[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,
	/* SEL */
	MX31_PIN_DTR_DCE1__GPIO2_8, MX31_PIN_DSR_DCE1__GPIO2_9,
	MX31_PIN_RI_DCE1__GPIO2_10, MX31_PIN_DCD_DCE1__GPIO2_11,
};

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 SEL0 IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1)
#define SEL1 IOMUX_TO_GPIO(MX31_PIN_DSR_DCE1)
#define SEL2 IOMUX_TO_GPIO(MX31_PIN_RI_DCE1)
#define SEL3 IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1)

static void devboard_init_sel_gpios(void)
{
	if (!gpio_request(SEL0, "sel0")) {
		gpio_direction_input(SEL0);
		gpio_export(SEL0, true);
	}

	if (!gpio_request(SEL1, "sel1")) {
		gpio_direction_input(SEL1);
		gpio_export(SEL1, true);
	}

	if (!gpio_request(SEL2, "sel2")) {
		gpio_direction_input(SEL2);
		gpio_export(SEL2, true);
	}

	if (!gpio_request(SEL3, "sel3")) {
		gpio_direction_input(SEL3);
		gpio_export(SEL3, true);
	}
}
#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(&mxc_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_init_sel_gpios();

	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,
e335c75c VL	52	/* SEL */
	53	MX31_PIN_DTR_DCE1__GPIO2_8, MX31_PIN_DSR_DCE1__GPIO2_9,
	54	MX31_PIN_RI_DCE1__GPIO2_10, MX31_PIN_DCD_DCE1__GPIO2_11,
e00f0b4a VL	55	};
e00f0b4a VL	56
220bbcea VL	57	static struct imxuart_platform_data uart_pdata = {
	58	.flags = IMXUART_HAVE_RTSCTS,
	59	};
	60
45b131a7 VL	61	#define SDHC2_CD IOMUX_TO_GPIO(MX31_PIN_ATA_DIOR)
	62	#define SDHC2_WP IOMUX_TO_GPIO(MX31_PIN_ATA_DIOW)
	63
	64	static int devboard_sdhc2_get_ro(struct device *dev)
	65	{
563abb4b	66	return !gpio_get_value(SDHC2_WP);
45b131a7 VL	67	}
	68
	69	static int devboard_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
	70	void *data)
	71	{
4f163eb8 SH	72	int ret;
	73
	74	ret = gpio_request(SDHC2_CD, "sdhc-detect");
	75	if (ret)
	76	return ret;
	77
	78	gpio_direction_input(SDHC2_CD);
	79
	80	ret = gpio_request(SDHC2_WP, "sdhc-wp");
	81	if (ret)
	82	goto err_gpio_free;
	83	gpio_direction_input(SDHC2_WP);
	84
	85	ret = request_irq(gpio_to_irq(SDHC2_CD), detect_irq,
45b131a7 VL	86	IRQF_TRIGGER_RISING \| IRQF_TRIGGER_FALLING,
45b131a7 VL	87	"sdhc2-card-detect", data);
4f163eb8 SH	88	if (ret)
	89	goto err_gpio_free_2;
	90
	91	return 0;
	92
	93	err_gpio_free_2:
	94	gpio_free(SDHC2_WP);
	95	err_gpio_free:
	96	gpio_free(SDHC2_CD);
	97
	98	return ret;
45b131a7 VL	99	}
	100
	101	static void devboard_sdhc2_exit(struct device dev, void data)
	102	{
	103	free_irq(gpio_to_irq(SDHC2_CD), data);
4f163eb8 SH	104	gpio_free(SDHC2_WP);
4f163eb8 SH	105	gpio_free(SDHC2_CD);
45b131a7 VL	106	}
	107
	108	static struct imxmmc_platform_data sdhc2_pdata = {
	109	.get_ro = devboard_sdhc2_get_ro,
	110	.init = devboard_sdhc2_init,
	111	.exit = devboard_sdhc2_exit,
	112	};
	113
e335c75c VL	114	#define SEL0 IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1)
	115	#define SEL1 IOMUX_TO_GPIO(MX31_PIN_DSR_DCE1)
	116	#define SEL2 IOMUX_TO_GPIO(MX31_PIN_RI_DCE1)
	117	#define SEL3 IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1)
	118
	119	static void devboard_init_sel_gpios(void)
	120	{
	121	if (!gpio_request(SEL0, "sel0")) {
	122	gpio_direction_input(SEL0);
	123	gpio_export(SEL0, true);
	124	}
