[U-Boot] [PATCH v2 5/7] arm: imx6q: Add Engicam i.CoreM6 Quad/Dual RQS Starter Kit initial support

[Jagan Teki <jagan@openedev.com>]

From: Jagan Teki <jagan@amarulasolutions.com>

Boot from MMC:
-------------
U-Boot SPL 2016.11-rc2-g217bd8e-dirty (Nov 08 2016 - 22:59:44)
Trying to boot from MMC1

U-Boot 2016.11-rc2-g217bd8e-dirty (Nov 08 2016 - 22:59:44 +0530)

CPU:   Freescale i.MX6D rev1.2 at 792 MHz
Reset cause: POR
Model: Engicam i.CoreM6 Quad/Dual RQS Starter Kit
DRAM:  512 MiB
MMC:   FSL_SDHC: 0
*** Warning - bad CRC, using default environment

In:    serial
Out:   serial
Err:   serial
Net:   CPU Net Initialization Failed
No ethernet found.
Hit any key to stop autoboot:  0
icorem6qdl-rqs>

Cc: Stefano Babic <sbabic@denx.de>
Cc: Matteo Lisi <matteo.lisi@engicam.com>
Cc: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
 arch/arm/cpu/armv7/mx6/Kconfig          |  11 +
 arch/arm/dts/Makefile                   |   1 +
 arch/arm/dts/imx6q-icore-rqs.dts        |  50 ++++
 arch/arm/dts/imx6qdl-icore-rqs.dtsi     |  83 +++++++
 board/engicam/icorem6_rqs/Kconfig       |  12 +
 board/engicam/icorem6_rqs/MAINTAINERS   |   6 +
 board/engicam/icorem6_rqs/Makefile      |   6 +
 board/engicam/icorem6_rqs/README        |  30 +++
 board/engicam/icorem6_rqs/icorem6_rqs.c | 402 ++++++++++++++++++++++++++++++++
 configs/imx6q_icore_rqs_mmc_defconfig   |  38 +++
 include/configs/imx6qdl_icore_rqs.h     | 124 ++++++++++
 11 files changed, 763 insertions(+)
 create mode 100644 arch/arm/dts/imx6q-icore-rqs.dts
 create mode 100644 arch/arm/dts/imx6qdl-icore-rqs.dtsi
 create mode 100644 board/engicam/icorem6_rqs/Kconfig
 create mode 100644 board/engicam/icorem6_rqs/MAINTAINERS
 create mode 100644 board/engicam/icorem6_rqs/Makefile
 create mode 100644 board/engicam/icorem6_rqs/README
 create mode 100644 board/engicam/icorem6_rqs/icorem6_rqs.c
 create mode 100644 configs/imx6q_icore_rqs_mmc_defconfig
 create mode 100644 include/configs/imx6qdl_icore_rqs.h

diff --git a/arch/arm/cpu/armv7/mx6/Kconfig b/arch/arm/cpu/armv7/mx6/Kconfig
index 2cc4893..b5e40ea 100644
--- a/arch/arm/cpu/armv7/mx6/Kconfig
+++ b/arch/arm/cpu/armv7/mx6/Kconfig
@@ -107,6 +107,16 @@ config TARGET_MX6Q_ICORE
 	select DM_THERMAL
 	select SUPPORT_SPL
 
+config TARGET_MX6Q_ICORE_RQS
+	bool "Support Engicam i.Core RQS"
+	select MX6QDL
+	select OF_CONTROL
+	select DM
+	select DM_GPIO
+	select DM_MMC
+	select DM_THERMAL
+	select SUPPORT_SPL
+
 config TARGET_MX6QSABREAUTO
 	bool "mx6qsabreauto"
 	select DM
@@ -249,6 +259,7 @@ source "board/el/el6x/Kconfig"
 source "board/embest/mx6boards/Kconfig"
 source "board/engicam/geam6ul/Kconfig"
 source "board/engicam/icorem6/Kconfig"
+source "board/engicam/icorem6_rqs/Kconfig"
 source "board/freescale/mx6qarm2/Kconfig"
 source "board/freescale/mx6qsabreauto/Kconfig"
 source "board/freescale/mx6sabresd/Kconfig"
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index d79b2e2..be38c83 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -285,6 +285,7 @@ dtb-$(CONFIG_VF610) += vf500-colibri.dtb \
 dtb-$(CONFIG_MX6) += imx6ull-14x14-evk.dtb \
 	imx6dl-icore.dtb \
 	imx6q-icore.dtb \
+	imx6q-icore-rqs.dtb \
 	imx6ul-geam-kit.dtb
 
 dtb-$(CONFIG_MX7) += imx7-colibri.dtb
diff --git a/arch/arm/dts/imx6q-icore-rqs.dts b/arch/arm/dts/imx6q-icore-rqs.dts
new file mode 100644
index 0000000..9fa6ba0
--- /dev/null
+++ b/arch/arm/dts/imx6q-icore-rqs.dts
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2015 Amarula Solutions B.V.
