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
 27#ifndef __ASSEMBLER__
 28
 29#include <linux/delay.h>
 30#include <linux/i2c/twl.h>
 31#include <plat/common.h>
 32#include <asm/proc-fns.h>
 33
 34#ifdef CONFIG_SOC_OMAP2420
 35extern void omap242x_map_common_io(void);
 36#else
 37static inline void omap242x_map_common_io(void)
 38{
 39}
 40#endif
 41
 42#ifdef CONFIG_SOC_OMAP2430
 43extern void omap243x_map_common_io(void);
 44#else
 45static inline void omap243x_map_common_io(void)
 46{
 47}
 48#endif
 49
 50#ifdef CONFIG_ARCH_OMAP3
 51extern void omap34xx_map_common_io(void);
 52#else
 53static inline void omap34xx_map_common_io(void)
 54{
 55}
 56#endif
 57
 58#ifdef CONFIG_SOC_TI81XX
 59extern void omapti81xx_map_common_io(void);
 60#else
 61static inline void omapti81xx_map_common_io(void)
 62{
 63}
 64#endif
 65
 66#ifdef CONFIG_SOC_AM33XX
 67extern void omapam33xx_map_common_io(void);
 68#else
 69static inline void omapam33xx_map_common_io(void)
 70{
 71}
 72#endif
 73
 74#ifdef CONFIG_ARCH_OMAP4
 75extern void omap44xx_map_common_io(void);
 76#else
 77static inline void omap44xx_map_common_io(void)
 78{
 79}
 80#endif
 81
 82#if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP2)
 83int omap2_pm_init(void);
 84#else
 85static inline int omap2_pm_init(void)
 86{
 87	return 0;
 88}
 89#endif
 90
 91#if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3)
 92int omap3_pm_init(void);
 93#else
 94static inline int omap3_pm_init(void)
 95{
 96	return 0;
 97}
 98#endif
 99
100#if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP4)
101int omap4_pm_init(void);
102#else
103static inline int omap4_pm_init(void)
104{
105	return 0;
106}
107#endif
108
109#ifdef CONFIG_OMAP_MUX
110int omap_mux_late_init(void);
111#else
112static inline int omap_mux_late_init(void)
113{
114	return 0;
115}
116#endif
117
118extern void omap2_init_common_infrastructure(void);
119
120extern struct sys_timer omap2_timer;
121extern struct sys_timer omap3_timer;
122extern struct sys_timer omap3_secure_timer;
123extern struct sys_timer omap4_timer;
124
125void omap2420_init_early(void);
126void omap2430_init_early(void);
127void omap3430_init_early(void);
128void omap35xx_init_early(void);
129void omap3630_init_early(void);
130void omap3_init_early(void);	/* Do not use this one */
131void am35xx_init_early(void);
132void ti81xx_init_early(void);
133void omap4430_init_early(void);
134void omap3_init_late(void);	/* Do not use this one */
135void omap4430_init_late(void);
136void omap2420_init_late(void);
137void omap2430_init_late(void);
138void omap3430_init_late(void);
139void omap35xx_init_late(void);
140void omap3630_init_late(void);
141void am35xx_init_late(void);
142void ti81xx_init_late(void);
143void omap4430_init_late(void);
144int omap2_common_pm_late_init(void);
145void omap_prcm_restart(char, const char *);
146
147/*
148 * IO bases for various OMAP processors
149 * Except the tap base, rest all the io bases
150 * listed are physical addresses.
151 */
152struct omap_globals {
153	u32		class;		/* OMAP class to detect */
154	void __iomem	*tap;		/* Control module ID code */
155	void __iomem	*sdrc;           /* SDRAM Controller */
156	void __iomem	*sms;            /* SDRAM Memory Scheduler */
157	void __iomem	*ctrl;           /* System Control Module */
158	void __iomem	*ctrl_pad;	/* PAD Control Module */
159	void __iomem	*prm;            /* Power and Reset Management */
160	void __iomem	*cm;             /* Clock Management */
161	void __iomem	*cm2;
162	void __iomem	*prcm_mpu;
163};
164
165void omap2_set_globals_242x(void);
166void omap2_set_globals_243x(void);
167void omap2_set_globals_3xxx(void);
168void omap2_set_globals_443x(void);
169void omap2_set_globals_ti81xx(void);
170void omap2_set_globals_am33xx(void);
171
172/* These get called from omap2_set_globals_xxxx(), do not call these */
173void omap2_set_globals_tap(struct omap_globals *);
174void omap2_set_globals_sdrc(struct omap_globals *);
175void omap2_set_globals_control(struct omap_globals *);
176void omap2_set_globals_prcm(struct omap_globals *);
177
178void omap242x_map_io(void);
179void omap243x_map_io(void);
180void omap3_map_io(void);
181void am33xx_map_io(void);
182void omap4_map_io(void);
183void ti81xx_map_io(void);
184void omap_barriers_init(void);
185
186/**
187 * omap_test_timeout - busy-loop, testing a condition
188 * @cond: condition to test until it evaluates to true
189 * @timeout: maximum number of microseconds in the timeout
190 * @index: loop index (integer)
191 *
192 * Loop waiting for @cond to become true or until at least @timeout
193 * microseconds have passed.  To use, define some integer @index in the
194 * calling code.  After running, if @index == @timeout, then the loop has
195 * timed out.
