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Linux/arch/arm/mach-omap2/common.h

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  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/irq.h>
 30 #include <linux/delay.h>
 31 #include <linux/i2c.h>
 32 #include <linux/i2c/twl.h>
 33 #include <linux/i2c-omap.h>
 34 #include <linux/reboot.h>
 35 
 36 #include <asm/proc-fns.h>
 37 
 38 #include "i2c.h"
 39 #include "serial.h"
 40 
 41 #include "usb.h"
 42 
 43 #define OMAP_INTC_START         NR_IRQS
 44 
 45 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP2)
 46 int omap2_pm_init(void);
 47 #else
 48 static inline int omap2_pm_init(void)
 49 {
 50         return 0;
 51 }
 52 #endif
 53 
 54 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3)
 55 int omap3_pm_init(void);
 56 #else
 57 static inline int omap3_pm_init(void)
 58 {
 59         return 0;
 60 }
 61 #endif
 62 
 63 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP4)
 64 int omap4_pm_init(void);
 65 int omap4_pm_init_early(void);
 66 #else
 67 static inline int omap4_pm_init(void)
 68 {
 69         return 0;
 70 }
 71 
 72 static inline int omap4_pm_init_early(void)
 73 {
 74         return 0;
 75 }
 76 #endif
 77 
 78 #ifdef CONFIG_OMAP_MUX
 79 int omap_mux_late_init(void);
 80 #else
 81 static inline int omap_mux_late_init(void)
 82 {
 83         return 0;
 84 }
 85 #endif
 86 
 87 extern void omap2_init_common_infrastructure(void);
 88 
 89 extern void omap2_sync32k_timer_init(void);
 90 extern void omap3_sync32k_timer_init(void);
 91 extern void omap3_secure_sync32k_timer_init(void);
 92 extern void omap3_gptimer_timer_init(void);
 93 extern void omap4_local_timer_init(void);
 94 extern void omap5_realtime_timer_init(void);
 95 
 96 void omap2420_init_early(void);
 97 void omap2430_init_early(void);
 98 void omap3430_init_early(void);
 99 void omap35xx_init_early(void);
100 void omap3630_init_early(void);
101 void omap3_init_early(void);    /* Do not use this one */
102 void am33xx_init_early(void);
103 void am35xx_init_early(void);
104 void ti81xx_init_early(void);
105 void am33xx_init_early(void);
106 void am43xx_init_early(void);
107 void am43xx_init_late(void);
108 void omap4430_init_early(void);
109 void omap5_init_early(void);
110 void omap3_init_late(void);     /* Do not use this one */
111 void omap4430_init_late(void);
112 void omap2420_init_late(void);
113 void omap2430_init_late(void);
114 void omap3430_init_late(void);
115 void omap35xx_init_late(void);
116 void omap3630_init_late(void);
117 void am35xx_init_late(void);
118 void ti81xx_init_late(void);
119 void am33xx_init_late(void);
120 void omap5_init_late(void);
121 int omap2_common_pm_late_init(void);
122 void dra7xx_init_early(void);
123 void dra7xx_init_late(void);
124 
125 #ifdef CONFIG_SOC_BUS
126 void omap_soc_device_init(void);
127 #else
128 static inline void omap_soc_device_init(void)
129 {
130 }
131 #endif
132 
133 #if defined(CONFIG_SOC_OMAP2420) || defined(CONFIG_SOC_OMAP2430)
134 void omap2xxx_restart(enum reboot_mode mode, const char *cmd);
135 #else
136 static inline void omap2xxx_restart(enum reboot_mode mode, const char *cmd)
137 {
138 }
139 #endif
140 
141 #ifdef CONFIG_SOC_AM33XX
142 void am33xx_restart(enum reboot_mode mode, const char *cmd);
143 #else
144 static inline void am33xx_restart(enum reboot_mode mode, const char *cmd)
145 {
146 }
147 #endif
148 
149 #ifdef CONFIG_ARCH_OMAP3
150 void omap3xxx_restart(enum reboot_mode mode, const char *cmd);
151 #else
152 static inline void omap3xxx_restart(enum reboot_mode mode, const char *cmd)
153 {
154 }
155 #endif
156 
157 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
158 void omap44xx_restart(enum reboot_mode mode, const char *cmd);
159 #else
160 static inline void omap44xx_restart(enum reboot_mode mode, const char *cmd)
161 {
162 }
163 #endif
164 
165 /* This gets called from mach-omap2/io.c, do not call this */
166 void __init omap2_set_globals_tap(u32 class, void __iomem *tap);
167 
168 void __init omap242x_map_io(void);
169 void __init omap243x_map_io(void);
170 void __init omap3_map_io(void);
171 void __init am33xx_map_io(void);
172 void __init omap4_map_io(void);
173 void __init omap5_map_io(void);
174 void __init ti81xx_map_io(void);
175 
176 /* omap_barriers_init() is OMAP4 only */
177 void omap_barriers_init(void);
178 
179 /**
180  * omap_test_timeout - busy-loop, testing a condition
181  * @cond: condition to test until it evaluates to true
182  * @timeout: maximum number of microseconds in the timeout
183  * @index: loop index (integer)
184  *
185  * Loop waiting for @cond to become true or until at least @timeout
186  * microseconds have passed.  To use, define some integer @index in the
187  * calling code.  After running, if @index == @timeout, then the loop has
188  * timed out.
