[thirdparty/kernel/stable.git] / arch / arm / mach-imx / mx31moboard-devboard.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Copyright (C) 2009 Valentin Longchamp, EPFL Mobots group
 */

#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/types.h>

#include <linux/usb/otg.h>

#include "board-mx31moboard.h"
#include "common.h"
#include "devices-imx31.h"
#include "ehci.h"
#include "hardware.h"
#include "iomux-mx3.h"
#include "ulpi.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 const struct imxuart_platform_data uart_pdata __initconst = {
	.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 const struct imxmmc_platform_data sdhc2_pdata __initconst = {
	.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);

	mdelay(10);

	return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED |
			MXC_EHCI_INTERFACE_SINGLE_UNI);
}

#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 usb_phy *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 usb_otg *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 __initdata = {
	.init	= devboard_usbh1_hw_init,
	.portsc	= MXC_EHCI_MODE_UTMI | MXC_EHCI_SERIAL,
};

static int __init devboard_usbh1_init(void)
{
	struct usb_phy *phy;
	struct platform_device *pdev;

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

	phy->otg = kzalloc(sizeof(struct usb_otg), GFP_KERNEL);
	if (!phy->otg) {
		kfree(phy);
		return -ENOMEM;
	}

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

	usbh1_pdata.otg = phy;

	pdev = imx31_add_mxc_ehci_hs(1, &usbh1_pdata);

	return PTR_ERR_OR_ZERO(pdev);
}


static const struct fsl_usb2_platform_data usb_pdata __initconst = {
	.operating_mode	= FSL_USB2_DR_DEVICE,
	.phy_mode	= FSL_USB2_PHY_ULPI,
};

/*
 * 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");

	imx31_add_imx_uart1(&uart_pdata);

	imx31_add_mxc_mmc(1, &sdhc2_pdata);

	devboard_init_sel_gpios();

	imx31_add_fsl_usb2_udc(&usb_pdata);

