[mirror_ubuntu-bionic-kernel.git] / arch / arm / mach-omap1 / board-palmz71.c

/*
 * linux/arch/arm/mach-omap1/board-palmz71.c
 *
 * Modified from board-generic.c
 *
 * Support for the Palm Zire71 PDA.
 *
 * Original version : Laurent Gonzalez
 *
 * Modified for zire71 : Marek Vasut
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/notifier.h>
#include <linux/clk.h>
#include <linux/irq.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/omapfb.h>
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
#include <linux/platform_data/omap1_bl.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>

#include "flash.h"
#include <mach/mux.h>
#include <linux/omap-dma.h>
#include <mach/tc.h>
#include <linux/platform_data/keypad-omap.h>

#include <mach/hardware.h>
#include <mach/usb.h>

#include "common.h"

#define PALMZ71_USBDETECT_GPIO	0
#define PALMZ71_PENIRQ_GPIO	6
#define PALMZ71_MMC_WP_GPIO	8
#define PALMZ71_HDQ_GPIO 	11

#define PALMZ71_HOTSYNC_GPIO	OMAP_MPUIO(1)
#define PALMZ71_CABLE_GPIO	OMAP_MPUIO(2)
#define PALMZ71_SLIDER_GPIO	OMAP_MPUIO(3)
#define PALMZ71_MMC_IN_GPIO	OMAP_MPUIO(4)

static const unsigned int palmz71_keymap[] = {
	KEY(0, 0, KEY_F1),
	KEY(1, 0, KEY_F2),
	KEY(2, 0, KEY_F3),
	KEY(3, 0, KEY_F4),
	KEY(4, 0, KEY_POWER),
	KEY(0, 1, KEY_LEFT),
	KEY(1, 1, KEY_DOWN),
	KEY(2, 1, KEY_UP),
	KEY(3, 1, KEY_RIGHT),
	KEY(4, 1, KEY_ENTER),
	KEY(0, 2, KEY_CAMERA),
};

static const struct matrix_keymap_data palmz71_keymap_data = {
	.keymap		= palmz71_keymap,
	.keymap_size	= ARRAY_SIZE(palmz71_keymap),
};

static struct omap_kp_platform_data palmz71_kp_data = {
	.rows	= 8,
	.cols	= 8,
	.keymap_data	= &palmz71_keymap_data,
	.rep	= true,
	.delay	= 80,
};

static struct resource palmz71_kp_resources[] = {
	[0] = {
		.start	= INT_KEYBOARD,
		.end	= INT_KEYBOARD,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct platform_device palmz71_kp_device = {
	.name	= "omap-keypad",
	.id	= -1,
	.dev	= {
		.platform_data = &palmz71_kp_data,
	},
	.num_resources	= ARRAY_SIZE(palmz71_kp_resources),
	.resource	= palmz71_kp_resources,
};

static struct mtd_partition palmz71_rom_partitions[] = {
	/* PalmOS "Small ROM", contains the bootloader and the debugger */
	{
		.name		= "smallrom",
		.offset		= 0,
		.size		= 0xa000,
		.mask_flags	= MTD_WRITEABLE,
	},
	/* PalmOS "Big ROM", a filesystem with all the OS code and data */
	{
		.name	= "bigrom",
		.offset	= SZ_128K,
		/*
		 * 0x5f0000 bytes big in the multi-language ("EFIGS") version,
		 * 0x7b0000 bytes in the English-only ("enUS") version.
		 */
		.size		= 0x7b0000,
		.mask_flags	= MTD_WRITEABLE,
	},
};

static struct physmap_flash_data palmz71_rom_data = {
	.width		= 2,
	.set_vpp	= omap1_set_vpp,
	.parts		= palmz71_rom_partitions,
	.nr_parts	= ARRAY_SIZE(palmz71_rom_partitions),
};

