15 files changed, 1387 insertions, 91 deletions

diff --git a/board/compulab/cm_fx6/Kconfig b/board/compulab/cm_fx6/Kconfig
new file mode 100644
index 0000000..42a8438
--- /dev/null
+++ b/board/compulab/cm_fx6/Kconfig
@@ -0,0 +1,23 @@
+if TARGET_CM_FX6
+
+config SYS_CPU
+	string
+	default "armv7"
+
+config SYS_BOARD
+	string
+	default "cm_fx6"
+
+config SYS_VENDOR
+	string
+	default "compulab"
+
+config SYS_SOC
+	string
+	default "mx6"
+
+config SYS_CONFIG_NAME
+	string
+	default "cm_fx6"
+
+endif
diff --git a/board/compulab/cm_fx6/MAINTAINERS b/board/compulab/cm_fx6/MAINTAINERS
new file mode 100644
index 0000000..5b2623a
--- /dev/null
+++ b/board/compulab/cm_fx6/MAINTAINERS
@@ -0,0 +1,6 @@
+CM_FX6 BOARD
+M:	Nikita Kiryanov <nikita@compulab.co.il>
+S:	Maintained
+F:	board/compulab/cm_fx6/
+F:	include/configs/cm_fx6.h
+F:	configs/cm_fx6_defconfig
diff --git a/board/compulab/cm_fx6/Makefile b/board/compulab/cm_fx6/Makefile
new file mode 100644
index 0000000..3e5c903
--- /dev/null
+++ b/board/compulab/cm_fx6/Makefile
@@ -0,0 +1,12 @@
+#
+# (C) Copyright 2014 CompuLab, Ltd. <www.compulab.co.il>
+#
+# Authors: Nikita Kiryanov <nikita@compulab.co.il>
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+ifdef CONFIG_SPL_BUILD
+obj-y = common.o spl.o
+else
+obj-y = common.o cm_fx6.o
+endif
diff --git a/board/compulab/cm_fx6/cm_fx6.c b/board/compulab/cm_fx6/cm_fx6.c
new file mode 100644
index 0000000..fdb8ebf
--- /dev/null
+++ b/board/compulab/cm_fx6/cm_fx6.c
@@ -0,0 +1,483 @@
+/*
+ * Board functions for Compulab CM-FX6 board
+ *
+ * Copyright (C) 2014, Compulab Ltd - http://compulab.co.il/
+ *
+ * Author: Nikita Kiryanov <nikita@compulab.co.il>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <fsl_esdhc.h>
+#include <miiphy.h>
+#include <netdev.h>
+#include <fdt_support.h>
+#include <sata.h>
+#include <asm/arch/crm_regs.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/iomux.h>
+#include <asm/imx-common/mxc_i2c.h>
+#include <asm/imx-common/sata.h>
+#include <asm/io.h>
+#include <asm/gpio.h>
+#include "common.h"
+#include "../common/eeprom.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_DWC_AHSATA
+static int cm_fx6_issd_gpios[] = {
+	/* The order of the GPIOs in the array is important! */
+	CM_FX6_SATA_PHY_SLP,
+	CM_FX6_SATA_NRSTDLY,
+	CM_FX6_SATA_PWREN,
+	CM_FX6_SATA_NSTANDBY1,
+	CM_FX6_SATA_NSTANDBY2,
+	CM_FX6_SATA_LDO_EN,
+};
+
+static void cm_fx6_sata_power(int on)
+{
+	int i;
+
+	if (!on) { /* tell the iSSD that the power will be removed */
+		gpio_direction_output(CM_FX6_SATA_PWLOSS_INT, 1);
+		mdelay(10);
+	}
+
+	for (i = 0; i < ARRAY_SIZE(cm_fx6_issd_gpios); i++) {
+		gpio_direction_output(cm_fx6_issd_gpios[i], on);
+		udelay(100);
+	}
+
+	if (!on) /* for compatibility lower the power loss interrupt */
+		gpio_direction_output(CM_FX6_SATA_PWLOSS_INT, 0);
+}
+
+static iomux_v3_cfg_t const sata_pads[] = {
+	/* SATA PWR */
+	IOMUX_PADS(PAD_ENET_TX_EN__GPIO1_IO28 | MUX_PAD_CTRL(NO_PAD_CTRL)),
+	IOMUX_PADS(PAD_EIM_A22__GPIO2_IO16    | MUX_PAD_CTRL(NO_PAD_CTRL)),
+	IOMUX_PADS(PAD_EIM_D20__GPIO3_IO20    | MUX_PAD_CTRL(NO_PAD_CTRL)),
+	IOMUX_PADS(PAD_EIM_A25__GPIO5_IO02    | MUX_PAD_CTRL(NO_PAD_CTRL)),
+	/* SATA CTRL */
+	IOMUX_PADS(PAD_ENET_TXD0__GPIO1_IO30  | MUX_PAD_CTRL(NO_PAD_CTRL)),
+	IOMUX_PADS(PAD_EIM_D23__GPIO3_IO23    | MUX_PAD_CTRL(NO_PAD_CTRL)),
+	IOMUX_PADS(PAD_EIM_D29__GPIO3_IO29    | MUX_PAD_CTRL(NO_PAD_CTRL)),
+	IOMUX_PADS(PAD_EIM_A23__GPIO6_IO06    | MUX_PAD_CTRL(NO_PAD_CTRL)),
+	IOMUX_PADS(PAD_EIM_BCLK__GPIO6_IO31   | MUX_PAD_CTRL(NO_PAD_CTRL)),
+};
+
+static void cm_fx6_setup_issd(void)
+{
+	SETUP_IOMUX_PADS(sata_pads);
+	/* Make sure this gpio has logical 0 value */
+	gpio_direction_output(CM_FX6_SATA_PWLOSS_INT, 0);
+	udelay(100);
+
+	cm_fx6_sata_power(0);
+	mdelay(250);
+	cm_fx6_sata_power(1);
+}
+
+#define CM_FX6_SATA_INIT_RETRIES	10
+int sata_initialize(void)
+{
+	int err, i;
+
+	cm_fx6_setup_issd();
+	for (i = 0; i < CM_FX6_SATA_INIT_RETRIES; i++) {
+		err = setup_sata();
+		if (err) {
+			printf("SATA setup failed: %d\n", err);
+			return err;
+		}
+
+		udelay(100);
+
+		err = __sata_initialize();
+		if (!err)
+			break;
+
+		/* There is no device on the SATA port */
+		if (sata_port_status(0, 0) == 0)
+			break;
+
+		/* There's a device, but link not established. Retry */
+	}
+
+	return err;
+}
+#endif
+
+#ifdef CONFIG_SYS_I2C_MXC
+#define I2C_PAD_CTRL	(PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
+			PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
+			PAD_CTL_ODE | PAD_CTL_SRE_FAST)
+
+I2C_PADS(i2c0_pads,
+	 PAD_EIM_D21__I2C1_SCL | MUX_PAD_CTRL(I2C_PAD_CTRL),
+	 PAD_EIM_D21__GPIO3_IO21 | MUX_PAD_CTRL(I2C_PAD_CTRL),
+	 IMX_GPIO_NR(3, 21),
+	 PAD_EIM_D28__I2C1_SDA | MUX_PAD_CTRL(I2C_PAD_CTRL),
+	 PAD_EIM_D28__GPIO3_IO28 | MUX_PAD_CTRL(I2C_PAD_CTRL),
+	 IMX_GPIO_NR(3, 28));
+
+I2C_PADS(i2c1_pads,
+	 PAD_KEY_COL3__I2C2_SCL | MUX_PAD_CTRL(I2C_PAD_CTRL),
+	 PAD_KEY_COL3__GPIO4_IO12 | MUX_PAD_CTRL(I2C_PAD_CTRL),
+	 IMX_GPIO_NR(4, 12),
+	 PAD_KEY_ROW3__I2C2_SDA | MUX_PAD_CTRL(I2C_PAD_CTRL),
+	 PAD_KEY_ROW3__GPIO4_IO13 | MUX_PAD_CTRL(I2C_PAD_CTRL),
+	 IMX_GPIO_NR(4, 13));
+
+I2C_PADS(i2c2_pads,
+	 PAD_GPIO_3__I2C3_SCL | MUX_PAD_CTRL(I2C_PAD_CTRL),
+	 PAD_GPIO_3__GPIO1_IO03 | MUX_PAD_CTRL(I2C_PAD_CTRL),
+	 IMX_GPIO_NR(1, 3),
+	 PAD_GPIO_6__I2C3_SDA | MUX_PAD_CTRL(I2C_PAD_CTRL),
+	 PAD_GPIO_6__GPIO1_IO06 | MUX_PAD_CTRL(I2C_PAD_CTRL),
+	 IMX_GPIO_NR(1, 6));
+
+
+static void cm_fx6_setup_i2c(void)
+{
+	setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, I2C_PADS_INFO(i2c0_pads));
+	setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, I2C_PADS_INFO(i2c1_pads));
+	setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, I2C_PADS_INFO(i2c2_pads));
+}
+#else
+static void cm_fx6_setup_i2c(void) { }
+#endif
+
+#ifdef CONFIG_USB_EHCI_MX6
+#define WEAK_PULLDOWN	(PAD_CTL_PUS_100K_DOWN |		\
+			PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm |	\
+			PAD_CTL_HYS | PAD_CTL_SRE_SLOW)
+
+static int cm_fx6_usb_hub_reset(void)
+{
+	int err;
+
+	err = gpio_request(CM_FX6_USB_HUB_RST, "usb hub rst");
+	if (err) {
+		printf("USB hub rst gpio request failed: %d\n", err);
+		return -1;
+	}
+
+	SETUP_IOMUX_PAD(PAD_SD3_RST__GPIO7_IO08 | MUX_PAD_CTRL(NO_PAD_CTRL));
+	gpio_direction_output(CM_FX6_USB_HUB_RST, 0);
+	udelay(10);
+	gpio_direction_output(CM_FX6_USB_HUB_RST, 1);
+	mdelay(1);
+
+	return 0;
+}
+
+static int cm_fx6_init_usb_otg(void)
+{
+	int ret;
+	struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
+
+	ret = gpio_request(SB_FX6_USB_OTG_PWR, "usb-pwr");
+	if (ret) {
+		printf("USB OTG pwr gpio request failed: %d\n", ret);
+		return ret;
+	}
+
+	SETUP_IOMUX_PAD(PAD_EIM_D22__GPIO3_IO22 | MUX_PAD_CTRL(NO_PAD_CTRL));
+	SETUP_IOMUX_PAD(PAD_ENET_RX_ER__USB_OTG_ID |
+						MUX_PAD_CTRL(WEAK_PULLDOWN));
+	clrbits_le32(&iomux->gpr[1], IOMUXC_GPR1_OTG_ID_MASK);
+	/* disable ext. charger detect, or it'll affect signal quality at dp. */
+	return gpio_direction_output(SB_FX6_USB_OTG_PWR, 0);
+}
+
+#define MX6_USBNC_BASEADDR	0x2184800
+#define USBNC_USB_H1_PWR_POL	(1 << 9)
+int board_ehci_hcd_init(int port)
+{
+	u32 *usbnc_usb_uh1_ctrl = (u32 *)(MX6_USBNC_BASEADDR + 4);
+
+	switch (port) {
+	case 0:
