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/twl.h> 32 33 #include <asm/proc-fns.h> 34 35 #include <plat/cpu.h> 36 #include <plat/serial.h> 37 #include <plat/common.h> 38 39 #define OMAP_INTC_START NR_IRQS 40 41 #ifdef CONFIG_SOC_OMAP2420 42 extern void omap242x_map_common_io(void); 43 #else 44 static inline void omap242x_map_common_io(void) 45 { 46 } 47 #endif 48 49 #ifdef CONFIG_SOC_OMAP2430 50 extern void omap243x_map_common_io(void); 51 #else 52 static inline void omap243x_map_common_io(void) 53 { 54 } 55 #endif 56 57 #ifdef CONFIG_ARCH_OMAP3 58 extern void omap34xx_map_common_io(void); 59 #else 60 static inline void omap34xx_map_common_io(void) 61 { 62 } 63 #endif 64 65 #ifdef CONFIG_SOC_TI81XX 66 extern void omapti81xx_map_common_io(void); 67 #else 68 static inline void omapti81xx_map_common_io(void) 69 { 70 } 71 #endif 72 73 #ifdef CONFIG_SOC_AM33XX 74 extern void omapam33xx_map_common_io(void); 75 #else 76 static inline void omapam33xx_map_common_io(void) 77 { 78 } 79 #endif 80 81 #ifdef CONFIG_ARCH_OMAP4 82 extern void omap44xx_map_common_io(void); 83 #else 84 static inline void omap44xx_map_common_io(void) 85 { 86 } 87 #endif 88 89 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP2) 90 int omap2_pm_init(void); 91 #else 92 static inline int omap2_pm_init(void) 93 { 94 return 0; 95 } 96 #endif 97 98 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) 99 int omap3_pm_init(void); 100 #else 101 static inline int omap3_pm_init(void) 102 { 103 return 0; 104 } 105 #endif 106 107 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP4) 108 int omap4_pm_init(void); 109 #else 110 static inline int omap4_pm_init(void) 111 { 112 return 0; 113 } 114 #endif 115 116 #ifdef CONFIG_OMAP_MUX 117 int omap_mux_late_init(void); 118 #else 119 static inline int omap_mux_late_init(void) 120 { 121 return 0; 122 } 123 #endif 124 125 #ifdef CONFIG_SOC_OMAP5 126 extern void omap5_map_common_io(void); 127 #else 128 static inline void omap5_map_common_io(void) 129 { 130 } 131 #endif 132 133 extern void omap2_init_common_infrastructure(void); 134 135 extern struct sys_timer omap2_timer; 136 extern struct sys_timer omap3_timer; 137 extern struct sys_timer omap3_secure_timer; 138 extern struct sys_timer omap3_am33xx_timer; 139 extern struct sys_timer omap4_timer; 140 extern struct sys_timer omap5_timer; 141 142 void omap2420_init_early(void); 143 void omap2430_init_early(void); 144 void omap3430_init_early(void); 145 void omap35xx_init_early(void); 146 void omap3630_init_early(void); 147 void omap3_init_early(void); /* Do not use this one */ 148 void am33xx_init_early(void); 149 void am35xx_init_early(void); 150 void ti81xx_init_early(void); 151 void am33xx_init_early(void); 152 void omap4430_init_early(void); 153 void omap5_init_early(void); 154 void omap3_init_late(void); /* Do not use this one */ 155 void omap4430_init_late(void); 156 void omap2420_init_late(void); 157 void omap2430_init_late(void); 158 void omap3430_init_late(void); 159 void omap35xx_init_late(void); 160 void omap3630_init_late(void); 161 void am35xx_init_late(void); 162 void ti81xx_init_late(void); 163 void omap4430_init_late(void); 164 int omap2_common_pm_late_init(void); 165 void omap_prcm_restart(char, const char *); 166 167 /* 168 * IO bases for various OMAP processors 169 * Except the tap base, rest all the io bases 170 * listed are physical addresses. 171 */ 172 struct omap_globals { 173 u32 class; /* OMAP class to detect */ 174 void __iomem *tap; /* Control module ID code */ 175 void __iomem *sdrc; /* SDRAM Controller */ 176 void __iomem *sms; /* SDRAM Memory Scheduler */ 177 void __iomem *ctrl; /* System Control Module */ 178 void __iomem *ctrl_pad; /* PAD Control Module */ 179 void __iomem *prm; /* Power and Reset Management */ 180 void __iomem *cm; /* Clock Management */ 181 void __iomem *cm2; 182 void __iomem *prcm_mpu; 183 }; 184 185 void omap2_set_globals_242x(void); 186 void omap2_set_globals_243x(void); 187 void omap2_set_globals_3xxx(void); 188 void omap2_set_globals_443x(void); 189 void omap2_set_globals_5xxx(void); 190 void omap2_set_globals_ti81xx(void); 191 void omap2_set_globals_am33xx(void); 192 193 /* These get called from omap2_set_globals_xxxx(), do not call these */ 194 void omap2_set_globals_tap(struct omap_globals *); 195 #if defined(CONFIG_SOC_HAS_OMAP2_SDRC) 196 void omap2_set_globals_sdrc(struct omap_globals *); 197 #else 