Add support for Congatec Conga-QEVAl board

Add minimal support (only boot from mmc device) for the Congatec
Conga-QEVAl Evaluation Carrier Board with conga-Qmx6q (i.MX6 Quad
processor) module.

Signed-off-by: Leo Sartre <lsartre@adeneo-embedded.com>
Acked-by: Stefano Babic <sbabic@denx.de>
Acked-by: Otavio Salvador <otavio@ossystems.com.br>

6 files changed, 437 insertions, 0 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index e4113d89e5..d3b7e1a543 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -893,6 +893,10 @@ Steve Sakoman <sakoman@gmail.com>
 
 	omap3_overo	ARM ARMV7 (OMAP3xx SoC)
 
+Leo Sartre <lsartre@adeneo-embedded.com>
+
+	cgtqmx6qeval		i.MX6Q
+
 Jens Scharsig <esw@bus-elektronik.de>
 
 	eb_cpux9k2	ARM920T (AT91RM9200 SoC)
diff --git a/board/congatec/cgtqmx6eval/Makefile b/board/congatec/cgtqmx6eval/Makefile
new file mode 100644
index 0000000000..ac16c1fe3f
--- /dev/null
+++ b/board/congatec/cgtqmx6eval/Makefile
@@ -0,0 +1,42 @@
+#
+# Copyright (C) 2007, Guennadi Liakhovetski <lg@denx.de>
+#
+# (C) Copyright 2011 Freescale Semiconductor, Inc.
+# (C) Copyright 2013 Adeneo Embedded <www.adeneo-embedded.com>
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program 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.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+
+LIB    = $(obj)lib$(BOARD).o
+
+COBJS  := cgtqmx6eval.o
+
+SRCS   := $(COBJS:.o=.c)
+OBJS   := $(addprefix $(obj),$(COBJS))
+
+$(LIB):        $(obj).depend $(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/congatec/cgtqmx6eval/README b/board/congatec/cgtqmx6eval/README
new file mode 100644
index 0000000000..bbf0f75a4d
--- /dev/null
+++ b/board/congatec/cgtqmx6eval/README
@@ -0,0 +1,29 @@
+U-Boot for the Congatec Conga-QEVAl Evaluation Carrier board with
+qmx6 quad module.
+
+This file contains information for the port of U-Boot to the Congatec
+Conga-QEVAl Evaluation Carrier board with qmx6 quad module.
+
+1. Boot source, boot from SD card
+---------------------------------
+
+This version of u-boot works only on the SD card. By default, the
+Congatec board can boot only from the SPI-NOR.
+But, with the u-boot version provided with the board you can write boot
+registers to force the board to reboot and boot from the SD slot. If
+"bmode" command is not available from your pre-installed u-boot, these
+instruction will produce the same effect:
+
+conga-QMX6 U-Boot > mw.l 0x20d8040 0x3850
+conga-QMX6 U-Boot > mw.l 0x020d8044 0x10000000
+conga-QMX6 U-Boot > reset
+resetting ...
+
+The the board will reboot and, if you have written your SD correctly
+the board will use u-boot that live into the SD
+
+To copy the resulting u-boot.imx to the SD card:
+
+ dd if=u-boot.imx of=/dev/xxx bs=512 seek=2
+
+Note: Replace xxx with the device representing the SD card in your system.
diff --git a/board/congatec/cgtqmx6eval/cgtqmx6eval.c b/board/congatec/cgtqmx6eval/cgtqmx6eval.c
new file mode 100644
index 0000000000..f70f674b21
--- /dev/null
+++ b/board/congatec/cgtqmx6eval/cgtqmx6eval.c
@@ -0,0 +1,167 @@
+/*
+ * Copyright (C) 2010-2011 Freescale Semiconductor, Inc.
