[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_OMAPTI816X
extern void omapti816x_map_common_io(void);
#else
static inline void omapti816x_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 ti816x_init_early(void);
void omap4430_init_early(void);

/*
 * 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_ti816x(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 omap4_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 ti816x_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);

/*
 * wfi used in low power code. Directly opcode is used instead
 * of instruction to avoid mulit-omap build break
 */
#ifdef CONFIG_THUMB2_KERNEL
#define do_wfi() __asm__ __volatile__ ("wfi" : : : "memory")
#else
#define do_wfi()			\
		__asm__ __volatile__ (".word	0xe320f003" : : : "memory")
#endif

#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);
#else
static inline int omap4_enter_lowpower(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)
{}
#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
	57	#ifdef CONFIG_SOC_OMAPTI816X
	58	extern void omapti816x_map_common_io(void);
	59	#else
	60	static inline void omapti816x_map_common_io(void)
	61	{
	62	}
	63	#endif
	64
	65	#ifdef CONFIG_ARCH_OMAP4
	66	extern void omap44xx_map_common_io(void);
	67	#else
	68	static inline void omap44xx_map_common_io(void)
	69	{
	70	}
	71	#endif
	72
	73	extern void omap2_init_common_infrastructure(void);
	74
	75	extern struct sys_timer omap2_timer;
	76	extern struct sys_timer omap3_timer;
	77	extern struct sys_timer omap3_secure_timer;
	78	extern struct sys_timer omap4_timer;
	79
	80	void omap2420_init_early(void);
	81	void omap2430_init_early(void);
	82	void omap3430_init_early(void);
	83	void omap35xx_init_early(void);
	84	void omap3630_init_early(void);
	85	void omap3_init_early(void); /* Do not use this one */
	86	void am35xx_init_early(void);
	87	void ti816x_init_early(void);
	88	void omap4430_init_early(void);
	89
	90	/*
	91	* IO bases for various OMAP processors
	92	* Except the tap base, rest all the io bases
	93	* listed are physical addresses.
	94	*/
	95	struct omap_globals {
96	u32 class; /* OMAP class to detect */
97	void __iomem tap; / Control module ID code */
98	void __iomem sdrc; / SDRAM Controller */
99	void __iomem sms; / SDRAM Memory Scheduler */
100	void __iomem ctrl; / System Control Module */
101	void __iomem ctrl_pad; / PAD Control Module */
102	void __iomem prm; / Power and Reset Management */
103	void __iomem cm; / Clock Management */
104	void __iomem *cm2;
105	};
106
107	void omap2_set_globals_242x(void);
108	void omap2_set_globals_243x(void);
109	void omap2_set_globals_3xxx(void);
110	void omap2_set_globals_443x(void);
111	void omap2_set_globals_ti816x(void);
112
113	/* These get called from omap2_set_globals_xxxx(), do not call these */
114	void omap2_set_globals_tap(struct omap_globals *);
115	void omap2_set_globals_sdrc(struct omap_globals *);
116	void omap2_set_globals_control(struct omap_globals *);
117	void omap2_set_globals_prcm(struct omap_globals *);
118
119	void omap242x_map_io(void);
120	void omap243x_map_io(void);
121	void omap3_map_io(void);
122	void omap4_map_io(void);
123
124	/**
125	* omap_test_timeout - busy-loop, testing a condition
126	* @cond: condition to test until it evaluates to true
127	* @timeout: maximum number of microseconds in the timeout
128	* @index: loop index (integer)
129	*
130	* Loop waiting for @cond to become true or until at least @timeout
131	* microseconds have passed. To use, define some integer @index in the
132	* calling code. After running, if @index == @timeout, then the loop has
133	* timed out.
134	*/
135	#define omap_test_timeout(cond, timeout, index) \
136	({ \
137	for (index = 0; index < timeout; index++) { \
138	if (cond) \
139	break; \
140	udelay(1); \
141	} \
142	})
143
144	extern struct device *omap2_get_mpuss_device(void);
145	extern struct device *omap2_get_iva_device(void);
146	extern struct device *omap2_get_l3_device(void);
147	extern struct device *omap4_get_dsp_device(void);
148
149	void omap2_init_irq(void);
150	void omap3_init_irq(void);
151	void ti816x_init_irq(void);
152	extern int omap_irq_pending(void);
153	void omap_intc_save_context(void);
154	void omap_intc_restore_context(void);
155	void omap3_intc_suspend(void);
156	void omap3_intc_prepare_idle(void);
157	void omap3_intc_resume_idle(void);
f88f4dd8 SS	158	void omap2_intc_handle_irq(struct pt_regs *regs);
f88f4dd8 SS	159	void omap3_intc_handle_irq(struct pt_regs *regs);
4e65331c TL	160
	161	/*
	162	* wfi used in low power code. Directly opcode is used instead
	163	* of instruction to avoid mulit-omap build break
	164	*/
	165	#ifdef CONFIG_THUMB2_KERNEL
	166	#define do_wfi() __asm__ __volatile__ ("wfi" : : : "memory")
	167	#else
	168	#define do_wfi() \
	169	__asm__ __volatile__ (".word 0xe320f003" : : : "memory")
	170	#endif
	171
	172	#ifdef CONFIG_CACHE_L2X0
02afe8a7 SS	173	extern void __iomem *omap4_get_l2cache_base(void);
	174	#endif
	175
	176	#ifdef CONFIG_SMP
	177	extern void __iomem *omap4_get_scu_base(void);
	178	#else
	179	static inline void __iomem *omap4_get_scu_base(void)
	180	{
	181	return NULL;
	182	}
4e65331c TL	183	#endif
4e65331c TL	184
4e65331c TL	185	extern void __init gic_init_irq(void);
4e65331c TL	186	extern void omap_smc1(u32 fn, u32 arg);
501f0c75	187	extern void __iomem *omap4_get_sar_ram_base(void);
b2b9762f	188	extern void omap_do_wfi(void);
4e65331c TL	189
	190	#ifdef CONFIG_SMP
	191	/* Needed for secondary core boot */
	192	extern void omap_secondary_startup(void);
	193	extern u32 omap_modify_auxcoreboot0(u32 set_mask, u32 clear_mask);
	194	extern void omap_auxcoreboot_addr(u32 cpu_addr);
	195	extern u32 omap_read_auxcoreboot0(void);
	196	#endif
	197
b2b9762f SS	198	#if defined(CONFIG_SMP) && defined(CONFIG_PM)
	199	extern int omap4_mpuss_init(void);
	200	extern int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state);
	201	extern int omap4_finish_suspend(unsigned long cpu_state);
	202	extern void omap4_cpu_resume(void);
	203	#else
	204	static inline int omap4_enter_lowpower(unsigned int cpu,
	205	unsigned int power_state)
	206	{
	207	cpu_do_idle();
	208	return 0;
	209	}
	210
	211	static inline int omap4_mpuss_init(void)
	212	{
	213	return 0;
	214	}
	215
	216	static inline int omap4_finish_suspend(unsigned long cpu_state)
	217	{
	218	return 0;
	219	}
	220
	221	static inline void omap4_cpu_resume(void)
	222	{}
	223	#endif
	224	#endif /* __ASSEMBLER__ */
4e65331c	225	#endif /* __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H */