[deliverable/linux.git] / arch / arm / mach-omap1 / board-nokia770.c

/*
 * linux/arch/arm/mach-omap1/board-nokia770.c
 *
 * Modified from board-generic.c
 *
 * 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/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/input.h>
#include <linux/clk.h>

#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
#include <linux/workqueue.h>
#include <linux/delay.h>

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

#include <asm/arch/gpio.h>
#include <asm/arch/mux.h>
#include <asm/arch/usb.h>
#include <asm/arch/board.h>
#include <asm/arch/keypad.h>
#include <asm/arch/common.h>
#include <asm/arch/dsp_common.h>
#include <asm/arch/aic23.h>
#include <asm/arch/gpio.h>

#include "../plat-omap/dsp/dsp_common.h"

static void __init omap_nokia770_init_irq(void)
{
	/* On Nokia 770, the SleepX signal is masked with an
	 * MPUIO line by default.  It has to be unmasked for it
	 * to become functional */

	/* SleepX mask direction */
	omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
	/* Unmask SleepX signal */
	omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);

	omap1_init_common_hw();
	omap_init_irq();
}

static int nokia770_keymap[] = {
	KEY(0, 1, GROUP_0 | KEY_UP),
	KEY(0, 2, GROUP_1 | KEY_F5),
	KEY(1, 0, GROUP_0 | KEY_LEFT),
	KEY(1, 1, GROUP_0 | KEY_ENTER),
	KEY(1, 2, GROUP_0 | KEY_RIGHT),
	KEY(2, 0, GROUP_1 | KEY_ESC),
	KEY(2, 1, GROUP_0 | KEY_DOWN),
	KEY(2, 2, GROUP_1 | KEY_F4),
	KEY(3, 0, GROUP_2 | KEY_F7),
	KEY(3, 1, GROUP_2 | KEY_F8),
	KEY(3, 2, GROUP_2 | KEY_F6),
	0
};

static struct resource nokia770_kp_resources[] = {
	[0] = {
		.start	= INT_KEYBOARD,
		.end	= INT_KEYBOARD,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct omap_kp_platform_data nokia770_kp_data = {
	.rows		= 8,
	.cols		= 8,
	.keymap		= nokia770_keymap,
	.keymapsize	= ARRAY_SIZE(nokia770_keymap),
	.delay		= 4,
};

static struct platform_device nokia770_kp_device = {
	.name		= "omap-keypad",
	.id		= -1,
	.dev		= {
		.platform_data = &nokia770_kp_data,
	},
	.num_resources	= ARRAY_SIZE(nokia770_kp_resources),
	.resource	= nokia770_kp_resources,
};

static struct platform_device *nokia770_devices[] __initdata = {
	&nokia770_kp_device,
};

static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = {
	.x_max		= 0x0fff,
	.y_max		= 0x0fff,
	.x_plate_ohms	= 180,
	.pressure_max	= 255,
	.debounce_max	= 10,
	.debounce_tol	= 3,
};

static struct spi_board_info nokia770_spi_board_info[] __initdata = {
	[0] = {
		.modalias       = "lcd_mipid",
		.bus_num        = 2,
		.chip_select    = 3,
		.max_speed_hz   = 12000000,
	},
	[1] = {
		.modalias       = "ads7846",
		.bus_num        = 2,
		.chip_select    = 0,
		.max_speed_hz   = 2500000,
		.irq		= OMAP_GPIO_IRQ(15),
		.platform_data	= &nokia770_ads7846_platform_data,
	},
};


/* assume no Mini-AB port */

static struct omap_usb_config nokia770_usb_config __initdata = {
	.otg		= 1,
	.register_host	= 1,
	.register_dev	= 1,
	.hmc_mode	= 16,
	.pins[0]	= 6,
};

static struct omap_mmc_config nokia770_mmc_config __initdata = {
	.mmc[0] = {
		.enabled	= 0,
		.wire4		= 0,
		.wp_pin		= -1,
		.power_pin	= -1,
		.switch_pin	= -1,
	},
	.mmc[1] = {
		.enabled	= 0,
		.wire4		= 0,
		.wp_pin		= -1,
		.power_pin	= -1,
		.switch_pin	= -1,
	},
};

static struct omap_board_config_kernel nokia770_config[] = {
	{ OMAP_TAG_USB,		NULL },
	{ OMAP_TAG_MMC,		&nokia770_mmc_config },
};

