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/delay.h>
  30 #include <linux/i2c/twl.h>
  31 #include <plat/common.h>
  32 #include <asm/proc-fns.h>
  33
  34 #define OMAP_INTC_START         0
  35
  36 #ifdef CONFIG_SOC_OMAP2420
  37 extern void omap242x_map_common_io(void);
  38 #else
  39 static inline void omap242x_map_common_io(void)
  40 {
  41 }
  42 #endif
  43
  44 #ifdef CONFIG_SOC_OMAP2430
  45 extern void omap243x_map_common_io(void);
  46 #else
  47 static inline void omap243x_map_common_io(void)
  48 {
  49 }
  50 #endif
  51
  52 #ifdef CONFIG_ARCH_OMAP3
  53 extern void omap34xx_map_common_io(void);
  54 #else
  55 static inline void omap34xx_map_common_io(void)
  56 {
  57 }
  58 #endif
  59
  60 #ifdef CONFIG_SOC_TI81XX
  61 extern void omapti81xx_map_common_io(void);
  62 #else
  63 static inline void omapti81xx_map_common_io(void)
  64 {
  65 }
  66 #endif
  67
  68 #ifdef CONFIG_SOC_AM33XX
  69 extern void omapam33xx_map_common_io(void);
  70 #else
  71 static inline void omapam33xx_map_common_io(void)
  72 {
  73 }
  74 #endif
  75
  76 #ifdef CONFIG_ARCH_OMAP4
  77 extern void omap44xx_map_common_io(void);
  78 #else
  79 static inline void omap44xx_map_common_io(void)
  80 {
  81 }
  82 #endif
  83
  84 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP2)
  85 int omap2_pm_init(void);
  86 #else
  87 static inline int omap2_pm_init(void)
  88 {
  89         return 0;
  90 }
  91 #endif
  92
  93 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3)
  94 int omap3_pm_init(void);
  95 #else
  96 static inline int omap3_pm_init(void)
  97 {
  98         return 0;
  99 }
 100 #endif
 101
 102 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP4)
 103 int omap4_pm_init(void);
 104 #else
 105 static inline int omap4_pm_init(void)
 106 {
 107         return 0;
 108 }
 109 #endif
 110
 111 #ifdef CONFIG_OMAP_MUX
 112 int omap_mux_late_init(void);
 113 #else
 114 static inline int omap_mux_late_init(void)
 115 {
 116         return 0;
 117 }
 118 #endif
 119
 120 #ifdef CONFIG_SOC_OMAP5
 121 extern void omap5_map_common_io(void);
 122 #else
 123 static inline void omap5_map_common_io(void)
 124 {
 125 }
 126 #endif
 127
 128 extern void omap2_init_common_infrastructure(void);
 129
 130 extern struct sys_timer omap2_timer;
 131 extern struct sys_timer omap3_timer;
 132 extern struct sys_timer omap3_secure_timer;
 133 extern struct sys_timer omap3_am33xx_timer;
 134 extern struct sys_timer omap4_timer;
 135 extern struct sys_timer omap5_timer;
 136
 137 void omap2420_init_early(void);
 138 void omap2430_init_early(void);
 139 void omap3430_init_early(void);
 140 void omap35xx_init_early(void);
 141 void omap3630_init_early(void);
 142 void omap3_init_early(void);    /* Do not use this one */
 143 void am33xx_init_early(void);
 144 void am35xx_init_early(void);
 145 void ti81xx_init_early(void);
 146 void am33xx_init_early(void);
 147 void omap4430_init_early(void);
 148 void omap5_init_early(void);
 149 void omap3_init_late(void);     /* Do not use this one */
 150 void omap4430_init_late(void);
 151 void omap2420_init_late(void);
 152 void omap2430_init_late(void);
 153 void omap3430_init_late(void);
 154 void omap35xx_init_late(void);
 155 void omap3630_init_late(void);
 156 void am35xx_init_late(void);
 157 void ti81xx_init_late(void);
 158 void omap4430_init_late(void);
 159 int omap2_common_pm_late_init(void);
 160 void omap_prcm_restart(char, const char *);
 161
 162 /*
 163  * IO bases for various OMAP processors
 164  * Except the tap base, rest all the io bases
 165  * listed are physical addresses.
