl_num);
+		return;
+	}
+	if (!pdimm->n_ranks)
+		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[0];
+	else
+		pbsp = udimms[0];
+
+
+	/* 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(0) / 1000000;
+	while (pbsp->datarate_mhz_high) {
+		if (pbsp->n_ranks == pdimm->n_ranks &&
+		    (pdimm->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);
+
+	/*
+	 * Factors to consider for half-strength driver enable:
+	 *	- number of DIMMs installed
+	 */
+	popts->half_strength_driver_enable = 1;
+	/*
+	 * Write leveling override
+	 */
+	popts->wrlvl_override = 1;
+	popts->wrlvl_sample = 0xf;
+
+	/*
+	 * Rtt and Rtt_WR override
+	 */
+	popts->rtt_override = 0;
+
+	/* Enable ZQ calibration */
+	popts->zq_en = 1;
+
+#ifdef CONFIG_SYS_FSL_DDR4
+	popts->ddr_cdr1 = DDR_CDR1_DHC_EN | DDR_CDR1_ODT(DDR_CDR_ODT_80ohm);
+	popts->ddr_cdr2 = DDR_CDR2_ODT(DDR_CDR_ODT_80ohm) |
+			  DDR_CDR2_VREF_OVRD(70);	/* Vref = 70% */
+#else
+	/* DHC_EN =1, ODT = 75 Ohm */
+	popts->ddr_cdr1 = DDR_CDR1_DHC_EN | DDR_CDR1_ODT(DDR_CDR_ODT_75ohm);
+	popts->ddr_cdr2 = DDR_CDR2_ODT(DDR_CDR_ODT_75ohm);
+#endif
+}
+
+#ifdef CONFIG_SYS_DDR_RAW_TIMING
+dimm_params_t ddr_raw_timing = {
+	.n_ranks = 2,
+	.rank_density = 1073741824u,
+	.capacity = 2147483648,
+	.primary_sdram_width = 64,
+	.ec_sdram_width = 0,
+	.registered_dimm = 0,
+	.mirrored_dimm = 0,
+	.n_row_addr = 14,
+	.n_col_addr = 10,
+	.n_banks_per_sdram_device = 8,
+	.edc_config = 0,
+	.burst_lengths_bitmask = 0x0c,
+
+	.tckmin_x_ps = 937,
+	.caslat_x = 0x6FC << 4,  /* 14,13,11,10,9,8,7,6 */
+	.taa_ps = 13090,
+	.twr_ps = 15000,
+	.trcd_ps = 13090,
+	.trrd_ps = 5000,
+	.trp_ps = 13090,
+	.tras_ps = 33000,
+	.trc_ps = 46090,
+	.trfc_ps = 160000,
+	.twtr_ps = 7500,
+	.trtp_ps = 7500,
+	.refresh_rate_ps = 7800000,
+	.tfaw_ps = 25000,
+};
+
+int fsl_ddr_get_dimm_params(dimm_params_t *pdimm,
+		unsigned int controller_number,
+		unsigned int dimm_number)
+{
+	const char dimm_model[] = "Fixed DDR on board";
+
+	if (((controller_number == 0) && (dimm_number == 0)) ||
+	    ((controller_number == 1) && (dimm_number == 0))) {
+		memcpy(pdimm, &ddr_raw_timing, sizeof(dimm_params_t));
+		memset(pdimm->mpart, 0, sizeof(pdimm->mpart));
+		memcpy(pdimm->mpart, dimm_model, sizeof(dimm_model) - 1);
+	}
+
+	return 0;
+}
+#endif
+phys_size_t initdram(int board_type)
+{
+	phys_size_t dram_size;
+
+	puts("Initializing DDR....");
+
+	puts("using SPD\n");
+	dram_size = fsl_ddr_sdram();
+
+	return dram_size;
+}
+
+void dram_init_banksize(void)
+{
+	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;
+	}
+}

