mx6: Add Phytec PCM058 i.MX6 Quad

Add Phytec-i.MX6 SOM with NAND

  Support:
   - 1GB RAM
   - Ethernet
   - SPI-NOR Flash
   - NAND (1024 MB)
   - external SD
   - UART

Signed-off-by: Stefano Babic <sbabic@denx.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>

5 files changed, 644 insertions, 0 deletions

diff --git a/board/phytec/pcm058/Kconfig b/board/phytec/pcm058/Kconfig
new file mode 100644
index 0000000000..d099275d48
--- /dev/null
+++ b/board/phytec/pcm058/Kconfig
@@ -0,0 +1,12 @@
+if TARGET_PCM058
+
+config SYS_BOARD
+	default "pcm058"
+
+config SYS_VENDOR
+	default "phytec"
+
+config SYS_CONFIG_NAME
+	default "pcm058"
+
+endif
diff --git a/board/phytec/pcm058/MAINTAINERS b/board/phytec/pcm058/MAINTAINERS
new file mode 100644
index 0000000000..b0ca40277f
--- /dev/null
+++ b/board/phytec/pcm058/MAINTAINERS
@@ -0,0 +1,6 @@
+PHYTEC PHYBOARD MIRA
+M:	Stefano Babic <sbabic@denx.de>
+S:	Maintained
+F:	board/phytec/pcm058/
+F:	include/configs/pcm058.h
+F:	configs/pcm058_defconfig
diff --git a/board/phytec/pcm058/Makefile b/board/phytec/pcm058/Makefile
new file mode 100644
index 0000000000..97733b110c
--- /dev/null
+++ b/board/phytec/pcm058/Makefile
@@ -0,0 +1,9 @@
+#
+# Copyright (C) 2007, Guennadi Liakhovetski <lg@denx.de>
+#
+# (C) Copyright 2011 Freescale Semiconductor, Inc.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y  := pcm058.o
diff --git a/board/phytec/pcm058/README b/board/phytec/pcm058/README
new file mode 100644
index 0000000000..3327135645
--- /dev/null
+++ b/board/phytec/pcm058/README
@@ -0,0 +1,35 @@
+Board information
+-----------------
+
+The SBC produced by Phytec has a SOM based on a i.MX6Q.
+The SOM is sold in two versions, with eMMC or with NAND. Support
+here is for the SOM with NAND.
+The evaluation board "phyBoard-Mira" is thought to be used
+together with the SOM.
+
+More information on the board can be found on manufacturer's
+website:
+
+http://www.phytec.de/produkt/single-board-computer/phyboard-mira/
+http://www.phytec.de/fileadmin/user_upload/images/content/1.Products/SOMs/phyCORE-i.MX6/L-808e_1.pdf
+
+Building U-Boot
+-------------------------------
+
+$ make pcm058_defconfig
+$ make
+
+This generates the artifacts SPL and u-boot.img.
+The SOM can boot from NAND or from SD-Card, having the SPI-NOR
+as second option.
+The dip switch "DIP-1" on the board let choose between
+NAND and SD.
+
+DIP-1 set to off:	Boot first from NAND, then try SPI
+DIP-1 set to on:	Boot first from SD, then try SPI
+
+The bootloader was tested with DIP-1 set to on. If a SD-card
+is present, then the RBL tries to load SPL from the SD Card, if not,
+RBL loads from SPI-NOR. The SPL tries then to load from the same
+device where SPL was loaded (SD or SPI). Booting from NAND is
+not supported.
diff --git a/board/phytec/pcm058/pcm058.c b/board/phytec/pcm058/pcm058.c
new file mode 100644
index 0000000000..0ba4a2e268
--- /dev/null
+++ b/board/phytec/pcm058/pcm058.c
@@ -0,0 +1,582 @@
+/*
+ * Copyright (C) 2016 Stefano Babic <sbabic@denx.de>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+/*
+ * Please note: there are two version of the board
+ * one with NAND and the other with eMMC.
