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