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 "i2c.h"
  38 #include "serial.h"
  39
  40 #include "usb.h"
  41
  42 #define OMAP_INTC_START         NR_IRQS
  43
  44 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP2)
  45 int omap2_pm_init(void);
  46 #else
  47 static inline int omap2_pm_init(void)
  48 {
  49         return 0;
  50 }
  51 #endif
  52
  53 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3)
  54 int omap3_pm_init(void);
  55 #else
  56 static inline int omap3_pm_init(void)
  57 {
  58         return 0;
  59 }
  60 #endif
  61
  62 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP4)
  63 int omap4_pm_init(void);
  64 #else
  65 static inline int omap4_pm_init(void)
  66 {
  67         return 0;
  68 }
  69 #endif
  70
  71 #ifdef CONFIG_OMAP_MUX
  72 int omap_mux_late_init(void);
  73 #else
  74 static inline int omap_mux_late_init(void)
  75 {
  76         return 0;
  77 }
  78 #endif
  79
  80 extern void omap2_init_common_infrastructure(void);
  81
  82 extern void omap2_sync32k_timer_init(void);
  83 extern void omap3_sync32k_timer_init(void);
  84 extern void omap3_secure_sync32k_timer_init(void);
  85 extern void omap3_gptimer_timer_init(void);
  86 extern void omap4_local_timer_init(void);
  87 extern void omap5_realtime_timer_init(void);
  88
  89 void omap2420_init_early(void);
  90 void omap2430_init_early(void);
  91 void omap3430_init_early(void);
  92 void omap35xx_init_early(void);
  93 void omap3630_init_early(void);
  94 void omap3_init_early(void);    /* Do not use this one */
  95 void am33xx_init_early(void);
  96 void am35xx_init_early(void);
  97 void ti81xx_init_early(void);
  98 void am33xx_init_early(void);
  99 void omap4430_init_early(void);
 100 void omap5_init_early(void);
 101 void omap3_init_late(void);     /* Do not use this one */
 102 void omap4430_init_late(void);
 103 void omap2420_init_late(void);
 104 void omap2430_init_late(void);
 105 void omap3430_init_late(void);
 106 void omap35xx_init_late(void);
 107 void omap3630_init_late(void);
 108 void am35xx_init_late(void);
 109 void ti81xx_init_late(void);
 110 int omap2_common_pm_late_init(void);
 111
 112 #if defined(CONFIG_SOC_OMAP2420) || defined(CONFIG_SOC_OMAP2430)
 113 void omap2xxx_restart(char mode, const char *cmd);
 114 #else
 115 static inline void omap2xxx_restart(char mode, const char *cmd)
 116 {
 117 }
 118 #endif
 119
 120 #ifdef CONFIG_SOC_AM33XX
 121 void am33xx_restart(char mode, const char *cmd);
 122 #else
 123 static inline void am33xx_restart(char mode, const char *cmd)
 124 {
 125 }
 126 #endif
 127
 128 #ifdef CONFIG_ARCH_OMAP3
 129 void omap3xxx_restart(char mode, const char *cmd);
 130 #else
 131 static inline void omap3xxx_restart(char mode, const char *cmd)
 132 {
 133 }
 134 #endif
 135
 136 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
 137 void omap44xx_restart(char mode, const char *cmd);
 138 #else
 139 static inline void omap44xx_restart(char mode, const char *cmd)
 140 {
 141 }
 142 #endif
 143
 144 /* This gets called from mach-omap2/io.c, do not call this */
 145 void __init omap2_set_globals_tap(u32 class, void __iomem *tap);
 146
 147 void __init omap242x_map_io(void);
 148 void __init omap243x_map_io(void);
 149 void __init omap3_map_io(void);
 150 void __init am33xx_map_io(void);
 151 void __init omap4_map_io(void);
 152 void __init omap5_map_io(void);
 153 void __init ti81xx_map_io(void);
 154
 155 /* omap_barriers_init() is OMAP4 only */
 156 void omap_barriers_init(void);
 157
 158 /**
 159  * omap_test_timeout - busy-loop, testing a condition
 160  * @cond: condition to test until it evaluates to true
 161  * @timeout: maximum number of microseconds in the timeout
 162  * @index: loop index (integer)
 163  *
 164  * Loop waiting for @cond to become true or until at least @timeout
 165  * microseconds have passed.  To use, define some integer @index in the
 166  * calling code.  After running, if @index == @timeout, then the loop has
 167  * timed out.
