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 #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 #else
  66 static inline int omap4_pm_init(void)
  67 {
  68         return 0;
  69 }
  70 #endif
  71
  72 #ifdef CONFIG_OMAP_MUX
  73 int omap_mux_late_init(void);
  74 #else
  75 static inline int omap_mux_late_init(void)
  76 {
  77         return 0;
  78 }
  79 #endif
  80
  81 extern void omap2_init_common_infrastructure(void);
  82
  83 extern void omap2_sync32k_timer_init(void);
  84 extern void omap3_sync32k_timer_init(void);
  85 extern void omap3_secure_sync32k_timer_init(void);
  86 extern void omap3_gptimer_timer_init(void);
  87 extern void omap4_local_timer_init(void);
  88 extern void omap5_realtime_timer_init(void);
  89
  90 void omap2420_init_early(void);
  91 void omap2430_init_early(void);
  92 void omap3430_init_early(void);
  93 void omap35xx_init_early(void);
  94 void omap3630_init_early(void);
  95 void omap3_init_early(void);    /* Do not use this one */
  96 void am33xx_init_early(void);
  97 void am35xx_init_early(void);
  98 void ti81xx_init_early(void);
  99 void am33xx_init_early(void);
 100 void am43xx_init_early(void);
 101 void omap4430_init_early(void);
 102 void omap5_init_early(void);
 103 void omap3_init_late(void);     /* Do not use this one */
 104 void omap4430_init_late(void);
 105 void omap2420_init_late(void);
 106 void omap2430_init_late(void);
 107 void omap3430_init_late(void);
 108 void omap35xx_init_late(void);
 109 void omap3630_init_late(void);
 110 void am35xx_init_late(void);
 111 void ti81xx_init_late(void);
 112 int omap2_common_pm_late_init(void);
 113 void dra7xx_init_early(void);
 114
 115 #ifdef CONFIG_SOC_BUS
 116 void omap_soc_device_init(void);
 117 #else
 118 static inline void omap_soc_device_init(void)
 119 {
 120 }
 121 #endif
 122
 123 #if defined(CONFIG_SOC_OMAP2420) || defined(CONFIG_SOC_OMAP2430)
 124 void omap2xxx_restart(enum reboot_mode mode, const char *cmd);
 125 #else
 126 static inline void omap2xxx_restart(enum reboot_mode mode, const char *cmd)
 127 {
 128 }
 129 #endif
 130
 131 #ifdef CONFIG_SOC_AM33XX
 132 void am33xx_restart(enum reboot_mode mode, const char *cmd);
 133 #else
 134 static inline void am33xx_restart(enum reboot_mode mode, const char *cmd)
 135 {
 136 }
 137 #endif
 138
 139 #ifdef CONFIG_ARCH_OMAP3
 140 void omap3xxx_restart(enum reboot_mode mode, const char *cmd);
 141 #else
 142 static inline void omap3xxx_restart(enum reboot_mode mode, const char *cmd)
 143 {
 144 }
 145 #endif
 146
 147 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
 148 void omap44xx_restart(enum reboot_mode mode, const char *cmd);
 149 #else
 150 static inline void omap44xx_restart(enum reboot_mode mode, const char *cmd)
 151 {
 152 }
 153 #endif
 154
 155 /* This gets called from mach-omap2/io.c, do not call this */
 156 void __init omap2_set_globals_tap(u32 class, void __iomem *tap);
 157
 158 void __init omap242x_map_io(void);
 159 void __init omap243x_map_io(void);
 160 void __init omap3_map_io(void);
 161 void __init am33xx_map_io(void);
 162 void __init omap4_map_io(void);
 163 void __init omap5_map_io(void);
 164 void __init ti81xx_map_io(void);
 165
 166 /* omap_barriers_init() is OMAP4 only */
 167 void omap_barriers_init(void);
 168
 169 /**
 170  * omap_test_timeout - busy-loop, testing a condition
 171  * @cond: condition to test until it evaluates to true
 172  * @timeout: maximum number of microseconds in the timeout
 173  * @index: loop index (integer)
 174  *
 175  * Loop waiting for @cond to become true or until at least @timeout
 176  * microseconds have passed.  To use, define some integer @index in the
 177  * calling code.  After running, if @index == @timeout, then the loop has
 178  * timed out.
