[deliverable/linux.git] / arch / arm / mach-omap2 / common.h

/*
 * Header for code common to all OMAP2+ machines.
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * You should have received a copy of the  GNU General Public License along
 * with this program; if not, write  to the Free Software Foundation, Inc.,
 * 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifndef __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H
#define __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H
#ifndef __ASSEMBLER__

#include <linux/delay.h>
#include <plat/common.h>
#include <asm/proc-fns.h>

#ifdef CONFIG_SOC_OMAP2420
extern void omap242x_map_common_io(void);
#else
static inline void omap242x_map_common_io(void)
{
}
#endif

#ifdef CONFIG_SOC_OMAP2430
extern void omap243x_map_common_io(void);
#else
static inline void omap243x_map_common_io(void)
{
}
#endif

#ifdef CONFIG_ARCH_OMAP3
extern void omap34xx_map_common_io(void);
#else
static inline void omap34xx_map_common_io(void)
{
}
#endif

#ifdef CONFIG_SOC_OMAPTI81XX
extern void omapti81xx_map_common_io(void);
#else
static inline void omapti81xx_map_common_io(void)
{
}
#endif

#ifdef CONFIG_SOC_OMAPAM33XX
extern void omapam33xx_map_common_io(void);
#else
static inline void omapam33xx_map_common_io(void)
{
}
#endif

#ifdef CONFIG_ARCH_OMAP4
extern void omap44xx_map_common_io(void);
#else
static inline void omap44xx_map_common_io(void)
{
}
#endif

extern void omap2_init_common_infrastructure(void);

extern struct sys_timer omap2_timer;
extern struct sys_timer omap3_timer;
extern struct sys_timer omap3_secure_timer;
extern struct sys_timer omap4_timer;

void omap2420_init_early(void);
void omap2430_init_early(void);
void omap3430_init_early(void);
void omap35xx_init_early(void);
void omap3630_init_early(void);
void omap3_init_early(void);	/* Do not use this one */
void am35xx_init_early(void);
void ti81xx_init_early(void);
void omap4430_init_early(void);
void omap_prcm_restart(char, const char *);

/*
 * IO bases for various OMAP processors
 * Except the tap base, rest all the io bases
 * listed are physical addresses.
 */
struct omap_globals {
	u32		class;		/* OMAP class to detect */
	void __iomem	*tap;		/* Control module ID code */
	void __iomem	*sdrc;           /* SDRAM Controller */
	void __iomem	*sms;            /* SDRAM Memory Scheduler */
	void __iomem	*ctrl;           /* System Control Module */
	void __iomem	*ctrl_pad;	/* PAD Control Module */
	void __iomem	*prm;            /* Power and Reset Management */
	void __iomem	*cm;             /* Clock Management */
	void __iomem	*cm2;
};

void omap2_set_globals_242x(void);
void omap2_set_globals_243x(void);
void omap2_set_globals_3xxx(void);
void omap2_set_globals_443x(void);
void omap2_set_globals_ti81xx(void);
void omap2_set_globals_am33xx(void);

/* These get called from omap2_set_globals_xxxx(), do not call these */
void omap2_set_globals_tap(struct omap_globals *);
void omap2_set_globals_sdrc(struct omap_globals *);
void omap2_set_globals_control(struct omap_globals *);
void omap2_set_globals_prcm(struct omap_globals *);

void omap242x_map_io(void);
void omap243x_map_io(void);
void omap3_map_io(void);
void am33xx_map_io(void);
void omap4_map_io(void);
void ti81xx_map_io(void);

