[linux-block.git] / arch / arm / mach-omap1 / devices.c

/*
 * linux/arch/arm/mach-omap1/devices.c
 *
 * OMAP1 platform device setup/initialization
 *
 * 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.
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>

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

#include <asm/arch/tc.h>
#include <asm/arch/board.h>
#include <asm/arch/mux.h>
#include <asm/arch/gpio.h>

#if	defined(CONFIG_OMAP1610_IR) || defined(CONFIG_OMAP161O_IR_MODULE)

static u64 irda_dmamask = 0xffffffff;

static struct platform_device omap1610ir_device = {
	.name = "omap1610-ir",
	.id = -1,
	.dev = {
		.dma_mask	= &irda_dmamask,
	},
};

static void omap_init_irda(void)
{
	/* FIXME define and use a boot tag, members something like:
	 *  u8		uart;		// uart1, or uart3
	 * ... but driver only handles uart3 for now
	 *  s16		fir_sel;	// gpio for SIR vs FIR
	 * ... may prefer a callback for SIR/MIR/FIR mode select;
	 * while h2 uses a GPIO, H3 uses a gpio expander
	 */
	if (machine_is_omap_h2()
			|| machine_is_omap_h3())
		(void) platform_device_register(&omap1610ir_device);
}
#else
static inline void omap_init_irda(void) {}
#endif

/*-------------------------------------------------------------------------*/

#if defined(CONFIG_RTC_DRV_OMAP) || defined(CONFIG_RTC_DRV_OMAP_MODULE)

#define	OMAP_RTC_BASE		0xfffb4800

static struct resource rtc_resources[] = {
	{
		.start		= OMAP_RTC_BASE,
		.end		= OMAP_RTC_BASE + 0x5f,
		.flags		= IORESOURCE_MEM,
	},
	{
		.start		= INT_RTC_TIMER,
		.flags		= IORESOURCE_IRQ,
	},
	{
		.start		= INT_RTC_ALARM,
		.flags		= IORESOURCE_IRQ,
	},
};

static struct platform_device omap_rtc_device = {
	.name           = "omap_rtc",
	.id             = -1,
	.num_resources	= ARRAY_SIZE(rtc_resources),
	.resource	= rtc_resources,
};

static void omap_init_rtc(void)
{
	(void) platform_device_register(&omap_rtc_device);
}
#else
static inline void omap_init_rtc(void) {}
#endif

#if defined(CONFIG_OMAP_STI)

#define OMAP1_STI_BASE		IO_ADDRESS(0xfffea000)
#define OMAP1_STI_CHANNEL_BASE	(OMAP1_STI_BASE + 0x400)

static struct resource sti_resources[] = {
	{
		.start		= OMAP1_STI_BASE,
		.end		= OMAP1_STI_BASE + SZ_1K - 1,
		.flags		= IORESOURCE_MEM,
	},
	{
		.start		= OMAP1_STI_CHANNEL_BASE,
		.end		= OMAP1_STI_CHANNEL_BASE + SZ_1K - 1,
		.flags		= IORESOURCE_MEM,
	},
	{
		.start		= INT_1610_STI,
		.flags		= IORESOURCE_IRQ,
	}
};

static struct platform_device sti_device = {
	.name		= "sti",
	.id		= -1,
	.num_resources	= ARRAY_SIZE(sti_resources),
	.resource	= sti_resources,
};

static inline void omap_init_sti(void)
{
	platform_device_register(&sti_device);
}
#else
static inline void omap_init_sti(void) {}
#endif

/*-------------------------------------------------------------------------*/

/*
 * This gets called after board-specific INIT_MACHINE, and initializes most
 * on-chip peripherals accessible on this board (except for few like USB):
 *
 *  (a) Does any "standard config" pin muxing needed.  Board-specific
 *	code will have muxed GPIO pins and done "nonstandard" setup;
 *	that code could live in the boot loader.
 *  (b) Populating board-specific platform_data with the data drivers
 *	rely on to handle wiring variations.
 *  (c) Creating platform devices as meaningful on this board and
 *	with this kernel configuration.
 *
 * Claiming GPIOs, and setting their direction and initial values, is the
 * responsibility of the device drivers.  So is responding to probe().
 *
 * Board-specific knowlege like creating devices or pin setup is to be
 * kept out of drivers as much as possible.  In particular, pin setup
 * may be handled by the boot loader, and drivers should expect it will
 * normally have been done by the time they're probed.
 */
static int __init omap1_init_devices(void)
{
	/* please keep these calls, and their implementations above,
	 * in alphabetical order so they're easier to sort through.
	 */
	omap_init_irda();
	omap_init_rtc();
	omap_init_sti();