+ * Both NAND and eMMC cannot be set because they share the
+ * same pins (SD4)
+ */
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/crm_regs.h>
+#include <asm/arch/mx6-ddr.h>
+#include <asm/arch/iomux.h>
+#include <asm/arch/mx6-pins.h>
+#include <asm/imx-common/iomux-v3.h>
+#include <asm/imx-common/boot_mode.h>
+#include <asm/imx-common/mxc_i2c.h>
+#include <asm/imx-common/spi.h>
+#include <asm/errno.h>
+#include <asm/gpio.h>
+#include <mmc.h>
+#include <i2c.h>
+#include <fsl_esdhc.h>
+#include <nand.h>
+#include <miiphy.h>
+#include <netdev.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/sections.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#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 USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP |			\
+	PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm |			\
+	PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
+
+#define ENET_PAD_CTRL  (PAD_CTL_PUS_100K_UP |			\
+	PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
+
+#define SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \
+		      PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
+
+#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)
+
+#define I2C_PAD MUX_PAD_CTRL(I2C_PAD_CTRL)
+
+#define ASRC_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP  |	\
+		      PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
+
+#define NAND_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
+	       PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
+
+#define ENET_PHY_RESET_GPIO IMX_GPIO_NR(1, 14)
+#define USDHC1_CD_GPIO	IMX_GPIO_NR(6, 31)
+#define USER_LED	IMX_GPIO_NR(1, 4)
+#define IMX6Q_DRIVE_STRENGTH	0x30
+
+int dram_init(void)
+{
+	gd->ram_size = imx_ddr_size();
+	return 0;
+}
+
+void board_turn_off_led(void)
+{
+	gpio_direction_output(USER_LED, 0);
+}
+
+static iomux_v3_cfg_t const uart1_pads[] = {
+	MX6_PAD_EIM_D26__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
+	MX6_PAD_EIM_D27__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
+};
+
+static iomux_v3_cfg_t const enet_pads[] = {
+	MX6_PAD_ENET_MDIO__ENET_MDIO		| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_ENET_MDC__ENET_MDC		| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_TXC__RGMII_TXC	| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_TD0__RGMII_TD0	| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_TD1__RGMII_TD1	| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_TD2__RGMII_TD2	| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_TD3__RGMII_TD3	| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL	| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_ENET_REF_CLK__ENET_TX_CLK	| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_RXC__RGMII_RXC	| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_RD0__RGMII_RD0	| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_RD1__RGMII_RD1	| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_RD2__RGMII_RD2	| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_RD3__RGMII_RD3	| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL	| MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_SD2_DAT1__GPIO1_IO14	| MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+static iomux_v3_cfg_t const ecspi1_pads[] = {
+	MX6_PAD_EIM_D16__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
