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fd1478cd NM |
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 | ||
2a296c8f | 22 | #include "omap_hwmod.h" |
fd1478cd | 23 | |
c0718df4 PW |
24 | #include "voltage.h" |
25 | ||
fd1478cd NM |
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 | ||
c0718df4 PW |
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 | ||
fd1478cd NM |
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 | ||
c0718df4 PW |
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 | ||
df7cded3 VS |
92 | extern struct omap_volt_data omap443x_vdd_mpu_volt_data[]; |
93 | extern struct omap_volt_data omap443x_vdd_iva_volt_data[]; | |
94 | extern struct omap_volt_data omap443x_vdd_core_volt_data[]; | |
95 | extern struct omap_volt_data omap446x_vdd_mpu_volt_data[]; | |
96 | extern struct omap_volt_data omap446x_vdd_iva_volt_data[]; | |
97 | extern struct omap_volt_data omap446x_vdd_core_volt_data[]; | |
c0718df4 | 98 | |
fd1478cd | 99 | #endif /* __ARCH_ARM_MACH_OMAP2_OMAP_OPP_DATA_H */ |