+		return cm_fx6_init_usb_otg();
+	case 1:
+		SETUP_IOMUX_PAD(PAD_GPIO_0__USB_H1_PWR |
+				MUX_PAD_CTRL(NO_PAD_CTRL));
+
+		/* Set PWR polarity to match power switch's enable polarity */
+		setbits_le32(usbnc_usb_uh1_ctrl, USBNC_USB_H1_PWR_POL);
+		return cm_fx6_usb_hub_reset();
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+int board_ehci_power(int port, int on)
+{
+	if (port == 0)
+		return gpio_direction_output(SB_FX6_USB_OTG_PWR, on);
+
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_FEC_MXC
+#define ENET_PAD_CTRL		(PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
+				 PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
+
+static int mx6_rgmii_rework(struct phy_device *phydev)
+{
+	unsigned short val;
+
+	/* Ar8031 phy SmartEEE feature cause link status generates glitch,
+	 * which cause ethernet link down/up issue, so disable SmartEEE
+	 */
+	phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x3);
+	phy_write(phydev, MDIO_DEVAD_NONE, 0xe, 0x805d);
+	phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x4003);
+	val = phy_read(phydev, MDIO_DEVAD_NONE, 0xe);
+	val &= ~(0x1 << 8);
+	phy_write(phydev, MDIO_DEVAD_NONE, 0xe, val);
+
+	/* To enable AR8031 ouput a 125MHz clk from CLK_25M */
+	phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x7);
+	phy_write(phydev, MDIO_DEVAD_NONE, 0xe, 0x8016);
+	phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x4007);
+
+	val = phy_read(phydev, MDIO_DEVAD_NONE, 0xe);
+	val &= 0xffe3;
+	val |= 0x18;
+	phy_write(phydev, MDIO_DEVAD_NONE, 0xe, val);
+
+	/* introduce tx clock delay */
+	phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x5);
+	val = phy_read(phydev, MDIO_DEVAD_NONE, 0x1e);
+	val |= 0x0100;
+	phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, val);
+
+	return 0;
+}
+
+int board_phy_config(struct phy_device *phydev)
+{
+	mx6_rgmii_rework(phydev);
+
+	if (phydev->drv->config)
+		return phydev->drv->config(phydev);
+
+	return 0;
+}
+
+static iomux_v3_cfg_t const enet_pads[] = {
+	IOMUX_PADS(PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_ENET_MDC__ENET_MDC   | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_GPIO_0__CCM_CLKO1    | MUX_PAD_CTRL(NO_PAD_CTRL)),
+	IOMUX_PADS(PAD_GPIO_3__CCM_CLKO2    | MUX_PAD_CTRL(NO_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD4_DAT0__GPIO2_IO08 | MUX_PAD_CTRL(0x84)),
+	IOMUX_PADS(PAD_ENET_REF_CLK__ENET_TX_CLK  |
+						MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_TX_CTL__RGMII_TX_CTL |
+						MUX_PAD_CTRL(ENET_PAD_CTRL)),
+	IOMUX_PADS(PAD_RGMII_RX_CTL__RGMII_RX_CTL |
+						MUX_PAD_CTRL(ENET_PAD_CTRL)),
+};
+
+static int handle_mac_address(void)
+{
+	unsigned char enetaddr[6];
+	int rc;
+
+	rc = eth_getenv_enetaddr("ethaddr", enetaddr);
+	if (rc)
+		return 0;
+
+	rc = cl_eeprom_read_mac_addr(enetaddr);
+	if (rc)
+		return rc;
+
+	if (!is_valid_ether_addr(enetaddr))
+		return -1;
+
+	return eth_setenv_enetaddr("ethaddr", enetaddr);
+}
+
+int board_eth_init(bd_t *bis)
+{
+	int res = handle_mac_address();
+	if (res)
+		puts("No MAC address found\n");
+
+	SETUP_IOMUX_PADS(enet_pads);
+	/* phy reset */
+	gpio_direction_output(CM_FX6_ENET_NRST, 0);
+	udelay(500);
+	gpio_set_value(CM_FX6_ENET_NRST, 1);
+	enable_enet_clk(1);
+	return cpu_eth_init(bis);
+}
+#endif
+
+#ifdef CONFIG_NAND_MXS
+static iomux_v3_cfg_t const nand_pads[] = {
+	IOMUX_PADS(PAD_NANDF_CLE__NAND_CLE     | MUX_PAD_CTRL(NO_PAD_CTRL)),
+	IOMUX_PADS(PAD_NANDF_ALE__NAND_ALE     | MUX_PAD_CTRL(NO_PAD_CTRL)),
+	IOMUX_PADS(PAD_NANDF_CS0__NAND_CE0_B   | MUX_PAD_CTRL(NO_PAD_CTRL)),
+	IOMUX_PADS(PAD_NANDF_RB0__NAND_READY_B | MUX_PAD_CTRL(NO_PAD_CTRL)),
+	IOMUX_PADS(PAD_NANDF_D0__NAND_DATA00   | MUX_PAD_CTRL(NO_PAD_CTRL)),
+	IOMUX_PADS(PAD_NANDF_D1__NAND_DATA01   | MUX_PAD_CTRL(NO_PAD_CTRL)),
+	IOMUX_PADS(PAD_NANDF_D2__NAND_DATA02   | MUX_PAD_CTRL(NO_PAD_CTRL)),
+	IOMUX_PADS(PAD_NANDF_D3__NAND_DATA03   | MUX_PAD_CTRL(NO_PAD_CTRL)),
+	IOMUX_PADS(PAD_NANDF_D4__NAND_DATA04   | MUX_PAD_CTRL(NO_PAD_CTRL)),
+	IOMUX_PADS(PAD_NANDF_D5__NAND_DATA05   | MUX_PAD_CTRL(NO_PAD_CTRL)),
+	IOMUX_PADS(PAD_NANDF_D6__NAND_DATA06   | MUX_PAD_CTRL(NO_PAD_CTRL)),
+	IOMUX_PADS(PAD_NANDF_D7__NAND_DATA07   | MUX_PAD_CTRL(NO_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD4_CMD__NAND_RE_B      | MUX_PAD_CTRL(NO_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD4_CLK__NAND_WE_B      | MUX_PAD_CTRL(NO_PAD_CTRL)),
+};
+
+static void cm_fx6_setup_gpmi_nand(void)
+{
+	SETUP_IOMUX_PADS(nand_pads);
+	/* Enable clock roots */
+	enable_usdhc_clk(1, 3);
+	enable_usdhc_clk(1, 4);
+
+	setup_gpmi_io_clk(MXC_CCM_CS2CDR_ENFC_CLK_PODF(0xf) |
+			  MXC_CCM_CS2CDR_ENFC_CLK_PRED(1)   |
+			  MXC_CCM_CS2CDR_ENFC_CLK_SEL(0));
+}
+#else
+static void cm_fx6_setup_gpmi_nand(void) {}
+#endif
+
+#ifdef CONFIG_FSL_ESDHC
+static struct fsl_esdhc_cfg usdhc_cfg[3] = {
+	{USDHC1_BASE_ADDR},
+	{USDHC2_BASE_ADDR},
+	{USDHC3_BASE_ADDR},
+};
+
+static enum mxc_clock usdhc_clk[3] = {
+	MXC_ESDHC_CLK,
+	MXC_ESDHC2_CLK,
+	MXC_ESDHC3_CLK,
+};
+
+int board_mmc_init(bd_t *bis)
+{
+	int i;
+
+	cm_fx6_set_usdhc_iomux();
+	for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
+		usdhc_cfg[i].sdhc_clk = mxc_get_clock(usdhc_clk[i]);
+		usdhc_cfg[i].max_bus_width = 4;
+		fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
+		enable_usdhc_clk(1, i);
+	}
+
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_OF_BOARD_SETUP
+void ft_board_setup(void *blob, bd_t *bd)
+{
+	uint8_t enetaddr[6];
+
+	/* MAC addr */
+	if (eth_getenv_enetaddr("ethaddr", enetaddr)) {
+		fdt_find_and_setprop(blob, "/fec", "local-mac-address",
+				     enetaddr, 6, 1);
+	}
+}
+#endif
+
+int board_init(void)
+{
+	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
+	cm_fx6_setup_gpmi_nand();
+	cm_fx6_setup_i2c();
+
+	return 0;
+}
+
+int checkboard(void)
+{
+	puts("Board: CM-FX6\n");
+	return 0;
+}
+
+void dram_init_banksize(void)
+{
+	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+	gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
+
+	switch (gd->ram_size) {
+	case 0x10000000: /* DDR_16BIT_256MB */
+		gd->bd->bi_dram[0].size = 0x10000000;
+		gd->bd->bi_dram[1].size = 0;
+		break;
+	case 0x20000000: /* DDR_32BIT_512MB */
+		gd->bd->bi_dram[0].size = 0x20000000;
+		gd->bd->bi_dram[1].size = 0;
+		break;
+	case 0x40000000:
+		if (is_cpu_type(MXC_CPU_MX6SOLO)) { /* DDR_32BIT_1GB */
+			gd->bd->bi_dram[0].size = 0x20000000;
+			gd->bd->bi_dram[1].size = 0x20000000;
+		} else { /* DDR_64BIT_1GB */
+			gd->bd->bi_dram[0].size = 0x40000000;
+			gd->bd->bi_dram[1].size = 0;
+		}
+		break;
+	case 0x80000000: /* DDR_64BIT_2GB */
+		gd->bd->bi_dram[0].size = 0x40000000;
+		gd->bd->bi_dram[1].size = 0x40000000;
+		break;
+	case 0xEFF00000: /* DDR_64BIT_4GB */
+		gd->bd->bi_dram[0].size = 0x70000000;
+		gd->bd->bi_dram[1].size = 0x7FF00000;
+		break;
+	}
+}
+
+int dram_init(void)
+{
+	gd->ram_size = imx_ddr_size();
+	switch (gd->ram_size) {
+	case 0x10000000:
+	case 0x20000000:
+	case 0x40000000:
+	case 0x80000000:
+		break;
+	case 0xF0000000:
+		gd->ram_size -= 0x100000;
+		break;
+	default:
+		printf("ERROR: Unsupported DRAM size 0x%lx\n", gd->ram_size);
+		return -1;
+	}
+
+	return 0;
+}
+
+u32 get_board_rev(void)
