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
  33 #include <asm/proc-fns.h>
  34
  35 #include <plat/cpu.h>
  36 #include <plat/serial.h>
  37 #include <plat/common.h>
  38
  39 #define OMAP_INTC_START         NR_IRQS
  40
  41 #ifdef CONFIG_SOC_OMAP2420
  42 extern void omap242x_map_common_io(void);
  43 #else
  44 static inline void omap242x_map_common_io(void)
  45 {
  46 }
  47 #endif
  48
  49 #ifdef CONFIG_SOC_OMAP2430
  50 extern void omap243x_map_common_io(void);
  51 #else
  52 static inline void omap243x_map_common_io(void)
  53 {
  54 }
  55 #endif
  56
  57 #ifdef CONFIG_ARCH_OMAP3
  58 extern void omap34xx_map_common_io(void);
  59 #else
  60 static inline void omap34xx_map_common_io(void)
  61 {
  62 }
  63 #endif
  64
  65 #ifdef CONFIG_SOC_TI81XX
  66 extern void omapti81xx_map_common_io(void);
  67 #else
  68 static inline void omapti81xx_map_common_io(void)
  69 {
  70 }
  71 #endif
  72
  73 #ifdef CONFIG_SOC_AM33XX
  74 extern void omapam33xx_map_common_io(void);
  75 #else
  76 static inline void omapam33xx_map_common_io(void)
  77 {
  78 }
  79 #endif
  80
  81 #ifdef CONFIG_ARCH_OMAP4
  82 extern void omap44xx_map_common_io(void);
  83 #else
  84 static inline void omap44xx_map_common_io(void)
  85 {
  86 }
  87 #endif
  88
  89 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP2)
  90 int omap2_pm_init(void);
  91 #else
  92 static inline int omap2_pm_init(void)
  93 {
  94         return 0;
  95 }
  96 #endif
  97
  98 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3)
  99 int omap3_pm_init(void);
 100 #else
 101 static inline int omap3_pm_init(void)
 102 {
 103         return 0;
 104 }
 105 #endif
 106
 107 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP4)
 108 int omap4_pm_init(void);
 109 #else
 110 static inline int omap4_pm_init(void)
 111 {
 112         return 0;
 113 }
 114 #endif
 115
 116 #ifdef CONFIG_OMAP_MUX
 117 int omap_mux_late_init(void);
 118 #else
 119 static inline int omap_mux_late_init(void)
 120 {
 121         return 0;
 122 }
 123 #endif
 124
 125 #ifdef CONFIG_SOC_OMAP5
 126 extern void omap5_map_common_io(void);
 127 #else
 128 static inline void omap5_map_common_io(void)
 129 {
 130 }
 131 #endif
 132
 133 extern void omap2_init_common_infrastructure(void);
 134
 135 extern struct sys_timer omap2_timer;
 136 extern struct sys_timer omap3_timer;
 137 extern struct sys_timer omap3_secure_timer;
 138 extern struct sys_timer omap3_am33xx_timer;
 139 extern struct sys_timer omap4_timer;
 140 extern struct sys_timer omap5_timer;
 141
 142 void omap2420_init_early(void);
 143 void omap2430_init_early(void);
 144 void omap3430_init_early(void);
 145 void omap35xx_init_early(void);
 146 void omap3630_init_early(void);
 147 void omap3_init_early(void);    /* Do not use this one */
 148 void am33xx_init_early(void);
 149 void am35xx_init_early(void);
 150 void ti81xx_init_early(void);
 151 void am33xx_init_early(void);
 152 void omap4430_init_early(void);
 153 void omap5_init_early(void);
 154 void omap3_init_late(void);     /* Do not use this one */
 155 void omap4430_init_late(void);
 156 void omap2420_init_late(void);
 157 void omap2430_init_late(void);
 158 void omap3430_init_late(void);
 159 void omap35xx_init_late(void);
 160 void omap3630_init_late(void);
 161 void am35xx_init_late(void);
 162 void ti81xx_init_late(void);
 163 void omap4430_init_late(void);
 164 int omap2_common_pm_late_init(void);
 165 void omap_prcm_restart(char, const char *);
 166
 167 /*
 168  * IO bases for various OMAP processors
 169  * Except the tap base, rest all the io bases
 170  * listed are physical addresses.