 179  */
 180 #define omap_test_timeout(cond, timeout, index)                 \
 181 ({                                                              \
 182         for (index = 0; index < timeout; index++) {             \
 183                 if (cond)                                       \
 184                         break;                                  \
 185                 udelay(1);                                      \
 186         }                                                       \
 187 })
 188
 189 extern struct device *omap2_get_mpuss_device(void);
 190 extern struct device *omap2_get_iva_device(void);
 191 extern struct device *omap2_get_l3_device(void);
 192 extern struct device *omap4_get_dsp_device(void);
 193
 194 void omap2_init_irq(void);
 195 void omap3_init_irq(void);
 196 void ti81xx_init_irq(void);
 197 extern int omap_irq_pending(void);
 198 void omap_intc_save_context(void);
 199 void omap_intc_restore_context(void);
 200 void omap3_intc_suspend(void);
 201 void omap3_intc_prepare_idle(void);
 202 void omap3_intc_resume_idle(void);
 203 void omap2_intc_handle_irq(struct pt_regs *regs);
 204 void omap3_intc_handle_irq(struct pt_regs *regs);
 205 void omap_intc_of_init(void);
 206 void omap_gic_of_init(void);
 207
 208 #ifdef CONFIG_CACHE_L2X0
 209 extern void __iomem *omap4_get_l2cache_base(void);
 210 #endif
 211
 212 struct device_node;
 213 #ifdef CONFIG_OF
 214 int __init intc_of_init(struct device_node *node,
 215                              struct device_node *parent);
 216 #else
 217 int __init intc_of_init(struct device_node *node,
 218                              struct device_node *parent)
 219 {
 220         return 0;
 221 }
 222 #endif
 223
 224 #ifdef CONFIG_SMP
 225 extern void __iomem *omap4_get_scu_base(void);
 226 #else
 227 static inline void __iomem *omap4_get_scu_base(void)
 228 {
 229         return NULL;
 230 }
 231 #endif
 232
 233 extern void __init gic_init_irq(void);
 234 extern void gic_dist_disable(void);
 235 extern bool gic_dist_disabled(void);
 236 extern void gic_timer_retrigger(void);
 237 extern void omap_smc1(u32 fn, u32 arg);
 238 extern void __iomem *omap4_get_sar_ram_base(void);
 239 extern void omap_do_wfi(void);
 240
 241 #ifdef CONFIG_SMP
 242 /* Needed for secondary core boot */
 243 extern void omap4_secondary_startup(void);
 244 extern void omap4460_secondary_startup(void);
 245 extern u32 omap_modify_auxcoreboot0(u32 set_mask, u32 clear_mask);
 246 extern void omap_auxcoreboot_addr(u32 cpu_addr);
 247 extern u32 omap_read_auxcoreboot0(void);
 248
 249 extern void omap4_cpu_die(unsigned int cpu);
 250
 251 extern struct smp_operations omap4_smp_ops;
 252
 253 extern void omap5_secondary_startup(void);
 254 #endif
 255
 256 #if defined(CONFIG_SMP) && defined(CONFIG_PM)
 257 extern int omap4_mpuss_init(void);
 258 extern int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state);
 259 extern int omap4_finish_suspend(unsigned long cpu_state);
 260 extern void omap4_cpu_resume(void);
 261 extern int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state);
 262 #else
 263 static inline int omap4_enter_lowpower(unsigned int cpu,
 264                                         unsigned int power_state)
 265 {
 266         cpu_do_idle();
 267         return 0;
 268 }
 269
 270 static inline int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state)
 271 {
 272         cpu_do_idle();
 273         return 0;
 274 }
 275
 276 static inline int omap4_mpuss_init(void)
 277 {
 278         return 0;
 279 }
 280
 281 static inline int omap4_finish_suspend(unsigned long cpu_state)
 282 {
 283         return 0;
 284 }
 285
 286 static inline void omap4_cpu_resume(void)
 287 {}
 288
 289 #endif
 290
 291 struct omap_sdrc_params;
 292 extern void omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0,
 293                                       struct omap_sdrc_params *sdrc_cs1);
 294 struct omap2_hsmmc_info;
 295 extern int omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers);
 296 extern void omap_reserve(void);
 297
 298 struct omap_hwmod;
 299 extern int omap_dss_reset(struct omap_hwmod *);
 300
 301 /* SoC specific clock initializer */
 302 extern int (*omap_clk_init)(void);
 303
 304 #endif /* __ASSEMBLER__ */
 305 #endif /* __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H */