+{
+	return cl_eeprom_get_board_rev();
+}
+
diff --git a/board/compulab/cm_fx6/common.c b/board/compulab/cm_fx6/common.c
new file mode 100644
index 0000000..1f39679
--- /dev/null
+++ b/board/compulab/cm_fx6/common.c
@@ -0,0 +1,84 @@
+/*
+ * Code used by both U-Boot and SPL for Compulab CM-FX6
+ *
+ * Copyright (C) 2014, Compulab Ltd - http://compulab.co.il/
+ *
+ * Author: Nikita Kiryanov <nikita@compulab.co.il>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/gpio.h>
+#include <fsl_esdhc.h>
+#include "common.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_FSL_ESDHC
+#define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP |			\
+	PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm |			\
+	PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
+
+static iomux_v3_cfg_t const usdhc_pads[] = {
+	IOMUX_PADS(PAD_SD1_CLK__SD1_CLK    | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD1_CMD__SD1_CMD    | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD1_DAT0__SD1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD1_DAT1__SD1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD1_DAT2__SD1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD1_DAT3__SD1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+
+	IOMUX_PADS(PAD_SD2_CLK__SD2_CLK    | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD2_CMD__SD2_CMD    | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD2_DAT1__SD2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD2_DAT2__SD2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD2_DAT3__SD2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+
+	IOMUX_PADS(PAD_SD3_CLK__SD3_CLK    | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD3_CMD__SD3_CMD    | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD3_DAT4__SD3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD3_DAT5__SD3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD3_DAT6__SD3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+	IOMUX_PADS(PAD_SD3_DAT7__SD3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
+};
+
+void cm_fx6_set_usdhc_iomux(void)
+{
+	SETUP_IOMUX_PADS(usdhc_pads);
+}
+
+/* CINS bit doesn't work, so always try to access the MMC card */
+int board_mmc_getcd(struct mmc *mmc)
+{
+	return 1;
+}
+#endif
+
+#ifdef CONFIG_MXC_SPI
+#define ECSPI_PAD_CTRL (PAD_CTL_SRE_FAST | PAD_CTL_SPEED_MED | \
+		PAD_CTL_PUS_100K_DOWN | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
+
+static iomux_v3_cfg_t const ecspi_pads[] = {
+	IOMUX_PADS(PAD_EIM_D16__ECSPI1_SCLK | MUX_PAD_CTRL(ECSPI_PAD_CTRL)),
+	IOMUX_PADS(PAD_EIM_D17__ECSPI1_MISO | MUX_PAD_CTRL(ECSPI_PAD_CTRL)),
+	IOMUX_PADS(PAD_EIM_D18__ECSPI1_MOSI | MUX_PAD_CTRL(ECSPI_PAD_CTRL)),
+	IOMUX_PADS(PAD_EIM_EB2__GPIO2_IO30  | MUX_PAD_CTRL(ECSPI_PAD_CTRL)),
+	IOMUX_PADS(PAD_EIM_D19__ECSPI1_SS1  | MUX_PAD_CTRL(ECSPI_PAD_CTRL)),
+};
+
+void cm_fx6_set_ecspi_iomux(void)
+{
+	SETUP_IOMUX_PADS(ecspi_pads);
+}
+
+int board_spi_cs_gpio(unsigned bus, unsigned cs)
+{
+	return (bus == 0 && cs == 0) ? (CM_FX6_ECSPI_BUS0_CS0) : -1;
+}
+#endif
diff --git a/board/compulab/cm_fx6/common.h b/board/compulab/cm_fx6/common.h
new file mode 100644
index 0000000..76097f8
--- /dev/null
+++ b/board/compulab/cm_fx6/common.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2014, Compulab Ltd - http://compulab.co.il/
+ *
+ * Author: Nikita Kiryanov <nikita@compulab.co.il>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <asm/arch/mx6-pins.h>
+#include <asm/arch/clock.h>
+
+#define UART_PAD_CTRL  (PAD_CTL_PUS_100K_UP |	\
+			PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm |	\
+			PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
+
+#define CM_FX6_ECSPI_BUS0_CS0	IMX_GPIO_NR(2, 30)
+#define CM_FX6_GREEN_LED	IMX_GPIO_NR(2, 31)
+#define CM_FX6_ENET_NRST	IMX_GPIO_NR(2, 8)
+#define CM_FX6_ENET_NRST	IMX_GPIO_NR(2, 8)
+#define CM_FX6_USB_HUB_RST	IMX_GPIO_NR(7, 8)
+#define SB_FX6_USB_OTG_PWR	IMX_GPIO_NR(3, 22)
+#define CM_FX6_ENET_NRST	IMX_GPIO_NR(2, 8)
+#define CM_FX6_USB_HUB_RST	IMX_GPIO_NR(7, 8)
+#define SB_FX6_USB_OTG_PWR	IMX_GPIO_NR(3, 22)
+#define CM_FX6_SATA_PWREN	IMX_GPIO_NR(1, 28)
+#define CM_FX6_SATA_VDDC_CTRL	IMX_GPIO_NR(1, 30)
+#define CM_FX6_SATA_LDO_EN	IMX_GPIO_NR(2, 16)
+#define CM_FX6_SATA_NSTANDBY1	IMX_GPIO_NR(3, 20)
+#define CM_FX6_SATA_PHY_SLP	IMX_GPIO_NR(3, 23)
+#define CM_FX6_SATA_STBY_REQ	IMX_GPIO_NR(3, 29)
+#define CM_FX6_SATA_NSTANDBY2	IMX_GPIO_NR(5, 2)
+#define CM_FX6_SATA_NRSTDLY	IMX_GPIO_NR(6, 6)
+#define CM_FX6_SATA_PWLOSS_INT	IMX_GPIO_NR(6, 31)
+
+
+void cm_fx6_set_usdhc_iomux(void);
+void cm_fx6_set_ecspi_iomux(void);
diff --git a/board/compulab/cm_fx6/imximage.cfg b/board/compulab/cm_fx6/imximage.cfg
new file mode 100644
index 0000000..420947e
--- /dev/null
+++ b/board/compulab/cm_fx6/imximage.cfg
@@ -0,0 +1,8 @@
+/*
+ * Copyright (C) 2014, Compulab Ltd - http://compulab.co.il/
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+IMAGE_VERSION 2
+BOOT_FROM	sd
diff --git a/board/compulab/cm_fx6/spl.c b/board/compulab/cm_fx6/spl.c
new file mode 100644
index 0000000..3948ba2
--- /dev/null
+++ b/board/compulab/cm_fx6/spl.c
@@ -0,0 +1,366 @@
+/*
+ * SPL specific code for Compulab CM-FX6 board
+ *
+ * Copyright (C) 2014, Compulab Ltd - http://compulab.co.il/
+ *
+ * Author: Nikita Kiryanov <nikita@compulab.co.il>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <spl.h>
+#include <asm/io.h>
+#include <asm/gpio.h>
+#include <asm/arch/mx6-ddr.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/crm_regs.h>
+#include <asm/imx-common/iomux-v3.h>
+#include <fsl_esdhc.h>
+#include "common.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+enum ddr_config {
+	DDR_16BIT_256MB,
+	DDR_32BIT_512MB,
+	DDR_32BIT_1GB,
+	DDR_64BIT_1GB,
+	DDR_64BIT_2GB,
+	DDR_64BIT_4GB,
+	DDR_UNKNOWN,
+};
+
+/*
+ * Below DRAM_RESET[DDR_SEL] = 0 which is incorrect according to
+ * Freescale QRM, but this is exactly the value used by the automatic
+ * calibration script and it works also in all our tests, so we leave
+ * it as is at this point.
+ */
+#define CM_FX6_DDR_IOMUX_CFG \
+	.dram_sdqs0	= 0x00000038, \
+	.dram_sdqs1	= 0x00000038, \
+	.dram_sdqs2	= 0x00000038, \
+	.dram_sdqs3	= 0x00000038, \
+	.dram_sdqs4	= 0x00000038, \
+	.dram_sdqs5	= 0x00000038, \
+	.dram_sdqs6	= 0x00000038, \
+	.dram_sdqs7	= 0x00000038, \
+	.dram_dqm0	= 0x00000038, \
+	.dram_dqm1	= 0x00000038, \
+	.dram_dqm2	= 0x00000038, \
+	.dram_dqm3	= 0x00000038, \
+	.dram_dqm4	= 0x00000038, \
+	.dram_dqm5	= 0x00000038, \
+	.dram_dqm6	= 0x00000038, \
+	.dram_dqm7	= 0x00000038, \
+	.dram_cas	= 0x00000038, \
+	.dram_ras	= 0x00000038, \
+	.dram_sdclk_0	= 0x00000038, \
+	.dram_sdclk_1	= 0x00000038, \
+	.dram_sdcke0	= 0x00003000, \
+	.dram_sdcke1	= 0x00003000, \
+	.dram_reset	= 0x00000038, \
+	.dram_sdba2	= 0x00000000, \
+	.dram_sdodt0	= 0x00000038, \
+	.dram_sdodt1	= 0x00000038,
+
+#define CM_FX6_GPR_IOMUX_CFG \
+	.grp_b0ds	= 0x00000038, \
+	.grp_b1ds	= 0x00000038, \
+	.grp_b2ds	= 0x00000038, \
+	.grp_b3ds	= 0x00000038, \
+	.grp_b4ds	= 0x00000038, \
+	.grp_b5ds	= 0x00000038, \
+	.grp_b6ds	= 0x00000038, \
+	.grp_b7ds	= 0x00000038, \
+	.grp_addds	= 0x00000038, \
+	.grp_ddrmode_ctl = 0x00020000, \
+	.grp_ddrpke	= 0x00000000, \
