arch/arm/mach-omap2/common.h

   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
  35 #include <asm/proc-fns.h>
  36
  37 #include <plat/cpu.h>
  38 #include <plat/serial.h>
  39
  40 #include "../plat-omap/common.h"
  41
  42 #include "i2c.h"
  43
  44 #define OMAP_INTC_START         NR_IRQS
  45
  46 #ifdef CONFIG_SOC_OMAP2420
  47 extern void omap242x_map_common_io(void);
  48 #else
  49 static inline void omap242x_map_common_io(void)
  50 {
  51 }
  52 #endif
  53
  54 #ifdef CONFIG_SOC_OMAP2430
  55 extern void omap243x_map_common_io(void);
  56 #else
  57 static inline void omap243x_map_common_io(void)
  58 {
  59 }
  60 #endif
  61
  62 #ifdef CONFIG_ARCH_OMAP3
  63 extern void omap34xx_map_common_io(void);
  64 #else
  65 static inline void omap34xx_map_common_io(void)
  66 {
  67 }
  68 #endif
  69
  70 #ifdef CONFIG_SOC_TI81XX
  71 extern void omapti81xx_map_common_io(void);
  72 #else
  73 static inline void omapti81xx_map_common_io(void)
  74 {
  75 }
  76 #endif
  77
  78 #ifdef CONFIG_SOC_AM33XX
  79 extern void omapam33xx_map_common_io(void);
  80 #else
  81 static inline void omapam33xx_map_common_io(void)
  82 {
  83 }
  84 #endif
  85
  86 #ifdef CONFIG_ARCH_OMAP4
  87 extern void omap44xx_map_common_io(void);
  88 #else
  89 static inline void omap44xx_map_common_io(void)
  90 {
  91 }
  92 #endif
  93
  94 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP2)
  95 int omap2_pm_init(void);
  96 #else
  97 static inline int omap2_pm_init(void)
  98 {
  99         return 0;
 100 }
 101 #endif
 102
 103 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3)
 104 int omap3_pm_init(void);
 105 #else
 106 static inline int omap3_pm_init(void)
 107 {
 108         return 0;
 109 }
 110 #endif
 111
 112 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP4)
 113 int omap4_pm_init(void);
 114 #else
 115 static inline int omap4_pm_init(void)
 116 {
 117         return 0;
 118 }
 119 #endif
 120
 121 #ifdef CONFIG_OMAP_MUX
 122 int omap_mux_late_init(void);
 123 #else
 124 static inline int omap_mux_late_init(void)
 125 {
 126         return 0;
 127 }
 128 #endif
 129
 130 #ifdef CONFIG_SOC_OMAP5
 131 extern void omap5_map_common_io(void);
 132 #else
 133 static inline void omap5_map_common_io(void)
 134 {
 135 }
 136 #endif
 137
 138 extern void omap2_init_common_infrastructure(void);
 139
 140 extern struct sys_timer omap2_timer;
 141 extern struct sys_timer omap3_timer;
 142 extern struct sys_timer omap3_secure_timer;
 143 extern struct sys_timer omap3_am33xx_timer;
 144 extern struct sys_timer omap4_timer;
 145 extern struct sys_timer omap5_timer;
 146
 147 void omap2420_init_early(void);
 148 void omap2430_init_early(void);
 149 void omap3430_init_early(void);
 150 void omap35xx_init_early(void);
 151 void omap3630_init_early(void);
 152 void omap3_init_early(void);    /* Do not use this one */
 153 void am33xx_init_early(void);
 154 void am35xx_init_early(void);
 155 void ti81xx_init_early(void);
 156 void am33xx_init_early(void);
 157 void omap4430_init_early(void);
 158 void omap5_init_early(void);
 159 void omap3_init_late(void);     /* Do not use this one */
 160 void omap4430_init_late(void);
 161 void omap2420_init_late(void);
 162 void omap2430_init_late(void);
 163 void omap3430_init_late(void);
 164 void omap35xx_init_late(void);
 165 void omap3630_init_late(void);
 166 void am35xx_init_late(void);
 167 void ti81xx_init_late(void);
 168 void omap4430_init_late(void);
 169 int omap2_common_pm_late_init(void);
 170 void omap_prcm_restart(char, const char *);
 171
 172 /*
 173  * IO bases for various OMAP processors
 174  * Except the tap base, rest all the io bases
 175  * listed are physical addresses.
