LXR linux/arch/arm/mach-pxa/idp.h

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 *  arch/arm/mach-pxa/include/mach/idp.h
   4 *
   5 * Copyright (c) 2001 Cliff Brake, Accelent Systems Inc.
   6 *
   7 * 2001-09-13: Cliff Brake <cbrake@accelent.com>
   8 *             Initial code
   9 *
  10 * 2005-02-15: Cliff Brake <cliff.brake@gmail.com>
  11 *             <http://www.vibren.com> <http://bec-systems.com>
  12 *             Changes for 2.6 kernel.
  13 */
  14
  15
  16/*
  17 * Note: this file must be safe to include in assembly files
  18 *
  19 * Support for the Vibren PXA255 IDP requires rev04 or later
  20 * IDP hardware.
  21 */
  22
  23#include <mach/irqs.h> /* PXA_GPIO_TO_IRQ */
  24
  25#define IDP_FLASH_PHYS          (PXA_CS0_PHYS)
  26#define IDP_ALT_FLASH_PHYS      (PXA_CS1_PHYS)
  27#define IDP_MEDIAQ_PHYS         (PXA_CS3_PHYS)
  28#define IDP_IDE_PHYS            (PXA_CS5_PHYS + 0x03000000)
  29#define IDP_ETH_PHYS            (PXA_CS5_PHYS + 0x03400000)
  30#define IDP_COREVOLT_PHYS       (PXA_CS5_PHYS + 0x03800000)
  31#define IDP_CPLD_PHYS           (PXA_CS5_PHYS + 0x03C00000)
  32
  33
  34/*
  35 * virtual memory map
  36 */
  37
  38#define IDP_COREVOLT_VIRT       (0xf0000000)
  39#define IDP_COREVOLT_SIZE       (1*1024*1024)
  40
  41#define IDP_CPLD_VIRT           (IDP_COREVOLT_VIRT + IDP_COREVOLT_SIZE)
  42#define IDP_CPLD_SIZE           (1*1024*1024)
  43
  44#if (IDP_CPLD_VIRT + IDP_CPLD_SIZE) > 0xfc000000
  45#error Your custom IO space is getting a bit large !!
  46#endif
  47
  48#define CPLD_P2V(x)             ((x) - IDP_CPLD_PHYS + IDP_CPLD_VIRT)
  49#define CPLD_V2P(x)             ((x) - IDP_CPLD_VIRT + IDP_CPLD_PHYS)
  50
  51#ifndef __ASSEMBLY__
  52#  define __CPLD_REG(x)         (*((volatile unsigned long *)CPLD_P2V(x)))
  53#else
  54#  define __CPLD_REG(x)         CPLD_P2V(x)
  55#endif
  56
  57/* board level registers in the CPLD: (offsets from CPLD_VIRT) */
  58
  59#define _IDP_CPLD_REV                   (IDP_CPLD_PHYS + 0x00)
  60#define _IDP_CPLD_PERIPH_PWR            (IDP_CPLD_PHYS + 0x04)
  61#define _IDP_CPLD_LED_CONTROL           (IDP_CPLD_PHYS + 0x08)
  62#define _IDP_CPLD_KB_COL_HIGH           (IDP_CPLD_PHYS + 0x0C)
  63#define _IDP_CPLD_KB_COL_LOW            (IDP_CPLD_PHYS + 0x10)
  64#define _IDP_CPLD_PCCARD_EN             (IDP_CPLD_PHYS + 0x14)
  65#define _IDP_CPLD_GPIOH_DIR             (IDP_CPLD_PHYS + 0x18)
  66#define _IDP_CPLD_GPIOH_VALUE           (IDP_CPLD_PHYS + 0x1C)