	devboard_usbh1_init();
}
Commit	Line	Data
c942fddf	1	// SPDX-License-Identifier: GPL-2.0-or-later
e00f0b4a VL	2	/*
e00f0b4a VL	3	* Copyright (C) 2009 Valentin Longchamp, EPFL Mobots group
e00f0b4a VL	4	*/
e00f0b4a VL	5
45b131a7	6	#include <linux/gpio.h>
e00f0b4a	7	#include <linux/init.h>
45b131a7	8	#include <linux/interrupt.h>
4bd597b6	9	#include <linux/delay.h>
e00f0b4a	10	#include <linux/platform_device.h>
5a0e3ad6	11	#include <linux/slab.h>
220bbcea	12	#include <linux/types.h>
e00f0b4a	13
d67d1075 VL	14	#include <linux/usb/otg.h>
d67d1075 VL	15
fa5f66c9	16	#include "board-mx31moboard.h"
e3372474	17	#include "common.h"
16cf5c41	18	#include "devices-imx31.h"
641dfe8b	19	#include "ehci.h"
50f2de61	20	#include "hardware.h"
267dd34c	21	#include "iomux-mx3.h"
39ef6340	22	#include "ulpi.h"
e00f0b4a	23
220bbcea VL	24	static unsigned int devboard_pins[] = {
220bbcea VL	25	/* UART1 */
e00f0b4a VL	26	MX31_PIN_CTS2__CTS2, MX31_PIN_RTS2__RTS2,
e00f0b4a VL	27	MX31_PIN_TXD2__TXD2, MX31_PIN_RXD2__RXD2,
56c7a45b VL	28	/* SDHC2 */
	29	MX31_PIN_PC_PWRON__SD2_DATA3, MX31_PIN_PC_VS1__SD2_DATA2,
	30	MX31_PIN_PC_READY__SD2_DATA1, MX31_PIN_PC_WAIT_B__SD2_DATA0,
	31	MX31_PIN_PC_CD2_B__SD2_CLK, MX31_PIN_PC_CD1_B__SD2_CMD,
	32	MX31_PIN_ATA_DIOR__GPIO3_28, MX31_PIN_ATA_DIOW__GPIO3_29,
d67d1075 VL	33	/* USB H1 */
	34	MX31_PIN_CSPI1_MISO__USBH1_RXDP, MX31_PIN_CSPI1_MOSI__USBH1_RXDM,
	35	MX31_PIN_CSPI1_SS0__USBH1_TXDM, MX31_PIN_CSPI1_SS1__USBH1_TXDP,
	36	MX31_PIN_CSPI1_SS2__USBH1_RCV, MX31_PIN_CSPI1_SCLK__USBH1_OEB,
	37	MX31_PIN_CSPI1_SPI_RDY__USBH1_FS, MX31_PIN_SFS6__USBH1_SUSPEND,
	38	MX31_PIN_NFRE_B__GPIO1_11, MX31_PIN_NFALE__GPIO1_12,
e335c75c VL	39	/* SEL */
	40	MX31_PIN_DTR_DCE1__GPIO2_8, MX31_PIN_DSR_DCE1__GPIO2_9,
	41	MX31_PIN_RI_DCE1__GPIO2_10, MX31_PIN_DCD_DCE1__GPIO2_11,
e00f0b4a VL	42	};
e00f0b4a VL	43
16cf5c41	44	static const struct imxuart_platform_data uart_pdata __initconst = {
220bbcea VL	45	.flags = IMXUART_HAVE_RTSCTS,
	46	};
	47
45b131a7 VL	48	#define SDHC2_CD IOMUX_TO_GPIO(MX31_PIN_ATA_DIOR)
	49	#define SDHC2_WP IOMUX_TO_GPIO(MX31_PIN_ATA_DIOW)
	50
	51	static int devboard_sdhc2_get_ro(struct device *dev)
	52	{
563abb4b	53	return !gpio_get_value(SDHC2_WP);
45b131a7 VL	54	}
	55
	56	static int devboard_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
	57	void *data)
	58	{
4f163eb8 SH	59	int ret;
	60
	61	ret = gpio_request(SDHC2_CD, "sdhc-detect");
	62	if (ret)
	63	return ret;
	64
	65	gpio_direction_input(SDHC2_CD);
	66
	67	ret = gpio_request(SDHC2_WP, "sdhc-wp");
	68	if (ret)
	69	goto err_gpio_free;
	70	gpio_direction_input(SDHC2_WP);
	71
	72	ret = request_irq(gpio_to_irq(SDHC2_CD), detect_irq,
45b131a7 VL	73	IRQF_TRIGGER_RISING \| IRQF_TRIGGER_FALLING,
45b131a7 VL	74	"sdhc2-card-detect", data);
4f163eb8 SH	75	if (ret)
	76	goto err_gpio_free_2;
	77
	78	return 0;
	79
	80	err_gpio_free_2:
	81	gpio_free(SDHC2_WP);
	82	err_gpio_free:
	83	gpio_free(SDHC2_CD);
	84
	85	return ret;
45b131a7 VL	86	}
	87
	88	static void devboard_sdhc2_exit(struct device dev, void data)
	89	{
	90	free_irq(gpio_to_irq(SDHC2_CD), data);
4f163eb8 SH	91	gpio_free(SDHC2_WP);
4f163eb8 SH	92	gpio_free(SDHC2_CD);
45b131a7 VL	93	}
45b131a7 VL	94
6a697e3d	95	static const struct imxmmc_platform_data sdhc2_pdata __initconst = {
45b131a7 VL	96	.get_ro = devboard_sdhc2_get_ro,
	97	.init = devboard_sdhc2_init,
	98	.exit = devboard_sdhc2_exit,
	99	};
	100
e335c75c VL	101	#define SEL0 IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1)
	102	#define SEL1 IOMUX_TO_GPIO(MX31_PIN_DSR_DCE1)
	103	#define SEL2 IOMUX_TO_GPIO(MX31_PIN_RI_DCE1)
	104	#define SEL3 IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1)
	105
	106	static void devboard_init_sel_gpios(void)
	107	{
	108	if (!gpio_request(SEL0, "sel0")) {
	109	gpio_direction_input(SEL0);
	110	gpio_export(SEL0, true);
	111	}
	112
	113	if (!gpio_request(SEL1, "sel1")) {