 168  */
 169 #define omap_test_timeout(cond, timeout, index)                 \
 170 ({                                                              \
 171         for (index = 0; index < timeout; index++) {             \
 172                 if (cond)                                       \
 173                         break;                                  \
 174                 udelay(1);                                      \
 175         }                                                       \
 176 })
 177
 178 extern struct device *omap2_get_mpuss_device(void);
 179 extern struct device *omap2_get_iva_device(void);
 180 extern struct device *omap2_get_l3_device(void);
 181 extern struct device *omap4_get_dsp_device(void);
 182
 183 void omap2_init_irq(void);
 184 void omap3_init_irq(void);
 185 void ti81xx_init_irq(void);
 186 extern int omap_irq_pending(void);
 187 void omap_intc_save_context(void);
 188 void omap_intc_restore_context(void);
 189 void omap3_intc_suspend(void);
 190 void omap3_intc_prepare_idle(void);
 191 void omap3_intc_resume_idle(void);
 192 void omap2_intc_handle_irq(struct pt_regs *regs);
 193 void omap3_intc_handle_irq(struct pt_regs *regs);
 194 void omap_intc_of_init(void);
 195 void omap_gic_of_init(void);
 196
 197 #ifdef CONFIG_CACHE_L2X0
 198 extern void __iomem *omap4_get_l2cache_base(void);
 199 #endif
 200
 201 struct device_node;
 202 #ifdef CONFIG_OF
 203 int __init intc_of_init(struct device_node *node,
 204                              struct device_node *parent);
 205 #else
 206 int __init intc_of_init(struct device_node *node,
 207                              struct device_node *parent)
 208 {
 209         return 0;
 210 }
 211 #endif
 212
 213 #ifdef CONFIG_SMP
 214 extern void __iomem *omap4_get_scu_base(void);
 215 #else
 216 static inline void __iomem *omap4_get_scu_base(void)
 217 {
 218         return NULL;
 219 }
 220 #endif
 221
 222 extern void __init gic_init_irq(void);
 223 extern void gic_dist_disable(void);
 224 extern bool gic_dist_disabled(void);
 225 extern void gic_timer_retrigger(void);
 226 extern void omap_smc1(u32 fn, u32 arg);
 227 extern void __iomem *omap4_get_sar_ram_base(void);
 228 extern void omap_do_wfi(void);
 229
 230 #ifdef CONFIG_SMP
 231 /* Needed for secondary core boot */
 232 extern void omap_secondary_startup(void);
 233 extern void omap_secondary_startup_4460(void);
 234 extern u32 omap_modify_auxcoreboot0(u32 set_mask, u32 clear_mask);
 235 extern void omap_auxcoreboot_addr(u32 cpu_addr);
 236 extern u32 omap_read_auxcoreboot0(void);
 237
 238 extern void omap4_cpu_die(unsigned int cpu);
 239
 240 extern struct smp_operations omap4_smp_ops;
 241
 242 extern void omap5_secondary_startup(void);
 243 #endif
 244
 245 #if defined(CONFIG_SMP) && defined(CONFIG_PM)
 246 extern int omap4_mpuss_init(void);
 247 extern int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state);
 248 extern int omap4_finish_suspend(unsigned long cpu_state);
 249 extern void omap4_cpu_resume(void);
 250 extern int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state);
 251 extern u32 omap4_mpuss_read_prev_context_state(void);
 252 #else
 253 static inline int omap4_enter_lowpower(unsigned int cpu,
 254                                         unsigned int power_state)
 255 {
 256         cpu_do_idle();
 257         return 0;
 258 }
 259
 260 static inline int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state)
 261 {
 262         cpu_do_idle();
 263         return 0;
 264 }
 265
 266 static inline int omap4_mpuss_init(void)
 267 {
 268         return 0;
 269 }
 270
 271 static inline int omap4_finish_suspend(unsigned long cpu_state)
 272 {
 273         return 0;
 274 }
 275
 276 static inline void omap4_cpu_resume(void)
 277 {}
 278
 279 static inline u32 omap4_mpuss_read_prev_context_state(void)
 280 {
 281         return 0;
 282 }
 283 #endif
 284
 285 struct omap_sdrc_params;
 286 extern void omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0,
 287                                       struct omap_sdrc_params *sdrc_cs1);
 288 struct omap2_hsmmc_info;
 289 extern int omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers);
 290 extern void omap_reserve(void);
 291
 292 struct omap_hwmod;
 293 extern int omap_dss_reset(struct omap_hwmod *);
 294
 295 /* SoC specific clock initializer */
 296 extern int (*omap_clk_init)(void);
 297
 298 #endif /* __ASSEMBLER__ */
 299 #endif /* __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H */