i.mx: i.mx6q: add the initial support for i.mx6q ARM2 board

Add the initial support for Freescale i.MX6Q Armadillo2 board
Support: MMC boot from slot 0/1, debug UART(UART4), usdhc.

There is two MMC slots on the boards:
mmc dev 0 -> connect USDHC3 -> the lower slot on the board,
mmc dev 1 -> connect USDHC4 -> the upper slot on the board,

Signed-off-by: Jason Liu <jason.hui@linaro.org>
Cc: Stefano Babic <sbabic@denx.de>
Tested-by: Dirk Behme <dirk.behme@de.bosch.com>

3 files changed, 364 insertions, 0 deletions

diff --git a/board/freescale/mx6qarm2/Makefile b/board/freescale/mx6qarm2/Makefile
new file mode 100644
index 0000000..79bc315
--- /dev/null
+++ b/board/freescale/mx6qarm2/Makefile
@@ -0,0 +1,42 @@
+#
+# Copyright (C) 2007, Guennadi Liakhovetski <lg@denx.de>
+#
+# (C) Copyright 2011 Freescale Semiconductor, Inc.
+#
+# 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	:= mx6qarm2.o
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS)
+	$(call cmd_link_o_target, $(OBJS) $(SOBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/freescale/mx6qarm2/imximage.cfg b/board/freescale/mx6qarm2/imximage.cfg
new file mode 100644
index 0000000..ffac1b4
--- /dev/null
+++ b/board/freescale/mx6qarm2/imximage.cfg
@@ -0,0 +1,167 @@
+# Copyright (C) 2011 Freescale Semiconductor, Inc.
+# Jason Liu <r64343@freescale.com>
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# 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. 51 Franklin Street Fifth Floor Boston,
+# MA 02110-1301 USA
+#
+# 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 0x020e05a8 0x00000030
+DATA 4 0x020e05b0 0x00000030
+DATA 4 0x020e0524 0x00000030
+DATA 4 0x020e051c 0x00000030
+
+DATA 4 0x020e0518 0x00000030
+DATA 4 0x020e050c 0x00000030
+DATA 4 0x020e05b8 0x00000030
+DATA 4 0x020e05c0 0x00000030
+
+DATA 4 0x020e05ac 0x00020030
+DATA 4 0x020e05b4 0x00020030
+DATA 4 0x020e0528 0x00020030
+DATA 4 0x020e0520 0x00020030
+
+DATA 4 0x020e0514 0x00020030
+DATA 4 0x020e0510 0x00020030
+DATA 4 0x020e05bc 0x00020030
+DATA 4 0x020e05c4 0x00020030
+
+DATA 4 0x020e056c 0x00020030
+DATA 4 0x020e0578 0x00020030
+DATA 4 0x020e0588 0x00020030
+DATA 4 0x020e0594 0x00020030
+
+DATA 4 0x020e057c 0x00020030
+DATA 4 0x020e0590 0x00003000
+DATA 4 0x020e0598 0x00003000
+DATA 4 0x020e058c 0x00000000
+
+DATA 4 0x020e059c 0x00003030
+DATA 4 0x020e05a0 0x00003030
+DATA 4 0x020e0784 0x00000030
+DATA 4 0x020e0788 0x00000030
+
+DATA 4 0x020e0794 0x00000030
+DATA 4 0x020e079c 0x00000030
+DATA 4 0x020e07a0 0x00000030
+DATA 4 0x020e07a4 0x00000030
+
+DATA 4 0x020e07a8 0x00000030
+DATA 4 0x020e0748 0x00000030
+DATA 4 0x020e074c 0x00000030
+DATA 4 0x020e0750 0x00020000
+
+DATA 4 0x020e0758 0x00000000
+DATA 4 0x020e0774 0x00020000
+DATA 4 0x020e078c 0x00000030
+DATA 4 0x020e0798 0x000C0000
+
+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 0x021b0018 0x00081740
+
+DATA 4 0x021b001c 0x00008000
+DATA 4 0x021b000c 0x555A7975
+DATA 4 0x021b0010 0xFF538E64
+DATA 4 0x021b0014 0x01FF00DB
+DATA 4 0x021b002c 0x000026D2
+
+DATA 4 0x021b0030 0x005B0E21
+DATA 4 0x021b0008 0x09444040
+DATA 4 0x021b0004 0x00025576
+DATA 4 0x021b0040 0x00000027
+DATA 4 0x021b0000 0xC31A0000
+
+DATA 4 0x021b001c 0x04088032
+DATA 4 0x021b001c 0x0408803A
+DATA 4 0x021b001c 0x00008033
+DATA 4 0x021b001c 0x0000803B
+DATA 4 0x021b001c 0x00428031
+DATA 4 0x021b001c 0x00428039
+DATA 4 0x021b001c 0x09408030
+DATA 4 0x021b001c 0x09408038
+
+DATA 4 0x021b001c 0x04008040
+DATA 4 0x021b001c 0x04008048
+DATA 4 0x021b0800 0xA1380003
+DATA 4 0x021b4800 0xA1380003
+DATA 4 0x021b0020 0x00005800
+DATA 4 0x021b0818 0x00022227
+DATA 4 0x021b4818 0x00022227
+
+DATA 4 0x021b083c 0x434B0350
+DATA 4 0x021b0840 0x034C0359
+DATA 4 0x021b483c 0x434B0350
+DATA 4 0x021b4840 0x03650348
+DATA 4 0x021b0848 0x4436383B
+DATA 4 0x021b4848 0x39393341
+DATA 4 0x021b0850 0x35373933
+DATA 4 0x021b4850 0x48254A36
+
+DATA 4 0x021b080c 0x001F001F
+DATA 4 0x021b0810 0x001F001F
+
+DATA 4 0x021b480c 0x00440044
+DATA 4 0x021b4810 0x00440044
+
+DATA 4 0x021b08b8 0x00000800
+DATA 4 0x021b48b8 0x00000800
+
+DATA 4 0x021b001c 0x00000000
+DATA 4 0x021b0404 0x00011006
+
+DATA 4 0x020e0010 0xF00000FF
