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/delay.h> 30 #include <linux/i2c/twl.h> 31 #include <plat/common.h> 32 #include <asm/proc-fns.h> 33 34 #ifdef CONFIG_SOC_OMAP2420 35 extern void omap242x_map_common_io(void); 36 #else 37 static inline void omap242x_map_common_io(void) 38 { 39 } 40 #endif 41 42 #ifdef CONFIG_SOC_OMAP2430 43 extern void omap243x_map_common_io(void); 44 #else 45 static inline void omap243x_map_common_io(void) 46 { 47 } 48 #endif 49 50 #ifdef CONFIG_ARCH_OMAP3 51 extern void omap34xx_map_common_io(void); 52 #else 53 static inline void omap34xx_map_common_io(void) 54 { 55 } 56 #endif 57 58 #ifdef CONFIG_SOC_TI81XX 59 extern void omapti81xx_map_common_io(void); 60 #else 61 static inline void omapti81xx_map_common_io(void) 62 { 63 } 64 #endif 65 66 #ifdef CONFIG_SOC_AM33XX 67 extern void omapam33xx_map_common_io(void); 68 #else 69 static inline void omapam33xx_map_common_io(void) 70 { 71 } 72 #endif 73 74 #ifdef CONFIG_ARCH_OMAP4 75 extern void omap44xx_map_common_io(void); 76 #else 77 static inline void omap44xx_map_common_io(void) 78 { 79 } 80 #endif 81 82 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP2) 83 int omap2_pm_init(void); 84 #else 85 static inline int omap2_pm_init(void) 86 { 87 return 0; 88 } 89 #endif 90 91 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) 92 int omap3_pm_init(void); 93 #else 94 static inline int omap3_pm_init(void) 95 { 96 return 0; 97 } 98 #endif 99 100 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP4) 101 int omap4_pm_init(void); 102 #else 103 static inline int omap4_pm_init(void) 104 { 105 return 0; 106 } 107 #endif 108 109 #ifdef CONFIG_OMAP_MUX 110 int omap_mux_late_init(void); 111 #else 112 static inline int omap_mux_late_init(void) 113 { 114 return 0; 115 } 116 #endif 117 118 extern void omap2_init_common_infrastructure(void); 119 120 extern struct sys_timer omap2_timer; 121 extern struct sys_timer omap3_timer; 122 extern struct sys_timer omap3_secure_timer; 123 extern struct sys_timer omap4_timer; 124 125 void omap2420_init_early(void); 126 void omap2430_init_early(void); 127 void omap3430_init_early(void); 128 void omap35xx_init_early(void); 129 void omap3630_init_early(void); 130 void omap3_init_early(void); /* Do not use this one */ 131 void am35xx_init_early(void); 132 void ti81xx_init_early(void); 133 void omap4430_init_early(void); 134 void omap3_init_late(void); /* Do not use this one */ 135 void omap4430_init_late(void); 136 void omap2420_init_late(void); 137 void omap2430_init_late(void); 138 void omap3430_init_late(void); 139 void omap35xx_init_late(void); 140 void omap3630_init_late(void); 141 void am35xx_init_late(void); 142 void ti81xx_init_late(void); 143 void omap4430_init_late(void); 144 int omap2_common_pm_late_init(void); 145 void omap_prcm_restart(char, const char *); 146 147 /* 148 * IO bases for various OMAP processors 149 * Except the tap base, rest all the io bases 150 * listed are physical addresses. 151 */ 152 struct omap_globals { 153 u32 class; /* OMAP class to detect */ 154 void __iomem *tap; /* Control module ID code */ 155 void __iomem *sdrc; /* SDRAM Controller */ 156 void __iomem *sms; /* SDRAM Memory Scheduler */ 157 void __iomem *ctrl; /* System Control Module */ 158 void __iomem *ctrl_pad; /* PAD Control Module */ 159 void __iomem *prm; /* Power and Reset Management */ 160 void __iomem *cm; /* Clock Management */ 161 void __iomem *cm2; 162 void __iomem *prcm_mpu; 163 }; 164 165 void omap2_set_globals_242x(void); 166 void omap2_set_globals_243x(void); 167 void omap2_set_globals_3xxx(void); 168 void omap2_set_globals_443x(void); 169 void omap2_set_globals_ti81xx(void); 170 void omap2_set_globals_am33xx(void); 171 172 /* These get called from omap2_set_globals_xxxx(), do not call these */ 173 void omap2_set_globals_tap(struct