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ *  a) This file is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU General Public License
+ *     version 2 as published by the Free Software Foundation.
+ *
+ *     This file is distributed in the hope that it will be useful
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ * Or, alternatively
+ *
+ *  b) Permission is hereby granted, free of charge, to any person
+ *     obtaining a copy of this software and associated documentation
+ *     files (the "Software"), to deal in the Software without
+ *     restriction, including without limitation the rights to use
+ *     copy, modify, merge, publish, distribute, sublicense, and/or
+ *     sell copies of the Software, and to permit persons to whom the
+ *     Software is furnished to do so, subject to the following
+ *     conditions:
+ *
+ *     The above copyright notice and this permission notice shall be
+ *     included in all copies or substantial portions of the Software.
+ *
+ *     THE SOFTWARE IS PROVIDED , WITHOUT WARRANTY OF ANY KIND
+ *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY
+ *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *     OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+
+#include "imx6q.dtsi"
+#include "imx6qdl-icore-rqs.dtsi"
+
+/ {
+	model = "Engicam i.CoreM6 Quad/Dual RQS Starter Kit";
+	compatible = "engicam,imx6-icore-rqs", "fsl,imx6q";
+};
diff --git a/arch/arm/dts/imx6qdl-icore-rqs.dtsi b/arch/arm/dts/imx6qdl-icore-rqs.dtsi
new file mode 100644
index 0000000..343ab35
--- /dev/null
+++ b/arch/arm/dts/imx6qdl-icore-rqs.dtsi
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2015 Amarula Solutions B.V.
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ *  a) This file is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU General Public License
+ *     version 2 as published by the Free Software Foundation.
+ *
+ *     This file is distributed in the hope that it will be useful
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ * Or, alternatively
+ *
+ *  b) Permission is hereby granted, free of charge, to any person
+ *     obtaining a copy of this software and associated documentation
+ *     files (the "Software"), to deal in the Software without
+ *     restriction, including without limitation the rights to use
+ *     copy, modify, merge, publish, distribute, sublicense, and/or
+ *     sell copies of the Software, and to permit persons to whom the
+ *     Software is furnished to do so, subject to the following
+ *     conditions:
+ *
+ *     The above copyright notice and this permission notice shall be
+ *     included in all copies or substantial portions of the Software.