/**
 * omap_test_timeout - busy-loop, testing a condition
 * @cond: condition to test until it evaluates to true
 * @timeout: maximum number of microseconds in the timeout
 * @index: loop index (integer)
 *
 * Loop waiting for @cond to become true or until at least @timeout
 * microseconds have passed.  To use, define some integer @index in the
 * calling code.  After running, if @index == @timeout, then the loop has
 * timed out.
 */
#define omap_test_timeout(cond, timeout, index)			\
({								\
	for (index = 0; index < timeout; index++) {		\
		if (cond)					\
			break;					\
		udelay(1);					\
	}							\
})

extern struct device *omap2_get_mpuss_device(void);
extern struct device *omap2_get_iva_device(void);
extern struct device *omap2_get_l3_device(void);
extern struct device *omap4_get_dsp_device(void);

void omap2_init_irq(void);
void omap3_init_irq(void);
void ti81xx_init_irq(void);
extern int omap_irq_pending(void);
void omap_intc_save_context(void);
void omap_intc_restore_context(void);
void omap3_intc_suspend(void);
void omap3_intc_prepare_idle(void);
void omap3_intc_resume_idle(void);
void omap2_intc_handle_irq(struct pt_regs *regs);
void omap3_intc_handle_irq(struct pt_regs *regs);

#ifdef CONFIG_CACHE_L2X0
extern void __iomem *omap4_get_l2cache_base(void);
#endif

#ifdef CONFIG_SMP
extern void __iomem *omap4_get_scu_base(void);
#else
static inline void __iomem *omap4_get_scu_base(void)
{
	return NULL;
}
#endif

extern void __init gic_init_irq(void);
extern void omap_smc1(u32 fn, u32 arg);
extern void __iomem *omap4_get_sar_ram_base(void);
extern void omap_do_wfi(void);

#ifdef CONFIG_SMP
/* Needed for secondary core boot */
extern void omap_secondary_startup(void);
extern u32 omap_modify_auxcoreboot0(u32 set_mask, u32 clear_mask);
extern void omap_auxcoreboot_addr(u32 cpu_addr);
extern u32 omap_read_auxcoreboot0(void);
#endif

#if defined(CONFIG_SMP) && defined(CONFIG_PM)
extern int omap4_mpuss_init(void);
extern int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state);
extern int omap4_finish_suspend(unsigned long cpu_state);
extern void omap4_cpu_resume(void);
extern int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state);
extern u32 omap4_mpuss_read_prev_context_state(void);
#else
static inline int omap4_enter_lowpower(unsigned int cpu,
					unsigned int power_state)
{
	cpu_do_idle();
	return 0;
}

static inline int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state)
{
	cpu_do_idle();
	return 0;
}

