include/k3-dev.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * Texas Instruments K3 Device Platform Data
   4  *
   5  * Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/
   6  */
   7 #ifndef __K3_DEV_H__
   8 #define __K3_DEV_H__
   9
  10 #include <asm/io.h>
  11 #include <linux/types.h>
  12 #include <stdint.h>
  13
  14 #define LPSC_MODULE_EXISTS      BIT(0)
  15 #define LPSC_NO_CLOCK_GATING    BIT(1)
  16 #define LPSC_DEPENDS            BIT(2)
  17 #define LPSC_HAS_RESET_ISO      BIT(3)
  18 #define LPSC_HAS_LOCAL_RESET    BIT(4)
  19 #define LPSC_NO_MODULE_RESET    BIT(5)
  20
  21 #define PSC_PD_EXISTS           BIT(0)
  22 #define PSC_PD_ALWAYSON         BIT(1)
  23 #define PSC_PD_DEPENDS          BIT(2)
  24
  25 #define MDSTAT_STATE_MASK               0x3f
  26 #define MDSTAT_BUSY_MASK                0x30
  27 #define MDSTAT_STATE_SWRSTDISABLE       0x0
  28 #define MDSTAT_STATE_ENABLE             0x3
  29
  30 struct ti_psc {
  31         int id;
  32         void __iomem *base;
  33 };
  34
  35 struct ti_pd;
  36
  37 struct ti_pd {
  38         int id;
  39         int usecount;
  40         struct ti_psc *psc;
  41         struct ti_pd *depend;
  42 };
  43
  44 struct ti_lpsc;
  45
  46 struct ti_lpsc {
  47         int id;
  48         int usecount;
  49         struct ti_psc *psc;
  50         struct ti_pd *pd;
  51         struct ti_lpsc *depend;
  52 };
  53
  54 struct ti_dev {
  55         struct ti_lpsc *lpsc;
  56         int id;
  57 };
  58
  59 /**
  60  * struct ti_k3_pd_platdata - pm domain controller information structure
  61  */
  62 struct ti_k3_pd_platdata {
  63         struct ti_psc *psc;
  64         struct ti_pd *pd;
  65         struct ti_lpsc *lpsc;
  66         struct ti_dev *devs;
  67         int num_psc;
  68         int num_pd;
  69         int num_lpsc;
  70         int num_devs;
  71 };
  72
  73 #define PSC(_id, _base) { .id = _id, .base = (void *)_base, }
  74 #define PSC_PD(_id, _psc, _depend) { .id = _id, .psc = _psc, .depend = _depend }
  75 #define PSC_LPSC(_id, _psc, _pd, _depend) { .id = _id, .psc = _psc, .pd = _pd, .depend = _depend }
  76 #define PSC_DEV(_id, _lpsc) { .id = _id, .lpsc = _lpsc }
  77
  78 extern const struct ti_k3_pd_platdata j721e_pd_platdata;
  79 extern const struct ti_k3_pd_platdata j7200_pd_platdata;
  80 extern const struct ti_k3_pd_platdata j721s2_pd_platdata;
  81 extern const struct ti_k3_pd_platdata am62x_pd_platdata;
  82 extern const struct ti_k3_pd_platdata am62ax_pd_platdata;
  83
  84 u8 ti_pd_state(struct ti_pd *pd);
  85 u8 lpsc_get_state(struct ti_lpsc *lpsc);
  86 int ti_lpsc_transition(struct ti_lpsc *lpsc, u8 state);
  87
  88 #endif