+ *
+ *     THE SOFTWARE IS PROVIDED , WITHOUT WARRANTY OF ANY KIND
+ *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY
+ *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *     OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/clock/imx6qdl-clock.h>
+
+/ {
+	memory {
+		reg = <0x10000000 0x80000000>;
+	};
+};
+
+&uart4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart4>;
+	status = "okay";
+};
+
+&usdhc3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usdhc3>;
+	cd-gpios = <&gpio1 1 GPIO_ACTIVE_LOW>;
+	no-1-8-v;
+	status = "okay";
+};
+
+&iomuxc {
+	pinctrl_uart4: uart4grp {
+		fsl,pins = <
+			MX6QDL_PAD_KEY_COL0__UART4_TX_DATA 0x1b0b1
+			MX6QDL_PAD_KEY_ROW0__UART4_RX_DATA 0x1b0b1
+		>;
+	};
+
+	pinctrl_usdhc3: usdhc3grp {
+		fsl,pins = <
+			MX6QDL_PAD_SD3_CMD__SD3_CMD    0x17070
+			MX6QDL_PAD_SD3_CLK__SD3_CLK    0x10070
+			MX6QDL_PAD_SD3_DAT0__SD3_DATA0 0x17070
+			MX6QDL_PAD_SD3_DAT1__SD3_DATA1 0x17070
+			MX6QDL_PAD_SD3_DAT2__SD3_DATA2 0x17070
+			MX6QDL_PAD_SD3_DAT3__SD3_DATA3 0x17070
+		>;
+	};
+};
diff --git a/board/engicam/icorem6_rqs/Kconfig b/board/engicam/icorem6_rqs/Kconfig
new file mode 100644
index 0000000..1352c68
--- /dev/null
+++ b/board/engicam/icorem6_rqs/Kconfig
@@ -0,0 +1,12 @@
+if TARGET_MX6Q_ICORE_RQS
+
+config SYS_BOARD
+	default "icorem6_rqs"
+
+config SYS_VENDOR
+	default "engicam"
+
+config SYS_CONFIG_NAME
+	default "imx6qdl_icore_rqs"
+
+endif
diff --git a/board/engicam/icorem6_rqs/MAINTAINERS b/board/engicam/icorem6_rqs/MAINTAINERS
new file mode 100644
index 0000000..4c6bd62
--- /dev/null
+++ b/board/engicam/icorem6_rqs/MAINTAINERS
@@ -0,0 +1,6 @@
+ICOREM6QDL_RQS BOARD
+M:	Jagan Teki <jagan@amarulasolutions.com>
+S:	Maintained
+F:	board/engicam/icorem6_rqs
+F:	include/configs/imx6qdl_icore_rqs.h
+F:	configs/imx6q_icore_rqs_mmc_defconfig
diff --git a/board/engicam/icorem6_rqs/Makefile b/board/engicam/icorem6_rqs/Makefile
new file mode 100644
index 0000000..2e3933c
--- /dev/null
+++ b/board/engicam/icorem6_rqs/Makefile
@@ -0,0 +1,6 @@
+# Copyright (C) 2016 Amarula Solutions B.V.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y  := icorem6_rqs.o
diff --git a/board/engicam/icorem6_rqs/README b/board/engicam/icorem6_rqs/README
new file mode 100644
index 0000000..f94e6e1
--- /dev/null
+++ b/board/engicam/icorem6_rqs/README
@@ -0,0 +1,30 @@
+How to use U-Boot on Engicam i.CoreM6 RQS Quad/Dual Starter Kit:
+----------------------------------------------------------------
+
+$ make mrproper
+
+- Configure U-Boot for Engicam i.CoreM6 RQS Quad/Dual:
+$ make imx6q_icore_rqs_mmc_defconfig
+
+- Build U-Boot
+$ make
+
+This will generate the SPL image called SPL and the u-boot-dtb.img.
+
+- Flash the SPL image into the micro SD card:
+
+sudo dd if=SPL of=/dev/mmcblk0 bs=1k seek=1; sync
+
+- Flash the u-boot-dtb.img image into the micro SD card:
+
+sudo dd if=u-boot-dtb.img of=/dev/mmcblk0 bs=1k seek=69; sync
+
+- Jumper settings:
+
+MMC Boot: JM3 Closed
+
+- Connect the Serial cable between the Starter Kit and the PC for the console.
+(J28 is the Linux Serial console connector)
+
+- Insert the micro SD card in the board, power it up and U-Boot messages should
+come up.
diff --git a/board/engicam/icorem6_rqs/icorem6_rqs.c b/board/engicam/icorem6_rqs/icorem6_rqs.c
new file mode 100644
index 0000000..0368191
--- /dev/null
+++ b/board/engicam/icorem6_rqs/icorem6_rqs.c
@@ -0,0 +1,402 @@
+/*
+ * Copyright (C) 2016 Amarula Solutions B.V.
+ * Copyright (C) 2016 Engicam S.r.l.