static inline int omap4_mpuss_init(void)
{
	return 0;
}

static inline int omap4_finish_suspend(unsigned long cpu_state)
{
	return 0;
}

static inline void omap4_cpu_resume(void)
{}

static inline u32 omap4_mpuss_read_prev_context_state(void)
{
	return 0;
}
#endif
#endif /* __ASSEMBLER__ */
#endif /* __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H */
Commit	Line	Data
4e65331c TL	1	/*
	2	* Header for code common to all OMAP2+ machines.
	3	*
	4	* This program is free software; you can redistribute it and/or modify it
	5	* under the terms of the GNU General Public License as published by the
	6	* Free Software Foundation; either version 2 of the License, or (at your
	7	* option) any later version.
	8	*
	9	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
	10	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
	11	* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
	12	* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
	13	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	14	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
	15	* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
	16	* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	17	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
	18	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	19	*
	20	* You should have received a copy of the GNU General Public License along
	21	* with this program; if not, write to the Free Software Foundation, Inc.,
	22	* 675 Mass Ave, Cambridge, MA 02139, USA.
	23	*/
	24
	25	#ifndef __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H
	26	#define __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H
b2b9762f	27	#ifndef __ASSEMBLER__
4e65331c TL	28
	29	#include <linux/delay.h>
	30	#include <plat/common.h>
b2b9762f	31	#include <asm/proc-fns.h>
4e65331c TL	32
	33	#ifdef CONFIG_SOC_OMAP2420
	34	extern void omap242x_map_common_io(void);
	35	#else
	36	static inline void omap242x_map_common_io(void)
	37	{
	38	}
	39	#endif
	40
	41	#ifdef CONFIG_SOC_OMAP2430
	42	extern void omap243x_map_common_io(void);
	43	#else
	44	static inline void omap243x_map_common_io(void)
	45	{
	46	}
	47	#endif
	48
	49	#ifdef CONFIG_ARCH_OMAP3
	50	extern void omap34xx_map_common_io(void);
	51	#else
	52	static inline void omap34xx_map_common_io(void)
	53	{
	54	}
	55	#endif
	56
a920360f HP	57	#ifdef CONFIG_SOC_OMAPTI81XX
a920360f HP	58	extern void omapti81xx_map_common_io(void);
4e65331c	59	#else
a920360f	60	static inline void omapti81xx_map_common_io(void)
4e65331c TL	61	{
	62	}
	63	#endif
	64
1e6cb146 AM	65	#ifdef CONFIG_SOC_OMAPAM33XX
	66	extern void omapam33xx_map_common_io(void);
	67	#else
	68	static inline void omapam33xx_map_common_io(void)
	69	{
	70	}
	71	#endif
	72
4e65331c TL	73	#ifdef CONFIG_ARCH_OMAP4
	74	extern void omap44xx_map_common_io(void);
	75	#else
	76	static inline void omap44xx_map_common_io(void)
	77	{
	78	}
	79	#endif
	80
	81	extern void omap2_init_common_infrastructure(void);
	82
	83	extern struct sys_timer omap2_timer;
	84	extern struct sys_timer omap3_timer;
	85	extern struct sys_timer omap3_secure_timer;
	86	extern struct sys_timer omap4_timer;
	87
	88	void omap2420_init_early(void);
	89	void omap2430_init_early(void);
	90	void omap3430_init_early(void);
	91	void omap35xx_init_early(void);
	92	void omap3630_init_early(void);
	93	void omap3_init_early(void); /* Do not use this one */
	94	void am35xx_init_early(void);
a920360f	95	void ti81xx_init_early(void);
4e65331c	96	void omap4430_init_early(void);
baa95883	97	void omap_prcm_restart(char, const char *);
4e65331c TL	98
	99	/*
	100	* IO bases for various OMAP processors
	101	* Except the tap base, rest all the io bases
	102	* listed are physical addresses.
	103	*/
	104	struct omap_globals {
	105	u32 class; /* OMAP class to detect */
	106	void __iomem tap; / Control module ID code */
	107	void __iomem sdrc; / SDRAM Controller */
	108	void __iomem sms; / SDRAM Memory Scheduler */
	109	void __iomem ctrl; / System Control Module */
	110	void __iomem ctrl_pad; / PAD Control Module */
	111	void __iomem prm; / Power and Reset Management */
	112	void __iomem cm; / Clock Management */
	113	void __iomem *cm2;
	114	};
	115
	116	void omap2_set_globals_242x(void);
	117	void omap2_set_globals_243x(void);
	118	void omap2_set_globals_3xxx(void);