+	.grp_ddrmode	= 0x00020000, \
+	.grp_ctlds	= 0x00000038, \
+	.grp_ddr_type	= 0x000C0000,
+
+static struct mx6sdl_iomux_ddr_regs ddr_iomux_s = { CM_FX6_DDR_IOMUX_CFG };
+static struct mx6sdl_iomux_grp_regs grp_iomux_s = { CM_FX6_GPR_IOMUX_CFG };
+static struct mx6dq_iomux_ddr_regs ddr_iomux_q = { CM_FX6_DDR_IOMUX_CFG };
+static struct mx6dq_iomux_grp_regs grp_iomux_q = { CM_FX6_GPR_IOMUX_CFG };
+
+static struct mx6_mmdc_calibration cm_fx6_calib_s = {
+	.p0_mpwldectrl0	= 0x005B0061,
+	.p0_mpwldectrl1	= 0x004F0055,
+	.p0_mpdgctrl0	= 0x0314030C,
+	.p0_mpdgctrl1	= 0x025C0268,
+	.p0_mprddlctl	= 0x42464646,
+	.p0_mpwrdlctl	= 0x36322C34,
+};
+
+static struct mx6_ddr_sysinfo cm_fx6_sysinfo_s = {
+	.cs1_mirror	= 1,
+	.cs_density	= 16,
+	.bi_on		= 1,
+	.rtt_nom	= 1,
+	.rtt_wr		= 0,
+	.ralat		= 5,
+	.walat		= 1,
+	.mif3_mode	= 3,
+	.rst_to_cke	= 0x23,
+	.sde_to_rst	= 0x10,
+};
+
+static struct mx6_ddr3_cfg cm_fx6_ddr3_cfg_s = {
+	.mem_speed	= 800,
+	.density	= 4,
+	.rowaddr	= 14,
+	.coladdr	= 10,
+	.pagesz		= 2,
+	.trcd		= 1800,
+	.trcmin		= 5200,
+	.trasmin	= 3600,
+	.SRT		= 0,
+};
+
+static void spl_mx6s_dram_init(enum ddr_config dram_config, bool reset)
+{
+	if (reset)
+		((struct mmdc_p_regs *)MX6_MMDC_P0_MDCTL)->mdmisc = 2;
+
+	switch (dram_config) {
+	case DDR_16BIT_256MB:
+		cm_fx6_sysinfo_s.dsize = 0;
+		cm_fx6_sysinfo_s.ncs = 1;
+		break;
+	case DDR_32BIT_512MB:
+		cm_fx6_sysinfo_s.dsize = 1;
+		cm_fx6_sysinfo_s.ncs = 1;
+		break;
+	case DDR_32BIT_1GB:
+		cm_fx6_sysinfo_s.dsize = 1;
+		cm_fx6_sysinfo_s.ncs = 2;
+		break;
+	default:
+		puts("Tried to setup invalid DDR configuration\n");
+		hang();
+	}
+
+	mx6_dram_cfg(&cm_fx6_sysinfo_s, &cm_fx6_calib_s, &cm_fx6_ddr3_cfg_s);
+	udelay(100);
+}
+
+static struct mx6_mmdc_calibration cm_fx6_calib_q = {
+	.p0_mpwldectrl0	= 0x00630068,
+	.p0_mpwldectrl1	= 0x0068005D,
+	.p0_mpdgctrl0	= 0x04140428,
+	.p0_mpdgctrl1	= 0x037C037C,
+	.p0_mprddlctl	= 0x3C30303A,
+	.p0_mpwrdlctl	= 0x3A344038,
+	.p1_mpwldectrl0	= 0x0035004C,
+	.p1_mpwldectrl1	= 0x00170026,
+	.p1_mpdgctrl0	= 0x0374037C,
+	.p1_mpdgctrl1	= 0x0350032C,
+	.p1_mprddlctl	= 0x30322A3C,
+	.p1_mpwrdlctl	= 0x48304A3E,
+};
+
+static struct mx6_ddr_sysinfo cm_fx6_sysinfo_q = {
+	.cs_density	= 16,
+	.cs1_mirror	= 1,
+	.bi_on		= 1,
+	.rtt_nom	= 1,
+	.rtt_wr		= 0,
+	.ralat		= 5,
+	.walat		= 1,
+	.mif3_mode	= 3,
+	.rst_to_cke	= 0x23,
+	.sde_to_rst	= 0x10,
+};
+
+static struct mx6_ddr3_cfg cm_fx6_ddr3_cfg_q = {
+	.mem_speed	= 1066,
+	.density	= 4,
+	.rowaddr	= 14,
+	.coladdr	= 10,
+	.pagesz		= 2,
+	.trcd		= 1324,
+	.trcmin		= 59500,
+	.trasmin	= 9750,
+	.SRT		= 0,
+};
+
+static void spl_mx6q_dram_init(enum ddr_config dram_config, bool reset)
+{
+	if (reset)
+		((struct mmdc_p_regs *)MX6_MMDC_P0_MDCTL)->mdmisc = 2;
+
+	cm_fx6_ddr3_cfg_q.rowaddr = 14;
+	switch (dram_config) {
+	case DDR_16BIT_256MB:
+		cm_fx6_sysinfo_q.dsize = 0;
+		cm_fx6_sysinfo_q.ncs = 1;
+		break;
+	case DDR_32BIT_512MB:
+		cm_fx6_sysinfo_q.dsize = 1;
+		cm_fx6_sysinfo_q.ncs = 1;
+		break;
+	case DDR_64BIT_1GB:
+		cm_fx6_sysinfo_q.dsize = 2;
+		cm_fx6_sysinfo_q.ncs = 1;
+		break;
+	case DDR_64BIT_2GB:
+		cm_fx6_sysinfo_q.dsize = 2;
+		cm_fx6_sysinfo_q.ncs = 2;
+		break;
+	case DDR_64BIT_4GB:
+		cm_fx6_sysinfo_q.dsize = 2;
+		cm_fx6_sysinfo_q.ncs = 2;
+		cm_fx6_ddr3_cfg_q.rowaddr = 15;
+		break;
+	default:
+		puts("Tried to setup invalid DDR configuration\n");
+		hang();
+	}
+
+	mx6_dram_cfg(&cm_fx6_sysinfo_q, &cm_fx6_calib_q, &cm_fx6_ddr3_cfg_q);
+	udelay(100);
+}
+
+static int cm_fx6_spl_dram_init(void)
+{
+	unsigned long bank1_size, bank2_size;
+
+	switch (get_cpu_type()) {
+	case MXC_CPU_MX6SOLO:
+		mx6sdl_dram_iocfg(64, &ddr_iomux_s, &grp_iomux_s);
+
+		spl_mx6s_dram_init(DDR_32BIT_1GB, false);
+		bank1_size = get_ram_size((long int *)PHYS_SDRAM_1, 0x80000000);
+		if (bank1_size == 0x40000000)
+			return 0;
+
+		if (bank1_size == 0x20000000) {
+			spl_mx6s_dram_init(DDR_32BIT_512MB, true);
+			return 0;
+		}
+
+		spl_mx6s_dram_init(DDR_16BIT_256MB, true);
+		bank1_size = get_ram_size((long int *)PHYS_SDRAM_1, 0x80000000);
+		if (bank1_size == 0x10000000)
+			return 0;
+
+		break;
+	case MXC_CPU_MX6D:
+	case MXC_CPU_MX6Q:
+		mx6dq_dram_iocfg(64, &ddr_iomux_q, &grp_iomux_q);
+
+		spl_mx6q_dram_init(DDR_64BIT_4GB, false);
+		bank1_size = get_ram_size((long int *)PHYS_SDRAM_1, 0x80000000);
+		if (bank1_size == 0x80000000)
+			return 0;
+
+		if (bank1_size == 0x40000000) {
+			bank2_size = get_ram_size((long int *)PHYS_SDRAM_2,
+								0x80000000);
+			if (bank2_size == 0x40000000) {
+				/* Don't do a full reset here */
+				spl_mx6q_dram_init(DDR_64BIT_2GB, false);
+			} else {
+				spl_mx6q_dram_init(DDR_64BIT_1GB, true);
+			}
+
+			return 0;
+		}
+
+		spl_mx6q_dram_init(DDR_32BIT_512MB, true);
+		bank1_size = get_ram_size((long int *)PHYS_SDRAM_1, 0x80000000);
+		if (bank1_size == 0x20000000)
+			return 0;
+
+		spl_mx6q_dram_init(DDR_16BIT_256MB, true);
+		bank1_size = get_ram_size((long int *)PHYS_SDRAM_1, 0x80000000);
+		if (bank1_size == 0x10000000)
+			return 0;
+
+		break;
+	}
+
+	return -1;
+}
+
+static iomux_v3_cfg_t const uart4_pads[] = {
+	IOMUX_PADS(PAD_KEY_COL0__UART4_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
+	IOMUX_PADS(PAD_KEY_ROW0__UART4_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
+};
+
+static void cm_fx6_setup_uart(void)
+{
+	SETUP_IOMUX_PADS(uart4_pads);
+	enable_uart_clk(1);
+}
+
+#ifdef CONFIG_SPL_SPI_SUPPORT
+static void cm_fx6_setup_ecspi(void)
+{
+	cm_fx6_set_ecspi_iomux();
+	enable_cspi_clock(1, 0);
+}
+#else
+static void cm_fx6_setup_ecspi(void) { }
+#endif
+
+void board_init_f(ulong dummy)
+{
+	struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
+
+	gd = &gdata;
+	/*
+	 * We don't use DMA in SPL, but we do need it in U-Boot. U-Boot
+	 * initializes DMA very early (before all board code), so the only
+	 * opportunity we have to initialize APBHDMA clocks is in SPL.
+	 */
+	setbits_le32(&mxc_ccm->CCGR0, MXC_CCM_CCGR0_APBHDMA_MASK);
+	enable_usdhc_clk(1, 2);
+
+	arch_cpu_init();
+	timer_init();
+	cm_fx6_setup_ecspi();
+	cm_fx6_setup_uart();
+	get_clocks();
+	preloader_console_init();
+	gpio_direction_output(CM_FX6_GREEN_LED, 1);
+	if (cm_fx6_spl_dram_init()) {
+		puts("!!!ERROR!!! DRAM detection failed!!!\n");
+		hang();
+	}
+
+	memset(__bss_start, 0, __bss_end - __bss_start);
+	board_init_r(NULL, 0);
+}
+
+void spl_board_init(void)
+{
+	u32 boot_device = spl_boot_device();
+
+	if (boot_device == BOOT_DEVICE_SPI)
+		puts("Booting from SPI flash\n");
+	else if (boot_device == BOOT_DEVICE_MMC1)
+		puts("Booting from MMC\n");
+	else
+		puts("Unknown boot device\n");
+}
+
+#ifdef CONFIG_SPL_MMC_SUPPORT
+static struct fsl_esdhc_cfg usdhc_cfg = {
+	.esdhc_base = USDHC3_BASE_ADDR,
+	.max_bus_width = 4,
+};
+
+int board_mmc_init(bd_t *bis)
+{
+	cm_fx6_set_usdhc_iomux();
+
+	usdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
+
+	return fsl_esdhc_initialize(bis, &usdhc_cfg);
+}
+#endif
diff --git a/board/compulab/common/eeprom.c b/board/compulab/common/eeprom.c
index 20fe3e1..85442cd 100644
--- a/board/compulab/common/eeprom.c
+++ b/board/compulab/common/eeprom.c
@@ -31,8 +31,19 @@ static int cl_eeprom_layout; /* Implicitly LAYOUT_INVALID */
 
