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 /* Use this to initialize the default table */
75 extern int __init omap_init_opp_table(struct omap_opp_def *opp_def,
76 		u32 opp_def_size);
77 
78 
79 extern struct omap_volt_data omap34xx_vddmpu_volt_data[];
80 extern struct omap_volt_data omap34xx_vddcore_volt_data[];
81 extern struct omap_volt_data omap36xx_vddmpu_volt_data[];
82 extern struct omap_volt_data omap36xx_vddcore_volt_data[];
83 
84 extern struct omap_volt_data omap443x_vdd_mpu_volt_data[];
85 extern struct omap_volt_data omap443x_vdd_iva_volt_data[];
86 extern struct omap_volt_data omap443x_vdd_core_volt_data[];
87 extern struct omap_volt_data omap446x_vdd_mpu_volt_data[];
88 extern struct omap_volt_data omap446x_vdd_iva_volt_data[];
89 extern struct omap_volt_data omap446x_vdd_core_volt_data[];
90 
91 #endif		/* __ARCH_ARM_MACH_OMAP2_OMAP_OPP_DATA_H */
92