+ * Based on mx6qsabrelite.c file
+ * Copyright (C) 2013, Adeneo Embedded <www.adeneo-embedded.com>
+ * Leo Sartre, <lsartre@adeneo-embedded.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/iomux.h>
+#include <asm/arch/mx6-pins.h>
+#include <asm/gpio.h>
+#include <asm/imx-common/iomux-v3.h>
+#include <asm/imx-common/boot_mode.h>
+#include <mmc.h>
+#include <fsl_esdhc.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)
+
+int dram_init(void)
+{
+	gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
+
+	return 0;
+}
+
+iomux_v3_cfg_t const uart2_pads[] = {
+	MX6_PAD_EIM_D26__UART2_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
+	MX6_PAD_EIM_D27__UART2_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
+};
+
+iomux_v3_cfg_t const usdhc2_pads[] = {
+	MX6_PAD_SD2_CLK__USDHC2_CLK   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD2_CMD__USDHC2_CMD   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD2_DAT0__USDHC2_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD2_DAT1__USDHC2_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD2_DAT2__USDHC2_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD2_DAT3__USDHC2_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_GPIO_4__GPIO_1_4      | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+};
+
+iomux_v3_cfg_t const usdhc4_pads[] = {
+	MX6_PAD_SD4_CLK__USDHC4_CLK   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD4_CMD__USDHC4_CMD   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD4_DAT0__USDHC4_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD4_DAT1__USDHC4_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD4_DAT2__USDHC4_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD4_DAT3__USDHC4_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD4_DAT4__USDHC4_DAT4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD4_DAT5__USDHC4_DAT5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD4_DAT6__USDHC4_DAT6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD4_DAT7__USDHC4_DAT7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_NANDF_D6__GPIO_2_6    | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
+};
+
+static void setup_iomux_uart(void)
+{
+	imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
+}
+
+#ifdef CONFIG_FSL_ESDHC
+struct fsl_esdhc_cfg usdhc_cfg[] = {
+	{USDHC2_BASE_ADDR},
+	{USDHC4_BASE_ADDR},
+};
+
+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 USDHC2_BASE_ADDR:
+		gpio_direction_input(IMX_GPIO_NR(1, 4));
+		ret = !gpio_get_value(IMX_GPIO_NR(1, 4));
+		break;
+	case USDHC4_BASE_ADDR:
+		gpio_direction_input(IMX_GPIO_NR(2, 6));
+		ret = !gpio_get_value(IMX_GPIO_NR(2, 6));
+		break;
+	default:
+		printf("Bad USDHC interface\n");
+	}
+
+	return ret;
+}
+
+int board_mmc_init(bd_t *bis)
+{
+	s32 status = 0;
+
+	usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
+	usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
+
+	imx_iomux_v3_setup_multiple_pads(
+				usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
+	imx_iomux_v3_setup_multiple_pads(
+				usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
+
+	status = fsl_esdhc_initialize(bis, &usdhc_cfg[0]) |
+		     fsl_esdhc_initialize(bis, &usdhc_cfg[1]);
+
+	return status;
+}
+#endif
+
+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;
+
+	return 0;
+}