omap_globals *); 174 void omap2_set_globals_sdrc(struct omap_globals *); 175 void omap2_set_globals_control(struct omap_globals *); 176 void omap2_set_globals_prcm(struct omap_globals *); 177 178 void omap242x_map_io(void); 179 void omap243x_map_io(void); 180 void omap3_map_io(void); 181 void am33xx_map_io(void); 182 void omap4_map_io(void); 183 void ti81xx_map_io(void); 184 void omap_barriers_init(void); 185 186 /** 187 * omap_test_timeout - busy-loop, testing a condition 188 * @cond: condition to test until it evaluates to true 189 * @timeout: maximum number of microseconds in the timeout 190 * @index: loop index (integer) 191 * 192 * Loop waiting for @cond to become true or until at least @timeout 193 * microseconds have passed. To use, define some integer @index in the 194 * calling code. After running, if @index == @timeout, then the loop has 195 * timed out. 196 */ 197 #define omap_test_timeout(cond, timeout, index) \ 198 ({ \ 199 for (index = 0; index < timeout; index++) { \ 200 if (cond) \ 201 break; \ 202 udelay(1); \ 203 } \ 204 }) 205 206 extern struct device *omap2_get_mpuss_device(void); 207 extern struct device *omap2_get_iva_device(void); 208 extern struct device *omap2_get_l3_device(void); 209 extern struct device *omap4_get_dsp_device(void); 210 211 void omap2_init_irq(void); 212 void omap3_init_irq(void); 213 void ti81xx_init_irq(void); 214 extern int omap_irq_pending(void); 215 void omap_intc_save_context(void); 216 void omap_intc_restore_context(void); 217 void omap3_intc_suspend(void); 218 void omap3_intc_prepare_idle(void); 219 void omap3_intc_resume_idle(void); 220 void omap2_intc_handle_irq(struct pt_regs *regs); 221 void omap3_intc_handle_irq(struct pt_regs *regs); 222 223 #ifdef CONFIG_CACHE_L2X0 224 extern void __iomem *omap4_get_l2cache_base(void); 225 #endif 226 227 struct device_node; 228 #ifdef CONFIG_OF 229 int __init omap_intc_of_init(struct device_node *node, 230 struct device_node *parent); 231 #else 232 int __init omap_intc_of_init(struct device_node *node, 233 struct device_node *parent) 234 { 235 return 0; 236 } 237 #endif 238 239 #ifdef CONFIG_SMP 240 extern void __iomem *omap4_get_scu_base(void); 241 #else 242 static inline void __iomem *omap4_get_scu_base(void) 243 { 244 return NULL; 245 } 246 #endif 247 248 extern void __init gic_init_irq(void); 249 extern void omap_smc1(u32 fn, u32 arg); 250 extern void __iomem *omap4_get_sar_ram_base(void); 251 extern void omap_do_wfi(void); 252 253 #ifdef CONFIG_SMP 254 /* Needed for secondary core boot */ 255 extern void omap_secondary_startup(void); 256 extern u32 omap_modify_auxcoreboot0(u32 set_mask, u32 clear_mask); 257 extern void omap_auxcoreboot_addr(u32 cpu_addr); 258 extern u32 omap_read_auxcoreboot0(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 extern u32 omap4_mpuss_read_prev_context_state(void); 268 #else 269 static inline int omap4_enter_lowpower(unsigned int cpu, 270 unsigned int power_state) 271 { 272 cpu_do_idle(); 273 return 0; 274 } 275 276 static inline int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state) 277 { 278 cpu_do_idle(); 279 return 0; 280 } 281 282 static inline int omap4_mpuss_init(void) 283 { 284 return 0; 285 } 286 287 static inline int omap4_finish_suspend(unsigned long cpu_state) 288 { 289 return 0; 290 } 291 292 static inline void omap4_cpu_resume(void) 293 {} 294 295 static inline u32 omap4_mpuss_read_prev_context_state(void) 296 { 297 return 0; 298 } 299 #endif 300 301 struct omap_sdrc_params; 302 extern void omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0, 303 struct omap_sdrc_params *sdrc_cs1); 304 struct omap2_hsmmc_info; 305 extern int omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers); 306 307 #endif /* __ASSEMBLER__ */ 308 #endif /* __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H */ 309