+	MX6_PAD_EIM_D17__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
+	MX6_PAD_EIM_D18__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
+	MX6_PAD_EIM_D19__GPIO3_IO19 | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+/* NAND */
+static iomux_v3_cfg_t const nfc_pads[] = {
+	MX6_PAD_NANDF_CLE__NAND_CLE     | MUX_PAD_CTRL(NAND_PAD_CTRL),
+	MX6_PAD_NANDF_ALE__NAND_ALE     | MUX_PAD_CTRL(NAND_PAD_CTRL),
+	MX6_PAD_NANDF_WP_B__NAND_WP_B   | MUX_PAD_CTRL(NAND_PAD_CTRL),
+	MX6_PAD_NANDF_RB0__NAND_READY_B | MUX_PAD_CTRL(NAND_PAD_CTRL),
+	MX6_PAD_NANDF_CS0__NAND_CE0_B   | MUX_PAD_CTRL(NAND_PAD_CTRL),
+	MX6_PAD_NANDF_CS1__NAND_CE1_B	| MUX_PAD_CTRL(NAND_PAD_CTRL),
+	MX6_PAD_NANDF_CS2__NAND_CE2_B	| MUX_PAD_CTRL(NAND_PAD_CTRL),
+	MX6_PAD_NANDF_CS3__NAND_CE3_B	| MUX_PAD_CTRL(NAND_PAD_CTRL),
+	MX6_PAD_SD4_CMD__NAND_RE_B      | MUX_PAD_CTRL(NAND_PAD_CTRL),
+	MX6_PAD_SD4_CLK__NAND_WE_B      | MUX_PAD_CTRL(NAND_PAD_CTRL),
+	MX6_PAD_NANDF_D0__NAND_DATA00   | MUX_PAD_CTRL(NAND_PAD_CTRL),
+	MX6_PAD_NANDF_D1__NAND_DATA01   | MUX_PAD_CTRL(NAND_PAD_CTRL),
+	MX6_PAD_NANDF_D2__NAND_DATA02   | MUX_PAD_CTRL(NAND_PAD_CTRL),
+	MX6_PAD_NANDF_D3__NAND_DATA03   | MUX_PAD_CTRL(NAND_PAD_CTRL),
+	MX6_PAD_NANDF_D4__NAND_DATA04   | MUX_PAD_CTRL(NAND_PAD_CTRL),
+	MX6_PAD_NANDF_D5__NAND_DATA05   | MUX_PAD_CTRL(NAND_PAD_CTRL),
+	MX6_PAD_NANDF_D6__NAND_DATA06   | MUX_PAD_CTRL(NAND_PAD_CTRL),
+	MX6_PAD_NANDF_D7__NAND_DATA07   | MUX_PAD_CTRL(NAND_PAD_CTRL),
+	MX6_PAD_SD4_DAT0__NAND_DQS	| MUX_PAD_CTRL(NAND_PAD_CTRL),
+};
+
+
+/* GPIOS */
+static iomux_v3_cfg_t const gpios_pads[] = {
+};
+
+static struct i2c_pads_info i2c_pad_info2 = {
+	.scl = {
+		.i2c_mode = MX6_PAD_GPIO_5__I2C3_SCL | I2C_PAD,
+		.gpio_mode = MX6_PAD_GPIO_5__GPIO1_IO05 | I2C_PAD,
+		.gp = IMX_GPIO_NR(1, 5)
+	},
+	.sda = {
+		.i2c_mode = MX6_PAD_GPIO_6__I2C3_SDA | I2C_PAD,
+		.gpio_mode = MX6_PAD_GPIO_6__GPIO1_IO06 | I2C_PAD,
+		.gp = IMX_GPIO_NR(1, 6)
+	}
+};
+
+static struct fsl_esdhc_cfg usdhc_cfg[] = {
+	{.esdhc_base = USDHC1_BASE_ADDR,
+	.max_bus_width = 4},
+#ifndef CONFIG_CMD_NAND
+	{USDHC4_BASE_ADDR},
+#endif
+};
+
+static iomux_v3_cfg_t const usdhc1_pads[] = {
+	MX6_PAD_SD1_CLK__SD1_CLK	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD1_CMD__SD1_CMD	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD1_DAT0__SD1_DATA0	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD1_DAT1__SD1_DATA1	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD1_DAT2__SD1_DATA2	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD1_DAT3__SD1_DATA3	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_EIM_BCLK__GPIO6_IO31	| MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
+};
+
+#ifndef CONFIG_CMD_NAND
+static iomux_v3_cfg_t const usdhc4_pads[] = {
+	MX6_PAD_SD4_CLK__SD4_CLK	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD4_CMD__SD4_CMD	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD4_DAT0__SD4_DATA0	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD4_DAT1__SD4_DATA1	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD4_DAT2__SD4_DATA2	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD4_DAT3__SD4_DATA3	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD4_DAT4__SD4_DATA4	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD4_DAT5__SD4_DATA5	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD4_DAT6__SD4_DATA6	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD4_DAT7__SD4_DATA7	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
