devices.c

omap3 linux 2.6 用nocc去除了冗余代码

/*
 * linux/arch/arm/plat-omap/devices.c
 *
 * Common platform device setup/initialization for OMAP1 and OMAP2
 *
 * 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>
#include <asm/arch/menelaus.h>

static inline void omap_init_dsp(void) { }

/*-------------------------------------------------------------------------*/
static inline void omap_init_kp(void) {}

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

static inline void omap_init_mmc(void) {}

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

/* Numbering for the SPI-capable controllers when used for SPI:
 * spi		= 1
 * uwire	= 2
 * mmc1..2	= 3..4
 * mcbsp1..3	= 5..7
 */

static inline void omap_init_uwire(void) {}

/*-------------------------------------------------------------------------*/
static inline void omap_init_rtc(void) {}
/*-------------------------------------------------------------------------*/


#define OMAP_WDT_BASE		0x48314000

static struct resource wdt_resources[] = {
	{
		.start		= OMAP_WDT_BASE,
		.end		= OMAP_WDT_BASE + 0x4f,
		.flags		= IORESOURCE_MEM,
	},
};

static struct platform_device omap_wdt_device = {
	.name	   = "omap_wdt",
	.id	     = 2,
	.num_resources	= ARRAY_SIZE(wdt_resources),
	.resource	= wdt_resources,
};

static void omap_init_wdt(void)
{
	(void) platform_device_register(&omap_wdt_device);
}

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


#define	OMAP_RNG_BASE		0x480A0000

static struct resource rng_resources[] = {
	{
		.start		= OMAP_RNG_BASE,
		.end		= OMAP_RNG_BASE + 0x4f,
		.flags		= IORESOURCE_MEM,
	},
};

static struct platform_device omap_rng_device = {
	.name	   = "omap_rng",
	.id	     = -1,
	.num_resources	= ARRAY_SIZE(rng_resources),
	.resource	= rng_resources,
};

static void omap_init_rng(void)
{
	(void) platform_device_register(&omap_rng_device);
}

static struct platform_device omap_palkern_device = {
	.name           = "omap_palkern",
	.id             = -1,
	.num_resources	= 0,
	.resource	= NULL,
};

static void omap_init_palkern(void)
{
	(void) platform_device_register(&omap_palkern_device);
}


/*
 * 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 omap_init_devices(void)
{
	/* please keep these calls, and their implementations above,
	 * in alphabetical order so they're easier to sort through.
	 */
	omap_init_dsp();
	omap_init_kp();
	omap_init_mmc();
	omap_init_uwire();
	omap_init_wdt();
	omap_init_rng();
        omap_init_rtc();
	omap_init_palkern();
	return 0;
}
arch_initcall(omap_init_devices);