static struct resource palmz71_rom_resource = {
	.start	= OMAP_CS0_PHYS,
	.end	= OMAP_CS0_PHYS + SZ_8M - 1,
	.flags	= IORESOURCE_MEM,
};

static struct platform_device palmz71_rom_device = {
	.name	= "physmap-flash",
	.id	= -1,
	.dev = {
		.platform_data = &palmz71_rom_data,
	},
	.num_resources	= 1,
	.resource	= &palmz71_rom_resource,
};

static struct platform_device palmz71_lcd_device = {
	.name	= "lcd_palmz71",
	.id	= -1,
};

static struct platform_device palmz71_spi_device = {
	.name	= "spi_palmz71",
	.id	= -1,
};

static struct omap_backlight_config palmz71_backlight_config = {
	.default_intensity	= 0xa0,
};

static struct platform_device palmz71_backlight_device = {
	.name	= "omap-bl",
	.id	= -1,
	.dev	= {
		.platform_data = &palmz71_backlight_config,
	},
};

static struct platform_device *devices[] __initdata = {
	&palmz71_rom_device,
	&palmz71_kp_device,
	&palmz71_lcd_device,
	&palmz71_spi_device,
	&palmz71_backlight_device,
};

static int
palmz71_get_pendown_state(void)
{
	return !gpio_get_value(PALMZ71_PENIRQ_GPIO);
}

static const struct ads7846_platform_data palmz71_ts_info = {
	.model			= 7846,
	.vref_delay_usecs	= 100,	/* internal, no capacitor */
	.x_plate_ohms		= 419,
	.y_plate_ohms		= 486,
	.get_pendown_state	= palmz71_get_pendown_state,
};

static struct spi_board_info __initdata palmz71_boardinfo[] = { {
	/* MicroWire (bus 2) CS0 has an ads7846e */
	.modalias	= "ads7846",
	.platform_data	= &palmz71_ts_info,
	.max_speed_hz	= 120000	/* max sample rate at 3V */
				* 26	/* command + data + overhead */,
	.bus_num	= 2,
	.chip_select	= 0,
} };

static struct omap_usb_config palmz71_usb_config __initdata = {
	.register_dev	= 1,	/* Mini-B only receptacle */
	.hmc_mode	= 0,
	.pins[0]	= 2,
};

static const struct omap_lcd_config palmz71_lcd_config __initconst = {
	.ctrl_name = "internal",
};

static irqreturn_t
palmz71_powercable(int irq, void *dev_id)
{
	if (gpio_get_value(PALMZ71_USBDETECT_GPIO)) {
		printk(KERN_INFO "PM: Power cable connected\n");
		irq_set_irq_type(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
				 IRQ_TYPE_EDGE_FALLING);
	} else {
		printk(KERN_INFO "PM: Power cable disconnected\n");
		irq_set_irq_type(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
				 IRQ_TYPE_EDGE_RISING);
	}
	return IRQ_HANDLED;
}

static void __init
omap_mpu_wdt_mode(int mode)
{
	if (mode)
		omap_writew(0x8000, OMAP_WDT_TIMER_MODE);
	else {
		omap_writew(0x00f5, OMAP_WDT_TIMER_MODE);
		omap_writew(0x00a0, OMAP_WDT_TIMER_MODE);
	}
}

static void __init
palmz71_gpio_setup(int early)
{
	if (early) {
		/* Only set GPIO1 so we have a working serial */
		gpio_direction_output(1, 1);
	} else {
		/* Set MMC/SD host WP pin as input */
		if (gpio_request(PALMZ71_MMC_WP_GPIO, "MMC WP") < 0) {
			printk(KERN_ERR "Could not reserve WP GPIO!\n");
			return;
		}
		gpio_direction_input(PALMZ71_MMC_WP_GPIO);