+};
+#endif
+
+int board_mmc_get_env_dev(int devno)
+{
+	return devno - 1;
+}
+
+int board_mmc_getcd(struct mmc *mmc)
+{
+	struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
+	int ret = 0;
+
+	switch (cfg->esdhc_base) {
+	case USDHC1_BASE_ADDR:
+		ret = !gpio_get_value(USDHC1_CD_GPIO);
+		break;
+	case USDHC4_BASE_ADDR:
+		ret = 1; /* eMMC/uSDHC4 is always present */
+		break;
+	}
+
+	return ret;
+}
+
+int board_mmc_init(bd_t *bis)
+{
+#ifndef CONFIG_SPL_BUILD
+	int ret;
+	int i;
+
+	for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
+		switch (i) {
+		case 0:
+			imx_iomux_v3_setup_multiple_pads(
+				usdhc1_pads, ARRAY_SIZE(usdhc1_pads));
+			gpio_direction_input(USDHC1_CD_GPIO);
+			usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
+			break;
+#ifndef CONFIG_CMD_NAND
+		case 1:
+			imx_iomux_v3_setup_multiple_pads(
+				usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
+			usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
+			break;
+#endif
+		default:
+			printf("Warning: you configured more USDHC controllers"
+			       "(%d) then supported by the board (%d)\n",
+			       i + 1, CONFIG_SYS_FSL_USDHC_NUM);
+			return -EINVAL;
+		}
+
+		ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+#else
+	struct src *psrc = (struct src *)SRC_BASE_ADDR;
+	unsigned reg = readl(&psrc->sbmr1) >> 11;
+	/*
+	 * Upon reading BOOT_CFG register the following map is done:
+	 * Bit 11 and 12 of BOOT_CFG register can determine the current
+	 * mmc port
+	 * 0x1                  SD1
+	 * 0x2                  SD2
+	 * 0x3                  SD4
+	 */
+
+	switch (reg & 0x3) {
+	case 0x0:
+		imx_iomux_v3_setup_multiple_pads(
+			usdhc1_pads, ARRAY_SIZE(usdhc1_pads));
+		gpio_direction_input(USDHC1_CD_GPIO);
+		usdhc_cfg[0].esdhc_base = USDHC1_BASE_ADDR;
+		usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
+		usdhc_cfg[0].max_bus_width = 4;
+		gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
+		break;
+	}
+	return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
+#endif
+}
+
+static void setup_iomux_uart(void)
+{
+	imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
+}
+
+static void setup_iomux_enet(void)
+{
+	imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
+
+	gpio_direction_output(ENET_PHY_RESET_GPIO, 0);
+	mdelay(10);
+	gpio_set_value(ENET_PHY_RESET_GPIO, 1);
+	mdelay(30);
+}
+
+static void setup_spi(void)
+{
+	gpio_request(IMX_GPIO_NR(3, 19), "spi_cs0");
+	gpio_direction_output(IMX_GPIO_NR(3, 19), 1);
+
+	imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads));
+
+	enable_spi_clk(true, 0);
+}
+
+#ifdef CONFIG_CMD_NAND
+static void setup_gpmi_nand(void)
+{
+	struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
+
+	/* config gpmi nand iomux */
+	imx_iomux_v3_setup_multiple_pads(nfc_pads, ARRAY_SIZE(nfc_pads));
+
+	/* gate ENFC_CLK_ROOT clock first,before clk source switch */
+	clrbits_le32(&mxc_ccm->CCGR2, MXC_CCM_CCGR2_IOMUX_IPT_CLK_IO_MASK);
+
+	/* config gpmi and bch clock to 100 MHz */
+	clrsetbits_le32(&mxc_ccm->cs2cdr,
+			MXC_CCM_CS2CDR_ENFC_CLK_PODF_MASK |
+			MXC_CCM_CS2CDR_ENFC_CLK_PRED_MASK |
+			MXC_CCM_CS2CDR_ENFC_CLK_SEL_MASK,
+			MXC_CCM_CS2CDR_ENFC_CLK_PODF(0) |
+			MXC_CCM_CS2CDR_ENFC_CLK_PRED(3) |
+			MXC_CCM_CS2CDR_ENFC_CLK_SEL(3));
+
+	/* enable ENFC_CLK_ROOT clock */