#if	defined(CONFIG_OMAP_DSP)
/*
 * audio power control
 */
#define	HEADPHONE_GPIO		14
#define	AMPLIFIER_CTRL_GPIO	58

static struct clk *dspxor_ck;
static DECLARE_MUTEX(audio_pwr_sem);
/*
 * audio_pwr_state
 * +--+-------------------------+---------------------------------------+
 * |-1|down			|power-up request -> 0			|
 * +--+-------------------------+---------------------------------------+
 * | 0|up			|power-down(1) request -> 1		|
 * |  |				|power-down(2) request -> (ignore)	|
 * +--+-------------------------+---------------------------------------+
 * | 1|up,			|power-up request -> 0			|
 * |  |received down(1) request	|power-down(2) request -> -1		|
 * +--+-------------------------+---------------------------------------+
 */
static int audio_pwr_state = -1;

/*
 * audio_pwr_up / down should be called under audio_pwr_sem
 */
static void nokia770_audio_pwr_up(void)
{
	clk_enable(dspxor_ck);

	/* Turn on codec */
	aic23_power_up();

	if (omap_get_gpio_datain(HEADPHONE_GPIO))
		/* HP not connected, turn on amplifier */
		omap_set_gpio_dataout(AMPLIFIER_CTRL_GPIO, 1);
	else
		/* HP connected, do not turn on amplifier */
		printk("HP connected\n");
}

static void codec_delayed_power_down(struct work_struct *work)
{
	down(&audio_pwr_sem);
	if (audio_pwr_state == -1)
		aic23_power_down();
	clk_disable(dspxor_ck);
	up(&audio_pwr_sem);
}

static DECLARE_DELAYED_WORK(codec_power_down_work, codec_delayed_power_down);

static void nokia770_audio_pwr_down(void)
{
	/* Turn off amplifier */
	omap_set_gpio_dataout(AMPLIFIER_CTRL_GPIO, 0);

	/* Turn off codec: schedule delayed work */
	schedule_delayed_work(&codec_power_down_work, HZ / 20);	/* 50ms */
}

static int
nokia770_audio_pwr_up_request(struct dsp_kfunc_device *kdev, int stage)
{
	down(&audio_pwr_sem);
	if (audio_pwr_state == -1)
		nokia770_audio_pwr_up();
	/* force audio_pwr_state = 0, even if it was 1. */
	audio_pwr_state = 0;
	up(&audio_pwr_sem);
	return 0;
}

static int
nokia770_audio_pwr_down_request(struct dsp_kfunc_device *kdev, int stage)
{
	down(&audio_pwr_sem);
	switch (stage) {
	case 1:
		if (audio_pwr_state == 0)
			audio_pwr_state = 1;
		break;
	case 2:
		if (audio_pwr_state == 1) {
			nokia770_audio_pwr_down();
			audio_pwr_state = -1;
		}
		break;
	}
	up(&audio_pwr_sem);
	return 0;
}

static struct dsp_kfunc_device nokia770_audio_device = {
	.name	 = "audio",
	.type	 = DSP_KFUNC_DEV_TYPE_AUDIO,
	.enable  = nokia770_audio_pwr_up_request,
	.disable = nokia770_audio_pwr_down_request,
};

static __init int omap_dsp_init(void)
{
	int ret;

	dspxor_ck = clk_get(0, "dspxor_ck");
	if (IS_ERR(dspxor_ck)) {
		printk(KERN_ERR "couldn't acquire dspxor_ck\n");
		return PTR_ERR(dspxor_ck);
	}

	ret = dsp_kfunc_device_register(&nokia770_audio_device);
	if (ret) {
		printk(KERN_ERR
		       "KFUNC device registration faild: %s\n",
		       nokia770_audio_device.name);
		goto out;
	}
	return 0;
 out:
	return ret;
}
#endif	/* CONFIG_OMAP_DSP */

static void __init omap_nokia770_init(void)
{
	nokia770_config[0].data = &nokia770_usb_config;

	platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
	spi_register_board_info(nokia770_spi_board_info,
				ARRAY_SIZE(nokia770_spi_board_info));
	omap_board_config = nokia770_config;
	omap_board_config_size = ARRAY_SIZE(nokia770_config);
	omap_serial_init();
	omap_dsp_init();
}

static void __init omap_nokia770_map_io(void)
{
	omap1_map_common_io();
}

MACHINE_START(NOKIA770, "Nokia 770")
	.phys_io	= 0xfff00000,
	.io_pg_offst	= ((0xfef00000) >> 18) & 0xfffc,
	.boot_params	= 0x10000100,
	.map_io		= omap_nokia770_map_io,
	.init_irq	= omap_nokia770_init_irq,
	.init_machine	= omap_nokia770_init,
	.timer		= &omap_timer,
MACHINE_END
Commit	Line	Data
9b6553cd TL	1	/*
	2	* linux/arch/arm/mach-omap1/board-nokia770.c
	3	*
	4	* Modified from board-generic.c
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License version 2 as
	8	* published by the Free Software Foundation.
	9	*/
	10
	11	#include <linux/kernel.h>
	12	#include <linux/init.h>
	13	#include <linux/platform_device.h>
	14	#include <linux/input.h>
	15	#include <linux/clk.h>
	16
	17	#include <linux/spi/spi.h>
	18	#include <linux/spi/ads7846.h>
19350610 DB	19	#include <linux/workqueue.h>
19350610 DB	20	#include <linux/delay.h>
9b6553cd TL	21
	22	#include <asm/hardware.h>
	23	#include <asm/mach-types.h>
	24	#include <asm/mach/arch.h>
	25	#include <asm/mach/map.h>
	26
	27	#include <asm/arch/gpio.h>
	28	#include <asm/arch/mux.h>
	29	#include <asm/arch/usb.h>
	30	#include <asm/arch/board.h>
	31	#include <asm/arch/keypad.h>
	32	#include <asm/arch/common.h>
	33	#include <asm/arch/dsp_common.h>
	34	#include <asm/arch/aic23.h>
	35	#include <asm/arch/gpio.h>
	36
a524626b TL	37	#include "../plat-omap/dsp/dsp_common.h"
a524626b TL	38
9b6553cd TL	39	static void __init omap_nokia770_init_irq(void)
	40	{
	41	/* On Nokia 770, the SleepX signal is masked with an
	42	* MPUIO line by default. It has to be unmasked for it
	43	* to become functional */
	44
	45	/* SleepX mask direction */
	46	omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
	47	/* Unmask SleepX signal */
	48	omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
	49
	50	omap1_init_common_hw();
	51	omap_init_irq();
	52	}
	53
	54	static int nokia770_keymap[] = {
	55	KEY(0, 1, GROUP_0 \| KEY_UP),
	56	KEY(0, 2, GROUP_1 \| KEY_F5),
	57	KEY(1, 0, GROUP_0 \| KEY_LEFT),
	58	KEY(1, 1, GROUP_0 \| KEY_ENTER),
	59	KEY(1, 2, GROUP_0 \| KEY_RIGHT),
	60	KEY(2, 0, GROUP_1 \| KEY_ESC),
	61	KEY(2, 1, GROUP_0 \| KEY_DOWN),
	62	KEY(2, 2, GROUP_1 \| KEY_F4),
	63	KEY(3, 0, GROUP_2 \| KEY_F7),
	64	KEY(3, 1, GROUP_2 \| KEY_F8),
	65	KEY(3, 2, GROUP_2 \| KEY_F6),
	66	0
	67	};
	68
	69	static struct resource nokia770_kp_resources[] = {
	70	[0] = {
	71	.start = INT_KEYBOARD,
	72	.end = INT_KEYBOARD,
	73	.flags = IORESOURCE_IRQ,
	74	},
	75	};
	76
	77	static struct omap_kp_platform_data nokia770_kp_data = {
4d24607b KS	78	.rows = 8,
	79	.cols = 8,
	80	.keymap = nokia770_keymap,
6d5aefb8	81	.keymapsize = ARRAY_SIZE(nokia770_keymap),
4d24607b	82	.delay = 4,
9b6553cd TL	83	};
	84
	85	static struct platform_device nokia770_kp_device = {
	86	.name = "omap-keypad",
