[linux-2.6-block.git] / arch / arm / mach-mx3 / mx31moboard-devboard.c

/*
 * Copyright (C) 2009 Valentin Longchamp, EPFL Mobots group
 *
 * 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/gpio.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/types.h>

#include <linux/usb/otg.h>

#include <mach/common.h>
#include <mach/imx-uart.h>
#include <mach/iomux-mx3.h>
#include <mach/hardware.h>
#include <mach/mmc.h>
#include <mach/mxc_ehci.h>
#include <mach/ulpi.h>

#include "devices.h"

static unsigned int devboard_pins[] = {
	/* UART1 */
	MX31_PIN_CTS2__CTS2, MX31_PIN_RTS2__RTS2,
	MX31_PIN_TXD2__TXD2, MX31_PIN_RXD2__RXD2,
	/* SDHC2 */
	MX31_PIN_PC_PWRON__SD2_DATA3, MX31_PIN_PC_VS1__SD2_DATA2,
	MX31_PIN_PC_READY__SD2_DATA1, MX31_PIN_PC_WAIT_B__SD2_DATA0,
	MX31_PIN_PC_CD2_B__SD2_CLK, MX31_PIN_PC_CD1_B__SD2_CMD,
	MX31_PIN_ATA_DIOR__GPIO3_28, MX31_PIN_ATA_DIOW__GPIO3_29,
	/* USB H1 */
	MX31_PIN_CSPI1_MISO__USBH1_RXDP, MX31_PIN_CSPI1_MOSI__USBH1_RXDM,
	MX31_PIN_CSPI1_SS0__USBH1_TXDM, MX31_PIN_CSPI1_SS1__USBH1_TXDP,
	MX31_PIN_CSPI1_SS2__USBH1_RCV, MX31_PIN_CSPI1_SCLK__USBH1_OEB,
	MX31_PIN_CSPI1_SPI_RDY__USBH1_FS, MX31_PIN_SFS6__USBH1_SUSPEND,
	MX31_PIN_NFRE_B__GPIO1_11, MX31_PIN_NFALE__GPIO1_12,
};

static struct imxuart_platform_data uart_pdata = {
	.flags = IMXUART_HAVE_RTSCTS,
};

#define SDHC2_CD IOMUX_TO_GPIO(MX31_PIN_ATA_DIOR)
#define SDHC2_WP IOMUX_TO_GPIO(MX31_PIN_ATA_DIOW)

static int devboard_sdhc2_get_ro(struct device *dev)
{
	return !gpio_get_value(SDHC2_WP);
}

static int devboard_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
		void *data)
{
	int ret;

	ret = gpio_request(SDHC2_CD, "sdhc-detect");
	if (ret)
		return ret;

	gpio_direction_input(SDHC2_CD);

	ret = gpio_request(SDHC2_WP, "sdhc-wp");
	if (ret)
		goto err_gpio_free;
	gpio_direction_input(SDHC2_WP);

	ret = request_irq(gpio_to_irq(SDHC2_CD), detect_irq,
		IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
		"sdhc2-card-detect", data);
	if (ret)
		goto err_gpio_free_2;

	return 0;

err_gpio_free_2:
	gpio_free(SDHC2_WP);
err_gpio_free:
	gpio_free(SDHC2_CD);

	return ret;
}

static void devboard_sdhc2_exit(struct device *dev, void *data)
{
	free_irq(gpio_to_irq(SDHC2_CD), data);
	gpio_free(SDHC2_WP);
	gpio_free(SDHC2_CD);
}

static struct imxmmc_platform_data sdhc2_pdata = {
	.get_ro	= devboard_sdhc2_get_ro,
	.init	= devboard_sdhc2_init,
	.exit	= devboard_sdhc2_exit,
};