 static int cl_eeprom_read(uint offset, uchar *buf, int len)
 {
-	return i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, offset,
+	int res;
+	unsigned int current_i2c_bus = i2c_get_bus_num();
+
+	res = i2c_set_bus_num(CONFIG_SYS_I2C_EEPROM_BUS);
+	if (res < 0)
+		return res;
+
+	res = i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, offset,
 			CONFIG_SYS_I2C_EEPROM_ADDR_LEN, buf, len);
+
+	i2c_set_bus_num(current_i2c_bus);
+
+	return res;
 }
 
 static int cl_eeprom_setup_layout(void)
diff --git a/board/freescale/mx6sabresd/mx6dlsabresd.cfg b/board/freescale/mx6sabresd/mx6dlsabresd.cfg
new file mode 100644
index 0000000..f35f22e
--- /dev/null
+++ b/board/freescale/mx6sabresd/mx6dlsabresd.cfg
@@ -0,0 +1,131 @@
+/*
+ * Copyright (C) 2014 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ *
+ * Refer docs/README.imxmage for more details about how-to configure
+ * and create imximage boot image
+ *
+ * The syntax is taken as close as possible with the kwbimage
+ */
+
+/* image version */
+
+IMAGE_VERSION 2
+
+/*
+ * Boot Device : one of
+ * spi, sd (the board has no nand neither onenand)
+ */
+
+BOOT_FROM	sd
+
+/*
+ * Device Configuration Data (DCD)
+ *
+ * Each entry must have the format:
+ * Addr-type           Address        Value
+ *
+ * where:
+ *	Addr-type register length (1,2 or 4 bytes)
+ *	Address	  absolute address of the register
+ *	value	  value to be stored in the register
+ */
+DATA 4	0x020e0774 0x000C0000
+DATA 4	0x020e0754 0x00000000
+DATA 4	0x020e04ac 0x00000030
+DATA 4	0x020e04b0 0x00000030
+DATA 4	0x020e0464 0x00000030
+DATA 4	0x020e0490 0x00000030
+DATA 4	0x020e074c 0x00000030
+DATA 4	0x020e0494 0x00000030
+DATA 4	0x020e04a0 0x00000000
+DATA 4	0x020e04b4 0x00000030
+DATA 4	0x020e04b8 0x00000030
+DATA 4	0x020e076c 0x00000030
+DATA 4	0x020e0750 0x00020000
+DATA 4	0x020e04bc 0x00000030
+DATA 4	0x020e04c0 0x00000030
+DATA 4	0x020e04c4 0x00000030
+DATA 4	0x020e04c8 0x00000030
+DATA 4	0x020e04cc 0x00000030
+DATA 4	0x020e04d0 0x00000030
+DATA 4	0x020e04d4 0x00000030
+DATA 4	0x020e04d8 0x00000030
+DATA 4	0x020e0760 0x00020000
+DATA 4	0x020e0764 0x00000030
+DATA 4	0x020e0770 0x00000030
+DATA 4	0x020e0778 0x00000030
+DATA 4	0x020e077c 0x00000030
+DATA 4	0x020e0780 0x00000030
+DATA 4	0x020e0784 0x00000030
+DATA 4	0x020e078c 0x00000030
+DATA 4	0x020e0748 0x00000030
+DATA 4	0x020e0470 0x00000030
+DATA 4	0x020e0474 0x00000030
+DATA 4	0x020e0478 0x00000030
+DATA 4	0x020e047c 0x00000030
+DATA 4	0x020e0480 0x00000030
+DATA 4	0x020e0484 0x00000030
+DATA 4	0x020e0488 0x00000030
+DATA 4	0x020e048c 0x00000030
+DATA 4	0x021b0800 0xa1390003
+DATA 4	0x021b080c 0x001F001F
+DATA 4	0x021b0810 0x001F001F
+DATA 4	0x021b480c 0x001F001F
+DATA 4	0x021b4810 0x001F001F
+DATA 4	0x021b083c 0x4220021F
+DATA 4	0x021b0840 0x0207017E
+DATA 4	0x021b483c 0x4201020C
+DATA 4	0x021b4840 0x01660172
+DATA 4	0x021b0848 0x4A4D4E4D
+DATA 4	0x021b4848 0x4A4F5049
+DATA 4	0x021b0850 0x3F3C3D31
+DATA 4	0x021b4850 0x3238372B
+DATA 4	0x021b081c 0x33333333
+DATA 4	0x021b0820 0x33333333
+DATA 4	0x021b0824 0x33333333
+DATA 4	0x021b0828 0x33333333
+DATA 4	0x021b481c 0x33333333
+DATA 4	0x021b4820 0x33333333
+DATA 4	0x021b4824 0x33333333
+DATA 4	0x021b4828 0x33333333
+DATA 4	0x021b08b8 0x00000800
+DATA 4	0x021b48b8 0x00000800
+DATA 4	0x021b0004 0x0002002D
+DATA 4	0x021b0008 0x00333030
+DATA 4	0x021b000c 0x3F435313
+DATA 4	0x021b0010 0xB66E8B63
+DATA 4	0x021b0014 0x01FF00DB
+DATA 4	0x021b0018 0x00001740
+DATA 4	0x021b001c 0x00008000
+DATA 4	0x021b002c 0x000026d2
+DATA 4	0x021b0030 0x00431023
+DATA 4	0x021b0040 0x00000027
+DATA 4	0x021b0000 0x831A0000
+DATA 4	0x021b001c 0x04008032
+DATA 4	0x021b001c 0x00008033
+DATA 4	0x021b001c 0x00048031
+DATA 4	0x021b001c 0x05208030
+DATA 4 0x021b001c 0x04008040
+DATA 4	0x021b0020 0x00005800
+DATA 4	0x021b0818 0x00011117
+DATA 4	0x021b4818 0x00011117
+DATA 4	0x021b0004 0x0002556D
+DATA 4	0x021b0404 0x00011006
+DATA 4	0x021b001c 0x00000000
+
+/* set the default clock gate to save power */
+DATA 4 0x020c4068 0x00C03F3F
+DATA 4 0x020c406c 0x0030FC03
+DATA 4 0x020c4070 0x0FFFC000
+DATA 4 0x020c4074 0x3FF00000
+DATA 4 0x020c4078 0x00FFF300
+DATA 4 0x020c407c 0x0F0000C3
+DATA 4 0x020c4080 0x000003FF
+
+/* enable AXI cache for VDOA/VPU/IPU */
+DATA 4 0x020e0010 0xF00000CF
+/* set IPU AXI-id0 Qos=0xf(bypass) AXI-id1 Qos=0x7 */
+DATA 4 0x020e0018 0x007F007F
+DATA 4 0x020e001c 0x007F007F
diff --git a/board/gateworks/gw_ventana/eeprom.c b/board/gateworks/gw_ventana/eeprom.c
index 3edc915..ab3bab8 100644
--- a/board/gateworks/gw_ventana/eeprom.c
+++ b/board/gateworks/gw_ventana/eeprom.c
@@ -80,6 +80,9 @@ read_eeprom(int bus, struct ventana_board_info *info)
 	case '4':
 		type = GW54xx;
 		break;
+	case '5':
+		type = GW552x;
+		break;
 	default:
 		printf("EEPROM: Unknown model in EEPROM: %s\n", info->model);
 		type = GW_UNKNOWN;
diff --git a/board/gateworks/gw_ventana/gsc.c b/board/gateworks/gw_ventana/gsc.c
index 1cf38d4..a34a9a8 100644
--- a/board/gateworks/gw_ventana/gsc.c
+++ b/board/gateworks/gw_ventana/gsc.c
@@ -117,6 +117,10 @@ int do_gsc(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 		read_hwmon("VDD_SOC",  GSC_HWMON_VDD_SOC, 3, MINMAX(1375, 10));
 		read_hwmon("VDD_1P0",  GSC_HWMON_VDD_1P0, 3, MINMAX(1000, 10));
 		break;
+	case '5': /* GW55xx */
+		read_hwmon("VDD_CORE", GSC_HWMON_VDD_CORE, 3, MINMAX(1175, 10));
+		read_hwmon("VDD_SOC",  GSC_HWMON_VDD_SOC, 3, MINMAX(1175, 10));
+		break;
 	}
 	return 0;
 }
diff --git a/board/gateworks/gw_ventana/gw_ventana.c b/board/gateworks/gw_ventana/gw_ventana.c
index a222921..8d086f8 100644
--- a/board/gateworks/gw_ventana/gw_ventana.c
+++ b/board/gateworks/gw_ventana/gw_ventana.c
@@ -31,6 +31,7 @@
 #include <mmc.h>
 #include <mtd_node.h>
 #include <netdev.h>
+#include <pci.h>
 #include <power/pmic.h>
 #include <power/ltc3676_pmic.h>
 #include <power/pfuze100_pmic.h>
@@ -299,6 +300,7 @@ int board_ehci_hcd_init(int port)
 	/* Reset USB HUB (present on GW54xx/GW53xx) */
 	switch (info->model[3]) {
 	case '3': /* GW53xx */
+	case '5': /* GW552x */
 		SETUP_IOMUX_PAD(PAD_GPIO_9__GPIO1_IO09 | DIO_PAD_CFG);
 		gpio_direction_output(IMX_GPIO_NR(1, 9), 0);
 		mdelay(2);
@@ -392,7 +394,8 @@ int board_eth_init(bd_t *bis)
 	setup_iomux_enet();
 
