1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * OMAP SoC specific OPP Data helpers
4 *
5 * Copyright (C) 2009-2010 Texas Instruments Incorporated - https://www.ti.com/
6 * Nishanth Menon
7 * Kevin Hilman
8 * Copyright (C) 2010 Nokia Corporation.
9 * Eduardo Valentin
10 */
11 #ifndef __ARCH_ARM_MACH_OMAP2_OMAP_OPP_DATA_H
12 #define __ARCH_ARM_MACH_OMAP2_OMAP_OPP_DATA_H
13
14 #include "omap_hwmod.h"
15
16 #include "voltage.h"
17
18 /*
19 * *BIG FAT WARNING*:
20 * USE the following ONLY in opp data initialization common to an SoC.
21 * DO NOT USE these in board files/pm core etc.
22 */
23
24 /**
25 * struct omap_opp_def - OMAP OPP Definition
26 * @hwmod_name: Name of the hwmod for this domain
27 * @freq: Frequency in hertz corresponding to this OPP
28 * @u_volt: Nominal voltage in microvolts corresponding to this OPP
29 * @default_available: True/false - is this OPP available by default
30 *
31 * OMAP SOCs have a standard set of tuples consisting of frequency and voltage
32 * pairs that the device will support per voltage domain. This is called
33 * Operating Points or OPP. The actual definitions of OMAP Operating Points
34 * varies over silicon within the same family of devices. For a specific
35 * domain, you can have a set of {frequency, voltage} pairs and this is denoted
36 * by an array of omap_opp_def. As the kernel boots and more information is
37 * available, a set of these are activated based on the precise nature of
38 * device the kernel boots up on. It is interesting to remember that each IP
39 * which belongs to a voltage domain may define their own set of OPPs on top
40 * of this - but this is handled by the appropriate driver.
41 */
42 struct omap_opp_def {
43 char *hwmod_name;
44
45 unsigned long freq;
46 unsigned long u_volt;
47
48 bool default_available;
49 };
50
51 /*
52 * Initialization wrapper used to define an OPP for OMAP variants.
53 */
54 #define OPP_INITIALIZER(_hwmod_name, _enabled, _freq, _uv) \
55 { \
56 .hwmod_name = _hwmod_name, \
57 .default_available = _enabled, \
58 .freq = _freq, \
59 .u_volt = _uv, \
60 }
61
62 /*
63 * Initialization wrapper used to define SmartReflex process data
64 * XXX Is this needed? Just use C99 initializers in data files?
65 */
66 #define VOLT_DATA_DEFINE(_v_nom, _efuse_offs, _errminlimit, _errgain) \
67 { \
68 .volt_nominal = _v_nom, \
69 .sr_efuse_offs = _efuse_offs, \
70 .sr_errminlimit = _errminlimit, \
71 .vp_errgain = _errgain \
72 }
73
74 extern struct omap_volt_data omap34xx_vddmpu_volt_data[];
75 extern struct omap_volt_data omap34xx_vddcore_volt_data[];
76 extern struct omap_volt_data omap36xx_vddmpu_volt_data[];
77 extern struct omap_volt_data omap36xx_vddcore_volt_data[];
78
79 extern struct omap_volt_data omap443x_vdd_mpu_volt_data[];
80 extern struct omap_volt_data omap443x_vdd_iva_volt_data[];
81 extern struct omap_volt_data omap443x_vdd_core_volt_data[];
82 extern struct omap_volt_data omap446x_vdd_mpu_volt_data[];
83 extern struct omap_volt_data omap446x_vdd_iva_volt_data[];
84 extern struct omap_volt_data omap446x_vdd_core_volt_data[];
85
86 #endif /* __ARCH_ARM_MACH_OMAP2_OMAP_OPP_DATA_H */
87
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