1. 根目录:
2. arch
3. arm
4. mach-omap2
5. common.c

/*
 * linux/arch/arm/mach-omap2/common.c
 *
 * Code common to all OMAP2+ machines.
 *
 * Copyright (C) 2009 Texas Instruments
 * Copyright (C) 2010 Nokia Corporation
 * Tony Lindgren <tony@atomide.com>
 * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com>
 *
 * 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/clk.h>
#include <linux/io.h>

#include <plat/hardware.h>
#include <plat/board.h>
#include <plat/mux.h>
#include <plat/clock.h>

#include "iomap.h"
#include "common.h"
#include "sdrc.h"
#include "control.h"

/* Global address base setup code */

#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)

static void __init __omap2_set_globals(struct omap_globals *omap2_globals)
{
	omap2_set_globals_tap(omap2_globals);
	omap2_set_globals_sdrc(omap2_globals);
	omap2_set_globals_control(omap2_globals);
	omap2_set_globals_prcm(omap2_globals);
}

#endif

#if defined(CONFIG_SOC_OMAP2420)

static struct omap_globals omap242x_globals = {
	.class	= OMAP242X_CLASS,
	.tap	= OMAP2_L4_IO_ADDRESS(0x48014000),
	.sdrc	= OMAP2_L3_IO_ADDRESS(OMAP2420_SDRC_BASE),
	.sms	= OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE),
	.ctrl	= OMAP2_L4_IO_ADDRESS(OMAP242X_CTRL_BASE),
	.prm	= OMAP2_L4_IO_ADDRESS(OMAP2420_PRM_BASE),
	.cm	= OMAP2_L4_IO_ADDRESS(OMAP2420_CM_BASE),
};

void __init omap2_set_globals_242x(void)
{
	__omap2_set_globals(&omap242x_globals);
}

void __init omap242x_map_io(void)
{
	omap242x_map_common_io();
}
#endif

#if defined(CONFIG_SOC_OMAP2430)

static struct omap_globals omap243x_globals = {
	.class	= OMAP243X_CLASS,
	.tap	= OMAP2_L4_IO_ADDRESS(0x4900a000),
	.sdrc	= OMAP2_L3_IO_ADDRESS(OMAP243X_SDRC_BASE),
	.sms	= OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE),
	.ctrl	= OMAP2_L4_IO_ADDRESS(OMAP243X_CTRL_BASE),
	.prm	= OMAP2_L4_IO_ADDRESS(OMAP2430_PRM_BASE),
	.cm	= OMAP2_L4_IO_ADDRESS(OMAP2430_CM_BASE),
};

void __init omap2_set_globals_243x(void)
{
	__omap2_set_globals(&omap243x_globals);
}

void __init omap243x_map_io(void)
{
	omap243x_map_common_io();
}
#endif

#if defined(CONFIG_ARCH_OMAP3)

static struct omap_globals omap3_globals = {
	.class	= OMAP343X_CLASS,
	.tap	= OMAP2_L4_IO_ADDRESS(0x4830A000),
	.sdrc	= OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE),
	.sms	= OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE),
	.ctrl	= OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE),
	.prm	= OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE),
	.cm	= OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE),
};

void __init omap2_set_globals_3xxx(void)
{
	__omap2_set_globals(&omap3_globals);
}

void __init omap3_map_io(void)
{
	omap34xx_map_common_io();
}

/*
 * Adjust TAP register base such that omap3_check_revision accesses the correct
 * TI81XX register for checking device ID (it adds 0x204 to tap base while
 * TI81XX DEVICE ID register is at offset 0x600 from control base).
 */
#define TI81XX_TAP_BASE		(TI81XX_CTRL_BASE + \
				TI81XX_CONTROL_DEVICE_ID - 0x204)

static struct omap_globals ti81xx_globals = {
	.class  = OMAP343X_CLASS,
	.tap    = OMAP2_L4_IO_ADDRESS(TI81XX_TAP_BASE),
	.ctrl   = OMAP2_L4_IO_ADDRESS(TI81XX_CTRL_BASE),
	.prm    = OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE),
	.cm     = OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE),
};

void __init omap2_set_globals_ti81xx(void)
{
	__omap2_set_globals(&ti81xx_globals);
}

void __init ti81xx_map_io(void)
{
	omapti81xx_map_common_io();
}

#define AM33XX_TAP_BASE		(AM33XX_CTRL_BASE + \
				TI81XX_CONTROL_DEVICE_ID - 0x204)

static struct omap_globals am33xx_globals = {
	.class  = AM335X_CLASS,
	.tap    = AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE),
	.ctrl   = AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE),
	.prm    = AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE),
	.cm     = AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE),
};

void __init omap2_set_globals_am33xx(void)
{
	__omap2_set_globals(&am33xx_globals);
}

void __init am33xx_map_io(void)
{
	omapam33xx_map_common_io();
}
#endif

#if defined(CONFIG_ARCH_OMAP4)
static struct omap_globals omap4_globals = {
	.class	= OMAP443X_CLASS,
	.tap	= OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE),
	.ctrl	= OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE),
	.ctrl_pad	= OMAP2_L4_IO_ADDRESS(OMAP443X_CTRL_BASE),
	.prm	= OMAP2_L4_IO_ADDRESS(OMAP4430_PRM_BASE),
	.cm	= OMAP2_L4_IO_ADDRESS(OMAP4430_CM_BASE),
	.cm2	= OMAP2_L4_IO_ADDRESS(OMAP4430_CM2_BASE),
};

void __init omap2_set_globals_443x(void)
{
	omap2_set_globals_tap(&omap4_globals);
	omap2_set_globals_control(&omap4_globals);
	omap2_set_globals_prcm(&omap4_globals);
}

void __init omap4_map_io(void)
{
	omap44xx_map_common_io();
}
#endif