 #ifdef CONFIG_FEC_MXC
-	cpu_eth_init(bis);
+	if (board_type != GW552x)
+		cpu_eth_init(bis);
 #endif
 
 #ifdef CONFIG_CI_UDC
@@ -614,15 +617,14 @@ static iomux_v3_cfg_t const gw53xx_gpio_pads[] = {
 	IOMUX_PADS(PAD_KEY_COL0__GPIO4_IO06 | DIO_PAD_CFG),
 	/* PANLEDR# */
 	IOMUX_PADS(PAD_KEY_ROW0__GPIO4_IO07 | DIO_PAD_CFG),
+	/* MX6_LOCLED# */
+	IOMUX_PADS(PAD_KEY_ROW4__GPIO4_IO15 | DIO_PAD_CFG),
 	/* IOEXP_PWREN# */
 	IOMUX_PADS(PAD_EIM_A19__GPIO2_IO19 | DIO_PAD_CFG),
 	/* IOEXP_IRQ# */
 	IOMUX_PADS(PAD_EIM_A20__GPIO2_IO18 | MUX_PAD_CTRL(IRQ_PAD_CTRL)),
 	/* DIOI2C_DIS# */
 	IOMUX_PADS(PAD_GPIO_19__GPIO4_IO05 | DIO_PAD_CFG),
-
-	/* MX6_LOCLED# */
-	IOMUX_PADS(PAD_KEY_ROW4__GPIO4_IO15 | DIO_PAD_CFG),
 	/* GPS_SHDN */
 	IOMUX_PADS(PAD_ENET_RXD0__GPIO1_IO27 | DIO_PAD_CFG),
 	/* VID_EN */
@@ -660,6 +662,30 @@ static iomux_v3_cfg_t const gw54xx_gpio_pads[] = {
 	IOMUX_PADS(PAD_DISP0_DAT23__GPIO5_IO17 | DIO_PAD_CFG),
 };
 
+static iomux_v3_cfg_t const gw552x_gpio_pads[] = {
+	/* PANLEDG# */
+	IOMUX_PADS(PAD_KEY_COL0__GPIO4_IO06 | DIO_PAD_CFG),
+	/* PANLEDR# */
+	IOMUX_PADS(PAD_KEY_ROW0__GPIO4_IO07 | DIO_PAD_CFG),
+	/* MX6_LOCLED# */
+	IOMUX_PADS(PAD_KEY_ROW4__GPIO4_IO15 | DIO_PAD_CFG),
+	/* PCI_RST# */
+	IOMUX_PADS(PAD_ENET_TXD1__GPIO1_IO29 | DIO_PAD_CFG),
+	/* MX6_DIO[4:9] */
+	IOMUX_PADS(PAD_CSI0_PIXCLK__GPIO5_IO18 | DIO_PAD_CFG),
+	IOMUX_PADS(PAD_CSI0_DATA_EN__GPIO5_IO20 | DIO_PAD_CFG),
+	IOMUX_PADS(PAD_CSI0_VSYNC__GPIO5_IO21 | DIO_PAD_CFG),
+	IOMUX_PADS(PAD_CSI0_DAT4__GPIO5_IO22 | DIO_PAD_CFG),
+	IOMUX_PADS(PAD_CSI0_DAT5__GPIO5_IO23 | DIO_PAD_CFG),
+	IOMUX_PADS(PAD_CSI0_DAT7__GPIO5_IO25 | DIO_PAD_CFG),
+	/* PCIEGBE1_OFF# */
+	IOMUX_PADS(PAD_GPIO_1__GPIO1_IO01 | DIO_PAD_CFG),
+	/* PCIEGBE2_OFF# */
+	IOMUX_PADS(PAD_GPIO_2__GPIO1_IO02 | DIO_PAD_CFG),
+	/* PCIESKT_WDIS# */
+	IOMUX_PADS(PAD_GPIO_17__GPIO7_IO12 | DIO_PAD_CFG),
+};
+
 /*
  * each baseboard has 4 user configurable Digital IO lines which can
  * be pinmuxed as a GPIO or in some cases a PWM
@@ -908,6 +934,44 @@ struct ventana gpio_cfg[] = {
 		.pcie_sson = IMX_GPIO_NR(1, 20),
 		.wdis = IMX_GPIO_NR(5, 17),
 	},
+
+	/* GW552x */
+	{
+		.gpio_pads = gw552x_gpio_pads,
+		.num_pads = ARRAY_SIZE(gw552x_gpio_pads)/2,
+		.dio_cfg = {
+			{
+				{ IOMUX_PADS(PAD_SD1_DAT0__GPIO1_IO16) },
+				IMX_GPIO_NR(1, 16),
+				{ 0, 0 },
+				0
+			},
+			{
+				{ IOMUX_PADS(PAD_SD1_DAT2__GPIO1_IO19) },
+				IMX_GPIO_NR(1, 19),
+				{ IOMUX_PADS(PAD_SD1_DAT2__PWM2_OUT) },
+				2
+			},
+			{
+				{ IOMUX_PADS(PAD_SD1_DAT1__GPIO1_IO17) },
+				IMX_GPIO_NR(1, 17),
+				{ IOMUX_PADS(PAD_SD1_DAT1__PWM3_OUT) },
+				3
+			},
+			{
+				{ IOMUX_PADS(PAD_SD1_CLK__GPIO1_IO20) },
+				IMX_GPIO_NR(2, 10),
+				{ 0, 0 },
+				0
+			},
+		},
+		.leds = {
+			IMX_GPIO_NR(4, 6),
+			IMX_GPIO_NR(4, 7),
+			IMX_GPIO_NR(4, 15),
+		},
+		.pcie_rst = IMX_GPIO_NR(1, 29),
+	},
 };
 