  67#define _IDP_CPLD_GPIOL_DIR             (IDP_CPLD_PHYS + 0x20)
  68#define _IDP_CPLD_GPIOL_VALUE           (IDP_CPLD_PHYS + 0x24)
  69#define _IDP_CPLD_PCCARD_PWR            (IDP_CPLD_PHYS + 0x28)
  70#define _IDP_CPLD_MISC_CTRL             (IDP_CPLD_PHYS + 0x2C)
  71#define _IDP_CPLD_LCD                   (IDP_CPLD_PHYS + 0x30)
  72#define _IDP_CPLD_FLASH_WE              (IDP_CPLD_PHYS + 0x34)
  73
  74#define _IDP_CPLD_KB_ROW                (IDP_CPLD_PHYS + 0x50)
  75#define _IDP_CPLD_PCCARD0_STATUS        (IDP_CPLD_PHYS + 0x54)
  76#define _IDP_CPLD_PCCARD1_STATUS        (IDP_CPLD_PHYS + 0x58)
  77#define _IDP_CPLD_MISC_STATUS           (IDP_CPLD_PHYS + 0x5C)
  78
  79/* FPGA register virtual addresses */
  80
  81#define IDP_CPLD_REV                    __CPLD_REG(_IDP_CPLD_REV)
  82#define IDP_CPLD_PERIPH_PWR             __CPLD_REG(_IDP_CPLD_PERIPH_PWR)
  83#define IDP_CPLD_LED_CONTROL            __CPLD_REG(_IDP_CPLD_LED_CONTROL)
  84#define IDP_CPLD_KB_COL_HIGH            __CPLD_REG(_IDP_CPLD_KB_COL_HIGH)
  85#define IDP_CPLD_KB_COL_LOW             __CPLD_REG(_IDP_CPLD_KB_COL_LOW)
  86#define IDP_CPLD_PCCARD_EN              __CPLD_REG(_IDP_CPLD_PCCARD_EN)
  87#define IDP_CPLD_GPIOH_DIR              __CPLD_REG(_IDP_CPLD_GPIOH_DIR)
  88#define IDP_CPLD_GPIOH_VALUE            __CPLD_REG(_IDP_CPLD_GPIOH_VALUE)
  89#define IDP_CPLD_GPIOL_DIR              __CPLD_REG(_IDP_CPLD_GPIOL_DIR)
  90#define IDP_CPLD_GPIOL_VALUE            __CPLD_REG(_IDP_CPLD_GPIOL_VALUE)
  91#define IDP_CPLD_PCCARD_PWR             __CPLD_REG(_IDP_CPLD_PCCARD_PWR)
  92#define IDP_CPLD_MISC_CTRL              __CPLD_REG(_IDP_CPLD_MISC_CTRL)
  93#define IDP_CPLD_LCD                    __CPLD_REG(_IDP_CPLD_LCD)
  94#define IDP_CPLD_FLASH_WE               __CPLD_REG(_IDP_CPLD_FLASH_WE)
  95
  96#define IDP_CPLD_KB_ROW                 __CPLD_REG(_IDP_CPLD_KB_ROW)
  97#define IDP_CPLD_PCCARD0_STATUS         __CPLD_REG(_IDP_CPLD_PCCARD0_STATUS)
  98#define IDP_CPLD_PCCARD1_STATUS         __CPLD_REG(_IDP_CPLD_PCCARD1_STATUS)
  99#define IDP_CPLD_MISC_STATUS            __CPLD_REG(_IDP_CPLD_MISC_STATUS)
 100
 101
 102/*
 103 * Bit masks for various registers
 104 */
 105
 106// IDP_CPLD_PCCARD_PWR
 107#define PCC0_PWR0       (1 << 0)
 108#define PCC0_PWR1       (1 << 1)
 109#define PCC0_PWR2       (1 << 2)
 110#define PCC0_PWR3       (1 << 3)
 111#define PCC1_PWR0       (1 << 4)
 112#define PCC1_PWR1       (1 << 5)
 113#define PCC1_PWR2       (1 << 6)
 114#define PCC1_PWR3       (1 << 7)
 115
 116// IDP_CPLD_PCCARD_EN