196 */
197#define omap_test_timeout(cond, timeout, index)			\
198({								\
199	for (index = 0; index < timeout; index++) {		\
200		if (cond)					\
201			break;					\
202		udelay(1);					\
203	}							\
204})
205
206extern struct device *omap2_get_mpuss_device(void);
207extern struct device *omap2_get_iva_device(void);
208extern struct device *omap2_get_l3_device(void);
209extern struct device *omap4_get_dsp_device(void);
210
211void omap2_init_irq(void);
212void omap3_init_irq(void);
213void ti81xx_init_irq(void);
214extern int omap_irq_pending(void);
215void omap_intc_save_context(void);
216void omap_intc_restore_context(void);
217void omap3_intc_suspend(void);
218void omap3_intc_prepare_idle(void);
219void omap3_intc_resume_idle(void);
220void omap2_intc_handle_irq(struct pt_regs *regs);
221void omap3_intc_handle_irq(struct pt_regs *regs);
222
223#ifdef CONFIG_CACHE_L2X0
224extern void __iomem *omap4_get_l2cache_base(void);
225#endif
226
227struct device_node;
228#ifdef CONFIG_OF
229int __init omap_intc_of_init(struct device_node *node,
230			     struct device_node *parent);
231#else
232int __init omap_intc_of_init(struct device_node *node,
233			     struct device_node *parent)
234{
235	return 0;
236}
237#endif
238
239#ifdef CONFIG_SMP
240extern void __iomem *omap4_get_scu_base(void);
241#else
242static inline void __iomem *omap4_get_scu_base(void)
243{
244	return NULL;
245}
246#endif
247
248extern void __init gic_init_irq(void);
249extern void omap_smc1(u32 fn, u32 arg);
250extern void __iomem *omap4_get_sar_ram_base(void);
251extern void omap_do_wfi(void);
252
253#ifdef CONFIG_SMP
254/* Needed for secondary core boot */
255extern void omap_secondary_startup(void);
256extern u32 omap_modify_auxcoreboot0(u32 set_mask, u32 clear_mask);
257extern void omap_auxcoreboot_addr(u32 cpu_addr);
258extern u32 omap_read_auxcoreboot0(void);
259#endif
260
261#if defined(CONFIG_SMP) && defined(CONFIG_PM)
262extern int omap4_mpuss_init(void);
263extern int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state);
264extern int omap4_finish_suspend(unsigned long cpu_state);
265extern void omap4_cpu_resume(void);
266extern int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state);
267extern u32 omap4_mpuss_read_prev_context_state(void);
268#else
269static inline int omap4_enter_lowpower(unsigned int cpu,
270					unsigned int power_state)
271{
272	cpu_do_idle();
273	return 0;
274}
275
276static inline int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state)
277{
278	cpu_do_idle();
279	return 0;
280}
281
282static inline int omap4_mpuss_init(void)
283{
284	return 0;
285}
286
287static inline int omap4_finish_suspend(unsigned long cpu_state)
288{
289	return 0;
290}
291
292static inline void omap4_cpu_resume(void)
293{}
294
295static inline u32 omap4_mpuss_read_prev_context_state(void)
296{
297	return 0;
298}
299#endif
300
301struct omap_sdrc_params;
302extern void omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0,
303				      struct omap_sdrc_params *sdrc_cs1);
304struct omap2_hsmmc_info;
305extern int omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers);
306
307#endif /* __ASSEMBLER__ */
308#endif /* __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H */