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_OMAPTI81XX 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_OMAPAM33XX 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 extern void omap2_init_common_infrastructure(void); 83 84 extern struct sys_timer omap2_timer; 85 extern struct sys_timer omap3_timer; 86 extern struct sys_timer omap3_secure_timer; 87 extern struct sys_timer omap4_timer; 88 89 void omap2420_init_early(void); 90 void omap2430_init_early(void); 91 void omap3430_init_early(void); 92 void omap35xx_init_early(void); 93 void omap3630_init_early(void); 94 void omap3_init_early(void); /* Do not use this one */ 95 void am35xx_init_early(void); 96 void ti81xx_init_early(void); 97 void omap4430_init_early(void); 98 void omap_prcm_restart(char, const char *); 99 100 /* 101 * IO bases for various OMAP processors 102 * Except the tap base, rest all the io bases 103 * listed are physical addresses. 104 */ 105 struct omap_globals { 106 u32 class; /* OMAP class to detect */ 107 void __iomem *tap; /* Control module ID code */ 108 void __iomem *sdrc; /* SDRAM Controller */ 109 void __iomem *sms; /* SDRAM Memory Scheduler */ 110 void __iomem *ctrl; /* System Control Module */ 111 void __iomem *ctrl_pad; /* PAD Control Module */ 112 void __iomem *prm; /* Power and Reset Management */ 113 void __iomem *cm; /* Clock Management */ 114 void __iomem *cm2; 115 void __iomem *prcm_mpu; 116 }; 117 118 void omap2_set_globals_242x(void); 119 void omap2_set_globals_243x(void); 120 void omap2_set_globals_3xxx(void); 121 void omap2_set_globals_443x(void); 122 void omap2_set_globals_ti81xx(void); 123 void omap2_set_globals_am33xx(void); 124 125 /* These get called from omap2_set_globals_xxxx(), do not call these */ 126 void omap2_set_globals_tap(struct omap_globals *); 127 void omap2_set_globals_sdrc(struct omap_globals *); 128 void omap2_set_globals_control(struct omap_globals *); 129 void omap2_set_globals_prcm(struct omap_globals *); 130 131 void omap242x_map_io(void); 132 void omap243x_map_io(void); 133 void omap3_map_io(void); 134 void am33xx_map_io(void); 135 void omap4_map_io(void); 136 void ti81xx_map_io(void); 137 void omap_barriers_init(void); 138 139 extern void __init omap_init_consistent_dma_size(void); 140 141 /** 142 * omap_test_timeout - busy-loop, testing a condition 143 * @cond: condition to test until it evaluates to true 144 * @timeout: maximum number of microseconds in the timeout 145 * @index: loop index (integer) 146 * 147 * Loop waiting for @cond to become true or until at least @timeout 148 * microseconds have passed. To use, define some integer @index in the 149 * calling code. After running, if @index == @timeout, then the loop has 150 * timed out. 151 */ 152 #define omap_test_timeout(cond, timeout, index) \ 153 ({ \ 154 for (index = 0; index < timeout; index++) { \ 155 if (cond) \ 156 break; \ 157 udelay(1); \ 158 } \ 159 }) 160 161 extern struct device *omap2_get_mpuss_device(void); 162 extern struct device *omap2_get_iva_device(void); 163 extern struct device *omap2_get_l3_device(void); 164 extern struct device *omap4_get_dsp_device(void); 165 166 void omap2_init_irq(void); 167 void omap3_init_irq(void); 168 void ti81xx_init_irq(void); 169 extern int omap_irq_pending(void); 170 void omap_intc_save_context(void); 171 void omap_intc_restore_context(void); 172 void omap3_intc_suspend(void); 173 void omap3_intc_prepare_idle(void); 174 void omap3_intc_resume_idle(void); 175 void omap2_intc_handle_irq(struct pt_regs *regs); 176 void omap3_intc_handle_irq(struct pt_regs *regs); 177 178 #ifdef CONFIG_CACHE_L2X0 179 extern void __iomem *omap4_get_l2cache_base(void); 180 #endif 181 182 struct device_node; 183 #ifdef CONFIG_OF 184 int __init omap_intc_of_init(struct device_node *node, 185 struct device_node *parent); 186 #else 187 int __init omap_intc_of_init(struct device_node *node, 188 struct device_node *parent) 189 { 190 return 0; 191 } 192 #endif 193 194 #ifdef CONFIG_SMP 195 extern void __iomem *omap4_get_scu_base(void); 196 #else 197 static inline void __iomem *omap4_get_scu_base(void) 198 { 199 return NULL; 200 } 201 #endif 202 203 extern void __init gic_init_irq(void); 204 extern void omap_smc1(u32 fn, u32 arg); 205 extern void __iomem *omap4_get_sar_ram_base(void); 206 extern void omap_do_wfi(void); 207 208 #ifdef CONFIG_SMP 209 /* Needed for secondary core boot */ 210 extern void omap_secondary_startup(void); 211 extern u32 omap_modify_auxcoreboot0(u32 set_mask, u32 clear_mask); 212 extern void omap_auxcoreboot_addr(u32 cpu_addr); 213 extern u32 omap_read_auxcoreboot0(void); 214 #endif 215 216 #if defined(CONFIG_SMP) && defined(CONFIG_PM) 217 extern int omap4_mpuss_init(void); 218 extern int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state); 219 extern int omap4_finish_suspend(unsigned long cpu_state); 220 extern void omap4_cpu_resume(void); 221 extern int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state); 222 extern u32 omap4_mpuss_read_prev_context_state(void); 223 #else 224 static inline int omap4_enter_lowpower(unsigned int cpu, 225 unsigned int power_state) 226 { 227 cpu_do_idle(); 228 return 0; 229 } 230 231 static inline int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state) 232 { 233 cpu_do_idle(); 234 return 0; 235 } 236 237 static inline int omap4_mpuss_init(void) 238 { 239 return 0; 240 } 241 242 static inline int omap4_finish_suspend(unsigned long cpu_state) 243 { 244 return 0; 245 } 246 247 static inline void omap4_cpu_resume(void) 248 {} 249 250 static inline u32 omap4_mpuss_read_prev_context_state(void) 251 { 252 return 0; 253 } 254 #endif 255 256 struct omap_sdrc_params; 257 extern void omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0, 258 struct omap_sdrc_params *sdrc_cs1); 259 struct omap2_hsmmc_info; 260 extern int omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers); 261 262 #endif /* __ASSEMBLER__ */ 263 #endif /* __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H */ 264