	return 0;
}
arch_initcall(omap1_init_devices);
Commit	Line	Data
7c38cf02 TL	1	/*
	2	* linux/arch/arm/mach-omap1/devices.c
	3	*
	4	* OMAP1 platform device setup/initialization
	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 as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*/
	11
7c38cf02 TL	12	#include <linux/module.h>
	13	#include <linux/kernel.h>
	14	#include <linux/init.h>
d052d1be	15	#include <linux/platform_device.h>
7c38cf02 TL	16
	17	#include <asm/hardware.h>
	18	#include <asm/io.h>
	19	#include <asm/mach-types.h>
	20	#include <asm/mach/map.h>
	21
	22	#include <asm/arch/tc.h>
	23	#include <asm/arch/board.h>
	24	#include <asm/arch/mux.h>
	25	#include <asm/arch/gpio.h>
	26
7c38cf02 TL	27	#if defined(CONFIG_OMAP1610_IR) \|\| defined(CONFIG_OMAP161O_IR_MODULE)
	28
	29	static u64 irda_dmamask = 0xffffffff;
	30
	31	static struct platform_device omap1610ir_device = {
	32	.name = "omap1610-ir",
	33	.id = -1,
	34	.dev = {
7c38cf02 TL	35	.dma_mask = &irda_dmamask,
	36	},
	37	};
	38
	39	static void omap_init_irda(void)
	40	{
	41	/* FIXME define and use a boot tag, members something like:
	42	* u8 uart; // uart1, or uart3
	43	* ... but driver only handles uart3 for now
	44	* s16 fir_sel; // gpio for SIR vs FIR
	45	* ... may prefer a callback for SIR/MIR/FIR mode select;
	46	* while h2 uses a GPIO, H3 uses a gpio expander
	47	*/
	48	if (machine_is_omap_h2()
	49	\|\| machine_is_omap_h3())
	50	(void) platform_device_register(&omap1610ir_device);
	51	}
	52	#else
	53	static inline void omap_init_irda(void) {}
	54	#endif
	55
	56	/-------------------------------------------------------------------------/
	57
db68b189	58	#if defined(CONFIG_RTC_DRV_OMAP) \|\| defined(CONFIG_RTC_DRV_OMAP_MODULE)
7c38cf02 TL	59
	60	#define OMAP_RTC_BASE 0xfffb4800
	61
	62	static struct resource rtc_resources[] = {
	63	{
	64	.start = OMAP_RTC_BASE,
	65	.end = OMAP_RTC_BASE + 0x5f,
	66	.flags = IORESOURCE_MEM,
	67	},
	68	{
	69	.start = INT_RTC_TIMER,
	70	.flags = IORESOURCE_IRQ,
	71	},
	72	{
	73	.start = INT_RTC_ALARM,
	74	.flags = IORESOURCE_IRQ,
	75	},
	76	};
	77
	78	static struct platform_device omap_rtc_device = {
	79	.name = "omap_rtc",
	80	.id = -1,
7c38cf02 TL	81	.num_resources = ARRAY_SIZE(rtc_resources),
	82	.resource = rtc_resources,
	83	};
	84
	85	static void omap_init_rtc(void)
	86	{
	87	(void) platform_device_register(&omap_rtc_device);
	88	}
	89	#else
	90	static inline void omap_init_rtc(void) {}
	91	#endif
	92
9b6553cd TL	93	#if defined(CONFIG_OMAP_STI)
	94
	95	#define OMAP1_STI_BASE IO_ADDRESS(0xfffea000)
	96	#define OMAP1_STI_CHANNEL_BASE (OMAP1_STI_BASE + 0x400)
	97
	98	static struct resource sti_resources[] = {
	99	{
	100	.start = OMAP1_STI_BASE,
	101	.end = OMAP1_STI_BASE + SZ_1K - 1,
	102	.flags = IORESOURCE_MEM,
	103	},
	104	{
	105	.start = OMAP1_STI_CHANNEL_BASE,
	106	.end = OMAP1_STI_CHANNEL_BASE + SZ_1K - 1,
	107	.flags = IORESOURCE_MEM,
	108	},
	109	{
	110	.start = INT_1610_STI,
	111	.flags = IORESOURCE_IRQ,
	112	}
	113	};
	114
	115	static struct platform_device sti_device = {
	116	.name = "sti",
	117	.id = -1,
9b6553cd TL	118	.num_resources = ARRAY_SIZE(sti_resources),
	119	.resource = sti_resources,
	120	};
	121
	122	static inline void omap_init_sti(void)
	123	{
	124	platform_device_register(&sti_device);
	125	}
	126	#else
	127	static inline void omap_init_sti(void) {}
	128	#endif
7c38cf02 TL	129
	130	/-------------------------------------------------------------------------/
	131
	132	/*
	133	* This gets called after board-specific INIT_MACHINE, and initializes most
	134	* on-chip peripherals accessible on this board (except for few like USB):
	135	*
	136	* (a) Does any "standard config" pin muxing needed. Board-specific
	137	* code will have muxed GPIO pins and done "nonstandard" setup;
	138	* that code could live in the boot loader.
	139	* (b) Populating board-specific platform_data with the data drivers
	140	* rely on to handle wiring variations.
	141	* (c) Creating platform devices as meaningful on this board and
	142	* with this kernel configuration.
	143	*
	144	* Claiming GPIOs, and setting their direction and initial values, is the
	145	* responsibility of the device drivers. So is responding to probe().
	146	*
	147	* Board-specific knowlege like creating devices or pin setup is to be
	148	* kept out of drivers as much as possible. In particular, pin setup
	149	* may be handled by the boot loader, and drivers should expect it will
	150	* normally have been done by the time they're probed.
	151	*/
3179a019	152	static int __init omap1_init_devices(void)
7c38cf02 TL	153	{
	154	/* please keep these calls, and their implementations above,
	155	* in alphabetical order so they're easier to sort through.
	156	*/
7c38cf02	157	omap_init_irda();
7c38cf02	158	omap_init_rtc();
9b6553cd	159	omap_init_sti();
7c38cf02 TL	160
	161	return 0;
	162	}
3179a019	163	arch_initcall(omap1_init_devices);
7c38cf02	164