 166  */
 167 struct omap_globals {
 168         u32             class;          /* OMAP class to detect */
 169         void __iomem    *tap;           /* Control module ID code */
 170         void __iomem    *sdrc;           /* SDRAM Controller */
 171         void __iomem    *sms;            /* SDRAM Memory Scheduler */
 172         void __iomem    *ctrl;           /* System Control Module */
 173         void __iomem    *ctrl_pad;      /* PAD Control Module */
 174         void __iomem    *prm;            /* Power and Reset Management */
 175         void __iomem    *cm;             /* Clock Management */
 176         void __iomem    *cm2;
 177         void __iomem    *prcm_mpu;
 178 };
 179
 180 void omap2_set_globals_242x(void);
 181 void omap2_set_globals_243x(void);
 182 void omap2_set_globals_3xxx(void);
 183 void omap2_set_globals_443x(void);
 184 void omap2_set_globals_5xxx(void);
 185 void omap2_set_globals_ti81xx(void);
 186 void omap2_set_globals_am33xx(void);
 187
 188 /* These get called from omap2_set_globals_xxxx(), do not call these */
 189 void omap2_set_globals_tap(struct omap_globals *);
 190 #if defined(CONFIG_SOC_HAS_OMAP2_SDRC)
 191 void omap2_set_globals_sdrc(struct omap_globals *);
 192 #else
 193 static inline void omap2_set_globals_sdrc(struct omap_globals *omap2_globals)
 194 { }
 195 #endif
 196 void omap2_set_globals_control(struct omap_globals *);
 197 void omap2_set_globals_prcm(struct omap_globals *);
 198
 199 void omap242x_map_io(void);
 200 void omap243x_map_io(void);
 201 void omap3_map_io(void);
 202 void am33xx_map_io(void);
 203 void omap4_map_io(void);
 204 void omap5_map_io(void);
 205 void ti81xx_map_io(void);
 206 void omap_barriers_init(void);
 207
 208 /**
 209  * omap_test_timeout - busy-loop, testing a condition
 210  * @cond: condition to test until it evaluates to true
 211  * @timeout: maximum number of microseconds in the timeout
 212  * @index: loop index (integer)
 213  *
 214  * Loop waiting for @cond to become true or until at least @timeout
 215  * microseconds have passed.  To use, define some integer @index in the
 216  * calling code.  After running, if @index == @timeout, then the loop has
 217  * timed out.
 218  */
 219 #define omap_test_timeout(cond, timeout, index)                 \
 220 ({                                                              \
 221         for (index = 0; index < timeout; index++) {             \
 222                 if (cond)                                       \
 223                         break;                                  \
 224                 udelay(1);                                      \
 225         }                                                       \
 226 })
 227
 228 extern struct device *omap2_get_mpuss_device(void);
 229 extern struct device *omap2_get_iva_device(void);
 230 extern struct device *omap2_get_l3_device(void);
 231 extern struct device *omap4_get_dsp_device(void);
 232
 233 void omap2_init_irq(void);
 234 void omap3_init_irq(void);
 235 void ti81xx_init_irq(void);
 236 extern int omap_irq_pending(void);
 237 void omap_intc_save_context(void);
 238 void omap_intc_restore_context(void);
 239 void omap3_intc_suspend(void);
 240 void omap3_intc_prepare_idle(void);
 241 void omap3_intc_resume_idle(void);
 242 void omap2_intc_handle_irq(struct pt_regs *regs);
 243 void omap3_intc_handle_irq(struct pt_regs *regs);
 244 void omap_intc_of_init(void);
 245 void omap_gic_of_init(void);
 246
 247 #ifdef CONFIG_CACHE_L2X0
 248 extern void __iomem *omap4_get_l2cache_base(void);
 249 #endif
 250
 251 struct device_node;
 252 #ifdef CONFIG_OF
 253 int __init intc_of_init(struct device_node *node,
 254                              struct device_node *parent);
 255 #else
 256 int __init intc_of_init(struct device_node *node,
 257                              struct device_node *parent)
 258 {
 259         return 0;
 260 }
 261 #endif
 262
 263 #ifdef CONFIG_SMP
 264 extern void __iomem *omap4_get_scu_base(void);
 265 #else
 266 static inline void __iomem *omap4_get_scu_base(void)
 267 {
 268         return NULL;
 269 }
 270 #endif
 271
 272 extern void __init gic_init_irq(void);
 273 extern void omap_smc1(u32 fn, u32 arg);
 274 extern void __iomem *omap4_get_sar_ram_base(void);
 275 extern void omap_do_wfi(void);
 276
 277 #ifdef CONFIG_SMP
 278 /* Needed for secondary core boot */
 279 extern void omap_secondary_startup(void);
 280 extern u32 omap_modify_auxcoreboot0(u32 set_mask, u32 clear_mask);
 281 extern void omap_auxcoreboot_addr(u32 cpu_addr);
 282 extern u32 omap_read_auxcoreboot0(void);
 283 extern void omap5_secondary_startup(void);
 284 #endif
 285
 286 #if defined(CONFIG_SMP) && defined(CONFIG_PM)
 287 extern int omap4_mpuss_init(void);
 288 extern int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state);
 289 extern int omap4_finish_suspend(unsigned long cpu_state);
 290 extern void omap4_cpu_resume(void);
 291 extern int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state);
 292 extern u32 omap4_mpuss_read_prev_context_state(void);
 293 #else
 294 static inline int omap4_enter_lowpower(unsigned int cpu,
 295                                         unsigned int power_state)
 296 {
 297         cpu_do_idle();
 298         return 0;
 299 }
 300
 301 static inline int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state)
 302 {
 303         cpu_do_idle();
 304         return 0;
 305 }
 306
 307 static inline int omap4_mpuss_init(void)
 308 {
 309         return 0;
 310 }
 311
 312 static inline int omap4_finish_suspend(unsigned long cpu_state)
 313 {
 314         return 0;
 315 }
 316
 317 static inline void omap4_cpu_resume(void)
 318 {}
 319
 320 static inline u32 omap4_mpuss_read_prev_context_state(void)
 321 {
 322         return 0;
 323 }
 324 #endif
 325
 326 struct omap_sdrc_params;
 327 extern void omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0,
 328                                       struct omap_sdrc_params *sdrc_cs1);
 329 struct omap2_hsmmc_info;
 330 extern int omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers);
 331
 332 #endif /* __ASSEMBLER__ */
 333 #endif /* __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H */