	87	.id = -1,
	88	.dev = {
	89	.platform_data = &nokia770_kp_data,
	90	},
	91	.num_resources = ARRAY_SIZE(nokia770_kp_resources),
	92	.resource = nokia770_kp_resources,
	93	};
	94
	95	static struct platform_device *nokia770_devices[] __initdata = {
a524626b	96	&nokia770_kp_device,
9b6553cd TL	97	};
	98
	99	static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = {
	100	.x_max = 0x0fff,
	101	.y_max = 0x0fff,
	102	.x_plate_ohms = 180,
	103	.pressure_max = 255,
	104	.debounce_max = 10,
	105	.debounce_tol = 3,
	106	};
	107
	108	static struct spi_board_info nokia770_spi_board_info[] __initdata = {
	109	[0] = {
a524626b	110	.modalias = "lcd_mipid",
9b6553cd TL	111	.bus_num = 2,
	112	.chip_select = 3,
	113	.max_speed_hz = 12000000,
	114	},
	115	[1] = {
	116	.modalias = "ads7846",
	117	.bus_num = 2,
	118	.chip_select = 0,
	119	.max_speed_hz = 2500000,
	120	.irq = OMAP_GPIO_IRQ(15),
	121	.platform_data = &nokia770_ads7846_platform_data,
	122	},
	123	};
	124
	125
	126	/* assume no Mini-AB port */
	127
	128	static struct omap_usb_config nokia770_usb_config __initdata = {
	129	.otg = 1,
	130	.register_host = 1,
	131	.register_dev = 1,
	132	.hmc_mode = 16,
	133	.pins[0] = 6,
	134	};
	135
	136	static struct omap_mmc_config nokia770_mmc_config __initdata = {
	137	.mmc[0] = {
	138	.enabled = 0,
	139	.wire4 = 0,
	140	.wp_pin = -1,
	141	.power_pin = -1,
	142	.switch_pin = -1,
	143	},
	144	.mmc[1] = {
	145	.enabled = 0,
	146	.wire4 = 0,
	147	.wp_pin = -1,
	148	.power_pin = -1,
	149	.switch_pin = -1,
	150	},
	151	};
	152
	153	static struct omap_board_config_kernel nokia770_config[] = {
	154	{ OMAP_TAG_USB, NULL },
	155	{ OMAP_TAG_MMC, &nokia770_mmc_config },
	156	};
	157
a524626b	158	#if defined(CONFIG_OMAP_DSP)
9b6553cd TL	159	/*
	160	* audio power control
	161	*/
	162	#define HEADPHONE_GPIO 14
	163	#define AMPLIFIER_CTRL_GPIO 58
	164
	165	static struct clk *dspxor_ck;
	166	static DECLARE_MUTEX(audio_pwr_sem);
	167	/*
	168	* audio_pwr_state
	169	* +--+-------------------------+---------------------------------------+
	170	* \|-1\|down \|power-up request -> 0 \|
	171	* +--+-------------------------+---------------------------------------+
	172	* \| 0\|up \|power-down(1) request -> 1 \|
	173	* \| \| \|power-down(2) request -> (ignore) \|
	174	* +--+-------------------------+---------------------------------------+
	175	* \| 1\|up, \|power-up request -> 0 \|
	176	* \| \|received down(1) request \|power-down(2) request -> -1 \|
	177	* +--+-------------------------+---------------------------------------+
	178	*/
	179	static int audio_pwr_state = -1;
	180
	181	/*
	182	* audio_pwr_up / down should be called under audio_pwr_sem
	183	*/
	184	static void nokia770_audio_pwr_up(void)
	185	{
	186	clk_enable(dspxor_ck);
	187
	188	/* Turn on codec */
a524626b	189	aic23_power_up();
9b6553cd TL	190
	191	if (omap_get_gpio_datain(HEADPHONE_GPIO))
	192	/* HP not connected, turn on amplifier */
	193	omap_set_gpio_dataout(AMPLIFIER_CTRL_GPIO, 1);
	194	else
	195	/* HP connected, do not turn on amplifier */
	196	printk("HP connected\n");
	197	}
	198
6d5aefb8	199	static void codec_delayed_power_down(struct work_struct *work)