+ * Author: Jagan Teki <jagan@amarulasolutions.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+
+#include <asm/io.h>
+#include <asm/gpio.h>
+#include <linux/sizes.h>
+
+#include <asm/arch/clock.h>
+#include <asm/arch/crm_regs.h>
+#include <asm/arch/iomux.h>
+#include <asm/arch/mx6-pins.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/imx-common/iomux-v3.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define UART_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |		\
+	PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |		\
+	PAD_CTL_DSE_40ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
+
+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)),
+};
+
+int board_early_init_f(void)
+{
+	SETUP_IOMUX_PADS(uart4_pads);
+
+	return 0;
+}
+
+int board_init(void)
+{
+	/* Address of boot parameters */
+	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
+
+	return 0;
+}
+
+int dram_init(void)
+{
+	gd->ram_size = imx_ddr_size();
+
+	return 0;
+}
+
+#ifdef CONFIG_SPL_BUILD
+#include <libfdt.h>
+#include <spl.h>
+
+#include <asm/arch/crm_regs.h>
+#include <asm/arch/mx6-ddr.h>
+
+/* MMC board initialization is needed till adding DM support in SPL */
+#if defined(CONFIG_FSL_ESDHC) && !defined(CONFIG_DM_MMC)
+#include <mmc.h>
+#include <fsl_esdhc.h>
+
+#define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE |             \
+	PAD_CTL_PUS_47K_UP  | PAD_CTL_SPEED_HIGH |               \
+	PAD_CTL_DSE_40ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
+
+static iomux_v3_cfg_t const usdhc1_pads[] = {
+	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)),
+};
+
+#define USDHC1_CD_GPIO	IMX_GPIO_NR(1, 1)
+
+struct fsl_esdhc_cfg usdhc_cfg[1] = {
+	{USDHC3_BASE_ADDR, 1, 4},
+};
+
+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 USDHC3_BASE_ADDR:
+		ret = 1;
+		break;
+	}
+
+	return ret;
+}
+
+int board_mmc_init(bd_t *bis)
+{
+	int i, ret;
+
+	/*
+	* According to the board_mmc_init() the following map is done:
+	* (U-boot device node)    (Physical Port)
+	* mmc0				USDHC1
+	*/
+	for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
+		switch (i) {
+		case 0:
+			SETUP_IOMUX_PADS(usdhc1_pads);
+			gpio_direction_input(USDHC1_CD_GPIO);
+			usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
+			break;
+		default:
+			printf("Warning - USDHC%d controller not supporting\n",
+			       i + 1);
+			return 0;
+		}
+
+		ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
