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_gp_gptimer_timer_init(void);
  86 extern void omap3_am33xx_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 omap4430_init_early(void);
 101 void omap5_init_early(void);
 102 void omap3_init_late(void);     /* Do not use this one */
 103 void omap4430_init_late(void);
 104 void omap2420_init_late(void);
 105 void omap2430_init_late(void);
 106 void omap3430_init_late(void);
 107 void omap35xx_init_late(void);
 108 void omap3630_init_late(void);
 109 void am35xx_init_late(void);
 110 void ti81xx_init_late(void);
 111 int omap2_common_pm_late_init(void);
 112
 113 #if defined(CONFIG_SOC_OMAP2420) || defined(CONFIG_SOC_OMAP2430)
 114 void omap2xxx_restart(char mode, const char *cmd);
 115 #else
 116 static inline void omap2xxx_restart(char mode, const char *cmd)
 117 {
 118 }
 119 #endif
 120
 121 #ifdef CONFIG_SOC_AM33XX
 122 void am33xx_restart(char mode, const char *cmd);
 123 #else
 124 static inline void am33xx_restart(char mode, const char *cmd)
 125 {
 126 }
 127 #endif
 128
 129 #ifdef CONFIG_ARCH_OMAP3
 130 void omap3xxx_restart(char mode, const char *cmd);
 131 #else
 132 static inline void omap3xxx_restart(char mode, const char *cmd)
 133 {
 134 }
 135 #endif
 136
 137 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
 138 void omap44xx_restart(char mode, const char *cmd);
 139 #else
 140 static inline void omap44xx_restart(char mode, const char *cmd)
 141 {
 142 }
 143 #endif
 144
 145 /* This gets called from mach-omap2/io.c, do not call this */
 146 void __init omap2_set_globals_tap(u32 class, void __iomem *tap);
 147
 148 void __init omap242x_map_io(void);
 149 void __init omap243x_map_io(void);
 150 void __init omap3_map_io(void);
 151 void __init am33xx_map_io(void);
 152 void __init omap4_map_io(void);
 153 void __init omap5_map_io(void);
 154 void __init ti81xx_map_io(void);
 155
 156 /* omap_barriers_init() is OMAP4 only */
 157 void omap_barriers_init(void);
 158
 159 /**
 160  * omap_test_timeout - busy-loop, testing a condition
 161  * @cond: condition to test until it evaluates to true
 162  * @timeout: maximum number of microseconds in the timeout
 163  * @index: loop index (integer)
 164  *
 165  * Loop waiting for @cond to become true or until at least @timeout
 166  * microseconds have passed.  To use, define some integer @index in the
 167  * calling code.  After running, if @index == @timeout, then the loop has
 168  * timed out.
 169  */
 170 #define omap_test_timeout(cond, timeout, index)                 \
 171 ({                                                              \
 172         for (index = 0; index < timeout; index++) {             \
 173                 if (cond)                                       \
 174                         break;                                  \
 175                 udelay(1);                                      \
 176         }                                                       \
 177 })
 178
 179 extern struct device *omap2_get_mpuss_device(void);
 180 extern struct device *omap2_get_iva_device(void);
 181 extern struct device *omap2_get_l3_device(void);
 182 extern struct device *omap4_get_dsp_device(void);
 183
 184 void omap2_init_irq(void);
 185 void omap3_init_irq(void);
 186 void ti81xx_init_irq(void);
 187 extern int omap_irq_pending(void);
 188 void omap_intc_save_context(void);
 189 void omap_intc_restore_context(void);
 190 void omap3_intc_suspend(void);
 191 void omap3_intc_prepare_idle(void);
 192 void omap3_intc_resume_idle(void);
 193 void omap2_intc_handle_irq(struct pt_regs *regs);
 194 void omap3_intc_handle_irq(struct pt_regs *regs);
 195 void omap_intc_of_init(void);
 196 void omap_gic_of_init(void);
 197
 198 #ifdef CONFIG_CACHE_L2X0
 199 extern void __iomem *omap4_get_l2cache_base(void);
 200 #endif
 201
 202 struct device_node;
 203 #ifdef CONFIG_OF
 204 int __init intc_of_init(struct device_node *node,
 205                              struct device_node *parent);
 206 #else
 207 int __init intc_of_init(struct device_node *node,
 208                              struct device_node *parent)
 209 {
 210         return 0;
 211 }
 212 #endif
 213
 214 #ifdef CONFIG_SMP
 215 extern void __iomem *omap4_get_scu_base(void);
 216 #else
 217 static inline void __iomem *omap4_get_scu_base(void)
 218 {
 219         return NULL;
 220 }
 221 #endif
 222
 223 extern void __init gic_init_irq(void);
 224 extern void gic_dist_disable(void);
 225 extern bool gic_dist_disabled(void);
 226 extern void gic_timer_retrigger(void);
 227 extern void omap_smc1(u32 fn, u32 arg);
 228 extern void __iomem *omap4_get_sar_ram_base(void);
 229 extern void omap_do_wfi(void);
 230
 231 #ifdef CONFIG_SMP
 232 /* Needed for secondary core boot */
 233 extern void omap_secondary_startup(void);
 234 extern void omap_secondary_startup_4460(void);
 235 extern u32 omap_modify_auxcoreboot0(u32 set_mask, u32 clear_mask);
 236 extern void omap_auxcoreboot_addr(u32 cpu_addr);
 237 extern u32 omap_read_auxcoreboot0(void);
 238
 239 extern void omap4_cpu_die(unsigned int cpu);
 240
 241 extern struct smp_operations omap4_smp_ops;
 242
 243 extern void omap5_secondary_startup(void);
 244 #endif
 245
 246 #if defined(CONFIG_SMP) && defined(CONFIG_PM)
 247 extern int omap4_mpuss_init(void);
 248 extern int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state);
 249 extern int omap4_finish_suspend(unsigned long cpu_state);
 250 extern void omap4_cpu_resume(void);
 251 extern int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state);
 252 extern u32 omap4_mpuss_read_prev_context_state(void);
 253 #else
 254 static inline int omap4_enter_lowpower(unsigned int cpu,
 255                                         unsigned int power_state)
 256 {
 257         cpu_do_idle();
 258         return 0;
 259 }
 260
 261 static inline int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state)
 262 {
 263         cpu_do_idle();
 264         return 0;
 265 }
 266
 267 static inline int omap4_mpuss_init(void)
 268 {
 269         return 0;
 270 }
 271
 272 static inline int omap4_finish_suspend(unsigned long cpu_state)
 273 {
 274         return 0;
 275 }
 276
 277 static inline void omap4_cpu_resume(void)
 278 {}
 279
 280 static inline u32 omap4_mpuss_read_prev_context_state(void)
 281 {
 282         return 0;
 283 }
 284 #endif
 285
 286 struct omap_sdrc_params;
 287 extern void omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0,
 288                                       struct omap_sdrc_params *sdrc_cs1);
 289 struct omap2_hsmmc_info;
 290 extern int omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers);
 291 extern void omap_reserve(void);
 292
 293 struct omap_hwmod;
 294 extern int omap_dss_reset(struct omap_hwmod *);
 295
 296 /* SoC specific clock initializer */
 297 extern int (*omap_clk_init)(void);
 298
 299 #endif /* __ASSEMBLER__ */
 300 #endif /* __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H */