+
+int checkboard(void)
+{
+	puts("Board: Conga-QEVAL QMX6 Quad\n");
+
+	return 0;
+}
+
+#ifdef CONFIG_CMD_BMODE
+static const struct boot_mode board_boot_modes[] = {
+	/* 4 bit bus width */
+	{"mmc0",	MAKE_CFGVAL(0x50, 0x20, 0x00, 0x00)},
+	{"mmc1",	MAKE_CFGVAL(0x50, 0x38, 0x00, 0x00)},
+	{NULL,		0},
+};
+#endif
+
+int misc_init_r(void)
+{
+#ifdef CONFIG_CMD_BMODE
+	add_board_boot_modes(board_boot_modes);
+#endif
+	return 0;
+}
diff --git a/boards.cfg b/boards.cfg
index 3fdf41ea72..fff4f45c1f 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -256,6 +256,7 @@ mx53loco                     arm         armv7       mx53loco            freesca
 mx53smd                      arm         armv7       mx53smd             freescale      mx5		mx53smd:IMX_CONFIG=board/freescale/mx53smd/imximage.cfg
 ima3-mx53                    arm         armv7       ima3-mx53           esg            mx5		ima3-mx53:IMX_CONFIG=board/esg/ima3-mx53/imximage.cfg
 vision2                      arm         armv7       vision2             ttcontrol      mx5		vision2:IMX_CONFIG=board/ttcontrol/vision2/imximage_hynix.cfg
+cgtqmx6qeval				 arm		 armv7		 cgtqmx6eval		 congatec		mx6		cgtqmx6eval:IMX_CONFIG=board/freescale/imx/ddr/mx6q_4x_mt41j128.cfg,MX6Q
 mx6qarm2                     arm         armv7       mx6qarm2            freescale      mx6		mx6qarm2:IMX_CONFIG=board/freescale/mx6qarm2/imximage.cfg
 mx6qsabreauto                arm         armv7       mx6qsabreauto       freescale      mx6		mx6qsabreauto:IMX_CONFIG=board/freescale/mx6qsabreauto/imximage.cfg
 mx6qsabrelite                arm         armv7       mx6qsabrelite       freescale      mx6		mx6qsabrelite:IMX_CONFIG=board/freescale/imx/ddr/mx6q_4x_mt41j128.cfg
diff --git a/include/configs/cgtqmx6eval.h b/include/configs/cgtqmx6eval.h
new file mode 100644
index 0000000000..13638587f1
--- /dev/null
+++ b/include/configs/cgtqmx6eval.h
@@ -0,0 +1,194 @@
+/*
+ *
+ * Congatec Conga-QEVAl board configuration file.
+ *
+ * Copyright (C) 2010-2011 Freescale Semiconductor, Inc.
+ * Based on Freescale i.MX6Q Sabre Lite board configuration file.
+ * Copyright (C) 2013, Adeneo Embedded <www.adeneo-embedded.com>
+ * Leo Sartre, <lsartre@adeneo-embedded.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __CONFIG_CGTQMX6EVAL_H
+#define __CONFIG_CGTQMX6EVAL_H
+
+#define CONFIG_MX6
+
+#include "mx6_common.h"
+
+#define CONFIG_DISPLAY_CPUINFO
+#define CONFIG_DISPLAY_BOARDINFO
+
+#define CONFIG_MACH_TYPE	4122
+
+#include <asm/arch/imx-regs.h>
+#include <asm/imx-common/gpio.h>
+
+#define CONFIG_CMDLINE_TAG
+#define CONFIG_SETUP_MEMORY_TAGS
+#define CONFIG_INITRD_TAG
+#define CONFIG_REVISION_TAG
+
+/* Size of malloc() pool */
+#define CONFIG_SYS_MALLOC_LEN		(10 * 1024 * 1024)
+
+#define CONFIG_BOARD_EARLY_INIT_F
+#define CONFIG_MISC_INIT_R
+#define CONFIG_MXC_GPIO
+
+#define CONFIG_MXC_UART
+#define CONFIG_MXC_UART_BASE	       UART2_BASE
+
+/* MMC Configs */
+#define CONFIG_FSL_ESDHC
+#define CONFIG_FSL_USDHC
+#define CONFIG_SYS_FSL_ESDHC_ADDR      0
+
+#define CONFIG_MMC
+#define CONFIG_CMD_MMC
+#define CONFIG_GENERIC_MMC
+#define CONFIG_BOUNCE_BUFFER
+#define CONFIG_CMD_EXT2
+#define CONFIG_CMD_FAT
+#define CONFIG_DOS_PARTITION
+
+/* Miscellaneous commands */
+#define CONFIG_CMD_BMODE
+
+/* allow to overwrite serial and ethaddr */