 /* setup board specific PMIC */
@@ -997,14 +1061,16 @@ static void setup_board_gpio(int board)
 #endif
 
 	/* turn off (active-high) user LED's */
-	for (i = 0; i < 4; i++) {
+	for (i = 0; i < ARRAY_SIZE(gpio_cfg[board].leds); i++) {
 		if (gpio_cfg[board].leds[i])
 			gpio_direction_output(gpio_cfg[board].leds[i], 1);
 	}
 
 	/* Expansion Mezzanine IO */
-	gpio_direction_output(gpio_cfg[board].mezz_pwren, 0);
-	gpio_direction_input(gpio_cfg[board].mezz_irq);
+	if (gpio_cfg[board].mezz_pwren)
+		gpio_direction_output(gpio_cfg[board].mezz_pwren, 0);
+	if (gpio_cfg[board].mezz_irq)
+		gpio_direction_input(gpio_cfg[board].mezz_irq);
 
 	/* RS485 Transmit Enable */
 	if (gpio_cfg[board].rs485en)
@@ -1092,6 +1158,35 @@ int imx6_pcie_toggle_reset(void)
 	}
 	return 0;
 }
+
+/*
+ * Most Ventana boards have a PLX PEX860x PCIe switch onboard and use its
+ * GPIO's as PERST# signals for its downstream ports - configure the GPIO's
+ * properly and assert reset for 100ms.
+ */
+void board_pci_fixup_dev(struct pci_controller *hose, pci_dev_t dev,
+			 unsigned short vendor, unsigned short device,
+			 unsigned short class)
+{
+	u32 dw;
+
+	debug("%s: %02d:%02d.%02d: %04x:%04x\n", __func__,
+	      PCI_BUS(dev), PCI_DEV(dev), PCI_FUNC(dev), vendor, device);
+	if (vendor == PCI_VENDOR_ID_PLX &&
+	    (device & 0xfff0) == 0x8600 &&
+	    PCI_DEV(dev) == 0 && PCI_FUNC(dev) == 0) {
+		debug("configuring PLX 860X downstream PERST#\n");
+		pci_hose_read_config_dword(hose, dev, 0x62c, &dw);
+		dw |= 0xaaa8; /* GPIO1-7 outputs */
+		pci_hose_write_config_dword(hose, dev, 0x62c, dw);
+
+		pci_hose_read_config_dword(hose, dev, 0x644, &dw);
+		dw |= 0xfe;   /* GPIO1-7 output high */
+		pci_hose_write_config_dword(hose, dev, 0x644, dw);
+
+		mdelay(100);
+	}
+}
 #endif /* CONFIG_CMD_PCI */
 
 #ifdef CONFIG_SERIAL_TAG
@@ -1283,6 +1378,7 @@ int misc_init_r(void)
 		else if (is_cpu_type(MXC_CPU_MX6DL) ||
 			 is_cpu_type(MXC_CPU_MX6SOLO))
 			cputype = "imx6dl";
+		setenv("soctype", cputype);
 		if (8 << (ventana_info.nand_flash_size-1) >= 2048)
 			setenv("flash_layout", "large");
 		else
@@ -1305,7 +1401,8 @@ int misc_init_r(void)
 				sprintf(fdt, "%s-%s.dtb", cputype, str);
 				setenv("fdt_file1", fdt);
 			}
-			str[4] = 'x';
+			if (board_type != GW552x)
+				str[4] = 'x';
 			str[5] = 'x';
 			str[6] = 0;
 			if (!getenv("fdt_file2")) {
@@ -1341,10 +1438,11 @@ int misc_init_r(void)
 	 *  The Gateworks System Controller implements a boot
 	 *  watchdog (always enabled) as a workaround for IMX6 boot related
 	 *  errata such as:
-	 *    ERR005768 - no fix
-	 *    ERR006282 - fixed in silicon r1.3
+	 *    ERR005768 - no fix scheduled
+	 *    ERR006282 - fixed in silicon r1.2
 	 *    ERR007117 - fixed in silicon r1.3
 	 *    ERR007220 - fixed in silicon r1.3
+	 *    ERR007926 - no fix scheduled
 	 *  see http://cache.freescale.com/files/32bit/doc/errata/IMX6DQCE.pdf
 	 *
 	 * Disable the boot watchdog and display/clear the timeout flag if set
diff --git a/board/gateworks/gw_ventana/gw_ventana_spl.c b/board/gateworks/gw_ventana/gw_ventana_spl.c
index e943879..9fc253b 100644
--- a/board/gateworks/gw_ventana/gw_ventana_spl.c
+++ b/board/gateworks/gw_ventana/gw_ventana_spl.c
@@ -201,55 +201,79 @@ static struct mx6_ddr3_cfg mt41k128m16jt_125 = {
 	.trasmin = 3500,
 };
 
-/* GW54xx specific calibration */
-static struct mx6_mmdc_calibration gw54xxq_mmdc_calib = {
+/* MT41K256M16HA-125 */
+static struct mx6_ddr3_cfg mt41k256m16ha_125 = {
+	.mem_speed = 1600,
+	.density = 4,
+	.width = 16,
+	.banks = 8,
+	.rowaddr = 15,
+	.coladdr = 10,
+	.pagesz = 2,
+	.trcd = 1375,
+	.trcmin = 4875,
+	.trasmin = 3500,
+};
+
+/*
+ * calibration - these are the various CPU/DDR3 combinations we support
+ */
+
+static struct mx6_mmdc_calibration mx6dq_128x32_mmdc_calib = {
 	/* write leveling calibration determine */
-	.p0_mpwldectrl0 = 0x00190018,
-	.p0_mpwldectrl1 = 0x0021001D,
-	.p1_mpwldectrl0 = 0x00160027,
-	.p1_mpwldectrl1 = 0x0012001E,
+	.p0_mpwldectrl0 = 0x00190017,
+	.p0_mpwldectrl1 = 0x00140026,
 	/* Read DQS Gating calibration */
-	.p0_mpdgctrl0 = 0x43370346,
-	.p0_mpdgctrl1 = 0x032A0321,
-	.p1_mpdgctrl0 = 0x433A034D,
-	.p1_mpdgctrl1 = 0x032F0235,
+	.p0_mpdgctrl0 = 0x43380347,
+	.p0_mpdgctrl1 = 0x433C034D,
 	/* Read Calibration: DQS delay relative to DQ read access */
 	.p0_mprddlctl = 0x3C313539,
-	.p1_mprddlctl = 0x37333140,
 	/* Write Calibration: DQ/DM delay relative to DQS write access */
-	.p0_mpwrdlctl = 0x37393C38,
-	.p1_mpwrdlctl = 0x42334538,
+	.p0_mpwrdlctl = 0x36393C39,
+};
+
+static struct mx6_mmdc_calibration mx6sdl_128x32_mmdc_calib = {
+	/* write leveling calibration determine */
+	.p0_mpwldectrl0 = 0x003C003C,
+	.p0_mpwldectrl1 = 0x001F002A,
+	/* Read DQS Gating calibration */
+	.p0_mpdgctrl0 = 0x42410244,
+	.p0_mpdgctrl1 = 0x4234023A,
+	/* Read Calibration: DQS delay relative to DQ read access */
+	.p0_mprddlctl = 0x484A4C4B,
+	/* Write Calibration: DQ/DM delay relative to DQS write access */
+	.p0_mpwrdlctl = 0x33342B32,
 };
 
