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