#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
			PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)

static int devboard_usbh1_hw_init(struct platform_device *pdev)
{
	mxc_iomux_set_gpr(MUX_PGP_USB_SUSPEND, true);

	mxc_iomux_set_pad(MX31_PIN_CSPI1_MISO, USB_PAD_CFG);
	mxc_iomux_set_pad(MX31_PIN_CSPI1_MOSI, USB_PAD_CFG);
	mxc_iomux_set_pad(MX31_PIN_CSPI1_SS0, USB_PAD_CFG);
	mxc_iomux_set_pad(MX31_PIN_CSPI1_SS1, USB_PAD_CFG);
	mxc_iomux_set_pad(MX31_PIN_CSPI1_SS2, USB_PAD_CFG);
	mxc_iomux_set_pad(MX31_PIN_CSPI1_SCLK, USB_PAD_CFG);
	mxc_iomux_set_pad(MX31_PIN_CSPI1_SPI_RDY, USB_PAD_CFG);
	mxc_iomux_set_pad(MX31_PIN_SFS6, USB_PAD_CFG);

	return 0;
}

#define USBH1_VBUSEN_B	IOMUX_TO_GPIO(MX31_PIN_NFRE_B)
#define USBH1_MODE	IOMUX_TO_GPIO(MX31_PIN_NFALE)

static int devboard_isp1105_init(struct otg_transceiver *otg)
{
	int ret = gpio_request(USBH1_MODE, "usbh1-mode");
	if (ret)
		return ret;
	/* single ended */
	gpio_direction_output(USBH1_MODE, 0);

	ret = gpio_request(USBH1_VBUSEN_B, "usbh1-vbusen");
	if (ret) {
		gpio_free(USBH1_MODE);
		return ret;
	}
	gpio_direction_output(USBH1_VBUSEN_B, 1);

	return 0;
}


static int devboard_isp1105_set_vbus(struct otg_transceiver *otg, bool on)
{
	if (on)
		gpio_set_value(USBH1_VBUSEN_B, 0);
	else
		gpio_set_value(USBH1_VBUSEN_B, 1);

	return 0;
}

static struct mxc_usbh_platform_data usbh1_pdata = {
	.init	= devboard_usbh1_hw_init,
	.portsc	= MXC_EHCI_MODE_UTMI | MXC_EHCI_SERIAL,
	.flags	= MXC_EHCI_POWER_PINS_ENABLED | MXC_EHCI_INTERFACE_SINGLE_UNI,
};

static int __init devboard_usbh1_init(void)
{
	struct otg_transceiver *otg;

	otg = kzalloc(sizeof(*otg), GFP_KERNEL);
	if (!otg)
		return -ENOMEM;

	otg->label	= "ISP1105";
	otg->init	= devboard_isp1105_init;
	otg->set_vbus	= devboard_isp1105_set_vbus;

	usbh1_pdata.otg = otg;

	return mxc_register_device(&mx31_usbh1, &usbh1_pdata);
}

/*
 * system init for baseboard usage. Will be called by mx31moboard init.
 */
void __init mx31moboard_devboard_init(void)
{
	printk(KERN_INFO "Initializing mx31devboard peripherals\n");

	mxc_iomux_setup_multiple_pins(devboard_pins, ARRAY_SIZE(devboard_pins),
		"devboard");

	mxc_register_device(&mxc_uart_device1, &uart_pdata);

	mxc_register_device(&mxcsdhc_device1, &sdhc2_pdata);