		/* Monitor the Power-cable-connected signal */
		if (gpio_request(PALMZ71_USBDETECT_GPIO, "USB detect") < 0) {
			printk(KERN_ERR
				"Could not reserve cable signal GPIO!\n");
			return;
		}
		gpio_direction_input(PALMZ71_USBDETECT_GPIO);
		if (request_irq(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
				palmz71_powercable, 0, "palmz71-cable", NULL))
			printk(KERN_ERR
					"IRQ request for power cable failed!\n");
		palmz71_powercable(gpio_to_irq(PALMZ71_USBDETECT_GPIO), NULL);
	}
}

static void __init
omap_palmz71_init(void)
{
	/* mux pins for uarts */
	omap_cfg_reg(UART1_TX);
	omap_cfg_reg(UART1_RTS);
	omap_cfg_reg(UART2_TX);
	omap_cfg_reg(UART2_RTS);
	omap_cfg_reg(UART3_TX);
	omap_cfg_reg(UART3_RX);

	palmz71_gpio_setup(1);
	omap_mpu_wdt_mode(0);

	platform_add_devices(devices, ARRAY_SIZE(devices));

	palmz71_boardinfo[0].irq = gpio_to_irq(PALMZ71_PENIRQ_GPIO);
	spi_register_board_info(palmz71_boardinfo,
				ARRAY_SIZE(palmz71_boardinfo));
	omap1_usb_init(&palmz71_usb_config);
	omap_serial_init();
	omap_register_i2c_bus(1, 100, NULL, 0);
	palmz71_gpio_setup(0);