+	setbits_le32(&mxc_ccm->CCGR2, MXC_CCM_CCGR2_IOMUX_IPT_CLK_IO_MASK);
+
+	/* enable gpmi and bch clock gating */
+	setbits_le32(&mxc_ccm->CCGR4,
+		     MXC_CCM_CCGR4_RAWNAND_U_BCH_INPUT_APB_MASK |
+		     MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_BCH_MASK |
+		     MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_GPMI_IO_MASK |
+		     MXC_CCM_CCGR4_RAWNAND_U_GPMI_INPUT_APB_MASK |
+		     MXC_CCM_CCGR4_PL301_MX6QPER1_BCH_OFFSET);
+
+	/* enable apbh clock gating */
+	setbits_le32(&mxc_ccm->CCGR0, MXC_CCM_CCGR0_APBHDMA_MASK);
+}
+#endif
+
+int board_spi_cs_gpio(unsigned bus, unsigned cs)
+{
+	if (bus != 0 || (cs != 0))
+		return -EINVAL;
+
+	return IMX_GPIO_NR(3, 19);
+}
+
+int board_eth_init(bd_t *bis)
+{
+	setup_iomux_enet();
+
+	return cpu_eth_init(bis);
+}
+
+int board_early_init_f(void)
+{
+	setup_iomux_uart();
+
+	return 0;
+}
+
+int board_init(void)
+{
+	/* address of boot parameters */
+	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
+
+#ifdef CONFIG_SYS_I2C_MXC
+	setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
+#endif
+
+#ifdef CONFIG_MXC_SPI
+	setup_spi();
+#endif
+
+#ifdef CONFIG_CMD_NAND
+	setup_gpmi_nand();
+#endif
+	return 0;
+}
+
+
+#ifdef CONFIG_CMD_BMODE
+/*
+ * BOOT_CFG1, BOOT_CFG2, BOOT_CFG3, BOOT_CFG4
+ * see Table 8-11 and Table 5-9
+ *  BOOT_CFG1[7] = 1 (boot from NAND)
+ *  BOOT_CFG1[5] = 0 - raw NAND
+ *  BOOT_CFG1[4] = 0 - default pad settings
+ *  BOOT_CFG1[3:2] = 00 - devices = 1
+ *  BOOT_CFG1[1:0] = 00 - Row Address Cycles = 3
+ *  BOOT_CFG2[4:3] = 00 - Boot Search Count = 2
+ *  BOOT_CFG2[2:1] = 01 - Pages In Block = 64
+ *  BOOT_CFG2[0] = 0 - Reset time 12ms
+ */
+static const struct boot_mode board_boot_modes[] = {
+	/* NAND: 64pages per block, 3 row addr cycles, 2 copies of FCB/DBBT */
+	{"nand", MAKE_CFGVAL(0x80, 0x02, 0x00, 0x00)},
+	{"mmc0",  MAKE_CFGVAL(0x40, 0x20, 0x00, 0x00)},
+	{NULL, 0},
+};
+#endif
+
+int board_late_init(void)
+{
+#ifdef CONFIG_CMD_BMODE
+	add_board_boot_modes(board_boot_modes);
+#endif
+
+	return 0;
+}
+
+#ifdef CONFIG_SPL_BUILD
+#include <spl.h>
+#include <libfdt.h>
+
+static const struct mx6dq_iomux_ddr_regs mx6_ddr_ioregs = {
+	.dram_sdclk_0 = 0x00000030,
+	.dram_sdclk_1 = 0x00000030,
+	.dram_cas = 0x00000030,
+	.dram_ras = 0x00000030,
+	.dram_reset = 0x00000030,
+	.dram_sdcke0 = 0x00000030,
+	.dram_sdcke1 = 0x00000030,
+	.dram_sdba2 = 0x00000000,
+	.dram_sdodt0 = 0x00000030,
+	.dram_sdodt1 = 0x00000030,
+	.dram_sdqs0 = 0x00000030,
+	.dram_sdqs1 = 0x00000030,
+	.dram_sdqs2 = 0x00000030,
+	.dram_sdqs3 = 0x00000030,
+	.dram_sdqs4 = 0x00000030,
+	.dram_sdqs5 = 0x00000030,
+	.dram_sdqs6 = 0x00000030,
+	.dram_sdqs7 = 0x00000030,
+	.dram_dqm0 = 0x00000030,
+	.dram_dqm1 = 0x00000030,
+	.dram_dqm2 = 0x00000030,
+	.dram_dqm3 = 0x00000030,
+	.dram_dqm4 = 0x00000030,
+	.dram_dqm5 = 0x00000030,
+	.dram_dqm6 = 0x00000030,
+	.dram_dqm7 = 0x00000030,
+};
+
+static const struct mx6dq_iomux_grp_regs mx6_grp_ioregs = {
+	.grp_ddr_type =  0x000C0000,
+	.grp_ddrmode_ctl =  0x00020000,
+	.grp_ddrpke =  0x00000000,
+	.grp_addds = IMX6Q_DRIVE_STRENGTH,
+	.grp_ctlds = IMX6Q_DRIVE_STRENGTH,
+	.grp_ddrmode =  0x00020000,
+	.grp_b0ds = IMX6Q_DRIVE_STRENGTH,
+	.grp_b1ds = IMX6Q_DRIVE_STRENGTH,
+	.grp_b2ds = IMX6Q_DRIVE_STRENGTH,
+	.grp_b3ds = IMX6Q_DRIVE_STRENGTH,
+	.grp_b4ds = IMX6Q_DRIVE_STRENGTH,