board/freescale/ls2085a/ddr.h

@@ -0,0 +1,57 @@
+/*
+ * Copyright 2014 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,  2140, 0, 4,     4, 0x0, 0x0},
+	{1,  2140, 0, 4,     4, 0x0, 0x0},
+	{}
+};
+
+static const struct board_specific_parameters rdimm0[] = {
+	/*
+	 * memory controller 0
+	 *   num|  hi| rank|  clk| wrlvl |   wrlvl   |  wrlvl
+	 * ranks| mhz| GB  |adjst| start |   ctl2    |  ctl3
+	 */
+	{4,  2140, 0, 5,     4, 0x0, 0x0},
+	{2,  2140, 0, 5,     4, 0x0, 0x0},
+	{1,  2140, 0, 4,     4, 0x0, 0x0},
+	{}
+};
+
+static const struct board_specific_parameters *udimms[] = {
+	udimm0,
+};
+
+static const struct board_specific_parameters *rdimms[] = {
+	rdimm0,
+};
+
+
+#endif

board/freescale/ls2085a/ls2085a.c

@@ -0,0 +1,100 @@
+/*
+ * Copyright 2014 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_mc.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_init(void)
+{
+	init_final_memctl_regs();
+	return 0;
+}
+
+int board_early_init_f(void)
+{
+	init_early_memctl_regs();	/* tighten IFC timing */
+
+	return 0;
+}
+
+int dram_init(void)
+{
+	printf("DRAM:  ");
+	gd->ram_size = initdram(0);
+
+	return 0;
+}
+
+int timer_init(void)
+{
+	u32 __iomem *cntcr = (u32 *)CONFIG_SYS_FSL_TIMER_ADDR;
+	u32 __iomem *cltbenr = (u32 *)CONFIG_SYS_FSL_PMU_CLTBENR;
+
+	out_le32(cltbenr, 0x1);		/* enable cluster0 timebase */
+	out_le32(cntcr, 0x1);		/* enable clock for timer */
+
+	return 0;
+}
+
+/*
+ * Board specific reset that is system reset.
+ */
+void reset_cpu(ulong addr)
+{
+}
+
+int board_eth_init(bd_t *bis)
+{
+	int error = 0;
+
+#ifdef CONFIG_SMC91111
+	error = smc91111_initialize(0, CONFIG_SMC91111_BASE);
+#endif
+
+#ifdef CONFIG_FSL_MC_ENET
+	error = cpu_eth_init(bis);
+#endif
+	return error;
+}
+
+#ifdef CONFIG_FSL_MC_ENET
+void fdt_fixup_board_enet(void *fdt)
+{
+	int offset;
+
+	offset = fdt_path_offset(fdt, "/fsl,dprc@0");
+	if (get_mc_boot_status() == 0)
+		fdt_status_okay(fdt, offset);
+	else
+		fdt_status_fail(fdt, offset);
+}
+#endif
+
+#ifdef CONFIG_OF_BOARD_SETUP
+void ft_board_setup(void *blob, bd_t *bd)
+{
+	phys_addr_t base;
+	phys_size_t size;
+
+	/* 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);
+#endif
+}
+#endif

boards.cfg

@@ -43,6 +43,9 @@
 # Status, Arch, CPU:SPLCPU, SoC, Vendor, Board name, Target, Options, Maintainers
 ###########################################################################################################
 
+Active  aarch64     armv8          fsl-lsch3   freescale       ls2085a             ls2085a_emu                          ls2085a_emu:ARM64,EMU                                                                                                             York Sun <yorksun@freescale.com>
+Active  aarch64     armv8          fsl-lsch3   freescale       ls2085a             ls2085a_emu_D4                       ls2085a_emu:ARM64,EMU,SYS_FSL_DDR4                                                                                                York Sun <yorksun@freescale.com>
+Active  aarch64     armv8          fsl-lsch3   freescale       ls2085a             ls2085a_simu                         ls2085a_simu:ARM64,SIMU                                                                                                           York Sun <yorksun@freescale.com>
 Active  aarch64     armv8          -           armltd          vexpress64          vexpress_aemv8a                       vexpress_aemv8a:ARM64                                                                                                             David Feng <fenghua@phytium.com.cn>
 Active  aarch64     armv8          -           armltd          vexpress64          vexpress_aemv8a_semi                  vexpress_aemv8a:ARM64,SEMIHOSTING,BASE_FVP                                                                                        Steve Rae <srae@broadcom.com>
 Active  arc         arc700         -           synopsys        -                   axs101                                -                                                                                                                                 Alexey Brodkin <abrodkin@synopsys.com>

