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
omap242x_map_common_io(void)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
omap243x_map_common_io(void)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
omap34xx_map_common_io(void)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
omapti81xx_map_common_io(void)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
omapam33xx_map_common_io(void)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
omap44xx_map_common_io(void)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 void omap_barriers_init(void);
136
137 extern void __init omap_init_consistent_dma_size(void);
138
139 /**
140 * omap_test_timeout - busy-loop, testing a condition
141 * @cond: condition to test until it evaluates to true
142 * @timeout: maximum number of microseconds in the timeout
143 * @index: loop index (integer)
144 *
145 * Loop waiting for @cond to become true or until at least @timeout
146 * microseconds have passed. To use, define some integer @index in the
147 * calling code. After running, if @index == @timeout, then the loop has
148 * timed out.
149 */
150 #define omap_test_timeout(cond, timeout, index) \
151 ({ \
152 for (index = 0; index < timeout; index++) { \
153 if (cond) \
154 break; \
155 udelay(1); \
156 } \
157 })
158
159 extern struct device *omap2_get_mpuss_device(void);
160 extern struct device *omap2_get_iva_device(void);
161 extern struct device *omap2_get_l3_device(void);
162 extern struct device *omap4_get_dsp_device(void);
163
164 void omap2_init_irq(void);
165 void omap3_init_irq(void);
166 void ti81xx_init_irq(void);
167 extern int omap_irq_pending(void);
168 void omap_intc_save_context(void);
169 void omap_intc_restore_context(void);
170 void omap3_intc_suspend(void);
171 void omap3_intc_prepare_idle(void);
172 void omap3_intc_resume_idle(void);
173 void omap2_intc_handle_irq(struct pt_regs *regs);
174 void omap3_intc_handle_irq(struct pt_regs *regs);
175
176 #ifdef CONFIG_CACHE_L2X0
177 extern void __iomem *omap4_get_l2cache_base(void);
178 #endif
179
180 struct device_node;
181 #ifdef CONFIG_OF
182 int __init omap_intc_of_init(struct device_node *node,
183 struct device_node *parent);
184 #else
omap_intc_of_init(struct device_node * node,struct device_node * parent)185 int __init omap_intc_of_init(struct device_node *node,
186 struct device_node *parent)
187 {
188 return 0;
189 }
190 #endif
191
192 #ifdef CONFIG_SMP
193 extern void __iomem *omap4_get_scu_base(void);
194 #else
omap4_get_scu_base(void)195 static inline void __iomem *omap4_get_scu_base(void)
196 {
197 return NULL;
198 }
199 #endif
200
201 extern void __init gic_init_irq(void);
202 extern void omap_smc1(u32 fn, u32 arg);
203 extern void __iomem *omap4_get_sar_ram_base(void);
204 extern void omap_do_wfi(void);
205
206 #ifdef CONFIG_SMP
207 /* Needed for secondary core boot */
208 extern void omap_secondary_startup(void);
209 extern u32 omap_modify_auxcoreboot0(u32 set_mask, u32 clear_mask);
210 extern void omap_auxcoreboot_addr(u32 cpu_addr);
211 extern u32 omap_read_auxcoreboot0(void);
212 #endif
213
214 #if defined(CONFIG_SMP) && defined(CONFIG_PM)
215 extern int omap4_mpuss_init(void);
216 extern int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state);
217 extern int omap4_finish_suspend(unsigned long cpu_state);
218 extern void omap4_cpu_resume(void);
219 extern int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state);
220 extern u32 omap4_mpuss_read_prev_context_state(void);
221 #else
omap4_enter_lowpower(unsigned int cpu,unsigned int power_state)222 static inline int omap4_enter_lowpower(unsigned int cpu,
223 unsigned int power_state)
224 {
225 cpu_do_idle();
226 return 0;
227 }
228
omap4_hotplug_cpu(unsigned int cpu,unsigned int power_state)229 static inline int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state)
230 {
231 cpu_do_idle();
232 return 0;
233 }
234
omap4_mpuss_init(void)235 static inline int omap4_mpuss_init(void)
236 {
237 return 0;
238 }
239
omap4_finish_suspend(unsigned long cpu_state)240 static inline int omap4_finish_suspend(unsigned long cpu_state)
241 {
242 return 0;
243 }
244
omap4_cpu_resume(void)245 static inline void omap4_cpu_resume(void)
246 {}
247
omap4_mpuss_read_prev_context_state(void)248 static inline u32 omap4_mpuss_read_prev_context_state(void)
249 {
250 return 0;
251 }
252 #endif
253
254 struct omap_sdrc_params;
255 extern void omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0,
256 struct omap_sdrc_params *sdrc_cs1);
257
258 #endif /* __ASSEMBLER__ */
259 #endif /* __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H */
260