+		if (ret) {
+			printf("Warning: failed to initialize mmc dev %d\n", i);
+			return ret;
+		}
+	}
+
+	return 0;
+}
+#endif
+
+/*
+ * Driving strength:
+ *   0x30 == 40 Ohm
+ *   0x28 == 48 Ohm
+ */
+
+#define IMX6DQ_DRIVE_STRENGTH		0x30
+#define IMX6SDL_DRIVE_STRENGTH		0x28
+
+/* configure MX6Q/DUAL mmdc DDR io registers */
+static struct mx6dq_iomux_ddr_regs mx6dq_ddr_ioregs = {
+	.dram_sdqs0 = 0x28,
+	.dram_sdqs1 = 0x28,
+	.dram_sdqs2 = 0x28,
+	.dram_sdqs3 = 0x28,
+	.dram_sdqs4 = 0x28,
+	.dram_sdqs5 = 0x28,
+	.dram_sdqs6 = 0x28,
+	.dram_sdqs7 = 0x28,
+	.dram_dqm0 = 0x28,
+	.dram_dqm1 = 0x28,
+	.dram_dqm2 = 0x28,
+	.dram_dqm3 = 0x28,
+	.dram_dqm4 = 0x28,
+	.dram_dqm5 = 0x28,
+	.dram_dqm6 = 0x28,
+	.dram_dqm7 = 0x28,
+	.dram_cas = 0x30,
+	.dram_ras = 0x30,
+	.dram_sdclk_0 = 0x30,
+	.dram_sdclk_1 = 0x30,
+	.dram_reset = 0x30,
+	.dram_sdcke0 = 0x3000,
+	.dram_sdcke1 = 0x3000,
+	.dram_sdba2 = 0x00000000,
+	.dram_sdodt0 = 0x30,
+	.dram_sdodt1 = 0x30,
+};
+
+/* configure MX6Q/DUAL mmdc GRP io registers */
+static struct mx6dq_iomux_grp_regs mx6dq_grp_ioregs = {
+	.grp_b0ds = 0x30,
+	.grp_b1ds = 0x30,
+	.grp_b2ds = 0x30,
+	.grp_b3ds = 0x30,
+	.grp_b4ds = 0x30,
+	.grp_b5ds = 0x30,
+	.grp_b6ds = 0x30,
+	.grp_b7ds = 0x30,
+	.grp_addds = 0x30,
+	.grp_ddrmode_ctl = 0x00020000,
+	.grp_ddrpke = 0x00000000,
+	.grp_ddrmode = 0x00020000,
+	.grp_ctlds = 0x30,
+	.grp_ddr_type = 0x000c0000,
+};
+
+/* configure MX6SOLO/DUALLITE mmdc DDR io registers */
+struct mx6sdl_iomux_ddr_regs mx6sdl_ddr_ioregs = {
+	.dram_sdclk_0 = 0x30,
+	.dram_sdclk_1 = 0x30,
+	.dram_cas = 0x30,
+	.dram_ras = 0x30,
+	.dram_reset = 0x30,
+	.dram_sdcke0 = 0x30,
+	.dram_sdcke1 = 0x30,
+	.dram_sdba2 = 0x00000000,
+	.dram_sdodt0 = 0x30,
+	.dram_sdodt1 = 0x30,
+	.dram_sdqs0 = 0x28,
+	.dram_sdqs1 = 0x28,
+	.dram_sdqs2 = 0x28,
+	.dram_sdqs3 = 0x28,
+	.dram_sdqs4 = 0x28,
+	.dram_sdqs5 = 0x28,
+	.dram_sdqs6 = 0x28,
+	.dram_sdqs7 = 0x28,
+	.dram_dqm0 = 0x28,
+	.dram_dqm1 = 0x28,
+	.dram_dqm2 = 0x28,
+	.dram_dqm3 = 0x28,
+	.dram_dqm4 = 0x28,
+	.dram_dqm5 = 0x28,
+	.dram_dqm6 = 0x28,
+	.dram_dqm7 = 0x28,
+};
+
+/* configure MX6SOLO/DUALLITE mmdc GRP io registers */
+struct mx6sdl_iomux_grp_regs mx6sdl_grp_ioregs = {
+	.grp_ddr_type = 0x000c0000,
+	.grp_ddrmode_ctl = 0x00020000,
+	.grp_ddrpke = 0x00000000,
+	.grp_addds = 0x30,
+	.grp_ctlds = 0x30,
+	.grp_ddrmode = 0x00020000,
+	.grp_b0ds = 0x28,
+	.grp_b1ds = 0x28,
+	.grp_b2ds = 0x28,
+	.grp_b3ds = 0x28,
