include/linux/cs5535.h

   1 /*
   2  * AMD CS5535/CS5536 definitions
   3  * Copyright (C) 2006  Advanced Micro Devices, Inc.
   4  * Copyright (C) 2009  Andres Salomon <dilinger@collabora.co.uk>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of version 2 of the GNU General Public License
   8  * as published by the Free Software Foundation.
   9  */
  10
  11 #ifndef _CS5535_H
  12 #define _CS5535_H
  13
  14 /* MSRs */
  15 #define MSR_GLIU_P2D_RO0        0x10000029
  16
  17 #define MSR_LX_GLD_MSR_CONFIG   0x48002001
  18 #define MSR_LX_MSR_PADSEL       0x48002011      /* NOT 0x48000011; the data
  19                                                  * sheet has the wrong value */
  20 #define MSR_GLCP_SYS_RSTPLL     0x4C000014
  21 #define MSR_GLCP_DOTPLL         0x4C000015
  22
  23 #define MSR_LBAR_SMB            0x5140000B
  24 #define MSR_LBAR_GPIO           0x5140000C
  25 #define MSR_LBAR_MFGPT          0x5140000D
  26 #define MSR_LBAR_ACPI           0x5140000E
  27 #define MSR_LBAR_PMS            0x5140000F
  28
  29 #define MSR_DIVIL_SOFT_RESET    0x51400017
  30
  31 #define MSR_PIC_YSEL_LOW        0x51400020
  32 #define MSR_PIC_YSEL_HIGH       0x51400021
  33 #define MSR_PIC_ZSEL_LOW        0x51400022
  34 #define MSR_PIC_ZSEL_HIGH       0x51400023
  35 #define MSR_PIC_IRQM_LPC        0x51400025
  36
  37 #define MSR_MFGPT_IRQ           0x51400028
  38 #define MSR_MFGPT_NR            0x51400029
  39 #define MSR_MFGPT_SETUP         0x5140002B
  40
  41 #define MSR_LX_SPARE_MSR        0x80000011      /* DC-specific */
  42
  43 #define MSR_GX_GLD_MSR_CONFIG   0xC0002001
  44 #define MSR_GX_MSR_PADSEL       0xC0002011
  45
  46 /* resource sizes */
  47 #define LBAR_GPIO_SIZE          0xFF
  48 #define LBAR_MFGPT_SIZE         0x40
  49 #define LBAR_ACPI_SIZE          0x40
  50 #define LBAR_PMS_SIZE           0x80
  51
  52 /* VSA2 magic values */
  53 #define VSA_VRC_INDEX           0xAC1C
  54 #define VSA_VRC_DATA            0xAC1E
  55 #define VSA_VR_UNLOCK           0xFC53  /* unlock virtual register */
  56 #define VSA_VR_SIGNATURE        0x0003
  57 #define VSA_VR_MEM_SIZE         0x0200
  58 #define AMD_VSA_SIG             0x4132  /* signature is ascii 'VSA2' */
  59 #define GSW_VSA_SIG             0x534d  /* General Software signature */
  60
  61 #include <linux/io.h>
  62
  63 static inline int cs5535_has_vsa2(void)
  64 {
  65         static int has_vsa2 = -1;
  66
  67         if (has_vsa2 == -1) {
  68                 uint16_t val;
  69
  70                 /*
  71                  * The VSA has virtual registers that we can query for a
  72                  * signature.