	devboard_usbh1_init();
}
Commit	Line	Data
e00f0b4a VL	1	/*
	2	* Copyright (C) 2009 Valentin Longchamp, EPFL Mobots group
	3	*
	4	* This program is free software; you can redistribute it and/or modify
	5	* it under the terms of the GNU General Public License as published by
	6	* the Free Software Foundation; either version 2 of the License, or
	7	* (at your option) any later version.
	8	*
	9	* This program is distributed in the hope that it will be useful,
	10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	* GNU General Public License for more details.
	13	*
	14	* You should have received a copy of the GNU General Public License
	15	* along with this program; if not, write to the Free Software
	16	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	17	*/
	18
45b131a7	19	#include <linux/gpio.h>
e00f0b4a	20	#include <linux/init.h>
45b131a7	21	#include <linux/interrupt.h>
e00f0b4a	22	#include <linux/platform_device.h>
220bbcea	23	#include <linux/types.h>
e00f0b4a	24
d67d1075 VL	25	#include <linux/usb/otg.h>
d67d1075 VL	26
e00f0b4a VL	27	#include <mach/common.h>
	28	#include <mach/imx-uart.h>
	29	#include <mach/iomux-mx3.h>
220bbcea	30	#include <mach/hardware.h>
45b131a7	31	#include <mach/mmc.h>
d67d1075 VL	32	#include <mach/mxc_ehci.h>
d67d1075 VL	33	#include <mach/ulpi.h>
e00f0b4a VL	34
	35	#include "devices.h"
	36
220bbcea VL	37	static unsigned int devboard_pins[] = {
220bbcea VL	38	/* UART1 */
e00f0b4a VL	39	MX31_PIN_CTS2__CTS2, MX31_PIN_RTS2__RTS2,
e00f0b4a VL	40	MX31_PIN_TXD2__TXD2, MX31_PIN_RXD2__RXD2,
56c7a45b VL	41	/* SDHC2 */
	42	MX31_PIN_PC_PWRON__SD2_DATA3, MX31_PIN_PC_VS1__SD2_DATA2,
	43	MX31_PIN_PC_READY__SD2_DATA1, MX31_PIN_PC_WAIT_B__SD2_DATA0,
	44	MX31_PIN_PC_CD2_B__SD2_CLK, MX31_PIN_PC_CD1_B__SD2_CMD,
	45	MX31_PIN_ATA_DIOR__GPIO3_28, MX31_PIN_ATA_DIOW__GPIO3_29,
d67d1075 VL	46	/* USB H1 */
	47	MX31_PIN_CSPI1_MISO__USBH1_RXDP, MX31_PIN_CSPI1_MOSI__USBH1_RXDM,
	48	MX31_PIN_CSPI1_SS0__USBH1_TXDM, MX31_PIN_CSPI1_SS1__USBH1_TXDP,
	49	MX31_PIN_CSPI1_SS2__USBH1_RCV, MX31_PIN_CSPI1_SCLK__USBH1_OEB,
	50	MX31_PIN_CSPI1_SPI_RDY__USBH1_FS, MX31_PIN_SFS6__USBH1_SUSPEND,
	51	MX31_PIN_NFRE_B__GPIO1_11, MX31_PIN_NFALE__GPIO1_12,
e00f0b4a VL	52	};
e00f0b4a VL	53
220bbcea VL	54	static struct imxuart_platform_data uart_pdata = {
	55	.flags = IMXUART_HAVE_RTSCTS,
	56	};
	57
45b131a7 VL	58	#define SDHC2_CD IOMUX_TO_GPIO(MX31_PIN_ATA_DIOR)
	59	#define SDHC2_WP IOMUX_TO_GPIO(MX31_PIN_ATA_DIOW)
	60
	61	static int devboard_sdhc2_get_ro(struct device *dev)
	62	{
563abb4b	63	return !gpio_get_value(SDHC2_WP);
45b131a7 VL	64	}
	65
	66	static int devboard_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
	67	void *data)
	68	{
4f163eb8 SH	69	int ret;
	70
	71	ret = gpio_request(SDHC2_CD, "sdhc-detect");
	72	if (ret)
	73	return ret;
	74
	75	gpio_direction_input(SDHC2_CD);
	76
	77	ret = gpio_request(SDHC2_WP, "sdhc-wp");
	78	if (ret)
	79	goto err_gpio_free;
	80	gpio_direction_input(SDHC2_WP);
	81
	82	ret = request_irq(gpio_to_irq(SDHC2_CD), detect_irq,
45b131a7 VL	83	IRQF_TRIGGER_RISING \| IRQF_TRIGGER_FALLING,
45b131a7 VL	84	"sdhc2-card-detect", data);
4f163eb8 SH	85	if (ret)
	86	goto err_gpio_free_2;
	87
	88	return 0;
	89
	90	err_gpio_free_2:
	91	gpio_free(SDHC2_WP);
