i.MX35: add cpuimx35 support and its baseboard

* cpuimx35 integrates i.MX35, RAM, NAND, Ethernet, I2C RTC, USB Host,
USB OTG and I2C touchscreen controller
* mbimxsd provides access to LCD, Audio, LED, Switch button, UART ...

Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 226 insertions, 0 deletions

diff --git a/arch/arm/mach-mx3/mach-cpuimx35.c b/arch/arm/mach-mx3/mach-cpuimx35.c
new file mode 100644
index 0000000..55caa5c
--- /dev/null
+++ b/arch/arm/mach-mx3/mach-cpuimx35.c
@@ -0,0 +1,226 @@
+/*
+ * Copyright (C) 2010 Eric Benard - eric@eukrea.com
+ * Copyright (C) 2009 Sascha Hauer, Pengutronix
+ *
+ * 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 <linux/types.h>
+#include <linux/init.h>
+
+#include <linux/platform_device.h>
+#include <linux/mtd/physmap.h>
+#include <linux/memory.h>
+#include <linux/gpio.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/i2c/tsc2007.h>
+#include <linux/usb/otg.h>
+#include <linux/usb/ulpi.h>
+#include <linux/fsl_devices.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+#include <asm/mach/map.h>
+
+#include <mach/board-eukrea_cpuimx35.h>
+#include <mach/hardware.h>
+#include <mach/common.h>
+#include <mach/imx-uart.h>
+#include <mach/i2c.h>
+#include <mach/iomux-mx35.h>
+#include <mach/mxc_nand.h>
+#include <mach/mxc_ehci.h>
+#include <mach/ulpi.h>
+
+#include "devices.h"
+
+static struct imxuart_platform_data uart_pdata = {
+	.flags = IMXUART_HAVE_RTSCTS,
+};
+
+static struct imxi2c_platform_data eukrea_cpuimx35_i2c_1_data = {
+	.bitrate = 50000,
+};
+
+#define TSC2007_IRQGPIO		(2 * 32 + 2)
+static int ts_get_pendown_state(void)
+{
+	int val = 0;
+	gpio_free(TSC2007_IRQGPIO);
+	gpio_request(TSC2007_IRQGPIO, NULL);
+	gpio_direction_input(TSC2007_IRQGPIO);
+
+	val = gpio_get_value(TSC2007_IRQGPIO);
+
+	gpio_free(TSC2007_IRQGPIO);
+	gpio_request(TSC2007_IRQGPIO, NULL);
+
+	return val ? 0 : 1;
+}
+
+static int ts_init(void)
+{
+	gpio_request(TSC2007_IRQGPIO, NULL);
+	return 0;
+}
+
+static struct tsc2007_platform_data tsc2007_info = {
+	.model			= 2007,
+	.x_plate_ohms		= 180,
+	.get_pendown_state	= ts_get_pendown_state,
+	.init_platform_hw	= ts_init,
+};
+
+static struct i2c_board_info eukrea_cpuimx35_i2c_devices[] = {
+	{
+		I2C_BOARD_INFO("pcf8563", 0x51),
+	}, {
+		I2C_BOARD_INFO("tsc2007", 0x48),
+		.type		= "tsc2007",
+		.platform_data	= &tsc2007_info,
+		.irq		= gpio_to_irq(TSC2007_IRQGPIO),
+	},
+};
+
+static struct platform_device *devices[] __initdata = {
+	&mxc_fec_device,
+	&imx_wdt_device0,
+};
+
+static struct pad_desc eukrea_cpuimx35_pads[] = {
+	/* UART1 */
+	MX35_PAD_CTS1__UART1_CTS,
+	MX35_PAD_RTS1__UART1_RTS,
+	MX35_PAD_TXD1__UART1_TXD_MUX,
+	MX35_PAD_RXD1__UART1_RXD_MUX,
+	/* FEC */
+	MX35_PAD_FEC_TX_CLK__FEC_TX_CLK,
+	MX35_PAD_FEC_RX_CLK__FEC_RX_CLK,
+	MX35_PAD_FEC_RX_DV__FEC_RX_DV,
+	MX35_PAD_FEC_COL__FEC_COL,
+	MX35_PAD_FEC_RDATA0__FEC_RDATA_0,
+	MX35_PAD_FEC_TDATA0__FEC_TDATA_0,
+	MX35_PAD_FEC_TX_EN__FEC_TX_EN,
+	MX35_PAD_FEC_MDC__FEC_MDC,
+	MX35_PAD_FEC_MDIO__FEC_MDIO,