include/configs/ls2085a_common.h

@@ -0,0 +1,226 @@
+/*
+ * Copyright (C) 2014 Freescale Semiconductor
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __LS2_COMMON_H
+#define __LS2_COMMON_H
+
+#define CONFIG_SYS_GENERIC_BOARD
+
+#define CONFIG_REMAKE_ELF
+#define CONFIG_FSL_LSCH3
+#define CONFIG_LS2085A
+#define CONFIG_GICV3
+
+/* Link Definitions */
+#define CONFIG_SYS_TEXT_BASE		0x30000000
+
+#define CONFIG_SYS_NO_FLASH
+
+#define CONFIG_SUPPORT_RAW_INITRD
+
+#define CONFIG_SKIP_LOWLEVEL_INIT
+#define CONFIG_BOARD_EARLY_INIT_F	1
+
+#define CONFIG_IDENT_STRING		" LS2085A-EMU"
+#define CONFIG_BOOTP_VCI_STRING		"U-boot.LS2085A-EMU"
+
+/* Flat Device Tree Definitions */
+#define CONFIG_OF_LIBFDT
+#define CONFIG_OF_BOARD_SETUP
+
+/* new uImage format support */
+#define CONFIG_FIT
+#define CONFIG_FIT_VERBOSE	/* enable fit_format_{error,warning}() */
+
+#define CONFIG_FSL_DDR_INTERACTIVE	/* Interactive debugging */
+#ifndef CONFIG_SYS_FSL_DDR4
+#define CONFIG_SYS_FSL_DDR3		/* Use DDR3 memory */
+#define CONFIG_SYS_DDR_RAW_TIMING
+#endif
+#define CONFIG_DIMM_SLOTS_PER_CTLR	1
+#define CONFIG_CHIP_SELECTS_PER_CTRL	4
+
+#define CONFIG_SYS_FSL_DDR_INTLV_256B	/* force 256 byte interleaving */
+
+/* SMP Definitions */
+#define CPU_RELEASE_ADDR		CONFIG_SYS_INIT_SP_ADDR
+
+#define CONFIG_SYS_DDR_SDRAM_BASE	0x80000000UL
+#define CONFIG_SYS_FSL_DDR_SDRAM_BASE_PHY	0
+#define CONFIG_SYS_SDRAM_BASE		CONFIG_SYS_DDR_SDRAM_BASE
+#define CONFIG_SYS_DDR_BLOCK2_BASE	0x8080000000ULL
+
+/* Generic Timer Definitions */
+#define COUNTER_FREQUENCY		12000000	/* 12MHz */
+
+/* Size of malloc() pool */
+#define CONFIG_SYS_MALLOC_LEN		(CONFIG_ENV_SIZE + 128 * 1024)
+
+/* I2C */
+#define CONFIG_CMD_I2C
+#define CONFIG_SYS_I2C
+#define CONFIG_SYS_I2C_MXC
+#define CONFIG_SYS_MXC_I2C1_SPEED	40000000
+#define CONFIG_SYS_MXC_I2C2_SPEED	40000000
+
+/* Serial Port */
+#define CONFIG_CONS_INDEX       2
+#define CONFIG_SYS_NS16550
+#define CONFIG_SYS_NS16550_SERIAL
+#define CONFIG_SYS_NS16550_REG_SIZE     1
+#define CONFIG_SYS_NS16550_CLK          (get_bus_freq(0)/2)
+
+#define CONFIG_BAUDRATE			115200
+#define CONFIG_SYS_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200 }
+
+/* IFC */
+#define CONFIG_FSL_IFC
+#define CONFIG_SYS_NOR0_CSPR_EXT	(0x0)
+#define CONFIG_SYS_NOR_AMASK	IFC_AMASK(128*1024*1024)
+/*
+ * During booting, CS0 needs to be at the region of 0x30000000, i.e. the IFC