+#define CONFIG_ENV_OVERWRITE
+#define CONFIG_CONS_INDEX	       1
+#define CONFIG_BAUDRATE			       115200
+
+/* Command definition */
+#include <config_cmd_default.h>
+
+#undef CONFIG_CMD_IMLS
+
+#define CONFIG_BOOTDELAY	       3
+
+#define CONFIG_LOADADDR			       0x12000000
+#define CONFIG_SYS_TEXT_BASE	       0x17800000
+
+#define CONFIG_DEFAULT_FDT_FILE "imx6q-congatec.dtb"
+
+#define CONFIG_EXTRA_ENV_SETTINGS \
+	"script=boot.scr\0" \
+	"uimage=uImage\0" \
+	"fdt_file=" CONFIG_DEFAULT_FDT_FILE "\0" \
+	"boot_dir=/boot\0" \
+	"console=ttymxc1\0" \
+	"fdt_high=0xffffffff\0" \
+	"initrd_high=0xffffffff\0" \
+	"fdt_addr=0x11000000\0" \
+	"boot_fdt=try\0" \
+	"mmcdev=1\0" \
+	"mmcpart=1\0" \
+	"mmcroot=/dev/mmcblk0p1 rootwait rw\0" \
+	"mmcargs=setenv bootargs console=${console},${baudrate} " \
+		"root=${mmcroot}\0" \
+	"loadbootscript=" \
+		"ext2load mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script};\0" \
+	"bootscript=echo Running bootscript from mmc ...; " \
+		"source\0" \
+	"loaduimage=ext2load mmc ${mmcdev}:${mmcpart} ${loadaddr} " \
+		"${boot_dir}/${uimage}\0" \
+	"loadfdt=ext2load mmc ${mmcdev}:${mmcpart} ${fdt_addr} " \
+		"${boot_dir}/${fdt_file}\0" \
+	"mmcboot=echo Booting from mmc ...; " \
+		"run mmcargs; " \
+		"if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \
+			"if run loadfdt; then " \
+				"bootm ${loadaddr} - ${fdt_addr}; " \
+			"else " \
+				"if test ${boot_fdt} = try; then " \
+					"bootm; " \
+				"else " \
+					"echo WARN: Cannot load the DT; " \
+				"fi; " \
+			"fi; " \
+		"else " \
+			"bootm; " \
+		"fi;\0"
+
+#define CONFIG_BOOTCOMMAND \
+	   "mmc dev ${mmcdev};" \
+	   "mmc dev ${mmcdev}; if mmc rescan; then " \
+		   "if run loadbootscript; then " \
+			   "run bootscript; " \
+		   "else " \
+			   "if run loaduimage; then " \
+				   "run mmcboot; " \
+			   "else "\
+				   "echo ERR: Fail to boot from mmc; " \
+			   "fi; " \
+		   "fi; " \
+	   "else echo ERR: Fail to boot from mmc; fi"
+
+/* Miscellaneous configurable options */
+#define CONFIG_SYS_LONGHELP
+#define CONFIG_SYS_HUSH_PARSER
+#define CONFIG_SYS_PROMPT	       "CGT-QMX6-Quad U-Boot > "
+#define CONFIG_AUTO_COMPLETE
+#define CONFIG_SYS_CBSIZE	       256
+
+/* Print Buffer Size */
+#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
+#define CONFIG_SYS_MAXARGS	       16
+#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
+
+#define CONFIG_SYS_MEMTEST_START       0x10000000
+#define CONFIG_SYS_MEMTEST_END	       0x10010000
+#define CONFIG_SYS_MEMTEST_SCRATCH     0x10800000
+
+#define CONFIG_SYS_LOAD_ADDR	       CONFIG_LOADADDR
+#define CONFIG_SYS_HZ		       1000
+
+#define CONFIG_CMDLINE_EDITING
+
+/* Physical Memory Map */
+#define CONFIG_NR_DRAM_BANKS	       1
+#define PHYS_SDRAM		       MMDC0_ARB_BASE_ADDR
+#define PHYS_SDRAM_SIZE			       (1u * 1024 * 1024 * 1024)
+
+#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)
+
+/* FLASH and environment organization */
+#define CONFIG_SYS_NO_FLASH
+
+#define CONFIG_ENV_SIZE			(8 * 1024)
+
+#define CONFIG_ENV_IS_IN_MMC
+
+#define CONFIG_ENV_OFFSET		(6 * 64 * 1024)
+#define CONFIG_SYS_MMC_ENV_DEV		0
+
+#define CONFIG_OF_LIBFDT
+#define CONFIG_CMD_BOOTZ
+
+#ifndef CONFIG_SYS_DCACHE_OFF
+#define CONFIG_CMD_CACHE
+#endif
+
+#endif			       /* __CONFIG_CGTQMX6EVAL_H */