-/* GW53xx specific calibration */
-static struct mx6_mmdc_calibration gw53xxq_mmdc_calib = {
+static struct mx6_mmdc_calibration mx6dq_128x64_mmdc_calib = {
 	/* write leveling calibration determine */
-	.p0_mpwldectrl0 = 0x00160013,
-	.p0_mpwldectrl1 = 0x00090024,
-	.p1_mpwldectrl0 = 0x001F0018,
-	.p1_mpwldectrl1 = 0x000C001C,
+	.p0_mpwldectrl0 = 0x00190017,
+	.p0_mpwldectrl1 = 0x00140026,
+	.p1_mpwldectrl0 = 0x0021001C,
+	.p1_mpwldectrl1 = 0x0011001D,
 	/* Read DQS Gating calibration */
-	.p0_mpdgctrl0 = 0x433A034C,
-	.p0_mpdgctrl1 = 0x0336032F,
-	.p1_mpdgctrl0 = 0x4343034A,
-	.p1_mpdgctrl1 = 0x03370222,
+	.p0_mpdgctrl0 = 0x43380347,
+	.p0_mpdgctrl1 = 0x433C034D,
+	.p1_mpdgctrl0 = 0x032C0324,
+	.p1_mpdgctrl1 = 0x03310232,
 	/* Read Calibration: DQS delay relative to DQ read access */
-	.p0_mprddlctl = 0x3F343638,
-	.p1_mprddlctl = 0x38373442,
+	.p0_mprddlctl = 0x3C313539,
+	.p1_mprddlctl = 0x37343141,
 	/* Write Calibration: DQ/DM delay relative to DQS write access */
-	.p0_mpwrdlctl = 0x343A3E39,
-	.p1_mpwrdlctl = 0x44344239,
+	.p0_mpwrdlctl = 0x36393C39,
+	.p1_mpwrdlctl = 0x42344438,
 };
-static struct mx6_mmdc_calibration gw53xxdl_mmdc_calib = {
+
+static struct mx6_mmdc_calibration mx6sdl_128x64_mmdc_calib = {
 	/* write leveling calibration determine */
 	.p0_mpwldectrl0 = 0x003C003C,
-	.p0_mpwldectrl1 = 0x00330038,
-	.p1_mpwldectrl0 = 0x001F002A,
+	.p0_mpwldectrl1 = 0x001F002A,
+	.p1_mpwldectrl0 = 0x00330038,
 	.p1_mpwldectrl1 = 0x0022003F,
 	/* Read DQS Gating calibration */
 	.p0_mpdgctrl0 = 0x42410244,
-	.p0_mpdgctrl1 = 0x022D022D,
-	.p1_mpdgctrl0 = 0x4234023A,
+	.p0_mpdgctrl1 = 0x4234023A,
+	.p1_mpdgctrl0 = 0x022D022D,
 	.p1_mpdgctrl1 = 0x021C0228,
 	/* Read Calibration: DQS delay relative to DQ read access */
 	.p0_mprddlctl = 0x484A4C4B,
@@ -259,51 +283,42 @@ static struct mx6_mmdc_calibration gw53xxdl_mmdc_calib = {
 	.p1_mpwrdlctl = 0x3933332B,
 };
 
-/* GW52xx specific calibration */
-static struct mx6_mmdc_calibration gw52xxdl_mmdc_calib = {
-	/* write leveling calibration determine */
-	.p0_mpwldectrl0 = 0x0040003F,
-	.p0_mpwldectrl1 = 0x00370037,
-	/* Read DQS Gating calibration */
-	.p0_mpdgctrl0 = 0x42420244,
-	.p0_mpdgctrl1 = 0x022F022F,
-	/* Read Calibration: DQS delay relative to DQ read access */
-	.p0_mprddlctl = 0x49464B4A,
-	/* Write Calibration: DQ/DM delay relative to DQS write access */
-	.p0_mpwrdlctl = 0x32362C32,
-};
-
-/* GW51xx specific calibration */
-static struct mx6_mmdc_calibration gw51xxq_mmdc_calib = {
+static struct mx6_mmdc_calibration mx6dq_256x32_mmdc_calib = {
 	/* write leveling calibration determine */
-	.p0_mpwldectrl0 = 0x00150016,
-	.p0_mpwldectrl1 = 0x001F0017,
+	.p0_mpwldectrl0 = 0x001E001A,
+	.p0_mpwldectrl1 = 0x0026001F,
 	/* Read DQS Gating calibration */
-	.p0_mpdgctrl0 = 0x433D034D,
-	.p0_mpdgctrl1 = 0x033D032F,
+	.p0_mpdgctrl0 = 0x43370349,
+	.p0_mpdgctrl1 = 0x032D0327,
 	/* Read Calibration: DQS delay relative to DQ read access */
-	.p0_mprddlctl = 0x3F313639,
+	.p0_mprddlctl = 0x3D303639,
 	/* Write Calibration: DQ/DM delay relative to DQS write access */
-	.p0_mpwrdlctl = 0x33393F36,
+	.p0_mpwrdlctl = 0x32363934,
 };
 
-static struct mx6_mmdc_calibration gw51xxdl_mmdc_calib = {
+static struct mx6_mmdc_calibration mx6dq_256x64_mmdc_calib = {
 	/* write leveling calibration determine */
-	.p0_mpwldectrl0 = 0x003D003F,
-	.p0_mpwldectrl1 = 0x002F0038,
+	.p0_mpwldectrl0 = 0X00220021,
+	.p0_mpwldectrl1 = 0X00200030,
+	.p1_mpwldectrl0 = 0X002D0027,
+	.p1_mpwldectrl1 = 0X00150026,
 	/* Read DQS Gating calibration */
-	.p0_mpdgctrl0 = 0x423A023A,
-	.p0_mpdgctrl1 = 0x022A0228,
+	.p0_mpdgctrl0 = 0x43330342,
+	.p0_mpdgctrl1 = 0x0339034A,
+	.p1_mpdgctrl0 = 0x032F0325,
+	.p1_mpdgctrl1 = 0x032F022E,
 	/* Read Calibration: DQS delay relative to DQ read access */
-	.p0_mprddlctl = 0x48494C4C,
+	.p0_mprddlctl = 0X3A2E3437,
+	.p1_mprddlctl = 0X35312F3F,
 	/* Write Calibration: DQ/DM delay relative to DQS write access */
-	.p0_mpwrdlctl = 0x34352D31,
+	.p0_mpwrdlctl = 0X33363B37,
+	.p1_mpwrdlctl = 0X40304239,
 };
 
-static void spl_dram_init(int width, int size, int board_model)
+static void spl_dram_init(int width, int size_mb, int board_model)
 {
-	struct mx6_ddr3_cfg *mem = &mt41k128m16jt_125;
-	struct mx6_mmdc_calibration *calib;
+	struct mx6_ddr3_cfg *mem = NULL;
+	struct mx6_mmdc_calibration *calib = NULL;
 	struct mx6_ddr_sysinfo sysinfo = {
 		/* width of data bus:0=16,1=32,2=64 */
 		.dsize = width/32,
@@ -329,29 +344,43 @@ static void spl_dram_init(int width, int size, int board_model)
 	/*
 	 * MMDC Calibration requires the following data:
 	 *   mx6_mmdc_calibration - board-specific calibration (routing delays)
+	 *      these calibration values depend on board routing, SoC, and DDR
 	 *   mx6_ddr_sysinfo - board-specific memory architecture (width/cs/etc)
 	 *   mx6_ddr_cfg - chip specific timing/layout details
 	 */
-	switch (board_model) {
-	default:
-	case GW51xx:
+	if (width == 32 && size_mb == 512) {
+		mem = &mt41k128m16jt_125;
 		if (is_cpu_type(MXC_CPU_MX6Q))
-			calib = &gw51xxq_mmdc_calib;
+			calib = &mx6dq_128x32_mmdc_calib;
 		else
-			calib = &gw51xxdl_mmdc_calib;
-		break;
-	case GW52xx:
-		calib = &gw52xxdl_mmdc_calib;
-		break;
-	case GW53xx:
+			calib = &mx6sdl_128x32_mmdc_calib;
+		debug("2gB density\n");
+	} else if (width == 64 && size_mb == 1024) {
+		mem = &mt41k128m16jt_125;
 		if (is_cpu_type(MXC_CPU_MX6Q))
-			calib = &gw53xxq_mmdc_calib;
+			calib = &mx6dq_128x64_mmdc_calib;
 		else
-			calib = &gw53xxdl_mmdc_calib;
-		break;
-	case GW54xx:
-		calib = &gw54xxq_mmdc_calib;
-		break;
+			calib = &mx6sdl_128x64_mmdc_calib;
+		debug("2gB density\n");
+	} else if (width == 32 && size_mb == 1024) {
+		mem = &mt41k256m16ha_125;
+		if (is_cpu_type(MXC_CPU_MX6Q))
+			calib = &mx6dq_256x32_mmdc_calib;
+		debug("4gB density\n");
+	} else if (width == 64 && size_mb == 2048) {
+		mem = &mt41k256m16ha_125;
+		if (is_cpu_type(MXC_CPU_MX6Q))
+			calib = &mx6dq_256x64_mmdc_calib;
+		debug("4gB density\n");
+	}
+
+	if (!mem) {
+		puts("Error: Invalid Memory Configuration\n");
+		hang();
+	}
+	if (!calib) {
+		puts("Error: Invalid Board Calibration Configuration\n");
+		hang();
 	}
 
 	if (is_cpu_type(MXC_CPU_MX6Q))
diff --git a/board/gateworks/gw_ventana/ventana_eeprom.h b/board/gateworks/gw_ventana/ventana_eeprom.h
index d64b910..af12711 100644
--- a/board/gateworks/gw_ventana/ventana_eeprom.h
+++ b/board/gateworks/gw_ventana/ventana_eeprom.h
@@ -109,6 +109,7 @@ enum {
 	GW52xx,
 	GW53xx,
 	GW54xx,
+	GW552x,
 	GW_UNKNOWN,
 	GW_BADCRC,
 };