	omapfb_set_lcd_config(&palmz71_lcd_config);
}

MACHINE_START(OMAP_PALMZ71, "OMAP310 based Palm Zire71")
	.atag_offset	= 0x100,
	.map_io		= omap15xx_map_io,
	.init_early     = omap1_init_early,
	.init_irq	= omap1_init_irq,
	.handle_irq	= omap1_handle_irq,
	.init_machine	= omap_palmz71_init,
	.init_late	= omap1_init_late,
	.init_time	= omap1_timer_init,
	.restart	= omap1_restart,
MACHINE_END
Commit	Line	Data
ec70e8af MV	1	/*
	2	* linux/arch/arm/mach-omap1/board-palmz71.c
	3	*
	4	* Modified from board-generic.c
	5	*
	6	* Support for the Palm Zire71 PDA.
	7	*
	8	* Original version : Laurent Gonzalez
	9	*
	10	* Modified for zire71 : Marek Vasut
	11	*
	12	* This program is free software; you can redistribute it and/or modify
	13	* it under the terms of the GNU General Public License version 2 as
	14	* published by the Free Software Foundation.
	15	*/
	16
	17	#include <linux/delay.h>
2f8163ba	18	#include <linux/gpio.h>
ec70e8af MV	19	#include <linux/kernel.h>
	20	#include <linux/init.h>
	21	#include <linux/platform_device.h>
	22	#include <linux/notifier.h>
	23	#include <linux/clk.h>
	24	#include <linux/irq.h>
	25	#include <linux/input.h>
	26	#include <linux/interrupt.h>
	27	#include <linux/mtd/mtd.h>
	28	#include <linux/mtd/partitions.h>
561b036a	29	#include <linux/mtd/physmap.h>
ddba6c7f	30	#include <linux/omapfb.h>
2e3ee9f4 TL	31	#include <linux/spi/spi.h>
2e3ee9f4 TL	32	#include <linux/spi/ads7846.h>
cc012729	33	#include <linux/platform_data/omap1_bl.h>
ec70e8af	34
ec70e8af MV	35	#include <asm/mach-types.h>
	36	#include <asm/mach/arch.h>
	37	#include <asm/mach/map.h>
ec70e8af	38
100f9638	39	#include "flash.h"
70c494c3	40	#include <mach/mux.h>
45c3eb7d	41	#include <linux/omap-dma.h>
54b693d4	42	#include <mach/tc.h>
2203747c	43	#include <linux/platform_data/keypad-omap.h>
ec70e8af	44
2e3ee9f4	45	#include <mach/hardware.h>
b924b204	46	#include <mach/usb.h>
2e3ee9f4 TL	47
2e3ee9f4 TL	48	#include "common.h"
ec70e8af	49
b2830810 TL	50	#define PALMZ71_USBDETECT_GPIO 0
	51	#define PALMZ71_PENIRQ_GPIO 6
	52	#define PALMZ71_MMC_WP_GPIO 8
	53	#define PALMZ71_HDQ_GPIO 11
	54
	55	#define PALMZ71_HOTSYNC_GPIO OMAP_MPUIO(1)
	56	#define PALMZ71_CABLE_GPIO OMAP_MPUIO(2)
	57	#define PALMZ71_SLIDER_GPIO OMAP_MPUIO(3)
	58	#define PALMZ71_MMC_IN_GPIO OMAP_MPUIO(4)
	59
da1f026b	60	static const unsigned int palmz71_keymap[] = {
ec70e8af	61	KEY(0, 0, KEY_F1),
da1f026b JK	62	KEY(1, 0, KEY_F2),
	63	KEY(2, 0, KEY_F3),
	64	KEY(3, 0, KEY_F4),
	65	KEY(4, 0, KEY_POWER),
	66	KEY(0, 1, KEY_LEFT),
ec70e8af	67	KEY(1, 1, KEY_DOWN),
da1f026b JK	68	KEY(2, 1, KEY_UP),
	69	KEY(3, 1, KEY_RIGHT),
	70	KEY(4, 1, KEY_ENTER),
	71	KEY(0, 2, KEY_CAMERA),
	72	};
	73
	74	static const struct matrix_keymap_data palmz71_keymap_data = {
	75	.keymap = palmz71_keymap,
	76	.keymap_size = ARRAY_SIZE(palmz71_keymap),
ec70e8af MV	77	};
	78
	79	static struct omap_kp_platform_data palmz71_kp_data = {
	80	.rows = 8,
	81	.cols = 8,
da1f026b JK	82	.keymap_data = &palmz71_keymap_data,
da1f026b JK	83	.rep = true,
ec70e8af MV	84	.delay = 80,
	85	};
	86
	87	static struct resource palmz71_kp_resources[] = {
	88	[0] = {
	89	.start = INT_KEYBOARD,
	90	.end = INT_KEYBOARD,
	91	.flags = IORESOURCE_IRQ,
	92	},
	93	};
	94
	95	static struct platform_device palmz71_kp_device = {
	96	.name = "omap-keypad",
	97	.id = -1,
	98	.dev = {