+	.grp_b4ds = 0x28,
+	.grp_b5ds = 0x28,
+	.grp_b6ds = 0x28,
+	.grp_b7ds = 0x28,
+};
+
+/* mt41j256 */
+static struct mx6_ddr3_cfg mt41j256 = {
+	.mem_speed = 1066,
+	.density = 2,
+	.width = 16,
+	.banks = 8,
+	.rowaddr = 13,
+	.coladdr = 10,
+	.pagesz = 2,
+	.trcd = 1375,
+	.trcmin = 4875,
+	.trasmin = 3500,
+	.SRT = 0,
+};
+
+static struct mx6_mmdc_calibration mx6dq_mmdc_calib = {
+	.p0_mpwldectrl0 = 0x000E0009,
+	.p0_mpwldectrl1 = 0x0018000E,
+	.p1_mpwldectrl0 = 0x00000007,
+	.p1_mpwldectrl1 = 0x00000000,
+	.p0_mpdgctrl0 = 0x43280334,
+	.p0_mpdgctrl1 = 0x031C0314,
+	.p1_mpdgctrl0 = 0x4318031C,
+	.p1_mpdgctrl1 = 0x030C0258,
+	.p0_mprddlctl = 0x3E343A40,
+	.p1_mprddlctl = 0x383C3844,
+	.p0_mpwrdlctl = 0x40404440,
+	.p1_mpwrdlctl = 0x4C3E4446,
+};
+
+/* DDR 64bit */
+static struct mx6_ddr_sysinfo mem_q = {
+	.ddr_type	= DDR_TYPE_DDR3,
+	.dsize		= 2,
+	.cs1_mirror	= 0,
+	/* config for full 4GB range so that get_mem_size() works */
+	.cs_density	= 32,
+	.ncs		= 1,
+	.bi_on		= 1,
+	.rtt_nom	= 2,
+	.rtt_wr		= 2,
+	.ralat		= 5,
+	.walat		= 0,
+	.mif3_mode	= 3,
+	.rst_to_cke	= 0x23,
+	.sde_to_rst	= 0x10,
+};
+
+static struct mx6_mmdc_calibration mx6dl_mmdc_calib = {
+	.p0_mpwldectrl0 = 0x001F0024,
+	.p0_mpwldectrl1 = 0x00110018,
+	.p1_mpwldectrl0 = 0x001F0024,
+	.p1_mpwldectrl1 = 0x00110018,
+	.p0_mpdgctrl0 = 0x4230022C,
+	.p0_mpdgctrl1 = 0x02180220,
+	.p1_mpdgctrl0 = 0x42440248,
+	.p1_mpdgctrl1 = 0x02300238,
+	.p0_mprddlctl = 0x44444A48,
+	.p1_mprddlctl = 0x46484A42,
+	.p0_mpwrdlctl = 0x38383234,
+	.p1_mpwrdlctl = 0x3C34362E,
+};
+
+/* DDR 64bit 1GB */
+static struct mx6_ddr_sysinfo mem_dl = {
+	.dsize		= 2,
+	.cs1_mirror	= 0,
+	/* config for full 4GB range so that get_mem_size() works */
+	.cs_density	= 32,
+	.ncs		= 1,
+	.bi_on		= 1,
+	.rtt_nom	= 1,
+	.rtt_wr		= 1,
+	.ralat		= 5,
+	.walat		= 0,
+	.mif3_mode	= 3,
+	.rst_to_cke	= 0x23,
+	.sde_to_rst	= 0x10,
+};
+
+/* DDR 32bit 512MB */
+static struct mx6_ddr_sysinfo mem_s = {
+	.dsize		= 1,
+	.cs1_mirror	= 0,
+	/* config for full 4GB range so that get_mem_size() works */
+	.cs_density	= 32,
+	.ncs		= 1,
+	.bi_on		= 1,
+	.rtt_nom	= 1,
+	.rtt_wr		= 1,
+	.ralat		= 5,
+	.walat		= 0,
+	.mif3_mode	= 3,
+	.rst_to_cke	= 0x23,
+	.sde_to_rst	= 0x10,
+};
+
+static void ccgr_init(void)
+{
+	struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
+
+	writel(0x00003F3F, &ccm->CCGR0);
+	writel(0x0030FC00, &ccm->CCGR1);
+	writel(0x000FC000, &ccm->CCGR2);
