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 am43xx_init_late(void);
 102 void omap4430_init_early(void);
 103 void omap5_init_early(void);
 104 void omap3_init_late(void);     /* Do not use this one */
 105 void omap4430_init_late(void);
 106 void omap2420_init_late(void);
 107 void omap2430_init_late(void);
 108 void omap3430_init_late(void);
 109 void omap35xx_init_late(void);
 110 void omap3630_init_late(void);
 111 void am35xx_init_late(void);
 112 void ti81xx_init_late(void);
 113 void am33xx_init_late(void);
 114 void omap5_init_late(void);
 115 int omap2_common_pm_late_init(void);
 116 void dra7xx_init_early(void);
 117 void dra7xx_init_late(void);
 118
 119 #ifdef CONFIG_SOC_BUS
 120 void omap_soc_device_init(void);
 121 #else
 122 static inline void omap_soc_device_init(void)
 123 {
 124 }
 125 #endif
 126
 127 #if defined(CONFIG_SOC_OMAP2420) || defined(CONFIG_SOC_OMAP2430)
 128 void omap2xxx_restart(enum reboot_mode mode, const char *cmd);
 129 #else
 130 static inline void omap2xxx_restart(enum reboot_mode mode, const char *cmd)
 131 {
 132 }
 133 #endif
 134
 135 #ifdef CONFIG_SOC_AM33XX
 136 void am33xx_restart(enum reboot_mode mode, const char *cmd);
 137 #else
 138 static inline void am33xx_restart(enum reboot_mode mode, const char *cmd)
 139 {
 140 }
 141 #endif
 142
 143 #ifdef CONFIG_ARCH_OMAP3
 144 void omap3xxx_restart(enum reboot_mode mode, const char *cmd);
 145 #else
 146 static inline void omap3xxx_restart(enum reboot_mode mode, const char *cmd)
 147 {
 148 }
 149 #endif
 150
 151 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
 152 void omap44xx_restart(enum reboot_mode mode, const char *cmd);
 153 #else
 154 static inline void omap44xx_restart(enum reboot_mode mode, const char *cmd)
 155 {
 156 }
 157 #endif
 158
 159 /* This gets called from mach-omap2/io.c, do not call this */
 160 void __init omap2_set_globals_tap(u32 class, void __iomem *tap);
 161
 162 void __init omap242x_map_io(void);
 163 void __init omap243x_map_io(void);
 164 void __init omap3_map_io(void);
 165 void __init am33xx_map_io(void);
 166 void __init omap4_map_io(void);
 167 void __init omap5_map_io(void);
 168 void __init ti81xx_map_io(void);
 169
 170 /* omap_barriers_init() is OMAP4 only */
 171 void omap_barriers_init(void);
 172
 173 /**
 174  * omap_test_timeout - busy-loop, testing a condition
 175  * @cond: condition to test until it evaluates to true
 176  * @timeout: maximum number of microseconds in the timeout
 177  * @index: loop index (integer)
 178  *
 179  * Loop waiting for @cond to become true or until at least @timeout
 180  * microseconds have passed.  To use, define some integer @index in the
 181  * calling code.  After running, if @index == @timeout, then the loop has
 182  * timed out.