	99	.platform_data = &palmz71_kp_data,
	100	},
	101	.num_resources = ARRAY_SIZE(palmz71_kp_resources),
	102	.resource = palmz71_kp_resources,
	103	};
	104
	105	static struct mtd_partition palmz71_rom_partitions[] = {
	106	/* PalmOS "Small ROM", contains the bootloader and the debugger */
	107	{
	108	.name = "smallrom",
	109	.offset = 0,
	110	.size = 0xa000,
	111	.mask_flags = MTD_WRITEABLE,
	112	},
	113	/* PalmOS "Big ROM", a filesystem with all the OS code and data */
	114	{
	115	.name = "bigrom",
	116	.offset = SZ_128K,
	117	/*
	118	* 0x5f0000 bytes big in the multi-language ("EFIGS") version,
	119	* 0x7b0000 bytes in the English-only ("enUS") version.
	120	*/
	121	.size = 0x7b0000,
	122	.mask_flags = MTD_WRITEABLE,
	123	},
	124	};
	125
561b036a	126	static struct physmap_flash_data palmz71_rom_data = {
ec70e8af	127	.width = 2,
561b036a	128	.set_vpp = omap1_set_vpp,
ec70e8af MV	129	.parts = palmz71_rom_partitions,
	130	.nr_parts = ARRAY_SIZE(palmz71_rom_partitions),
	131	};
	132
	133	static struct resource palmz71_rom_resource = {
	134	.start = OMAP_CS0_PHYS,
	135	.end = OMAP_CS0_PHYS + SZ_8M - 1,
	136	.flags = IORESOURCE_MEM,
	137	};
	138
	139	static struct platform_device palmz71_rom_device = {
561b036a	140	.name = "physmap-flash",
ec70e8af MV	141	.id = -1,
	142	.dev = {
	143	.platform_data = &palmz71_rom_data,
	144	},
	145	.num_resources = 1,
	146	.resource = &palmz71_rom_resource,
	147	};
	148
	149	static struct platform_device palmz71_lcd_device = {
	150	.name = "lcd_palmz71",
	151	.id = -1,
	152	};
	153
ec70e8af MV	154	static struct platform_device palmz71_spi_device = {
	155	.name = "spi_palmz71",
	156	.id = -1,
	157	};
	158
ec70e8af MV	159	static struct omap_backlight_config palmz71_backlight_config = {
	160	.default_intensity = 0xa0,
	161	};
	162
	163	static struct platform_device palmz71_backlight_device = {
	164	.name = "omap-bl",
	165	.id = -1,
	166	.dev = {
	167	.platform_data = &palmz71_backlight_config,
	168	},
	169	};
	170
	171	static struct platform_device *devices[] __initdata = {
	172	&palmz71_rom_device,
	173	&palmz71_kp_device,
ec70e8af	174	&palmz71_lcd_device,
ec70e8af MV	175	&palmz71_spi_device,
	176	&palmz71_backlight_device,
	177	};
	178
	179	static int
	180	palmz71_get_pendown_state(void)
	181	{
0b84b5ca	182	return !gpio_get_value(PALMZ71_PENIRQ_GPIO);
ec70e8af MV	183	}
	184
	185	static const struct ads7846_platform_data palmz71_ts_info = {
	186	.model = 7846,
	187	.vref_delay_usecs = 100, /* internal, no capacitor */
	188	.x_plate_ohms = 419,
	189	.y_plate_ohms = 486,
	190	.get_pendown_state = palmz71_get_pendown_state,
	191	};
	192
	193	static struct spi_board_info __initdata palmz71_boardinfo[] = { {
	194	/* MicroWire (bus 2) CS0 has an ads7846e */
	195	.modalias = "ads7846",
	196	.platform_data = &palmz71_ts_info,
ec70e8af MV	197	.max_speed_hz = 120000 /* max sample rate at 3V */
	198	* 26 /* command + data + overhead */,
	199	.bus_num = 2,
	200	.chip_select = 0,
	201	} };
	202
	203	static struct omap_usb_config palmz71_usb_config __initdata = {
	204	.register_dev = 1, /* Mini-B only receptacle */
	205	.hmc_mode = 0,
	206	.pins[0] = 2,
	207	};
	208
d25c70cf	209	static const struct omap_lcd_config palmz71_lcd_config __initconst = {
ec70e8af MV	210	.ctrl_name = "internal",
	211	};
	212
ec70e8af MV	213	static irqreturn_t