198 static inline void omap2_set_globals_sdrc(struct omap_globals *omap2_globals) 199 { } 200 #endif 201 void omap2_set_globals_control(struct omap_globals *); 202 void omap2_set_globals_prcm(struct omap_globals *); 203 204 void omap242x_map_io(void); 205 void omap243x_map_io(void); 206 void omap3_map_io(void); 207 void am33xx_map_io(void); 208 void omap4_map_io(void); 209 void omap5_map_io(void); 210 void ti81xx_map_io(void); 211 void omap_barriers_init(void); 212 213 /** 214 * omap_test_timeout - busy-loop, testing a condition 215 * @cond: condition to test until it evaluates to true 216 * @timeout: maximum number of microseconds in the timeout 217 * @index: loop index (integer) 218 * 219 * Loop waiting for @cond to become true or until at least @timeout 220 * microseconds have passed. To use, define some integer @index in the 221 * calling code. After running, if @index == @timeout, then the loop has 222 * timed out. 223 */ 224 #define omap_test_timeout(cond, timeout, index) \ 225 ({ \ 226 for (index = 0; index < timeout; index++) { \ 227 if (cond) \ 228 break; \ 229 udelay(1); \ 230 } \ 231 }) 232 233 extern struct device *omap2_get_mpuss_device(void); 234 extern struct device *omap2_get_iva_device(void); 235 extern struct device *omap2_get_l3_device(void); 236 extern struct device *omap4_get_dsp_device(void); 237 238 void omap2_init_irq(void); 239 void omap3_init_irq(void); 240 void ti81xx_init_irq(void); 241 extern int omap_irq_pending(void); 242 void omap_intc_save_context(void); 243 void omap_intc_restore_context(void); 244 void omap3_intc_suspend(void); 245 void omap3_intc_prepare_idle(void); 246 void omap3_intc_resume_idle(void); 247 void omap2_intc_handle_irq(struct pt_regs *regs); 248 void omap3_intc_handle_irq(struct pt_regs *regs); 249 void omap_intc_of_init(void); 250 void omap_gic_of_init(void); 251 252 #ifdef CONFIG_CACHE_L2X0 253 extern void __iomem *omap4_get_l2cache_base(void); 254 #endif 255 256 struct device_node; 257 #ifdef CONFIG_OF 258 int __init intc_of_init(struct device_node *node, 259 struct device_node *parent); 260 #else 261 int __init intc_of_init(struct device_node *node, 262 struct device_node *parent) 263 { 264 return 0; 265 } 266 #endif 267 268 #ifdef CONFIG_SMP 269 extern void __iomem *omap4_get_scu_base(void); 270 #else 271 static inline void __iomem *omap4_get_scu_base(void) 272 { 273 return NULL; 274 } 275 #endif 276 277 extern void __init gic_init_irq(void); 278 extern void omap_smc1(u32 fn, u32 arg); 279 extern void __iomem *omap4_get_sar_ram_base(void); 280 extern void omap_do_wfi(void); 281 282 #ifdef CONFIG_SMP 283 /* Needed for secondary core boot */ 284 extern void omap_secondary_startup(void); 285 extern u32 omap_modify_auxcoreboot0(u32 set_mask, u32 clear_mask); 286 extern void omap_auxcoreboot_addr(u32 cpu_addr); 287 extern u32 omap_read_auxcoreboot0(void); 288 289 extern void omap4_cpu_die(unsigned int cpu); 290 291 extern struct smp_operations omap4_smp_ops; 292 293 extern void omap5_secondary_startup(void); 294 #endif 295 296 #if defined(CONFIG_SMP) && defined(CONFIG_PM) 297 extern int omap4_mpuss_init(void); 298 extern int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state); 299 extern int omap4_finish_suspend(unsigned long cpu_state); 300 extern void omap4_cpu_resume(void); 301 extern int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state); 302 extern u32 omap4_mpuss_read_prev_context_state(void); 303 #else 304 static inline int omap4_enter_lowpower(unsigned int cpu, 305 unsigned int power_state) 306 { 307 cpu_do_idle(); 308 return 0; 309 } 310 311 static inline int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state) 312 { 313 cpu_do_idle(); 314 return 0; 315 } 316 317 static inline int omap4_mpuss_init(void) 318 { 319 return 0; 320 } 321 322 static inline int omap4_finish_suspend(unsigned long cpu_state) 323 { 324 return 0; 325 } 326 327 static inline void omap4_cpu_resume(void) 328 {} 329 330 static inline u32 omap4_mpuss_read_prev_context_state(void) 331 { 332 return 0; 333 } 334 #endif 335 336 struct omap_sdrc_params; 337 extern void omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0, 338 struct omap_sdrc_params *sdrc_cs1); 339 struct omap2_hsmmc_info; 340 extern int omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers); 341 342 #endif /* __ASSEMBLER__ */ 343 #endif /* __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H */ 344