189  */
190 #define omap_test_timeout(cond, timeout, index)                 \
191 ({                                                              \
192         for (index = 0; index < timeout; index++) {             \
193                 if (cond)                                       \
194                         break;                                  \
195                 udelay(1);                                      \
196         }                                                       \
197 })
198 
199 extern struct device *omap2_get_mpuss_device(void);
200 extern struct device *omap2_get_iva_device(void);
201 extern struct device *omap2_get_l3_device(void);
202 extern struct device *omap4_get_dsp_device(void);
203 
204 void omap2_init_irq(void);
205 void omap3_init_irq(void);
206 void ti81xx_init_irq(void);
207 extern int omap_irq_pending(void);
208 void omap_intc_save_context(void);
209 void omap_intc_restore_context(void);
210 void omap3_intc_suspend(void);
211 void omap3_intc_prepare_idle(void);
212 void omap3_intc_resume_idle(void);
213 void omap2_intc_handle_irq(struct pt_regs *regs);
214 void omap3_intc_handle_irq(struct pt_regs *regs);
215 void omap_intc_of_init(void);
216 void omap_gic_of_init(void);
217 
218 #ifdef CONFIG_CACHE_L2X0
219 extern void __iomem *omap4_get_l2cache_base(void);
220 #endif
221 
222 struct device_node;
223 #ifdef CONFIG_OF
224 int __init intc_of_init(struct device_node *node,
225                              struct device_node *parent);
226 #else
227 int __init intc_of_init(struct device_node *node,
228                              struct device_node *parent)
229 {
230         return 0;
231 }
232 #endif
233 
234 #ifdef CONFIG_SMP
235 extern void __iomem *omap4_get_scu_base(void);
236 #else
237 static inline void __iomem *omap4_get_scu_base(void)
238 {
239         return NULL;
240 }
241 #endif
242 
243 extern void __init gic_init_irq(void);
244 extern void gic_dist_disable(void);
245 extern void gic_dist_enable(void);
246 extern bool gic_dist_disabled(void);
247 extern void gic_timer_retrigger(void);
248 extern void omap_smc1(u32 fn, u32 arg);
249 extern void __iomem *omap4_get_sar_ram_base(void);
250 extern void omap_do_wfi(void);
251 
252 #ifdef CONFIG_SMP
253 /* Needed for secondary core boot */
254 extern void omap4_secondary_startup(void);
255 extern void omap4460_secondary_startup(void);
256 extern u32 omap_modify_auxcoreboot0(u32 set_mask, u32 clear_mask);
257 extern void omap_auxcoreboot_addr(u32 cpu_addr);
258 extern u32 omap_read_auxcoreboot0(void);
259 
260 extern void omap4_cpu_die(unsigned int cpu);
261 
262 extern struct smp_operations omap4_smp_ops;
263 
264 extern void omap5_secondary_startup(void);
265 #endif
266 
267 #if defined(CONFIG_SMP) && defined(CONFIG_PM)
268 extern int omap4_mpuss_init(void);
269 extern int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state);
270 extern int omap4_finish_suspend(unsigned long cpu_state);
271 extern void omap4_cpu_resume(void);
272 extern int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state);
273 #else
274 static inline int omap4_enter_lowpower(unsigned int cpu,
275                                         unsigned int power_state)
276 {
277         cpu_do_idle();
278         return 0;
279 }
280 
281 static inline int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state)
282 {
283         cpu_do_idle();
284         return 0;
285 }
286 
287 static inline int omap4_mpuss_init(void)
288 {
289         return 0;
290 }
291 
292 static inline int omap4_finish_suspend(unsigned long cpu_state)
293 {
294         return 0;
295 }
296 
297 static inline void omap4_cpu_resume(void)
298 {}
299 
300 #endif
301 
302 void pdata_quirks_init(struct of_device_id *);
303 void omap_auxdata_legacy_init(struct device *dev);
304 void omap_pcs_legacy_init(int irq, void (*rearm)(void));
305 
306 struct omap_sdrc_params;
307 extern void omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0,
308                                       struct omap_sdrc_params *sdrc_cs1);
309 struct omap2_hsmmc_info;
310 extern void omap_reserve(void);
311 
312 struct omap_hwmod;
313 extern int omap_dss_reset(struct omap_hwmod *);
314 
315 /* SoC specific clock initializer */
316 int omap_clk_init(void);
317 
318 int __init omapdss_init_of(void);
319 void __init omapdss_early_init_of(void);
320 
321 #endif /* __ASSEMBLER__ */
322 #endif /* __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H */
323 

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