+	writel(0x3F300000, &ccm->CCGR3);
+	writel(0xFF00F300, &ccm->CCGR4);
+	writel(0x0F0000C3, &ccm->CCGR5);
+	writel(0x000003CC, &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)
+{
+	if (is_mx6solo()) {
+		mx6sdl_dram_iocfg(32, &mx6sdl_ddr_ioregs, &mx6sdl_grp_ioregs);
+		mx6_dram_cfg(&mem_s, &mx6dl_mmdc_calib, &mt41j256);
+	} else if (is_mx6dl()) {
+		mx6sdl_dram_iocfg(64, &mx6sdl_ddr_ioregs, &mx6sdl_grp_ioregs);
+		mx6_dram_cfg(&mem_dl, &mx6dl_mmdc_calib, &mt41j256);
+	} else if (is_mx6dq()) {
+		mx6dq_dram_iocfg(64, &mx6dq_ddr_ioregs, &mx6dq_grp_ioregs);
+		mx6_dram_cfg(&mem_q, &mx6dq_mmdc_calib, &mt41j256);
+	}
+
+	udelay(100);
+}
+
+void board_init_f(ulong dummy)
+{
+	ccgr_init();
+
+	/* setup AIPS and disable watchdog */
+	arch_cpu_init();
+
+	gpr_init();
+
+	/* iomux */
+	board_early_init_f();
+
+	/* setup GP timer */
+	timer_init();
+
+	/* 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
diff --git a/configs/imx6q_icore_rqs_mmc_defconfig b/configs/imx6q_icore_rqs_mmc_defconfig
new file mode 100644
index 0000000..eeecef8
--- /dev/null
+++ b/configs/imx6q_icore_rqs_mmc_defconfig
@@ -0,0 +1,38 @@
+CONFIG_ARM=y
+CONFIG_ARCH_MX6=y
+CONFIG_TARGET_MX6Q_ICORE_RQS=y
+CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/imx-common/spl_sd.cfg,ENV_IS_IN_MMC"
+CONFIG_DEFAULT_FDT_FILE="imx6q-icore-rqs.dtb"
+CONFIG_DEFAULT_DEVICE_TREE="imx6q-icore-rqs"
+CONFIG_SYS_PROMPT="icorem6qdl-rqs> "
+CONFIG_SPL=y
+CONFIG_BOOTDELAY=3
+CONFIG_BOARD_EARLY_INIT_F=y
+CONFIG_DISPLAY_CPUINFO=y
+CONFIG_HUSH_PARSER=y
+CONFIG_AUTO_COMPLETE=y
+CONFIG_SYS_MAXARGS=32
+# CONFIG_CMD_IMLS is not set
+# CONFIG_BLK is not set
+# CONFIG_DM_MMC_OPS is not set
+CONFIG_CMD_BOOTZ=y
+CONFIG_CMD_GPIO=y
+CONFIG_CMD_MEMTEST=y
+CONFIG_CMD_MMC=y
+CONFIG_CMD_CACHE=y
+CONFIG_CMD_EXT2=y
+CONFIG_CMD_EXT4=y
+CONFIG_CMD_EXT4_WRITE=y
+CONFIG_CMD_FAT=y
+CONFIG_CMD_FS_GENERIC=y
+CONFIG_OF_LIBFDT=y
+CONFIG_MXC_UART=y
+CONFIG_PINCTRL=y
+CONFIG_PINCTRL_IMX6=y
+CONFIG_SPL_LIBDISK_SUPPORT=y
+CONFIG_SPL_LIBCOMMON_SUPPORT=y
+CONFIG_SPL_LIBGENERIC_SUPPORT=y
+CONFIG_SPL_SERIAL_SUPPORT=y
+CONFIG_SPL_GPIO_SUPPORT=y
+CONFIG_SPL_WATCHDOG_SUPPORT=y
+CONFIG_SPL_EXT_SUPPORT=y
diff --git a/include/configs/imx6qdl_icore_rqs.h b/include/configs/imx6qdl_icore_rqs.h
new file mode 100644
index 0000000..5b4f2c9
--- /dev/null
+++ b/include/configs/imx6qdl_icore_rqs.h
@@ -0,0 +1,124 @@
+/*
+ * Copyright (C) 2016 Amarula Solutions B.V.
+ * Copyright (C) 2016 Engicam S.r.l.
