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 #include <linux/irqchip/irq-omap-intc.h>
  36
  37 #include <asm/proc-fns.h>
  38 #include <asm/hardware/cache-l2x0.h>
  39
  40 #include "i2c.h"
  41 #include "serial.h"
  42
  43 #include "usb.h"
  44
  45 #define OMAP_INTC_START         NR_IRQS
  46
  47 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP2)
  48 int omap2_pm_init(void);
  49 #else
  50 static inline int omap2_pm_init(void)
  51 {
  52         return 0;
  53 }
  54 #endif
  55
  56 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3)
  57 int omap3_pm_init(void);
  58 #else
  59 static inline int omap3_pm_init(void)
  60 {
  61         return 0;
  62 }
  63 #endif
  64
  65 #if defined(CONFIG_PM) && (defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) || defined(CONFIG_SOC_DRA7XX))
  66 int omap4_pm_init(void);
  67 int omap4_pm_init_early(void);
  68 #else
  69 static inline int omap4_pm_init(void)
  70 {
  71         return 0;
  72 }
  73
  74 static inline int omap4_pm_init_early(void)
  75 {
  76         return 0;
  77 }
  78 #endif
  79
  80 #ifdef CONFIG_OMAP_MUX
  81 int omap_mux_late_init(void);
  82 #else
  83 static inline int omap_mux_late_init(void)
  84 {
  85         return 0;
  86 }
  87 #endif
  88
  89 extern void omap2_init_common_infrastructure(void);
  90
  91 extern void omap2_sync32k_timer_init(void);
  92 extern void omap3_sync32k_timer_init(void);
  93 extern void omap3_secure_sync32k_timer_init(void);
  94 extern void omap3_gptimer_timer_init(void);
  95 extern void omap4_local_timer_init(void);
  96 #ifdef CONFIG_CACHE_L2X0
  97 int omap_l2_cache_init(void);
  98 #define OMAP_L2C_AUX_CTRL       (L2C_AUX_CTRL_SHARED_OVERRIDE | \
  99                                  L310_AUX_CTRL_DATA_PREFETCH | \
 100                                  L310_AUX_CTRL_INSTR_PREFETCH)
 101 void omap4_l2c310_write_sec(unsigned long val, unsigned reg);
 102 #else
 103 static inline int omap_l2_cache_init(void)
 104 {
 105         return 0;
 106 }
 107
 108 #define OMAP_L2C_AUX_CTRL       0
 109 #define omap4_l2c310_write_sec  NULL
 110 #endif
 111 extern void omap5_realtime_timer_init(void);
 112
 113 void omap2420_init_early(void);
 114 void omap2430_init_early(void);
 115 void omap3430_init_early(void);
 116 void omap35xx_init_early(void);
 117 void omap3630_init_early(void);
 118 void omap3_init_early(void);    /* Do not use this one */
 119 void am33xx_init_early(void);
 120 void am35xx_init_early(void);
 121 void ti814x_init_early(void);
 122 void ti816x_init_early(void);
 123 void am33xx_init_early(void);
 124 void am43xx_init_early(void);
 125 void am43xx_init_late(void);
 126 void omap4430_init_early(void);
 127 void omap5_init_early(void);
 128 void omap3_init_late(void);     /* Do not use this one */
 129 void omap4430_init_late(void);
 130 void omap2420_init_late(void);
 131 void omap2430_init_late(void);
 132 void omap3430_init_late(void);
 133 void omap35xx_init_late(void);
 134 void omap3630_init_late(void);
 135 void am35xx_init_late(void);
 136 void ti81xx_init_late(void);
 137 void am33xx_init_late(void);
 138 void omap5_init_late(void);
 139 int omap2_common_pm_late_init(void);
 140 void dra7xx_init_early(void);
 141 void dra7xx_init_late(void);
 142
 143 #ifdef CONFIG_SOC_BUS
 144 void omap_soc_device_init(void);
 145 #else
 146 static inline void omap_soc_device_init(void)
 147 {
 148 }
 149 #endif
 150
 151 #if defined(CONFIG_SOC_OMAP2420) || defined(CONFIG_SOC_OMAP2430)
 152 void omap2xxx_restart(enum reboot_mode mode, const char *cmd);
 153 #else
 154 static inline void omap2xxx_restart(enum reboot_mode mode, const char *cmd)
 155 {
 156 }
 157 #endif
 158
 159 #ifdef CONFIG_SOC_AM33XX
 160 void am33xx_restart(enum reboot_mode mode, const char *cmd);
 161 #else
 162 static inline void am33xx_restart(enum reboot_mode mode, const char *cmd)
 163 {
 164 }
 165 #endif
 166
 167 #ifdef CONFIG_ARCH_OMAP3
 168 void omap3xxx_restart(enum reboot_mode mode, const char *cmd);
 169 #else
 170 static inline void omap3xxx_restart(enum reboot_mode mode, const char *cmd)
 171 {
 172 }
 173 #endif
 174
 175 #ifdef CONFIG_SOC_TI81XX
 176 void ti81xx_restart(enum reboot_mode mode, const char *cmd);
 177 #else
 178 static inline void ti81xx_restart(enum reboot_mode mode, const char *cmd)
 179 {
 180 }
 181 #endif
 182
 183 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) || \
 184         defined(CONFIG_SOC_DRA7XX) || defined(CONFIG_SOC_AM43XX)
 185 void omap44xx_restart(enum reboot_mode mode, const char *cmd);
 186 #else
 187 static inline void omap44xx_restart(enum reboot_mode mode, const char *cmd)
 188 {
 189 }
 190 #endif
 191
 192 /* This gets called from mach-omap2/io.c, do not call this */
 193 void __init omap2_set_globals_tap(u32 class, void __iomem *tap);
 194
 195 void __init omap242x_map_io(void);
 196 void __init omap243x_map_io(void);
 197 void __init omap3_map_io(void);
 198 void __init am33xx_map_io(void);
 199 void __init omap4_map_io(void);
 200 void __init omap5_map_io(void);
 201 void __init ti81xx_map_io(void);
 202
 203 /* omap_barriers_init() is OMAP4 only */
 204 void omap_barriers_init(void);
 205
 206 /**
 207  * omap_test_timeout - busy-loop, testing a condition
 208  * @cond: condition to test until it evaluates to true
 209  * @timeout: maximum number of microseconds in the timeout
 210  * @index: loop index (integer)
 211  *
 212  * Loop waiting for @cond to become true or until at least @timeout
 213  * microseconds have passed.  To use, define some integer @index in the
 214  * calling code.  After running, if @index == @timeout, then the loop has
 215  * timed out.
