[U-Boot] [PATCH v4 04/17] arm: imx: Add Engicam i.CoreM6 QDL Starter Kit initial support
Jagan Teki
jagannadh.teki at gmail.com
Sun Sep 25 21:42:49 CEST 2016
Boot Log for i.CoreM6 DualLite/Solo Starter Kit:
-----------------------------------------------
U-Boot SPL 2016.09-rc2-30739-gd1fa290 (Sep 17 2016 - 00:37:46)
Trying to boot from MMC1
U-Boot 2016.09-rc2-30739-gd1fa290 (Sep 17 2016 - 00:37:46 +0530)
CPU: Freescale i.MX6SOLO rev1.3 at 792MHz
CPU: Industrial temperature grade (-40C to 105C) at 31C
Reset cause: POR
DRAM: 256 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
switch to partitions #0, OK
mmc0 is current device
switch to partitions #0, OK
mmc0 is current device
reading boot.scr
** Unable to read file boot.scr **
reading zImage
6741808 bytes read in 341 ms (18.9 MiB/s)
Booting from mmc ...
reading imx6dl-icore.dtb
30600 bytes read in 19 ms (1.5 MiB/s)
Booting using the fdt blob at 0x18000000
Using Device Tree in place at 18000000, end 1800a787
Starting kernel ...
[ 0.000000] Booting Linux on physical CPU 0x0
Boot Log for i.CoreM6 Quad/Dual Starter Kit:
--------------------------------------------
U-Boot SPL 2016.09-rc2-30739-gd1fa290 (Sep 17 2016 - 00:37:46)
Trying to boot from MMC1
U-Boot 2016.09-rc2-30739-gd1fa290 (Sep 17 2016 - 00:37:46 +0530)
CPU: Freescale i.MX6Q rev1.2 at 792MHz
CPU: Industrial temperature grade (-40C to 105C) at 28C
Reset cause: POR
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>
Cc: Stefano Babic <sbabic at denx.de>
Cc: Fabio Estevam <fabio.estevam at nxp.com>
Cc: Matteo Lisi <matteo.lisi at engicam.com>
Cc: Michael Trimarchi <michael at amarulasolutions.com>
Acked-by: Peng Fan <peng.fan at nxp.com>
Signed-off-by: Jagan Teki <jagan at amarulasolutions.com>
---
arch/arm/cpu/armv7/mx6/Kconfig | 8 +
arch/arm/include/asm/imx-common/sys_proto.h | 2 +
board/engicam/icorem6/Kconfig | 12 +
board/engicam/icorem6/MAINTAINERS | 6 +
board/engicam/icorem6/Makefile | 6 +
board/engicam/icorem6/README | 31 +++
board/engicam/icorem6/icorem6.c | 400 ++++++++++++++++++++++++++++
configs/imx6qdl_icore_mmc_defconfig | 27 ++
include/configs/imx6qdl_icore.h | 126 +++++++++
9 files changed, 618 insertions(+)
create mode 100644 board/engicam/icorem6/Kconfig
create mode 100644 board/engicam/icorem6/MAINTAINERS
create mode 100644 board/engicam/icorem6/Makefile
create mode 100644 board/engicam/icorem6/README
create mode 100644 board/engicam/icorem6/icorem6.c
create mode 100644 configs/imx6qdl_icore_mmc_defconfig
create mode 100644 include/configs/imx6qdl_icore.h
diff --git a/arch/arm/cpu/armv7/mx6/Kconfig b/arch/arm/cpu/armv7/mx6/Kconfig
index d851b26..5d549bd 100644
--- a/arch/arm/cpu/armv7/mx6/Kconfig
+++ b/arch/arm/cpu/armv7/mx6/Kconfig
@@ -95,6 +95,13 @@ config TARGET_MX6CUBOXI
config TARGET_MX6QARM2
bool "mx6qarm2"
+config TARGET_MX6Q_ICORE
+ bool "Support Engicam i.Core"
+ select MX6QDL
+ select DM
+ select DM_THERMAL
+ select SUPPORT_SPL
+
config TARGET_MX6QSABREAUTO
bool "mx6qsabreauto"
select DM
@@ -225,6 +232,7 @@ source "board/compulab/cm_fx6/Kconfig"
source "board/congatec/cgtqmx6eval/Kconfig"
source "board/el/el6x/Kconfig"
source "board/embest/mx6boards/Kconfig"
+source "board/engicam/icorem6/Kconfig"
source "board/freescale/mx6qarm2/Kconfig"
source "board/freescale/mx6qsabreauto/Kconfig"
source "board/freescale/mx6sabresd/Kconfig"
diff --git a/arch/arm/include/asm/imx-common/sys_proto.h b/arch/arm/include/asm/imx-common/sys_proto.h
index 6ace8bb..005435a 100644
--- a/arch/arm/include/asm/imx-common/sys_proto.h
+++ b/arch/arm/include/asm/imx-common/sys_proto.h
@@ -30,8 +30,10 @@
#define is_mx6dqp() (is_cpu_type(MXC_CPU_MX6QP) || is_cpu_type(MXC_CPU_MX6DP))
#define is_mx6dq() (is_cpu_type(MXC_CPU_MX6Q) || is_cpu_type(MXC_CPU_MX6D))
#define is_mx6sdl() (is_cpu_type(MXC_CPU_MX6SOLO) || is_cpu_type(MXC_CPU_MX6DL))
+#define is_mx6dl() (is_cpu_type(MXC_CPU_MX6DL))
#define is_mx6sx() (is_cpu_type(MXC_CPU_MX6SX))
#define is_mx6sl() (is_cpu_type(MXC_CPU_MX6SL))
+#define is_mx6solo() (is_cpu_type(MXC_CPU_MX6SOLO))
#define is_mx6ul() (is_cpu_type(MXC_CPU_MX6UL))
#define is_mx6ull() (is_cpu_type(MXC_CPU_MX6ULL))
diff --git a/board/engicam/icorem6/Kconfig b/board/engicam/icorem6/Kconfig
new file mode 100644
index 0000000..6d62f0e
--- /dev/null
+++ b/board/engicam/icorem6/Kconfig
@@ -0,0 +1,12 @@
+if TARGET_MX6Q_ICORE
+
+config SYS_BOARD
+ default "icorem6"
+
+config SYS_VENDOR
+ default "engicam"
+
+config SYS_CONFIG_NAME
+ default "imx6qdl_icore"
+
+endif
diff --git a/board/engicam/icorem6/MAINTAINERS b/board/engicam/icorem6/MAINTAINERS
new file mode 100644
index 0000000..3e06c6b
--- /dev/null
+++ b/board/engicam/icorem6/MAINTAINERS
@@ -0,0 +1,6 @@
+ICOREM6QDL BOARD
+M: Jagan Teki <jagan at amarulasolutions.com>
+S: Maintained
+F: board/engicam/icorem6
+F: include/configs/icorem6qdl.h
+F: configs/icorem6qdl_defconfig
diff --git a/board/engicam/icorem6/Makefile b/board/engicam/icorem6/Makefile
new file mode 100644
index 0000000..9ec9ecd
--- /dev/null
+++ b/board/engicam/icorem6/Makefile
@@ -0,0 +1,6 @@
+# Copyright (C) 2016 Amarula Solutions B.V.