	125
	126	if (!gpio_request(SEL1, "sel1")) {
	127	gpio_direction_input(SEL1);
	128	gpio_export(SEL1, true);
	129	}
	130
	131	if (!gpio_request(SEL2, "sel2")) {
	132	gpio_direction_input(SEL2);
	133	gpio_export(SEL2, true);
	134	}
	135
	136	if (!gpio_request(SEL3, "sel3")) {
	137	gpio_direction_input(SEL3);
	138	gpio_export(SEL3, true);
	139	}
	140	}
d67d1075 VL	141	#define USB_PAD_CFG (PAD_CTL_DRV_MAX \| PAD_CTL_SRE_FAST \| PAD_CTL_HYS_CMOS \| \
	142	PAD_CTL_ODE_CMOS \| PAD_CTL_100K_PU)
	143
	144	static int devboard_usbh1_hw_init(struct platform_device *pdev)
	145	{
	146	mxc_iomux_set_gpr(MUX_PGP_USB_SUSPEND, true);
	147
	148	mxc_iomux_set_pad(MX31_PIN_CSPI1_MISO, USB_PAD_CFG);
	149	mxc_iomux_set_pad(MX31_PIN_CSPI1_MOSI, USB_PAD_CFG);
	150	mxc_iomux_set_pad(MX31_PIN_CSPI1_SS0, USB_PAD_CFG);
	151	mxc_iomux_set_pad(MX31_PIN_CSPI1_SS1, USB_PAD_CFG);
	152	mxc_iomux_set_pad(MX31_PIN_CSPI1_SS2, USB_PAD_CFG);
	153	mxc_iomux_set_pad(MX31_PIN_CSPI1_SCLK, USB_PAD_CFG);
	154	mxc_iomux_set_pad(MX31_PIN_CSPI1_SPI_RDY, USB_PAD_CFG);
	155	mxc_iomux_set_pad(MX31_PIN_SFS6, USB_PAD_CFG);
	156
	157	return 0;
	158	}
	159
	160	#define USBH1_VBUSEN_B IOMUX_TO_GPIO(MX31_PIN_NFRE_B)
	161	#define USBH1_MODE IOMUX_TO_GPIO(MX31_PIN_NFALE)
	162
	163	static int devboard_isp1105_init(struct otg_transceiver *otg)
	164	{
	165	int ret = gpio_request(USBH1_MODE, "usbh1-mode");
	166	if (ret)
	167	return ret;
	168	/* single ended */
	169	gpio_direction_output(USBH1_MODE, 0);
	170
	171	ret = gpio_request(USBH1_VBUSEN_B, "usbh1-vbusen");
	172	if (ret) {
	173	gpio_free(USBH1_MODE);
	174	return ret;
	175	}
	176	gpio_direction_output(USBH1_VBUSEN_B, 1);
	177
	178	return 0;
	179	}
	180
	181
	182	static int devboard_isp1105_set_vbus(struct otg_transceiver *otg, bool on)
	183	{
	184	if (on)
	185	gpio_set_value(USBH1_VBUSEN_B, 0);
	186	else
	187	gpio_set_value(USBH1_VBUSEN_B, 1);
	188
	189	return 0;
	190	}
	191
	192	static struct mxc_usbh_platform_data usbh1_pdata = {
	193	.init = devboard_usbh1_hw_init,
	194	.portsc = MXC_EHCI_MODE_UTMI \| MXC_EHCI_SERIAL,
	195	.flags = MXC_EHCI_POWER_PINS_ENABLED \| MXC_EHCI_INTERFACE_SINGLE_UNI,
	196	};
	197
	198	static int __init devboard_usbh1_init(void)
	199	{
	200	struct otg_transceiver *otg;
	201
	202	otg = kzalloc(sizeof(*otg), GFP_KERNEL);
	203	if (!otg)
	204	return -ENOMEM;
205
206	otg->label = "ISP1105";
207	otg->init = devboard_isp1105_init;
208	otg->set_vbus = devboard_isp1105_set_vbus;
209
210	usbh1_pdata.otg = otg;
211
4c21186b	212	return mxc_register_device(&mxc_usbh1, &usbh1_pdata);
d67d1075 VL	213	}
d67d1075 VL	214
e00f0b4a VL	215	/*
	216	* system init for baseboard usage. Will be called by mx31moboard init.
	217	*/
	218	void __init mx31moboard_devboard_init(void)
	219	{
	220	printk(KERN_INFO "Initializing mx31devboard peripherals\n");
220bbcea VL	221
	222	mxc_iomux_setup_multiple_pins(devboard_pins, ARRAY_SIZE(devboard_pins),
	223	"devboard");
	224
e00f0b4a	225	mxc_register_device(&mxc_uart_device1, &uart_pdata);
45b131a7 VL	226
45b131a7 VL	227	mxc_register_device(&mxcsdhc_device1, &sdhc2_pdata);
d67d1075	228
e335c75c VL	229	devboard_init_sel_gpios();
e335c75c VL	230
d67d1075	231	devboard_usbh1_init();
e00f0b4a	232	}