 216  */
 217 #define omap_test_timeout(cond, timeout, index)                 \
 218 ({                                                              \
 219         for (index = 0; index < timeout; index++) {             \
 220                 if (cond)                                       \
 221                         break;                                  \
 222                 udelay(1);                                      \
 223         }                                                       \
 224 })
 225
 226 extern struct device *omap2_get_mpuss_device(void);
 227 extern struct device *omap2_get_iva_device(void);
 228 extern struct device *omap2_get_l3_device(void);
 229 extern struct device *omap4_get_dsp_device(void);
 230
 231 unsigned int omap4_xlate_irq(unsigned int hwirq);
 232 void omap_gic_of_init(void);
 233
 234 #ifdef CONFIG_CACHE_L2X0
 235 extern void __iomem *omap4_get_l2cache_base(void);
 236 #endif
 237
 238 struct device_node;
 239
 240 #ifdef CONFIG_SMP
 241 extern void __iomem *omap4_get_scu_base(void);
 242 #else
 243 static inline void __iomem *omap4_get_scu_base(void)
 244 {
 245         return NULL;
 246 }
 247 #endif
 248
 249 extern void gic_dist_disable(void);
 250 extern void gic_dist_enable(void);
 251 extern bool gic_dist_disabled(void);
 252 extern void gic_timer_retrigger(void);
 253 extern void omap_smc1(u32 fn, u32 arg);
 254 extern void __iomem *omap4_get_sar_ram_base(void);
 255 extern void omap_do_wfi(void);
 256
 257 #ifdef CONFIG_SMP
 258 /* Needed for secondary core boot */
 259 extern void omap4_secondary_startup(void);
 260 extern void omap4460_secondary_startup(void);
 261 extern u32 omap_modify_auxcoreboot0(u32 set_mask, u32 clear_mask);
 262 extern void omap_auxcoreboot_addr(u32 cpu_addr);
 263 extern u32 omap_read_auxcoreboot0(void);
 264
 265 extern void omap4_cpu_die(unsigned int cpu);
 266
 267 extern struct smp_operations omap4_smp_ops;
 268
 269 extern void omap5_secondary_startup(void);
 270 extern void omap5_secondary_hyp_startup(void);
 271 #endif
 272
 273 #if defined(CONFIG_SMP) && defined(CONFIG_PM)
 274 extern int omap4_mpuss_init(void);
 275 extern int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state);
 276 extern int omap4_finish_suspend(unsigned long cpu_state);
 277 extern void omap4_cpu_resume(void);
 278 extern int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state);
 279 #else
 280 static inline int omap4_enter_lowpower(unsigned int cpu,
 281                                         unsigned int power_state)
 282 {
 283         cpu_do_idle();
 284         return 0;
 285 }
 286
 287 static inline int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state)
 288 {
 289         cpu_do_idle();
 290         return 0;
 291 }
 292
 293 static inline int omap4_mpuss_init(void)
 294 {
 295         return 0;
 296 }
 297
 298 static inline int omap4_finish_suspend(unsigned long cpu_state)
 299 {
 300         return 0;
 301 }
 302
 303 static inline void omap4_cpu_resume(void)
 304 {}
 305
 306 #endif
 307
 308 void pdata_quirks_init(const struct of_device_id *);
 309 void omap_auxdata_legacy_init(struct device *dev);
 310 void omap_pcs_legacy_init(int irq, void (*rearm)(void));
 311
 312 struct omap_sdrc_params;
 313 extern void omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0,
 314                                       struct omap_sdrc_params *sdrc_cs1);
 315 struct omap2_hsmmc_info;
 316 extern void omap_reserve(void);
 317
 318 struct omap_hwmod;
 319 extern int omap_dss_reset(struct omap_hwmod *);
 320
 321 /* SoC specific clock initializer */
 322 int omap_clk_init(void);
 323
 324 int __init omapdss_init_of(void);
 325 void __init omapdss_early_init_of(void);
 326
 327 #endif /* __ASSEMBLER__ */
 328 #endif /* __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H */