ARM: OMAP: Convert to use ->reserve method to reserve boot time memory
[deliverable/linux.git] / arch / arm / plat-omap / include / plat / common.h
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5e1c5ff4 1/*
a09e64fb 2 * arch/arm/plat-omap/include/mach/common.h
5e1c5ff4
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3 *
4 * Header for code common to all OMAP machines.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2 of the License, or (at your
9 * option) any later version.
10 *
11 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
12 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
14 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
15 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
16 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
17 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
18 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
19 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
20 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
21 *
22 * You should have received a copy of the GNU General Public License along
23 * with this program; if not, write to the Free Software Foundation, Inc.,
24 * 675 Mass Ave, Cambridge, MA 02139, USA.
25 */
26
27#ifndef __ARCH_ARM_MACH_OMAP_COMMON_H
28#define __ARCH_ARM_MACH_OMAP_COMMON_H
29
b63128e8 30#include <plat/i2c.h>
85d05fb3 31
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32struct sys_timer;
33
34extern void omap_map_common_io(void);
35extern struct sys_timer omap_timer;
5e1c5ff4 36
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37extern void omap_reserve(void);
38
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39/*
40 * IO bases for various OMAP processors
41 * Except the tap base, rest all the io bases
42 * listed are physical addresses.
43 */
a58caad1 44struct omap_globals {
0e564848 45 u32 class; /* OMAP class to detect */
a58caad1 46 void __iomem *tap; /* Control module ID code */
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47 unsigned long sdrc; /* SDRAM Controller */
48 unsigned long sms; /* SDRAM Memory Scheduler */
49 unsigned long ctrl; /* System Control Module */
50 unsigned long prm; /* Power and Reset Management */
51 unsigned long cm; /* Clock Management */
52 unsigned long cm2;
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53 unsigned long uart1_phys;
54 unsigned long uart2_phys;
55 unsigned long uart3_phys;
56 unsigned long uart4_phys;
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57};
58
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59void omap2_set_globals_242x(void);
60void omap2_set_globals_243x(void);
61void omap2_set_globals_343x(void);
4f2c49fe 62void omap2_set_globals_36xx(void);
44169075 63void omap2_set_globals_443x(void);
c8d2eb8e 64
a58caad1 65/* These get called from omap2_set_globals_xxxx(), do not call these */
0e564848 66void omap2_set_globals_tap(struct omap_globals *);
f2ab9977 67void omap2_set_globals_sdrc(struct omap_globals *);
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68void omap2_set_globals_control(struct omap_globals *);
69void omap2_set_globals_prcm(struct omap_globals *);
4f2c49fe 70void omap2_set_globals_uart(struct omap_globals *);
a58caad1 71
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72/**
73 * omap_test_timeout - busy-loop, testing a condition
74 * @cond: condition to test until it evaluates to true
75 * @timeout: maximum number of microseconds in the timeout
76 * @index: loop index (integer)
77 *
78 * Loop waiting for @cond to become true or until at least @timeout
79 * microseconds have passed. To use, define some integer @index in the
80 * calling code. After running, if @index == @timeout, then the loop has
81 * timed out.
82 */
83#define omap_test_timeout(cond, timeout, index) \
84({ \
85 for (index = 0; index < timeout; index++) { \
86 if (cond) \
87 break; \
88 udelay(1); \
89 } \
90})
91
5e1c5ff4 92#endif /* __ARCH_ARM_MACH_OMAP_COMMON_H */
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