	114	gpio_direction_input(SEL1);
	115	gpio_export(SEL1, true);
	116	}
	117
	118	if (!gpio_request(SEL2, "sel2")) {
	119	gpio_direction_input(SEL2);
	120	gpio_export(SEL2, true);
	121	}
	122
	123	if (!gpio_request(SEL3, "sel3")) {
	124	gpio_direction_input(SEL3);
	125	gpio_export(SEL3, true);
	126	}
	127	}
d67d1075 VL	128	#define USB_PAD_CFG (PAD_CTL_DRV_MAX \| PAD_CTL_SRE_FAST \| PAD_CTL_HYS_CMOS \| \
	129	PAD_CTL_ODE_CMOS \| PAD_CTL_100K_PU)
	130
	131	static int devboard_usbh1_hw_init(struct platform_device *pdev)
	132	{
	133	mxc_iomux_set_gpr(MUX_PGP_USB_SUSPEND, true);
	134
	135	mxc_iomux_set_pad(MX31_PIN_CSPI1_MISO, USB_PAD_CFG);
	136	mxc_iomux_set_pad(MX31_PIN_CSPI1_MOSI, USB_PAD_CFG);
	137	mxc_iomux_set_pad(MX31_PIN_CSPI1_SS0, USB_PAD_CFG);
	138	mxc_iomux_set_pad(MX31_PIN_CSPI1_SS1, USB_PAD_CFG);
	139	mxc_iomux_set_pad(MX31_PIN_CSPI1_SS2, USB_PAD_CFG);
	140	mxc_iomux_set_pad(MX31_PIN_CSPI1_SCLK, USB_PAD_CFG);
	141	mxc_iomux_set_pad(MX31_PIN_CSPI1_SPI_RDY, USB_PAD_CFG);
	142	mxc_iomux_set_pad(MX31_PIN_SFS6, USB_PAD_CFG);
	143
4bd597b6 SH	144	mdelay(10);
	145
	146	return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED \|
	147	MXC_EHCI_INTERFACE_SINGLE_UNI);
d67d1075 VL	148	}
	149
	150	#define USBH1_VBUSEN_B IOMUX_TO_GPIO(MX31_PIN_NFRE_B)
	151	#define USBH1_MODE IOMUX_TO_GPIO(MX31_PIN_NFALE)
	152
86753811	153	static int devboard_isp1105_init(struct usb_phy *otg)
d67d1075 VL	154	{
	155	int ret = gpio_request(USBH1_MODE, "usbh1-mode");
	156	if (ret)
	157	return ret;
	158	/* single ended */
	159	gpio_direction_output(USBH1_MODE, 0);
	160
	161	ret = gpio_request(USBH1_VBUSEN_B, "usbh1-vbusen");
	162	if (ret) {
	163	gpio_free(USBH1_MODE);
	164	return ret;
	165	}
	166	gpio_direction_output(USBH1_VBUSEN_B, 1);
	167
	168	return 0;
	169	}
	170
	171
76eb57ec	172	static int devboard_isp1105_set_vbus(struct usb_otg *otg, bool on)
d67d1075 VL	173	{
	174	if (on)
	175	gpio_set_value(USBH1_VBUSEN_B, 0);
	176	else
	177	gpio_set_value(USBH1_VBUSEN_B, 1);
	178
	179	return 0;
	180	}
	181
2d58de28	182	static struct mxc_usbh_platform_data usbh1_pdata __initdata = {
d67d1075 VL	183	.init = devboard_usbh1_hw_init,
d67d1075 VL	184	.portsc = MXC_EHCI_MODE_UTMI \| MXC_EHCI_SERIAL,
d67d1075 VL	185	};
	186
	187	static int __init devboard_usbh1_init(void)
	188	{
76eb57ec	189	struct usb_phy *phy;
2d58de28	190	struct platform_device *pdev;
d67d1075	191
76eb57ec HK	192	phy = kzalloc(sizeof(*phy), GFP_KERNEL);
76eb57ec HK	193	if (!phy)
d67d1075 VL	194	return -ENOMEM;
d67d1075 VL	195
76eb57ec HK	196	phy->otg = kzalloc(sizeof(struct usb_otg), GFP_KERNEL);
	197	if (!phy->otg) {
	198	kfree(phy);
	199	return -ENOMEM;
	200	}
	201
	202	phy->label = "ISP1105";
	203	phy->init = devboard_isp1105_init;
	204	phy->otg->set_vbus = devboard_isp1105_set_vbus;
d67d1075	205
76eb57ec	206	usbh1_pdata.otg = phy;
d67d1075	207
2d58de28	208	pdev = imx31_add_mxc_ehci_hs(1, &usbh1_pdata);
2d58de28	209
d3a22442	210	return PTR_ERR_OR_ZERO(pdev);
d67d1075 VL	211	}
d67d1075 VL	212
66c202ad	213
9e1dde33	214	static const struct fsl_usb2_platform_data usb_pdata __initconst = {
66c202ad PR	215	.operating_mode = FSL_USB2_DR_DEVICE,
	216	.phy_mode = FSL_USB2_PHY_ULPI,
	217	};
	218
e00f0b4a VL	219	/*
	220	* system init for baseboard usage. Will be called by mx31moboard init.
	221	*/
	222	void __init mx31moboard_devboard_init(void)
	223	{
	224	printk(KERN_INFO "Initializing mx31devboard peripherals\n");
220bbcea VL	225
	226	mxc_iomux_setup_multiple_pins(devboard_pins, ARRAY_SIZE(devboard_pins),
	227	"devboard");
	228
16cf5c41	229	imx31_add_imx_uart1(&uart_pdata);
45b131a7	230
6a697e3d	231	imx31_add_mxc_mmc(1, &sdhc2_pdata);
d67d1075	232
e335c75c VL	233	devboard_init_sel_gpios();
e335c75c VL	234
9e1dde33	235	imx31_add_fsl_usb2_udc(&usb_pdata);
66c202ad	236
d67d1075	237	devboard_usbh1_init();
e00f0b4a	238	}