	119	void omap2_set_globals_443x(void);
a920360f	120	void omap2_set_globals_ti81xx(void);
1e6cb146	121	void omap2_set_globals_am33xx(void);
4e65331c TL	122
	123	/* These get called from omap2_set_globals_xxxx(), do not call these */
	124	void omap2_set_globals_tap(struct omap_globals *);
	125	void omap2_set_globals_sdrc(struct omap_globals *);
	126	void omap2_set_globals_control(struct omap_globals *);
	127	void omap2_set_globals_prcm(struct omap_globals *);
	128
	129	void omap242x_map_io(void);
	130	void omap243x_map_io(void);
	131	void omap3_map_io(void);
1e6cb146	132	void am33xx_map_io(void);
4e65331c	133	void omap4_map_io(void);
a920360f	134	void ti81xx_map_io(void);
4e65331c TL	135
	136	/**
	137	* omap_test_timeout - busy-loop, testing a condition
	138	* @cond: condition to test until it evaluates to true
	139	* @timeout: maximum number of microseconds in the timeout
	140	* @index: loop index (integer)
	141	*
	142	* Loop waiting for @cond to become true or until at least @timeout
	143	* microseconds have passed. To use, define some integer @index in the
	144	* calling code. After running, if @index == @timeout, then the loop has
	145	* timed out.
	146	*/
	147	#define omap_test_timeout(cond, timeout, index) \
	148	({ \
	149	for (index = 0; index < timeout; index++) { \
	150	if (cond) \
	151	break; \
	152	udelay(1); \
	153	} \
	154	})
	155
	156	extern struct device *omap2_get_mpuss_device(void);
	157	extern struct device *omap2_get_iva_device(void);
	158	extern struct device *omap2_get_l3_device(void);
	159	extern struct device *omap4_get_dsp_device(void);
	160
	161	void omap2_init_irq(void);
	162	void omap3_init_irq(void);
a920360f	163	void ti81xx_init_irq(void);
4e65331c TL	164	extern int omap_irq_pending(void);
	165	void omap_intc_save_context(void);
	166	void omap_intc_restore_context(void);
	167	void omap3_intc_suspend(void);
	168	void omap3_intc_prepare_idle(void);
	169	void omap3_intc_resume_idle(void);
f88f4dd8 SS	170	void omap2_intc_handle_irq(struct pt_regs *regs);
f88f4dd8 SS	171	void omap3_intc_handle_irq(struct pt_regs *regs);
4e65331c	172
4e65331c	173	#ifdef CONFIG_CACHE_L2X0
02afe8a7	174	extern void __iomem *omap4_get_l2cache_base(void);
4e65331c TL	175	#endif
4e65331c TL	176
02afe8a7 SS	177	#ifdef CONFIG_SMP
	178	extern void __iomem *omap4_get_scu_base(void);
	179	#else
	180	static inline void __iomem *omap4_get_scu_base(void)
	181	{
	182	return NULL;
	183	}
4e65331c TL	184	#endif
4e65331c TL	185
4e65331c TL	186	extern void __init gic_init_irq(void);
4e65331c TL	187	extern void omap_smc1(u32 fn, u32 arg);
501f0c75	188	extern void __iomem *omap4_get_sar_ram_base(void);
b2b9762f	189	extern void omap_do_wfi(void);
4e65331c TL	190
	191	#ifdef CONFIG_SMP
	192	/* Needed for secondary core boot */
	193	extern void omap_secondary_startup(void);
	194	extern u32 omap_modify_auxcoreboot0(u32 set_mask, u32 clear_mask);
	195	extern void omap_auxcoreboot_addr(u32 cpu_addr);
	196	extern u32 omap_read_auxcoreboot0(void);
	197	#endif
	198
b2b9762f SS	199	#if defined(CONFIG_SMP) && defined(CONFIG_PM)
	200	extern int omap4_mpuss_init(void);
	201	extern int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state);
	202	extern int omap4_finish_suspend(unsigned long cpu_state);
	203	extern void omap4_cpu_resume(void);
b5b4f288	204	extern int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state);
3ba2a739	205	extern u32 omap4_mpuss_read_prev_context_state(void);
b2b9762f SS	206	#else
	207	static inline int omap4_enter_lowpower(unsigned int cpu,
	208	unsigned int power_state)
	209	{
	210	cpu_do_idle();
	211	return 0;
	212	}
	213
b5b4f288 SS	214	static inline int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state)
	215	{
	216	cpu_do_idle();
	217	return 0;
	218	}
	219
b2b9762f SS	220	static inline int omap4_mpuss_init(void)
	221	{
	222	return 0;
	223	}
	224
	225	static inline int omap4_finish_suspend(unsigned long cpu_state)
	226	{
	227	return 0;
	228	}
	229
	230	static inline void omap4_cpu_resume(void)
	231	{}
3ba2a739 SS	232
	233	static inline u32 omap4_mpuss_read_prev_context_state(void)
	234	{
	235	return 0;
	236	}
b2b9762f SS	237	#endif
b2b9762f SS	238	#endif /* __ASSEMBLER__ */
4e65331c	239	#endif /* __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H */