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 <plat/common.h> 31 #include <asm/proc-fns.h> 32 33 #ifdef CONFIG_SOC_OMAP2420 34 extern void omap242x_map_common_io(void); 35 #else 36 static inline void omap242x_map_common_io(void) 37 { 38 } 39 #endif 40 41 #ifdef CONFIG_SOC_OMAP2430 42 extern void omap243x_map_common_io(void); 43 #else 44 static inline void omap243x_map_common_io(void) 45 { 46 } 47 #endif 48 49 #ifdef CONFIG_ARCH_OMAP3 50 extern void omap34xx_map_common_io(void); 51 #else 52 static inline void omap34xx_map_common_io(void) 53 { 54 } 55 #endif 56 57 #ifdef CONFIG_SOC_OMAPTI81XX 58 extern void omapti81xx_map_common_io(void); 59 #else 60 static inline void omapti81xx_map_common_io(void) 61 { 62 } 63 #endif 64 65 #ifdef CONFIG_SOC_OMAPAM33XX 66 extern void omapam33xx_map_common_io(void); 67 #else 68 static inline void omapam33xx_map_common_io(void) 69 { 70 } 71 #endif 72 73 #ifdef CONFIG_ARCH_OMAP4 74 extern void omap44xx_map_common_io(void); 75 #else 76 static inline void omap44xx_map_common_io(void) 77 { 78 } 79 #endif 80 81 extern void omap2_init_common_infrastructure(void); 82 83 extern struct sys_timer omap2_timer; 84 extern struct sys_timer omap3_timer; 85 extern struct sys_timer omap3_secure_timer; 86 extern struct sys_timer omap4_timer; 87 88 void omap2420_init_early(void); 89 void omap2430_init_early(void); 90 void omap3430_init_early(void); 91 void omap35xx_init_early(void); 92 void omap3630_init_early(void); 93 void omap3_init_early(void); /* Do not use this one */ 94 void am35xx_init_early(void); 95 void ti81xx_init_early(void); 96 void omap4430_init_early(void); 97 void omap_prcm_restart(char, const char *); 98 99 /* 100 * IO bases for various OMAP processors 101 * Except the tap base, rest all the io bases 102 * listed are physical addresses. 103 */ 104 struct omap_globals { 105 u32 class; /* OMAP class to detect */ 106 void __iomem *tap; /* Control module ID code */ 107 void __iomem *sdrc; /* SDRAM Controller */ 108 void __iomem *sms; /* SDRAM Memory Scheduler */ 109 void __iomem *ctrl; /* System Control Module */ 110 void __iomem *ctrl_pad; /* PAD Control Module */ 111 void __iomem *prm; /* Power and Reset Management */ 112 void __iomem *cm; /* Clock Management */ 113 void __iomem *cm2; 114 }; 115 116 void omap2_set_globals_242x(void); 117 void omap2_set_globals_243x(void); 118 void omap2_set_globals_3xxx(void); 119 void omap2_set_globals_443x(void); 120 void omap2_set_globals_ti81xx(void); 121 void omap2_set_globals_am33xx(void); 122 123 /* These get called from omap2_set_globals_xxxx(), do not call these */ 124 void omap2_set_globals_tap(struct omap_globals *); 125 void omap2_set_globals_sdrc(struct omap_globals *); 126 void omap2_set_globals_control(struct omap_globals *); 127 void omap2_set_globals_prcm(struct omap_globals *); 128 129 void omap242x_map_io(void); 130 void omap243x_map_io(void); 131 void omap3_map_io(void); 132 void am33xx_map_io(void); 133 void omap4_map_io(void); 134 void ti81xx_map_io(void); 135 136 /** 137 * omap_test_timeout - busy-loop, testing a condition 138 * @cond: condition to test until it evaluates to true 139 * @timeout: maximum number of microseconds in the timeout 140 * @index: loop index (integer) 141 * 142 * Loop waiting for @cond to become true or until at least @timeout 143 * microseconds have passed. To use, define some integer @index in the 144 * calling code. After running, if @index == @timeout, then the loop has 145 * timed out. 146 */ 147 #define omap_test_timeout(cond, timeout, index) \ 148 ({ \ 149 for (index = 0; index < timeout; index++) { \ 150 if (cond) \ 151 break; \ 152 udelay(1); \ 153 } \ 154 }) 155 156 extern struct device *omap2_get_mpuss_device(void); 157 extern struct device *omap2_get_iva_device(void); 158 extern struct device *omap2_get_l3_device(void); 159 extern struct device *omap4_get_dsp_device(void); 160 161 void omap2_init_irq(void); 162 void omap3_init_irq(void); 163 void ti81xx_init_irq(void); 164 extern int omap_irq_pending(void); 165 void omap_intc_save_context(void); 166 void omap_intc_restore_context(void); 167 void omap3_intc_suspend(void); 168 void omap3_intc_prepare_idle(void); 169 void omap3_intc_resume_idle(void); 170 void omap2_intc_handle_irq(struct pt_regs *regs); 171 void omap3_intc_handle_irq(struct pt_regs *regs); 172 173 #ifdef CONFIG_CACHE_L2X0 174 extern void __iomem *omap4_get_l2cache_base(void); 175 #endif 176 177 #ifdef CONFIG_SMP 178 extern void __iomem *omap4_get_scu_base(void); 179 #else 180 static inline void __iomem *omap4_get_scu_base(void) 181 { 182 return NULL; 183 } 184 #endif 185 186 extern void __init gic_init_irq(void); 187 extern void omap_smc1(u32 fn, u32 arg); 188 extern void __iomem *omap4_get_sar_ram_base(void); 189 extern void omap_do_wfi(void); 190 191 #ifdef CONFIG_SMP 192 /* Needed for secondary core boot */ 193 extern void omap_secondary_startup(void); 194 extern u32 omap_modify_auxcoreboot0(u32 set_mask, u32 clear_mask); 195 extern void omap_auxcoreboot_addr(u32 cpu_addr); 196 extern u32 omap_read_auxcoreboot0(void); 197 #endif 198 199 #if defined(CONFIG_SMP) && defined(CONFIG_PM) 200 extern int omap4_mpuss_init(void); 201 extern int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state); 202 extern int omap4_finish_suspend(unsigned long cpu_state); 203 extern void omap4_cpu_resume(void); 204 extern int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state); 205 extern u32 omap4_mpuss_read_prev_context_state(void); 206 #else 207 static inline int omap4_enter_lowpower(unsigned int cpu, 208 unsigned int power_state) 209 { 210 cpu_do_idle(); 211 return 0; 212 } 213 214 static inline int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state) 215 { 216 cpu_do_idle(); 217 return 0; 218 } 219 220 static inline int omap4_mpuss_init(void) 221 { 222 return 0; 223 } 224 225 static inline int omap4_finish_suspend(unsigned long cpu_state) 226 { 227 return 0; 228 } 229 230 static inline void omap4_cpu_resume(void) 231 {} 232 233 static inline u32 omap4_mpuss_read_prev_context_state(void) 234 { 235 return 0; 236 } 237 #endif 238 #endif /* __ASSEMBLER__ */ 239 #endif /* __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H */ 240