+ * address 0. But this region is limited to 256MB. To accommodate bigger NOR
+ * flash and other devices, we will map CS0 to 0x580000000 after relocation.
+ * CONFIG_SYS_FLASH_BASE has the final address (core view)
+ * CONFIG_SYS_FLASH_BASE_PHYS has the final address (IFC view)
+ * CONFIG_SYS_FLASH_BASE_PHYS_EARLY has the temporary IFC address
+ * CONFIG_SYS_TEXT_BASE is linked to 0x30000000 for booting
+ */
+#define CONFIG_SYS_FLASH_BASE			0x580000000ULL
+#define CONFIG_SYS_FLASH_BASE_PHYS		0x80000000
+#define CONFIG_SYS_FLASH_BASE_PHYS_EARLY	0x00000000
+
+/*
+ * NOR Flash Timing Params
+ */
+#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(0x1) | \
+				FTIM0_NOR_TEADC(0x1) | \
+				FTIM0_NOR_TEAHC(0x1))
+#define CONFIG_SYS_NOR_FTIM1	(FTIM1_NOR_TACO(0x1) | \
+				FTIM1_NOR_TRAD_NOR(0x1))
+#define CONFIG_SYS_NOR_FTIM2	(FTIM2_NOR_TCS(0x0) | \
+				FTIM2_NOR_TCH(0x0) | \
+				FTIM2_NOR_TWP(0x1))
+#define CONFIG_SYS_NOR_FTIM3	0x04000000
+#define CONFIG_SYS_IFC_CCR	0x01000000
+
+#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
+
+/* MC firmware */
+#define CONFIG_FSL_MC_ENET
+#define CONFIG_SYS_LS_MC_DRAM_BLOCK_MIN_SIZE	(512UL * 1024 * 1024)
+#define CONFIG_SYS_LS_MC_FW_IN_NOR
+#define CONFIG_SYS_LS_MC_FW_ADDR	0x580200000ULL
+/* TODO Actual FW length needs to be determined at runtime from FW header */
+#define CONFIG_SYS_LS_MC_FW_LENGTH	(4U * 1024 * 1024)
+#define CONFIG_SYS_LS_MC_DPL_IN_NOR
+#define CONFIG_SYS_LS_MC_DPL_ADDR	0x5806C0000ULL
+/* TODO Actual DPL max length needs to be confirmed with the MC FW team */
+#define CONFIG_SYS_LS_MC_DPL_LENGTH	4096
+#define CONFIG_SYS_LS_MC_DRAM_DPL_OFFSET    0xe00000
+
+/* Carve the MC private DRAM block from the end of DRAM */
+#ifdef CONFIG_FSL_MC_ENET
+#define CONFIG_SYS_MEM_TOP_HIDE		mc_get_dram_block_size()
+#endif
+
+/* Command line configuration */
+#define CONFIG_CMD_CACHE
+#define CONFIG_CMD_BDI
+#define CONFIG_CMD_DHCP
+#define CONFIG_CMD_ENV
+#define CONFIG_CMD_FLASH
+#define CONFIG_CMD_IMI
+#define CONFIG_CMD_MEMORY
+#define CONFIG_CMD_MII
+#define CONFIG_CMD_NET
+#define CONFIG_CMD_PING
+#define CONFIG_CMD_SAVEENV
+#define CONFIG_CMD_RUN
+#define CONFIG_CMD_BOOTD
+#define CONFIG_CMD_ECHO
+#define CONFIG_CMD_SOURCE
+#define CONFIG_CMD_FAT
+#define CONFIG_DOS_PARTITION
+
+/* Miscellaneous configurable options */
+#define CONFIG_SYS_LOAD_ADDR	(CONFIG_SYS_DDR_SDRAM_BASE + 0x10000000)
+
+/* Physical Memory Map */