 171  */
 172 struct omap_globals {
 173         u32             class;          /* OMAP class to detect */
 174         void __iomem    *tap;           /* Control module ID code */
 175         void __iomem    *sdrc;           /* SDRAM Controller */
 176         void __iomem    *sms;            /* SDRAM Memory Scheduler */
 177         void __iomem    *ctrl;           /* System Control Module */
 178         void __iomem    *ctrl_pad;      /* PAD Control Module */
 179         void __iomem    *prm;            /* Power and Reset Management */
 180         void __iomem    *cm;             /* Clock Management */
 181         void __iomem    *cm2;
 182         void __iomem    *prcm_mpu;
 183 };
 184
 185 void omap2_set_globals_242x(void);
 186 void omap2_set_globals_243x(void);
 187 void omap2_set_globals_3xxx(void);
 188 void omap2_set_globals_443x(void);
 189 void omap2_set_globals_5xxx(void);
 190 void omap2_set_globals_ti81xx(void);
 191 void omap2_set_globals_am33xx(void);
 192
 193 /* These get called from omap2_set_globals_xxxx(), do not call these */
 194 void omap2_set_globals_tap(struct omap_globals *);
 195 #if defined(CONFIG_SOC_HAS_OMAP2_SDRC)
 196 void omap2_set_globals_sdrc(struct omap_globals *);
 197 #else
 198 static inline void omap2_set_globals_sdrc(struct omap_globals *omap2_globals)
 199 { }
 200 #endif
 201 void omap2_set_globals_control(struct omap_globals *);
 202 void omap2_set_globals_prcm(struct omap_globals *);
 203
 204 void omap242x_map_io(void);
 205 void omap243x_map_io(void);
 206 void omap3_map_io(void);
 207 void am33xx_map_io(void);
 208 void omap4_map_io(void);
 209 void omap5_map_io(void);
 210 void ti81xx_map_io(void);
 211 void omap_barriers_init(void);
 212
 213 /**
 214  * omap_test_timeout - busy-loop, testing a condition
 215  * @cond: condition to test until it evaluates to true
 216  * @timeout: maximum number of microseconds in the timeout
 217  * @index: loop index (integer)
 218  *
 219  * Loop waiting for @cond to become true or until at least @timeout
 220  * microseconds have passed.  To use, define some integer @index in the
 221  * calling code.  After running, if @index == @timeout, then the loop has
 222  * timed out.
 223  */
 224 #define omap_test_timeout(cond, timeout, index)                 \
 225 ({                                                              \
 226         for (index = 0; index < timeout; index++) {             \
 227                 if (cond)                                       \
 228                         break;                                  \
 229                 udelay(1);                                      \
 230         }                                                       \
 231 })
 232
 233 extern struct device *omap2_get_mpuss_device(void);
 234 extern struct device *omap2_get_iva_device(void);
 235 extern struct device *omap2_get_l3_device(void);
 236 extern struct device *omap4_get_dsp_device(void);
 237
 238 void omap2_init_irq(void);
 239 void omap3_init_irq(void);
 240 void ti81xx_init_irq(void);
 241 extern int omap_irq_pending(void);
 242 void omap_intc_save_context(void);
 243 void omap_intc_restore_context(void);
 244 void omap3_intc_suspend(void);
 245 void omap3_intc_prepare_idle(void);
 246 void omap3_intc_resume_idle(void);
 247 void omap2_intc_handle_irq(struct pt_regs *regs);
 248 void omap3_intc_handle_irq(struct pt_regs *regs);
 249 void omap_intc_of_init(void);
 250 void omap_gic_of_init(void);
 251
 252 #ifdef CONFIG_CACHE_L2X0
 253 extern void __iomem *omap4_get_l2cache_base(void);
 254 #endif
 255
 256 struct device_node;
 257 #ifdef CONFIG_OF
 258 int __init intc_of_init(struct device_node *node,
 259                              struct device_node *parent);
 260 #else
 261 int __init intc_of_init(struct device_node *node,
 262                              struct device_node *parent)
 263 {
 264         return 0;
 265 }
 266 #endif
 267
 268 #ifdef CONFIG_SMP
 269 extern void __iomem *omap4_get_scu_base(void);
 270 #else
 271 static inline void __iomem *omap4_get_scu_base(void)
 272 {
 273         return NULL;
 274 }
 275 #endif
 276
 277 extern void __init gic_init_irq(void);
 278 extern void omap_smc1(u32 fn, u32 arg);
 279 extern void __iomem *omap4_get_sar_ram_base(void);
 280 extern void omap_do_wfi(void);
 281
 282 #ifdef CONFIG_SMP
 283 /* Needed for secondary core boot */
 284 extern void omap_secondary_startup(void);
 285 extern u32 omap_modify_auxcoreboot0(u32 set_mask, u32 clear_mask);
 286 extern void omap_auxcoreboot_addr(u32 cpu_addr);
 287 extern u32 omap_read_auxcoreboot0(void);
 288
 289 extern void omap4_cpu_die(unsigned int cpu);
 290
 291 extern struct smp_operations omap4_smp_ops;
 292
 293 extern void omap5_secondary_startup(void);
 294 #endif
 295
 296 #if defined(CONFIG_SMP) && defined(CONFIG_PM)
 297 extern int omap4_mpuss_init(void);
 298 extern int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state);
 299 extern int omap4_finish_suspend(unsigned long cpu_state);
 300 extern void omap4_cpu_resume(void);
 301 extern int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state);
 302 extern u32 omap4_mpuss_read_prev_context_state(void);
 303 #else
 304 static inline int omap4_enter_lowpower(unsigned int cpu,
 305                                         unsigned int power_state)
 306 {
 307         cpu_do_idle();
 308         return 0;
 309 }
 310
 311 static inline int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state)
 312 {
 313         cpu_do_idle();
 314         return 0;
 315 }
 316
 317 static inline int omap4_mpuss_init(void)
 318 {
 319         return 0;
 320 }
 321
 322 static inline int omap4_finish_suspend(unsigned long cpu_state)
 323 {
 324         return 0;
 325 }
 326
 327 static inline void omap4_cpu_resume(void)
 328 {}
 329
 330 static inline u32 omap4_mpuss_read_prev_context_state(void)
 331 {
 332         return 0;
 333 }
 334 #endif
 335
 336 struct omap_sdrc_params;
 337 extern void omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0,
 338                                       struct omap_sdrc_params *sdrc_cs1);
 339 struct omap2_hsmmc_info;
 340 extern int omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers);
 341
 342 #endif /* __ASSEMBLER__ */
 343 #endif /* __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H */