 183  */
 184 #define omap_test_timeout(cond, timeout, index)                 \
 185 ({                                                              \
 186         for (index = 0; index < timeout; index++) {             \
 187                 if (cond)                                       \
 188                         break;                                  \
 189                 udelay(1);                                      \
 190         }                                                       \
 191 })
 192
 193 extern struct device *omap2_get_mpuss_device(void);
 194 extern struct device *omap2_get_iva_device(void);
 195 extern struct device *omap2_get_l3_device(void);
 196 extern struct device *omap4_get_dsp_device(void);
 197
 198 void omap2_init_irq(void);
 199 void omap3_init_irq(void);
 200 void ti81xx_init_irq(void);
 201 extern int omap_irq_pending(void);
 202 void omap_intc_save_context(void);
 203 void omap_intc_restore_context(void);
 204 void omap3_intc_suspend(void);
 205 void omap3_intc_prepare_idle(void);
 206 void omap3_intc_resume_idle(void);
 207 void omap2_intc_handle_irq(struct pt_regs *regs);
 208 void omap3_intc_handle_irq(struct pt_regs *regs);
 209 void omap_intc_of_init(void);
 210 void omap_gic_of_init(void);
 211
 212 #ifdef CONFIG_CACHE_L2X0
 213 extern void __iomem *omap4_get_l2cache_base(void);
 214 #endif
 215
 216 struct device_node;
 217 #ifdef CONFIG_OF
 218 int __init intc_of_init(struct device_node *node,
 219                              struct device_node *parent);
 220 #else
 221 int __init intc_of_init(struct device_node *node,
 222                              struct device_node *parent)
 223 {
 224         return 0;
 225 }
 226 #endif
 227
 228 #ifdef CONFIG_SMP
 229 extern void __iomem *omap4_get_scu_base(void);
 230 #else
 231 static inline void __iomem *omap4_get_scu_base(void)
 232 {
 233         return NULL;
 234 }
 235 #endif
 236
 237 extern void __init gic_init_irq(void);
 238 extern void gic_dist_disable(void);
 239 extern void gic_dist_enable(void);
 240 extern bool gic_dist_disabled(void);
 241 extern void gic_timer_retrigger(void);
 242 extern void omap_smc1(u32 fn, u32 arg);
 243 extern void __iomem *omap4_get_sar_ram_base(void);
 244 extern void omap_do_wfi(void);
 245
 246 #ifdef CONFIG_SMP
 247 /* Needed for secondary core boot */
 248 extern void omap4_secondary_startup(void);
 249 extern void omap4460_secondary_startup(void);
 250 extern u32 omap_modify_auxcoreboot0(u32 set_mask, u32 clear_mask);
 251 extern void omap_auxcoreboot_addr(u32 cpu_addr);
 252 extern u32 omap_read_auxcoreboot0(void);
 253
 254 extern void omap4_cpu_die(unsigned int cpu);
 255
 256 extern struct smp_operations omap4_smp_ops;
 257
 258 extern void omap5_secondary_startup(void);
 259 #endif
 260
 261 #if defined(CONFIG_SMP) && defined(CONFIG_PM)
 262 extern int omap4_mpuss_init(void);
 263 extern int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state);
 264 extern int omap4_finish_suspend(unsigned long cpu_state);
 265 extern void omap4_cpu_resume(void);
 266 extern int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state);
 267 #else
 268 static inline int omap4_enter_lowpower(unsigned int cpu,
 269                                         unsigned int power_state)
 270 {
 271         cpu_do_idle();
 272         return 0;
 273 }
 274
 275 static inline int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state)
 276 {
 277         cpu_do_idle();
 278         return 0;
 279 }
 280
 281 static inline int omap4_mpuss_init(void)
 282 {
 283         return 0;
 284 }
 285
 286 static inline int omap4_finish_suspend(unsigned long cpu_state)
 287 {
 288         return 0;
 289 }
 290
 291 static inline void omap4_cpu_resume(void)
 292 {}
 293
 294 #endif
 295
 296 void pdata_quirks_init(struct of_device_id *);
 297 void omap_auxdata_legacy_init(struct device *dev);
 298 void omap_pcs_legacy_init(int irq, void (*rearm)(void));
 299
 300 struct omap_sdrc_params;
 301 extern void omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0,
 302                                       struct omap_sdrc_params *sdrc_cs1);
 303 struct omap2_hsmmc_info;
 304 extern void omap_reserve(void);
 305
 306 struct omap_hwmod;
 307 extern int omap_dss_reset(struct omap_hwmod *);
 308
 309 /* SoC specific clock initializer */
 310 int omap_clk_init(void);
 311
 312 #endif /* __ASSEMBLER__ */
 313 #endif /* __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H */