 176  */
 177 struct omap_globals {
 178         u32             class;          /* OMAP class to detect */
 179         void __iomem    *tap;           /* Control module ID code */
 180         void __iomem    *sdrc;           /* SDRAM Controller */
 181         void __iomem    *sms;            /* SDRAM Memory Scheduler */
 182         void __iomem    *ctrl;           /* System Control Module */
 183         void __iomem    *ctrl_pad;      /* PAD Control Module */
 184         void __iomem    *prm;            /* Power and Reset Management */
 185         void __iomem    *cm;             /* Clock Management */
 186         void __iomem    *cm2;
 187         void __iomem    *prcm_mpu;
 188 };
 189
 190 void omap2_set_globals_242x(void);
 191 void omap2_set_globals_243x(void);
 192 void omap2_set_globals_3xxx(void);
 193 void omap2_set_globals_443x(void);
 194 void omap2_set_globals_5xxx(void);
 195 void omap2_set_globals_ti81xx(void);
 196 void omap2_set_globals_am33xx(void);
 197
 198 /* These get called from omap2_set_globals_xxxx(), do not call these */
 199 void omap2_set_globals_tap(struct omap_globals *);
 200 #if defined(CONFIG_SOC_HAS_OMAP2_SDRC)
 201 void omap2_set_globals_sdrc(struct omap_globals *);
 202 #else
 203 static inline void omap2_set_globals_sdrc(struct omap_globals *omap2_globals)
 204 { }
 205 #endif
 206 void omap2_set_globals_control(struct omap_globals *);
 207 void omap2_set_globals_prcm(struct omap_globals *);
 208
 209 void omap242x_map_io(void);
 210 void omap243x_map_io(void);
 211 void omap3_map_io(void);
 212 void am33xx_map_io(void);
 213 void omap4_map_io(void);
 214 void omap5_map_io(void);
 215 void ti81xx_map_io(void);
 216 void omap_barriers_init(void);
 217
 218 /**
 219  * omap_test_timeout - busy-loop, testing a condition
 220  * @cond: condition to test until it evaluates to true
 221  * @timeout: maximum number of microseconds in the timeout
 222  * @index: loop index (integer)
 223  *
 224  * Loop waiting for @cond to become true or until at least @timeout
 225  * microseconds have passed.  To use, define some integer @index in the
 226  * calling code.  After running, if @index == @timeout, then the loop has
 227  * timed out.
 228  */
 229 #define omap_test_timeout(cond, timeout, index)                 \
 230 ({                                                              \
 231         for (index = 0; index < timeout; index++) {             \
 232                 if (cond)                                       \
 233                         break;                                  \
 234                 udelay(1);                                      \
 235         }                                                       \
 236 })
 237
 238 extern struct device *omap2_get_mpuss_device(void);
 239 extern struct device *omap2_get_iva_device(void);
 240 extern struct device *omap2_get_l3_device(void);
 241 extern struct device *omap4_get_dsp_device(void);
 242
 243 void omap2_init_irq(void);
 244 void omap3_init_irq(void);
 245 void ti81xx_init_irq(void);
 246 extern int omap_irq_pending(void);
 247 void omap_intc_save_context(void);
 248 void omap_intc_restore_context(void);
 249 void omap3_intc_suspend(void);
 250 void omap3_intc_prepare_idle(void);
 251 void omap3_intc_resume_idle(void);
 252 void omap2_intc_handle_irq(struct pt_regs *regs);
 253 void omap3_intc_handle_irq(struct pt_regs *regs);
 254 void omap_intc_of_init(void);
 255 void omap_gic_of_init(void);
 256
 257 #ifdef CONFIG_CACHE_L2X0
 258 extern void __iomem *omap4_get_l2cache_base(void);
 259 #endif
 260
 261 struct device_node;
 262 #ifdef CONFIG_OF
 263 int __init intc_of_init(struct device_node *node,
 264                              struct device_node *parent);
 265 #else
 266 int __init intc_of_init(struct device_node *node,
 267                              struct device_node *parent)
 268 {
 269         return 0;
 270 }
 271 #endif
 272
 273 #ifdef CONFIG_SMP
 274 extern void __iomem *omap4_get_scu_base(void);
 275 #else
 276 static inline void __iomem *omap4_get_scu_base(void)
 277 {
 278         return NULL;
 279 }
 280 #endif
 281
 282 extern void __init gic_init_irq(void);
 283 extern void omap_smc1(u32 fn, u32 arg);
 284 extern void __iomem *omap4_get_sar_ram_base(void);
 285 extern void omap_do_wfi(void);
 286
 287 #ifdef CONFIG_SMP
 288 /* Needed for secondary core boot */
 289 extern void omap_secondary_startup(void);
 290 extern u32 omap_modify_auxcoreboot0(u32 set_mask, u32 clear_mask);
 291 extern void omap_auxcoreboot_addr(u32 cpu_addr);
 292 extern u32 omap_read_auxcoreboot0(void);
 293
 294 extern void omap4_cpu_die(unsigned int cpu);
 295
 296 extern struct smp_operations omap4_smp_ops;
 297
 298 extern void omap5_secondary_startup(void);
 299 #endif
 300
 301 #if defined(CONFIG_SMP) && defined(CONFIG_PM)
 302 extern int omap4_mpuss_init(void);
 303 extern int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state);
 304 extern int omap4_finish_suspend(unsigned long cpu_state);
 305 extern void omap4_cpu_resume(void);
 306 extern int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state);
 307 extern u32 omap4_mpuss_read_prev_context_state(void);
 308 #else
 309 static inline int omap4_enter_lowpower(unsigned int cpu,
 310                                         unsigned int power_state)
 311 {
 312         cpu_do_idle();
 313         return 0;
 314 }
 315
 316 static inline int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state)
 317 {
 318         cpu_do_idle();
 319         return 0;
 320 }
 321
 322 static inline int omap4_mpuss_init(void)
 323 {
 324         return 0;
 325 }
 326
 327 static inline int omap4_finish_suspend(unsigned long cpu_state)
 328 {
 329         return 0;
 330 }
 331
 332 static inline void omap4_cpu_resume(void)
 333 {}
 334
 335 static inline u32 omap4_mpuss_read_prev_context_state(void)
 336 {
 337         return 0;
 338 }
 339 #endif
 340
 341 struct omap_sdrc_params;
 342 extern void omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0,
 343                                       struct omap_sdrc_params *sdrc_cs1);
 344 struct omap2_hsmmc_info;
 345 extern int omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers);
 346 extern void omap_reserve(void);
 347
 348 #endif /* __ASSEMBLER__ */
 349 #endif /* __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H */