+	.grp_b5ds = IMX6Q_DRIVE_STRENGTH,
+	.grp_b6ds = IMX6Q_DRIVE_STRENGTH,
+	.grp_b7ds = IMX6Q_DRIVE_STRENGTH,
+};
+
+static const struct mx6_mmdc_calibration mx6_mmcd_calib = {
+	.p0_mpwldectrl0 =  0x00140014,
+	.p0_mpwldectrl1 =  0x000A0015,
+	.p1_mpwldectrl0 =  0x000A001E,
+	.p1_mpwldectrl1 =  0x000A0015,
+	.p0_mpdgctrl0 =  0x43080314,
+	.p0_mpdgctrl1 =  0x02680300,
+	.p1_mpdgctrl0 =  0x430C0318,
+	.p1_mpdgctrl1 =  0x03000254,
+	.p0_mprddlctl =  0x3A323234,
+	.p1_mprddlctl =  0x3E3C3242,
+	.p0_mpwrdlctl =  0x2A2E3632,
+	.p1_mpwrdlctl =  0x3C323E34,
+};
+
+static struct mx6_ddr3_cfg mem_ddr = {
+	.mem_speed = 1600,
+	.density = 2,
+	.width = 16,
+	.banks = 8,
+	.rowaddr = 14,
+	.coladdr = 10,
+	.pagesz = 2,
+	.trcd = 1375,
+	.trcmin = 4875,
+	.trasmin = 3500,
+	.SRT       = 1,
+};
+
+static void ccgr_init(void)
+{
+	struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
+
+	writel(0x00C03F3F, &ccm->CCGR0);
+	writel(0x0030FC03, &ccm->CCGR1);
+	writel(0x0FFFC000, &ccm->CCGR2);
+	writel(0x3FF00000, &ccm->CCGR3);
+	writel(0x00FFF300, &ccm->CCGR4);
+	writel(0x0F0000C3, &ccm->CCGR5);
+	writel(0x000003FF, &ccm->CCGR6);
+}
+
+static void gpr_init(void)
+{
+	struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
+
+	/* enable AXI cache for VDOA/VPU/IPU */
+	writel(0xF00000CF, &iomux->gpr[4]);
+	/* set IPU AXI-id0 Qos=0xf(bypass) AXI-id1 Qos=0x7 */
+	writel(0x007F007F, &iomux->gpr[6]);
+	writel(0x007F007F, &iomux->gpr[7]);
+}
+
+
+static void spl_dram_init(void)
+{
+	struct mx6_ddr_sysinfo sysinfo = {
+		/* width of data bus:0=16,1=32,2=64 */
+		.dsize = 2,
+		/* config for full 4GB range so that get_mem_size() works */
+		.cs_density = 32, /* 32Gb per CS */
+		/* single chip select */
+		.ncs = 1,
+		.cs1_mirror = 0,
+		.rtt_wr = 1 /*DDR3_RTT_60_OHM*/,	/* RTT_Wr = RZQ/4 */
+		.rtt_nom = 1 /*DDR3_RTT_60_OHM*/,	/* RTT_Nom = RZQ/4 */
+		.walat = 1,	/* Write additional latency */
+		.ralat = 5,	/* Read additional latency */
+		.mif3_mode = 3,	/* Command prediction working mode */
+		.bi_on = 1,	/* Bank interleaving enabled */
+		.sde_to_rst = 0x10,	/* 14 cycles, 200us (JEDEC default) */
+		.rst_to_cke = 0x23,	/* 33 cycles, 500us (JEDEC default) */
+		.ddr_type = DDR_TYPE_DDR3,
+	};
+
+	mx6dq_dram_iocfg(64, &mx6_ddr_ioregs, &mx6_grp_ioregs);
+	mx6_dram_cfg(&sysinfo, &mx6_mmcd_calib, &mem_ddr);
+}
+
+void board_boot_order(u32 *spl_boot_list)
+{
+	spl_boot_list[0] = spl_boot_device();
+	printf("Boot device %x\n", spl_boot_list[0]);
+	switch (spl_boot_list[0]) {
+	case BOOT_DEVICE_SPI:
+		spl_boot_list[1] = BOOT_DEVICE_UART;
+		break;
+	case BOOT_DEVICE_MMC1:
+		spl_boot_list[1] = BOOT_DEVICE_SPI;
+		spl_boot_list[2] = BOOT_DEVICE_UART;
+		break;
+	default:
+		printf("Boot device %x\n", spl_boot_list[0]);
+	}
+}
+
+void board_init_f(ulong dummy)
+{
+#ifdef CONFIG_CMD_NAND
+	/* Enable NAND */
+	setup_gpmi_nand();
+#endif
+
+	/* setup clock gating */
+	ccgr_init();
+
+	/* setup AIPS and disable watchdog */
+	arch_cpu_init();
+
+	/* setup AXI */
+	gpr_init();
+
+	board_early_init_f();
+
+	/* setup GP timer */
+	timer_init();
+
+	setup_spi();
+
+	/* UART clocks enabled and gd valid - init serial console */
+	preloader_console_init();
+
+	/* DDR initialization */
+	spl_dram_init();
+
+	/* Clear the BSS. */
+	memset(__bss_start, 0, __bss_end - __bss_start);
+
+	/* load/boot image from boot device */
+	board_init_r(NULL, 0);
+}
+#endif