	214	palmz71_powercable(int irq, void *dev_id)
	215	{
0b84b5ca	216	if (gpio_get_value(PALMZ71_USBDETECT_GPIO)) {
ec70e8af	217	printk(KERN_INFO "PM: Power cable connected\n");
6845664a TG	218	irq_set_irq_type(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
6845664a TG	219	IRQ_TYPE_EDGE_FALLING);
ec70e8af MV	220	} else {
ec70e8af MV	221	printk(KERN_INFO "PM: Power cable disconnected\n");
6845664a TG	222	irq_set_irq_type(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
6845664a TG	223	IRQ_TYPE_EDGE_RISING);
ec70e8af MV	224	}
	225	return IRQ_HANDLED;
	226	}
	227
	228	static void __init
	229	omap_mpu_wdt_mode(int mode)
	230	{
	231	if (mode)
	232	omap_writew(0x8000, OMAP_WDT_TIMER_MODE);
	233	else {
	234	omap_writew(0x00f5, OMAP_WDT_TIMER_MODE);
	235	omap_writew(0x00a0, OMAP_WDT_TIMER_MODE);
	236	}
	237	}
	238
	239	static void __init
	240	palmz71_gpio_setup(int early)
	241	{
	242	if (early) {
	243	/* Only set GPIO1 so we have a working serial */
e918edf7	244	gpio_direction_output(1, 1);
ec70e8af MV	245	} else {
ec70e8af MV	246	/* Set MMC/SD host WP pin as input */
f2d18fea	247	if (gpio_request(PALMZ71_MMC_WP_GPIO, "MMC WP") < 0) {
ec70e8af MV	248	printk(KERN_ERR "Could not reserve WP GPIO!\n");
	249	return;
	250	}
40e3925b	251	gpio_direction_input(PALMZ71_MMC_WP_GPIO);
ec70e8af MV	252
ec70e8af MV	253	/* Monitor the Power-cable-connected signal */
f2d18fea	254	if (gpio_request(PALMZ71_USBDETECT_GPIO, "USB detect") < 0) {
ec70e8af MV	255	printk(KERN_ERR
	256	"Could not reserve cable signal GPIO!\n");
	257	return;
	258	}
40e3925b	259	gpio_direction_input(PALMZ71_USBDETECT_GPIO);
15f74b03	260	if (request_irq(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
9863fa6c	261	palmz71_powercable, 0, "palmz71-cable", NULL))
ec70e8af MV	262	printk(KERN_ERR
ec70e8af MV	263	"IRQ request for power cable failed!\n");
a7022d60	264	palmz71_powercable(gpio_to_irq(PALMZ71_USBDETECT_GPIO), NULL);
ec70e8af MV	265	}
	266	}
	267
	268	static void __init
	269	omap_palmz71_init(void)
	270	{
c33da3a8 JK	271	/* mux pins for uarts */
	272	omap_cfg_reg(UART1_TX);
	273	omap_cfg_reg(UART1_RTS);
	274	omap_cfg_reg(UART2_TX);
	275	omap_cfg_reg(UART2_RTS);
	276	omap_cfg_reg(UART3_TX);
	277	omap_cfg_reg(UART3_RX);
	278
ec70e8af MV	279	palmz71_gpio_setup(1);
	280	omap_mpu_wdt_mode(0);
	281
ec70e8af MV	282	platform_add_devices(devices, ARRAY_SIZE(devices));
ec70e8af MV	283
46a0a540	284	palmz71_boardinfo[0].irq = gpio_to_irq(PALMZ71_PENIRQ_GPIO);
ec70e8af MV	285	spi_register_board_info(palmz71_boardinfo,
ec70e8af MV	286	ARRAY_SIZE(palmz71_boardinfo));
dd0cdd88	287	omap1_usb_init(&palmz71_usb_config);
ec70e8af	288	omap_serial_init();
1ed16a86	289	omap_register_i2c_bus(1, 100, NULL, 0);
ec70e8af	290	palmz71_gpio_setup(0);
ddba6c7f TV	291
ddba6c7f TV	292	omapfb_set_lcd_config(&palmz71_lcd_config);
ec70e8af MV	293	}
ec70e8af MV	294
ec70e8af	295	MACHINE_START(OMAP_PALMZ71, "OMAP310 based Palm Zire71")
246e389d	296	.atag_offset = 0x100,
7b88e62f TL	297	.map_io = omap15xx_map_io,
7b88e62f TL	298	.init_early = omap1_init_early,
7b88e62f	299	.init_irq = omap1_init_irq,
b694331c	300	.handle_irq = omap1_handle_irq,
71ee7dad	301	.init_machine = omap_palmz71_init,
82c3bd03	302	.init_late = omap1_init_late,
6bb27d73	303	.init_time = omap1_timer_init,
baa95883	304	.restart = omap1_restart,
ec70e8af	305	MACHINE_END