9b6553cd TL	200	{
	201	down(&audio_pwr_sem);
	202	if (audio_pwr_state == -1)
a524626b	203	aic23_power_down();
9b6553cd TL	204	clk_disable(dspxor_ck);
	205	up(&audio_pwr_sem);
	206	}
	207
6d5aefb8	208	static DECLARE_DELAYED_WORK(codec_power_down_work, codec_delayed_power_down);
9b6553cd TL	209
	210	static void nokia770_audio_pwr_down(void)
	211	{
	212	/* Turn off amplifier */
	213	omap_set_gpio_dataout(AMPLIFIER_CTRL_GPIO, 0);
	214
	215	/* Turn off codec: schedule delayed work */
	216	schedule_delayed_work(&codec_power_down_work, HZ / 20); /* 50ms */
	217	}
	218
a524626b TL	219	static int
a524626b TL	220	nokia770_audio_pwr_up_request(struct dsp_kfunc_device *kdev, int stage)
9b6553cd TL	221	{
	222	down(&audio_pwr_sem);
	223	if (audio_pwr_state == -1)
	224	nokia770_audio_pwr_up();
	225	/* force audio_pwr_state = 0, even if it was 1. */
	226	audio_pwr_state = 0;
	227	up(&audio_pwr_sem);
a524626b	228	return 0;
9b6553cd TL	229	}
9b6553cd TL	230
a524626b TL	231	static int
a524626b TL	232	nokia770_audio_pwr_down_request(struct dsp_kfunc_device *kdev, int stage)
9b6553cd TL	233	{
	234	down(&audio_pwr_sem);
	235	switch (stage) {
	236	case 1:
	237	if (audio_pwr_state == 0)
	238	audio_pwr_state = 1;
	239	break;
	240	case 2:
	241	if (audio_pwr_state == 1) {
	242	nokia770_audio_pwr_down();
	243	audio_pwr_state = -1;
	244	}
	245	break;
	246	}
	247	up(&audio_pwr_sem);
a524626b TL	248	return 0;
	249	}
	250
	251	static struct dsp_kfunc_device nokia770_audio_device = {
	252	.name = "audio",
	253	.type = DSP_KFUNC_DEV_TYPE_AUDIO,
	254	.enable = nokia770_audio_pwr_up_request,
	255	.disable = nokia770_audio_pwr_down_request,
	256	};
	257
	258	static __init int omap_dsp_init(void)
	259	{
	260	int ret;
	261
	262	dspxor_ck = clk_get(0, "dspxor_ck");
	263	if (IS_ERR(dspxor_ck)) {
	264	printk(KERN_ERR "couldn't acquire dspxor_ck\n");
	265	return PTR_ERR(dspxor_ck);
	266	}
	267
	268	ret = dsp_kfunc_device_register(&nokia770_audio_device);
	269	if (ret) {
	270	printk(KERN_ERR
	271	"KFUNC device registration faild: %s\n",
	272	nokia770_audio_device.name);
	273	goto out;
	274	}
	275	return 0;
	276	out:
	277	return ret;
9b6553cd	278	}
a524626b	279	#endif /* CONFIG_OMAP_DSP */
9b6553cd TL	280
	281	static void __init omap_nokia770_init(void)
	282	{
	283	nokia770_config[0].data = &nokia770_usb_config;
	284
	285	platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
	286	spi_register_board_info(nokia770_spi_board_info,
	287	ARRAY_SIZE(nokia770_spi_board_info));
	288	omap_board_config = nokia770_config;
	289	omap_board_config_size = ARRAY_SIZE(nokia770_config);
	290	omap_serial_init();
a524626b	291	omap_dsp_init();
9b6553cd TL	292	}
	293
	294	static void __init omap_nokia770_map_io(void)
	295	{
	296	omap1_map_common_io();
	297	}
	298
	299	MACHINE_START(NOKIA770, "Nokia 770")
	300	.phys_io = 0xfff00000,
	301	.io_pg_offst = ((0xfef00000) >> 18) & 0xfffc,
	302	.boot_params = 0x10000100,
	303	.map_io = omap_nokia770_map_io,
	304	.init_irq = omap_nokia770_init_irq,
	305	.init_machine = omap_nokia770_init,
	306	.timer = &omap_timer,
	307	MACHINE_END