 117#define PCC0_RESET      (1 << 6)
 118#define PCC1_RESET      (1 << 7)
 119#define PCC0_ENABLE     (1 << 0)
 120#define PCC1_ENABLE     (1 << 1)
 121
 122// IDP_CPLD_PCCARDx_STATUS
 123#define _PCC_WRPROT     (1 << 7) // 7-4 read as low true
 124#define _PCC_RESET      (1 << 6)
 125#define _PCC_IRQ        (1 << 5)
 126#define _PCC_INPACK     (1 << 4)
 127#define PCC_BVD2        (1 << 3)
 128#define PCC_BVD1        (1 << 2)
 129#define PCC_VS2         (1 << 1)
 130#define PCC_VS1         (1 << 0)
 131
 132/* A listing of interrupts used by external hardware devices */
 133
 134#define TOUCH_PANEL_IRQ                 PXA_GPIO_TO_IRQ(5)
 135#define IDE_IRQ                         PXA_GPIO_TO_IRQ(21)
 136
 137#define TOUCH_PANEL_IRQ_EDGE            IRQ_TYPE_EDGE_FALLING
 138
 139#define ETHERNET_IRQ                    PXA_GPIO_TO_IRQ(4)
 140#define ETHERNET_IRQ_EDGE               IRQ_TYPE_EDGE_RISING
 141
 142#define IDE_IRQ_EDGE                    IRQ_TYPE_EDGE_RISING
 143
 144#define PCMCIA_S0_CD_VALID              PXA_GPIO_TO_IRQ(7)
 145#define PCMCIA_S0_CD_VALID_EDGE         IRQ_TYPE_EDGE_BOTH
 146
 147#define PCMCIA_S1_CD_VALID              PXA_GPIO_TO_IRQ(8)
 148#define PCMCIA_S1_CD_VALID_EDGE         IRQ_TYPE_EDGE_BOTH
 149
 150#define PCMCIA_S0_RDYINT                PXA_GPIO_TO_IRQ(19)
 151#define PCMCIA_S1_RDYINT                PXA_GPIO_TO_IRQ(22)
 152
 153
 154/*
 155 * Macros for LED Driver
 156 */
 157
 158/* leds 0 = ON */
 159#define IDP_HB_LED      (1<<5)
 160#define IDP_BUSY_LED    (1<<6)
 161
 162#define IDP_LEDS_MASK   (IDP_HB_LED | IDP_BUSY_LED)
 163
 164/*
 165 * macros for MTD driver
 166 */
 167
 168#define FLASH_WRITE_PROTECT_DISABLE()   ((IDP_CPLD_FLASH_WE) &= ~(0x1))
 169#define FLASH_WRITE_PROTECT_ENABLE()    ((IDP_CPLD_FLASH_WE) |= (0x1))
 170
 171/*
 172 * macros for matrix keyboard driver
 173 */
 174
 175#define KEYBD_MATRIX_NUMBER_INPUTS      7
 176#define KEYBD_MATRIX_NUMBER_OUTPUTS     14
 177
 178#define KEYBD_MATRIX_INVERT_OUTPUT_LOGIC        FALSE
 179#define KEYBD_MATRIX_INVERT_INPUT_LOGIC         FALSE
 180
 181#define KEYBD_MATRIX_SETTLING_TIME_US                   100
 182#define KEYBD_MATRIX_KEYSTATE_DEBOUNCE_CONSTANT         2
 183
 184#define KEYBD_MATRIX_SET_OUTPUTS(outputs) \
 185{\
 186        IDP_CPLD_KB_COL_LOW = outputs;\
 187        IDP_CPLD_KB_COL_HIGH = outputs >> 7;\
 188}
 189
 190#define KEYBD_MATRIX_GET_INPUTS(inputs) \
 191{\
 192        inputs = (IDP_CPLD_KB_ROW & 0x7f);\
 193}
 194
 195
 196