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 28 #include <linux/delay.h> 29 #include <plat/common.h> 30 31 #ifdef CONFIG_SOC_OMAP2420 32 extern void omap242x_map_common_io(void); 33 #else 34 static inline void omap242x_map_common_io(void) 35 { 36 } 37 #endif 38 39 #ifdef CONFIG_SOC_OMAP2430 40 extern void omap243x_map_common_io(void); 41 #else 42 static inline void omap243x_map_common_io(void) 43 { 44 } 45 #endif 46 47 #ifdef CONFIG_ARCH_OMAP3 48 extern void omap34xx_map_common_io(void); 49 #else 50 static inline void omap34xx_map_common_io(void) 51 { 52 } 53 #endif 54 55 #ifdef CONFIG_SOC_OMAPTI81XX 56 extern void omapti81xx_map_common_io(void); 57 #else 58 static inline void omapti81xx_map_common_io(void) 59 { 60 } 61 #endif 62 63 #ifdef CONFIG_SOC_OMAPAM33XX 64 extern void omapam33xx_map_common_io(void); 65 #else 66 static inline void omapam33xx_map_common_io(void) 67 { 68 } 69 #endif 70 71 #ifdef CONFIG_ARCH_OMAP4 72 extern void omap44xx_map_common_io(void); 73 #else 74 static inline void omap44xx_map_common_io(void) 75 { 76 } 77 #endif 78 79 extern void omap2_init_common_infrastructure(void); 80 81 extern struct sys_timer omap2_timer; 82 extern struct sys_timer omap3_timer; 83 extern struct sys_timer omap3_secure_timer; 84 extern struct sys_timer omap4_timer; 85 86 void omap2420_init_early(void); 87 void omap2430_init_early(void); 88 void omap3430_init_early(void); 89 void omap35xx_init_early(void); 90 void omap3630_init_early(void); 91 void omap3_init_early(void); /* Do not use this one */ 92 void am35xx_init_early(void); 93 void ti81xx_init_early(void); 94 void omap4430_init_early(void); 95 96 /* 97 * IO bases for various OMAP processors 98 * Except the tap base, rest all the io bases 99 * listed are physical addresses. 100 */ 101 struct omap_globals { 102 u32 class; /* OMAP class to detect */ 103 void __iomem *tap; /* Control module ID code */ 104 void __iomem *sdrc; /* SDRAM Controller */ 105 void __iomem *sms; /* SDRAM Memory Scheduler */ 106 void __iomem *ctrl; /* System Control Module */ 107 void __iomem *ctrl_pad; /* PAD Control Module */ 108 void __iomem *prm; /* Power and Reset Management */ 109 void __iomem *cm; /* Clock Management */ 110 void __iomem *cm2; 111 }; 112 113 void omap2_set_globals_242x(void); 114 void omap2_set_globals_243x(void); 115 void omap2_set_globals_3xxx(void); 116 void omap2_set_globals_443x(void); 117 void omap2_set_globals_ti81xx(void); 118 void omap2_set_globals_am33xx(void); 119 120 /* These get called from omap2_set_globals_xxxx(), do not call these */ 121 void omap2_set_globals_tap(struct omap_globals *); 122 void omap2_set_globals_sdrc(struct omap_globals *); 123 void omap2_set_globals_control(struct omap_globals *); 124 void omap2_set_globals_prcm(struct omap_globals *); 125 126 void omap242x_map_io(void); 127 void omap243x_map_io(void); 128 void omap3_map_io(void); 129 void am33xx_map_io(void); 130 void omap4_map_io(void); 131 void ti81xx_map_io(void); 132 133 /** 134 * omap_test_timeout - busy-loop, testing a condition 135 * @cond: condition to test until it evaluates to true 136 * @timeout: maximum number of microseconds in the timeout 137 * @index: loop index (integer) 138 * 139 * Loop waiting for @cond to become true or until at least @timeout 140 * microseconds have passed. To use, define some integer @index in the 141 * calling code. After running, if @index == @timeout, then the loop has 142 * timed out. 143 */ 144 #define omap_test_timeout(cond, timeout, index) \ 145 ({ \ 146 for (index = 0; index < timeout; index++) { \ 147 if (cond) \ 148 break; \ 149 udelay(1); \ 150 } \ 151 }) 152 153 extern struct device *omap2_get_mpuss_device(void); 154 extern struct device *omap2_get_iva_device(void); 155 extern struct device *omap2_get_l3_device(void); 156 extern struct device *omap4_get_dsp_device(void); 157 158 void omap2_init_irq(void); 159 void omap3_init_irq(void); 160 void ti81xx_init_irq(void); 161 extern int omap_irq_pending(void); 162 void omap_intc_save_context(void); 163 void omap_intc_restore_context(void); 164 void omap3_intc_suspend(void); 165 void omap3_intc_prepare_idle(void); 166 void omap3_intc_resume_idle(void); 167 void omap2_intc_handle_irq(struct pt_regs *regs); 168 void omap3_intc_handle_irq(struct pt_regs *regs); 169 170 /* 171 * wfi used in low power code. Directly opcode is used instead 172 * of instruction to avoid mulit-omap build break 173 */ 174 #ifdef CONFIG_THUMB2_KERNEL 175 #define do_wfi() __asm__ __volatile__ ("wfi" : : : "memory") 176 #else 177 #define do_wfi() \ 178 __asm__ __volatile__ (".word 0xe320f003" : : : "memory") 179 #endif 180 181 #ifdef CONFIG_CACHE_L2X0 182 extern void __iomem *l2cache_base; 183 #endif 184 185 extern void __init gic_init_irq(void); 186 extern void omap_smc1(u32 fn, u32 arg); 187 188 #ifdef CONFIG_SMP 189 /* Needed for secondary core boot */ 190 extern void omap_secondary_startup(void); 191 extern u32 omap_modify_auxcoreboot0(u32 set_mask, u32 clear_mask); 192 extern void omap_auxcoreboot_addr(u32 cpu_addr); 193 extern u32 omap_read_auxcoreboot0(void); 194 #endif 195 196 #endif /* __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H */ 197