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+obj-y := icorem6.o
diff --git a/board/engicam/icorem6/README b/board/engicam/icorem6/README
new file mode 100644
index 0000000..cf2eff2
--- /dev/null
+++ b/board/engicam/icorem6/README
@@ -0,0 +1,31 @@
+How to use U-Boot on Engicam i.CoreM6 DualLite/Solo and Quad/Dual Starter Kit:
+-----------------------------------------------------------------------------
+
+- Build U-Boot for Engicam i.CoreM6 QDL:
+
+$ make mrproper
+$ make icorem6qdl_mmc_defconfig
+$ make
+
+This will generate the SPL image called SPL and the u-boot.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.img image into the micro SD card:
+
+sudo dd if=u-boot.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.
+
+- Note: For loading Linux on Quad/Dual modules set the dtb as
+ icorem6qdl> setenv fdt_file imx6q-icore.dtb
diff --git a/board/engicam/icorem6/icorem6.c b/board/engicam/icorem6/icorem6.c
new file mode 100644
index 0000000..1856972
--- /dev/null
+++ b/board/engicam/icorem6/icorem6.c
@@ -0,0 +1,400 @@
+/*
+ * Copyright (C) 2016 Amarula Solutions B.V.
+ * Copyright (C) 2016 Engicam S.r.l.
+ * Author: Jagan Teki <jagan at amarulasolutions.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <fsl_esdhc.h>
+#include <mmc.h>
+
+#include <asm/io.h>
+#include <asm/gpio.h>
+#include <linux/sizes.h>
+
+#include <asm/arch/clock.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)
+
+#define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
+ PAD_CTL_PUS_22K_UP | PAD_CTL_SPEED_LOW | \
+ PAD_CTL_DSE_80ohm | 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)),
+};
+
+static iomux_v3_cfg_t const usdhc1_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_GPIO_1__GPIO1_IO01 | MUX_PAD_CTRL(NO_PAD_CTRL)),/* CD */
+};
+
+#ifdef CONFIG_FSL_ESDHC
+#define USDHC1_CD_GPIO IMX_GPIO_NR(1, 1)
+
+struct fsl_esdhc_cfg usdhc_cfg[1] = {
+ {USDHC1_BASE_ADDR, 0, 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 USDHC1_BASE_ADDR:
+ ret = !gpio_get_value(USDHC1_CD_GPIO);
+ 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_ESDHC_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
+
+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>
+
+/*
+ * 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/imx6qdl_icore_mmc_defconfig b/configs/imx6qdl_icore_mmc_defconfig
new file mode 100644
index 0000000..a658f4b
--- /dev/null
+++ b/configs/imx6qdl_icore_mmc_defconfig
@@ -0,0 +1,27 @@
+CONFIG_ARM=y
+CONFIG_ARCH_MX6=y
+CONFIG_TARGET_MX6Q_ICORE=y
+CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/imx-common/spl_sd.cfg,ENV_IS_IN_MMC"
+CONFIG_DEFAULT_FDT_FILE="imx6dl-icore.dtb"
+CONFIG_SYS_PROMPT="icorem6qdl> "
+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_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_IMX_THERMAL=y
diff --git a/include/configs/imx6qdl_icore.h b/include/configs/imx6qdl_icore.h
new file mode 100644
index 0000000..6eb0fcc
--- /dev/null
+++ b/include/configs/imx6qdl_icore.h
@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) 2016 Amarula Solutions B.V.
+ * Copyright (C) 2016 Engicam S.r.l.
+ *
+ * Configuration settings for the Engicam i.CoreM6 QDL Starter Kits.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __IMX6QLD_ICORE_CONFIG_H
+#define __IMX6QLD_ICORE_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
+# ifdef CONFIG_SYS_BOOT_NAND
+# define CONFIG_SPL_NAND_SUPPORT
+# else
+# define CONFIG_SPL_MMC_SUPPORT
+# endif
+
+# define CONFIG_SPL_LIBCOMMON_SUPPORT
+# include "imx6_spl.h"
+#endif
+
+#endif /* __IMX6QLD_ICORE_CONFIG_H */
--
2.7.4
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