+DATA 4 0x020e0018 0x00070007
+DATA 4 0x020e001c 0x00070007
+
+DATA 4 0x020c4068 0x00C03F3F
+DATA 4 0x020c406c 0x0030FC00
+DATA 4 0x020c4070 0x0FFFC000
+DATA 4 0x020c4074 0x3FF00000
+DATA 4 0x020c4078 0x00FFF300
+DATA 4 0x020c407c 0x0F0000C3
+DATA 4 0x020c4080 0x000003FC
diff --git a/board/freescale/mx6qarm2/mx6qarm2.c b/board/freescale/mx6qarm2/mx6qarm2.c
new file mode 100644
index 0000000..89e0e76
--- /dev/null
+++ b/board/freescale/mx6qarm2/mx6qarm2.c
@@ -0,0 +1,155 @@
+/*
+ * Copyright (C) 2010-2011 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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/imx-regs.h>
+#include <asm/arch/mx6x_pins.h>
+#include <asm/arch/iomux-v3.h>
+#include <asm/errno.h>
+#include <asm/gpio.h>
+#include <mmc.h>
+#include <fsl_esdhc.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_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 uart4_pads[] = {
+	MX6Q_PAD_KEY_COL0__UART4_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
+	MX6Q_PAD_KEY_ROW0__UART4_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
+};
+
+iomux_v3_cfg_t usdhc3_pads[] = {
+	MX6Q_PAD_SD3_CLK__USDHC3_CLK   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6Q_PAD_SD3_CMD__USDHC3_CMD   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6Q_PAD_SD3_DAT0__USDHC3_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6Q_PAD_SD3_DAT1__USDHC3_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6Q_PAD_SD3_DAT2__USDHC3_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6Q_PAD_SD3_DAT3__USDHC3_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6Q_PAD_SD3_DAT4__USDHC3_DAT4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6Q_PAD_SD3_DAT5__USDHC3_DAT5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6Q_PAD_SD3_DAT6__USDHC3_DAT6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6Q_PAD_SD3_DAT7__USDHC3_DAT7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6Q_PAD_NANDF_CS0__GPIO_6_11  | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
+};
+
+iomux_v3_cfg_t usdhc4_pads[] = {
+	MX6Q_PAD_SD4_CLK__USDHC4_CLK   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6Q_PAD_SD4_CMD__USDHC4_CMD   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6Q_PAD_SD4_DAT0__USDHC4_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6Q_PAD_SD4_DAT1__USDHC4_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6Q_PAD_SD4_DAT2__USDHC4_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6Q_PAD_SD4_DAT3__USDHC4_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6Q_PAD_SD4_DAT4__USDHC4_DAT4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6Q_PAD_SD4_DAT5__USDHC4_DAT5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6Q_PAD_SD4_DAT6__USDHC4_DAT6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6Q_PAD_SD4_DAT7__USDHC4_DAT7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+};
+
+static void setup_iomux_uart(void)
+{
+	imx_iomux_v3_setup_multiple_pads(uart4_pads, ARRAY_SIZE(uart4_pads));
+}
+
+#ifdef CONFIG_FSL_ESDHC
+struct fsl_esdhc_cfg usdhc_cfg[2] = {
+	{USDHC3_BASE_ADDR, 1},
+	{USDHC4_BASE_ADDR, 1},
+};
+
+int board_mmc_getcd(u8 *cd, struct mmc *mmc)
+{
+	struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
+
+	if (cfg->esdhc_base == USDHC3_BASE_ADDR) {
+		gpio_direction_input(171); /*GPIO6_11*/
+		*cd = gpio_get_value(171);
+	} else /* Don't have the CD GPIO pin on board */
+		*cd = 0;
+
+	return 0;
+}
+
+int board_mmc_init(bd_t *bis)
+{
+	s32 status = 0;
+	u32 index = 0;
+
+	for (index = 0; index < CONFIG_SYS_FSL_USDHC_NUM; ++index) {
+		switch (index) {
+		case 0:
+			imx_iomux_v3_setup_multiple_pads(
+				usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
+			break;
+		case 1:
+			imx_iomux_v3_setup_multiple_pads(
+				usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
+			break;
+		default:
+			printf("Warning: you configured more USDHC controllers"
+				"(%d) then supported by the board (%d)\n",
+				index + 1, CONFIG_SYS_FSL_USDHC_NUM);
+			return status;
+		}
+
+		status |= fsl_esdhc_initialize(bis, &usdhc_cfg[index]);
+	}
+
+	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: MX6Q-Armadillo2\n");
+
+	return 0;
+}