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Diffstat (limited to 'arch/arm/mach-omap2/omap_opp_data.h')
-rw-r--r-- | arch/arm/mach-omap2/omap_opp_data.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/omap_opp_data.h b/arch/arm/mach-omap2/omap_opp_data.h new file mode 100644 index 000000000000..c784c12f98a1 --- /dev/null +++ b/arch/arm/mach-omap2/omap_opp_data.h | |||
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1 | /* | ||
2 | * OMAP SoC specific OPP Data helpers | ||
3 | * | ||
4 | * Copyright (C) 2009-2010 Texas Instruments Incorporated - http://www.ti.com/ | ||
5 | * Nishanth Menon | ||
6 | * Kevin Hilman | ||
7 | * Copyright (C) 2010 Nokia Corporation. | ||
8 | * Eduardo Valentin | ||
9 | * | ||
10 | * This program is free software; you can redistribute it and/or modify | ||
11 | * it under the terms of the GNU General Public License version 2 as | ||
12 | * published by the Free Software Foundation. | ||
13 | * | ||
14 | * This program is distributed "as is" WITHOUT ANY WARRANTY of any | ||
15 | * kind, whether express or implied; without even the implied warranty | ||
16 | * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
17 | * GNU General Public License for more details. | ||
18 | */ | ||
19 | #ifndef __ARCH_ARM_MACH_OMAP2_OMAP_OPP_DATA_H | ||
20 | #define __ARCH_ARM_MACH_OMAP2_OMAP_OPP_DATA_H | ||
21 | |||
22 | #include <plat/omap_hwmod.h> | ||
23 | |||
24 | #include "voltage.h" | ||
25 | |||
26 | /* | ||
27 | * *BIG FAT WARNING*: | ||
28 | * USE the following ONLY in opp data initialization common to an SoC. | ||
29 | * DO NOT USE these in board files/pm core etc. | ||
30 | */ | ||
31 | |||
32 | /** | ||
33 | * struct omap_opp_def - OMAP OPP Definition | ||
34 | * @hwmod_name: Name of the hwmod for this domain | ||
35 | * @freq: Frequency in hertz corresponding to this OPP | ||
36 | * @u_volt: Nominal voltage in microvolts corresponding to this OPP | ||
37 | * @default_available: True/false - is this OPP available by default | ||
38 | * | ||
39 | * OMAP SOCs have a standard set of tuples consisting of frequency and voltage | ||
40 | * pairs that the device will support per voltage domain. This is called | ||
41 | * Operating Points or OPP. The actual definitions of OMAP Operating Points | ||
42 | * varies over silicon within the same family of devices. For a specific | ||
43 | * domain, you can have a set of {frequency, voltage} pairs and this is denoted | ||
44 | * by an array of omap_opp_def. As the kernel boots and more information is | ||
45 | * available, a set of these are activated based on the precise nature of | ||
46 | * device the kernel boots up on. It is interesting to remember that each IP | ||
47 | * which belongs to a voltage domain may define their own set of OPPs on top | ||
48 | * of this - but this is handled by the appropriate driver. | ||
49 | */ | ||
50 | struct omap_opp_def { | ||
51 | char *hwmod_name; | ||
52 | |||
53 | unsigned long freq; | ||
54 | unsigned long u_volt; | ||
55 | |||
56 | bool default_available; | ||
57 | }; | ||
58 | |||
59 | /* | ||
60 | * Initialization wrapper used to define an OPP for OMAP variants. | ||
61 | */ | ||
62 | #define OPP_INITIALIZER(_hwmod_name, _enabled, _freq, _uv) \ | ||
63 | { \ | ||
64 | .hwmod_name = _hwmod_name, \ | ||
65 | .default_available = _enabled, \ | ||
66 | .freq = _freq, \ | ||
67 | .u_volt = _uv, \ | ||
68 | } | ||
69 | |||
70 | /* | ||
71 | * Initialization wrapper used to define SmartReflex process data | ||
72 | * XXX Is this needed? Just use C99 initializers in data files? | ||
73 | */ | ||
74 | #define VOLT_DATA_DEFINE(_v_nom, _efuse_offs, _errminlimit, _errgain) \ | ||
75 | { \ | ||
76 | .volt_nominal = _v_nom, \ | ||
77 | .sr_efuse_offs = _efuse_offs, \ | ||
78 | .sr_errminlimit = _errminlimit, \ | ||
79 | .vp_errgain = _errgain \ | ||
80 | } | ||
81 | |||
82 | /* Use this to initialize the default table */ | ||
83 | extern int __init omap_init_opp_table(struct omap_opp_def *opp_def, | ||
84 | u32 opp_def_size); | ||
85 | |||
86 | |||
87 | extern struct omap_volt_data omap34xx_vddmpu_volt_data[]; | ||
88 | extern struct omap_volt_data omap34xx_vddcore_volt_data[]; | ||
89 | extern struct omap_volt_data omap36xx_vddmpu_volt_data[]; | ||
90 | extern struct omap_volt_data omap36xx_vddcore_volt_data[]; | ||
91 | |||
92 | extern struct omap_volt_data omap44xx_vdd_mpu_volt_data[]; | ||
93 | extern struct omap_volt_data omap44xx_vdd_iva_volt_data[]; | ||
94 | extern struct omap_volt_data omap44xx_vdd_core_volt_data[]; | ||
95 | |||
96 | #endif /* __ARCH_ARM_MACH_OMAP2_OMAP_OPP_DATA_H */ | ||