+ *
+ * Configuration settings for the Engicam i.CoreM6 QDL RQS Starter Kits.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __IMX6QLD_ICORE_RQS_CONFIG_H
+#define __IMX6QLD_ICORE_RQS_CONFIG_H
+
+#include <linux/sizes.h>
+#include "mx6_common.h"
+
+/* Size of malloc() pool */
+#define CONFIG_SYS_MALLOC_LEN		(16 * SZ_1M)
+
+/* Total Size of Environment Sector */
+#define CONFIG_ENV_SIZE			SZ_128K
+
+/* Allow to overwrite serial and ethaddr */
+#define CONFIG_ENV_OVERWRITE
+
+/* Environment */
+#ifndef CONFIG_ENV_IS_NOWHERE
+/* Environment in MMC */
+# if defined(CONFIG_ENV_IS_IN_MMC)
+#  define CONFIG_ENV_OFFSET		0x100000
+# endif
+#endif
+
+/* Default environment */
+#define CONFIG_EXTRA_ENV_SETTINGS \
+	"script=boot.scr\0" \
+	"image=zImage\0" \
+	"console=ttymxc3\0" \
+	"fdt_high=0xffffffff\0" \
+	"fdt_file=" CONFIG_DEFAULT_FDT_FILE "\0" \
+	"fdt_addr=0x18000000\0" \
+	"boot_fdt=try\0" \
+	"mmcdev=0\0" \
+	"mmcpart=1\0" \
+	"mmcroot=/dev/mmcblk0p2 rootwait rw\0" \
+	"mmcautodetect=yes\0" \
+	"mmcargs=setenv bootargs console=${console},${baudrate} " \
+		"root=${mmcroot}\0" \
+	"loadbootscript=" \
+		"fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script};\0" \
+	"bootscript=echo Running bootscript from mmc ...; " \
+		"source\0" \
+	"loadimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${image}\0" \
+	"loadfdt=fatload mmc ${mmcdev}:${mmcpart} ${fdt_addr} ${fdt_file}\0" \
+	"mmcboot=echo Booting from mmc ...; " \
+		"run mmcargs; " \
+		"if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \
+			"if run loadfdt; then " \
+				"bootz ${loadaddr} - ${fdt_addr}; " \
+			"else " \
+				"if test ${boot_fdt} = try; then " \
+					"bootz; " \
+				"else " \
+					"echo WARN: Cannot load the DT; " \
+				"fi; " \
+			"fi; " \
+		"else " \
+			"bootz; " \
+		"fi\0"
+
+#define CONFIG_BOOTCOMMAND \
+	   "mmc dev ${mmcdev};" \
+	   "mmc dev ${mmcdev}; if mmc rescan; then " \
+		   "if run loadbootscript; then " \
+			   "run bootscript; " \
+		   "else " \
+			"if run loadimage; then " \
+				"run mmcboot; " \
+			"fi; " \
+		   "fi; " \
+	   "fi"
+
+/* Miscellaneous configurable options */
+#define CONFIG_SYS_MEMTEST_START	0x80000000
+#define CONFIG_SYS_MEMTEST_END		(CONFIG_SYS_MEMTEST_START + 0x8000000)
+
+#define CONFIG_SYS_LOAD_ADDR		CONFIG_LOADADDR
+#define CONFIG_SYS_HZ			1000
+
+/* Physical Memory Map */
+#define CONFIG_NR_DRAM_BANKS		1
+#define PHYS_SDRAM			MMDC0_ARB_BASE_ADDR
+
+#define CONFIG_SYS_SDRAM_BASE		PHYS_SDRAM
+#define CONFIG_SYS_INIT_RAM_ADDR	IRAM_BASE_ADDR
+#define CONFIG_SYS_INIT_RAM_SIZE	IRAM_SIZE
+
+#define CONFIG_SYS_INIT_SP_OFFSET	(CONFIG_SYS_INIT_RAM_SIZE - \
+					GENERATED_GBL_DATA_SIZE)
+#define CONFIG_SYS_INIT_SP_ADDR		(CONFIG_SYS_INIT_RAM_ADDR + \
+					CONFIG_SYS_INIT_SP_OFFSET)
+
+/* UART */
+#ifdef CONFIG_MXC_UART
+# define CONFIG_MXC_UART_BASE		UART4_BASE
+#endif
+
+/* MMC */
+#ifdef CONFIG_FSL_USDHC
+# define CONFIG_SYS_MMC_ENV_DEV		0
+# define CONFIG_SYS_FSL_USDHC_NUM	1
+# define CONFIG_SYS_FSL_ESDHC_ADDR	USDHC2_BASE_ADDR
+#endif
+
+/* SPL */
+#ifdef CONFIG_SPL
+# define CONFIG_SPL_MMC_SUPPORT
+# include "imx6_spl.h"
+# ifdef CONFIG_SPL_BUILD
+#  undef CONFIG_DM_GPIO
+#  undef CONFIG_DM_MMC
+# endif
+#endif
+
+#endif /* __IMX6QLD_ICORE_RQS_CONFIG_H */
-- 
1.9.1