+	MX35_PAD_FEC_TX_ERR__FEC_TX_ERR,
+	MX35_PAD_FEC_RX_ERR__FEC_RX_ERR,
+	MX35_PAD_FEC_CRS__FEC_CRS,
+	MX35_PAD_FEC_RDATA1__FEC_RDATA_1,
+	MX35_PAD_FEC_TDATA1__FEC_TDATA_1,
+	MX35_PAD_FEC_RDATA2__FEC_RDATA_2,
+	MX35_PAD_FEC_TDATA2__FEC_TDATA_2,
+	MX35_PAD_FEC_RDATA3__FEC_RDATA_3,
+	MX35_PAD_FEC_TDATA3__FEC_TDATA_3,
+	/* I2C1 */
+	MX35_PAD_I2C1_CLK__I2C1_SCL,
+	MX35_PAD_I2C1_DAT__I2C1_SDA,
+	/* TSC2007 IRQ */
+	MX35_PAD_ATA_DA2__GPIO3_2,
+};
+
+static struct mxc_nand_platform_data pcm037_nand_board_info = {
+	.width		= 1,
+	.hw_ecc		= 1,
+	.flash_bbt	= 1,
+};
+
+static struct mxc_usbh_platform_data otg_pdata = {
+	.portsc	= MXC_EHCI_MODE_UTMI,
+	.flags	= MXC_EHCI_INTERFACE_DIFF_UNI,
+};
+
+static struct mxc_usbh_platform_data usbh1_pdata = {
+	.portsc	= MXC_EHCI_MODE_SERIAL,
+	.flags	= MXC_EHCI_INTERFACE_SINGLE_UNI | MXC_EHCI_INTERNAL_PHY |
+		  MXC_EHCI_IPPUE_DOWN,
+};
+
+static struct fsl_usb2_platform_data otg_device_pdata = {
+	.operating_mode	= FSL_USB2_DR_DEVICE,
+	.phy_mode	= FSL_USB2_PHY_UTMI,
+};
+
+static int otg_mode_host;
+
+static int __init eukrea_cpuimx35_otg_mode(char *options)
+{
+	if (!strcmp(options, "host"))
+		otg_mode_host = 1;
+	else if (!strcmp(options, "device"))
+		otg_mode_host = 0;
+	else
+		pr_info("otg_mode neither \"host\" nor \"device\". "
+			"Defaulting to device\n");
+	return 0;
+}
+__setup("otg_mode=", eukrea_cpuimx35_otg_mode);
+
+/*
+ * Board specific initialization.
+ */
+static void __init mxc_board_init(void)
+{
+	mxc_iomux_v3_setup_multiple_pads(eukrea_cpuimx35_pads,
+			ARRAY_SIZE(eukrea_cpuimx35_pads));
+
+	platform_add_devices(devices, ARRAY_SIZE(devices));
+
+	mxc_register_device(&mxc_uart_device0, &uart_pdata);
+	mxc_register_device(&mxc_nand_device, &pcm037_nand_board_info);
+
+	i2c_register_board_info(0, eukrea_cpuimx35_i2c_devices,
+			ARRAY_SIZE(eukrea_cpuimx35_i2c_devices));
+	mxc_register_device(&mxc_i2c_device0, &eukrea_cpuimx35_i2c_1_data);
+
+#if defined(CONFIG_USB_ULPI)
+	if (otg_mode_host) {
+		otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
+				USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
+
+		mxc_register_device(&mxc_otg_host, &otg_pdata);
+	}
+	mxc_register_device(&mxc_usbh1, &usbh1_pdata);
+#endif
+	if (!otg_mode_host)
+		mxc_register_device(&mxc_otg_udc_device, &otg_device_pdata);
+
+#ifdef CONFIG_MACH_EUKREA_MBIMXSD_BASEBOARD
+	eukrea_mbimxsd_baseboard_init();
+#endif
+}
+
+static void __init eukrea_cpuimx35_timer_init(void)
+{
+	mx35_clocks_init();
+}
+
+struct sys_timer eukrea_cpuimx35_timer = {
+	.init	= eukrea_cpuimx35_timer_init,
+};
+
+MACHINE_START(EUKREA_CPUIMX35, "Eukrea CPUIMX35")
+	/* Maintainer: Eukrea Electromatique */
+	.phys_io	= MX35_AIPS1_BASE_ADDR,
+	.io_pg_offst	= ((MX35_AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
+	.boot_params    = MX3x_PHYS_OFFSET + 0x100,
+	.map_io         = mx35_map_io,
+	.init_irq       = mx35_init_irq,
+	.init_machine   = mxc_board_init,
+	.timer          = &eukrea_cpuimx35_timer,
+MACHINE_END