	92	err_gpio_free:
	93	gpio_free(SDHC2_CD);
	94
	95	return ret;
45b131a7 VL	96	}
	97
	98	static void devboard_sdhc2_exit(struct device dev, void data)
	99	{
	100	free_irq(gpio_to_irq(SDHC2_CD), data);
4f163eb8 SH	101	gpio_free(SDHC2_WP);
4f163eb8 SH	102	gpio_free(SDHC2_CD);
45b131a7 VL	103	}
	104
	105	static struct imxmmc_platform_data sdhc2_pdata = {
	106	.get_ro = devboard_sdhc2_get_ro,
	107	.init = devboard_sdhc2_init,
	108	.exit = devboard_sdhc2_exit,
	109	};
	110
d67d1075 VL	111	#define USB_PAD_CFG (PAD_CTL_DRV_MAX \| PAD_CTL_SRE_FAST \| PAD_CTL_HYS_CMOS \| \
	112	PAD_CTL_ODE_CMOS \| PAD_CTL_100K_PU)
	113
	114	static int devboard_usbh1_hw_init(struct platform_device *pdev)
	115	{
	116	mxc_iomux_set_gpr(MUX_PGP_USB_SUSPEND, true);
	117
	118	mxc_iomux_set_pad(MX31_PIN_CSPI1_MISO, USB_PAD_CFG);
	119	mxc_iomux_set_pad(MX31_PIN_CSPI1_MOSI, USB_PAD_CFG);
	120	mxc_iomux_set_pad(MX31_PIN_CSPI1_SS0, USB_PAD_CFG);
	121	mxc_iomux_set_pad(MX31_PIN_CSPI1_SS1, USB_PAD_CFG);
	122	mxc_iomux_set_pad(MX31_PIN_CSPI1_SS2, USB_PAD_CFG);
	123	mxc_iomux_set_pad(MX31_PIN_CSPI1_SCLK, USB_PAD_CFG);
	124	mxc_iomux_set_pad(MX31_PIN_CSPI1_SPI_RDY, USB_PAD_CFG);
	125	mxc_iomux_set_pad(MX31_PIN_SFS6, USB_PAD_CFG);
	126
	127	return 0;
	128	}
	129
	130	#define USBH1_VBUSEN_B IOMUX_TO_GPIO(MX31_PIN_NFRE_B)
	131	#define USBH1_MODE IOMUX_TO_GPIO(MX31_PIN_NFALE)
	132
	133	static int devboard_isp1105_init(struct otg_transceiver *otg)
	134	{
	135	int ret = gpio_request(USBH1_MODE, "usbh1-mode");
	136	if (ret)
	137	return ret;
	138	/* single ended */
	139	gpio_direction_output(USBH1_MODE, 0);
	140
	141	ret = gpio_request(USBH1_VBUSEN_B, "usbh1-vbusen");
	142	if (ret) {
	143	gpio_free(USBH1_MODE);
	144	return ret;
	145	}
	146	gpio_direction_output(USBH1_VBUSEN_B, 1);
	147
	148	return 0;
	149	}
	150
	151
	152	static int devboard_isp1105_set_vbus(struct otg_transceiver *otg, bool on)
	153	{
	154	if (on)
	155	gpio_set_value(USBH1_VBUSEN_B, 0);
	156	else
	157	gpio_set_value(USBH1_VBUSEN_B, 1);
	158
	159	return 0;
	160	}
	161
	162	static struct mxc_usbh_platform_data usbh1_pdata = {
	163	.init = devboard_usbh1_hw_init,
	164	.portsc = MXC_EHCI_MODE_UTMI \| MXC_EHCI_SERIAL,
	165	.flags = MXC_EHCI_POWER_PINS_ENABLED \| MXC_EHCI_INTERFACE_SINGLE_UNI,
	166	};
	167
	168	static int __init devboard_usbh1_init(void)
	169	{
	170	struct otg_transceiver *otg;
	171
	172	otg = kzalloc(sizeof(*otg), GFP_KERNEL);
	173	if (!otg)
	174	return -ENOMEM;
175
176	otg->label = "ISP1105";
177	otg->init = devboard_isp1105_init;
178	otg->set_vbus = devboard_isp1105_set_vbus;
179
180	usbh1_pdata.otg = otg;
181
182	return mxc_register_device(&mx31_usbh1, &usbh1_pdata);
183	}
184
e00f0b4a VL	185	/*
	186	* system init for baseboard usage. Will be called by mx31moboard init.
	187	*/
	188	void __init mx31moboard_devboard_init(void)
	189	{
	190	printk(KERN_INFO "Initializing mx31devboard peripherals\n");
220bbcea VL	191
	192	mxc_iomux_setup_multiple_pins(devboard_pins, ARRAY_SIZE(devboard_pins),
	193	"devboard");
	194
e00f0b4a	195	mxc_register_device(&mxc_uart_device1, &uart_pdata);
45b131a7 VL	196
45b131a7 VL	197	mxc_register_device(&mxcsdhc_device1, &sdhc2_pdata);
d67d1075 VL	198
d67d1075 VL	199	devboard_usbh1_init();
e00f0b4a	200	}