  73                  */
  74                 outw(VSA_VR_UNLOCK, VSA_VRC_INDEX);
  75                 outw(VSA_VR_SIGNATURE, VSA_VRC_INDEX);
  76
  77                 val = inw(VSA_VRC_DATA);
  78                 has_vsa2 = (val == AMD_VSA_SIG || val == GSW_VSA_SIG);
  79         }
  80
  81         return has_vsa2;
  82 }
  83
  84 /* GPIOs */
  85 #define GPIO_OUTPUT_VAL         0x00
  86 #define GPIO_OUTPUT_ENABLE      0x04
  87 #define GPIO_OUTPUT_OPEN_DRAIN  0x08
  88 #define GPIO_OUTPUT_INVERT      0x0C
  89 #define GPIO_OUTPUT_AUX1        0x10
  90 #define GPIO_OUTPUT_AUX2        0x14
  91 #define GPIO_PULL_UP            0x18
  92 #define GPIO_PULL_DOWN          0x1C
  93 #define GPIO_INPUT_ENABLE       0x20
  94 #define GPIO_INPUT_INVERT       0x24
  95 #define GPIO_INPUT_FILTER       0x28
  96 #define GPIO_INPUT_EVENT_COUNT  0x2C
  97 #define GPIO_READ_BACK          0x30
  98 #define GPIO_INPUT_AUX1         0x34
  99 #define GPIO_EVENTS_ENABLE      0x38
 100 #define GPIO_LOCK_ENABLE        0x3C
 101 #define GPIO_POSITIVE_EDGE_EN   0x40
 102 #define GPIO_NEGATIVE_EDGE_EN   0x44
 103 #define GPIO_POSITIVE_EDGE_STS  0x48
 104 #define GPIO_NEGATIVE_EDGE_STS  0x4C
 105
 106 #define GPIO_MAP_X              0xE0
 107 #define GPIO_MAP_Y              0xE4
 108 #define GPIO_MAP_Z              0xE8
 109 #define GPIO_MAP_W              0xEC
 110
 111 void cs5535_gpio_set(unsigned offset, unsigned int reg);
 112 void cs5535_gpio_clear(unsigned offset, unsigned int reg);
 113 int cs5535_gpio_isset(unsigned offset, unsigned int reg);
 114
 115 /* MFGPTs */
 116
 117 #define MFGPT_MAX_TIMERS        8
 118 #define MFGPT_TIMER_ANY         (-1)
 119
 120 #define MFGPT_DOMAIN_WORKING    1
 121 #define MFGPT_DOMAIN_STANDBY    2
 122 #define MFGPT_DOMAIN_ANY        (MFGPT_DOMAIN_WORKING | MFGPT_DOMAIN_STANDBY)
 123
 124 #define MFGPT_CMP1              0
 125 #define MFGPT_CMP2              1
 126
 127 #define MFGPT_EVENT_IRQ         0
 128 #define MFGPT_EVENT_NMI         1
 129 #define MFGPT_EVENT_RESET       3
 130
 131 #define MFGPT_REG_CMP1          0
 132 #define MFGPT_REG_CMP2          2
 133 #define MFGPT_REG_COUNTER       4
 134 #define MFGPT_REG_SETUP         6
 135
 136 #define MFGPT_SETUP_CNTEN       (1 << 15)
 137 #define MFGPT_SETUP_CMP2        (1 << 14)
 138 #define MFGPT_SETUP_CMP1        (1 << 13)
 139 #define MFGPT_SETUP_SETUP       (1 << 12)
 140 #define MFGPT_SETUP_STOPEN      (1 << 11)
 141 #define MFGPT_SETUP_EXTEN       (1 << 10)
 142 #define MFGPT_SETUP_REVEN       (1 << 5)
 143 #define MFGPT_SETUP_CLKSEL      (1 << 4)
 144
 145 struct cs5535_mfgpt_timer;
 146
 147 extern uint16_t cs5535_mfgpt_read(struct cs5535_mfgpt_timer *timer,
 148                 uint16_t reg);
 149 extern void cs5535_mfgpt_write(struct cs5535_mfgpt_timer *timer, uint16_t reg,
 150                 uint16_t value);
 151
 152 extern int cs5535_mfgpt_toggle_event(struct cs5535_mfgpt_timer *timer, int cmp,
 153                 int event, int enable);
 154 extern int cs5535_mfgpt_set_irq(struct cs5535_mfgpt_timer *timer, int cmp,
 155                 int *irq, int enable);
 156 extern struct cs5535_mfgpt_timer *cs5535_mfgpt_alloc_timer(int timer,
 157                 int domain);
 158 extern void cs5535_mfgpt_free_timer(struct cs5535_mfgpt_timer *timer);
 159
 160 static inline int cs5535_mfgpt_setup_irq(struct cs5535_mfgpt_timer *timer,
 161                 int cmp, int *irq)
 162 {
 163         return cs5535_mfgpt_set_irq(timer, cmp, irq, 1);
 164 }
 165
 166 static inline int cs5535_mfgpt_release_irq(struct cs5535_mfgpt_timer *timer,
 167                 int cmp, int *irq)
 168 {
 169         return cs5535_mfgpt_set_irq(timer, cmp, irq, 0);
 170 }
 171
 172 #endif