+/* fixme: these need to be checked against the board */
+#define CONFIG_CHIP_SELECTS_PER_CTRL	4
+#define CONFIG_SYS_CLK_FREQ	133333333
+
+
+#define CONFIG_NR_DRAM_BANKS		2
+
+#define CONFIG_SYS_HZ			1000
+
+#define CONFIG_HWCONFIG
+#define HWCONFIG_BUFFER_SIZE		128
+
+#define CONFIG_DISPLAY_CPUINFO
+
+/* Initial environment variables */
+#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=0xffffffffffffffff\0"		\
+	"initrd_high=0xffffffffffffffff\0"	\
+	"kernel_start=0x581200000\0"		\
+	"kernel_load=0x806f0000\0"		\
+	"kernel_size=0x1000000\0"		\
+	"console=ttyAMA0,38400n8\0"
+
+#define CONFIG_BOOTARGS			"console=ttyS1,115200 root=/dev/ram0 " \
+					"earlyprintk=uart8250-8bit,0x21c0600"
+#define CONFIG_BOOTCOMMAND		"cp.b $kernel_start $kernel_load "     \
+					"$kernel_size && bootm $kernel_load"
+#define CONFIG_BOOTDELAY		1
+
+/* Store environment at top of flash */
+#define CONFIG_ENV_IS_NOWHERE		1
+#define CONFIG_ENV_SIZE			0x1000
+
+/* Monitor Command Prompt */
+#define CONFIG_SYS_CBSIZE		512	/* Console I/O Buffer Size */
+#define CONFIG_SYS_PROMPT		"> "
+#define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE + \
+					sizeof(CONFIG_SYS_PROMPT) + 16)
+#define CONFIG_SYS_HUSH_PARSER
+#define CONFIG_SYS_PROMPT_HUSH_PS2	"> "
+#define CONFIG_SYS_BARGSIZE		CONFIG_SYS_CBSIZE /* Boot args buffer */
+#define CONFIG_SYS_LONGHELP
+#define CONFIG_CMDLINE_EDITING		1
+#define CONFIG_SYS_MAXARGS		64	/* max command args */
+
+#ifndef __ASSEMBLY__
+unsigned long mc_get_dram_block_size(void);
+#endif
+
+#endif /* __LS2_COMMON_H */

include/configs/ls2085a_emu.h

@@ -0,0 +1,19 @@
+/*
+ * Copyright 2014 Freescale Semiconductor
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __LS2_EMU_H
+#define __LS2_EMU_H
+
+#include "ls2085a_common.h"
+
+#define CONFIG_DDR_SPD
+#define CONFIG_SYS_FSL_DDR_EMU		/* Support emulator */
+#define SPD_EEPROM_ADDRESS1	0x51
+#define SPD_EEPROM_ADDRESS2	0x52
+#define SPD_EEPROM_ADDRESS	SPD_EEPROM_ADDRESS1
+#define CONFIG_SYS_SPD_BUS_NUM	1	/* SPD on I2C bus 1 */
+
+#endif /* __LS2_EMU_H */

include/configs/ls2085a_simu.h

@@ -0,0 +1,16 @@
+/*
+ * Copyright (C) 2014 Freescale Semiconductor
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __LS2_SIMU_H
+#define __LS2_SIMU_H
+
+#include "ls2085a_common.h"
+
+/* SMSC 91C111 ethernet configuration */
+#define CONFIG_SMC91111
+#define CONFIG_SMC91111_BASE	(0x2210000)
+
+#endif /* __LS2_SIMU_H */