release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-pxa/include/mach/idp.h

   1 /*
   2  *  arch/arm/mach-pxa/include/mach/idp.h
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  *
   8  * Copyright (c) 2001 Cliff Brake, Accelent Systems Inc.
   9  *
  10  * 2001-09-13: Cliff Brake <cbrake@accelent.com>
  11  *             Initial code
  12  *
  13  * 2005-02-15: Cliff Brake <cliff.brake@gmail.com>
  14  *             <http://www.vibren.com> <http://bec-systems.com>
  15  *             Changes for 2.6 kernel.
  16  */
  17
  18
  19 /*
  20  * Note: this file must be safe to include in assembly files
  21  *
  22  * Support for the Vibren PXA255 IDP requires rev04 or later
  23  * IDP hardware.
  24  */
  25
  26
  27 #define IDP_FLASH_PHYS          (PXA_CS0_PHYS)
  28 #define IDP_ALT_FLASH_PHYS      (PXA_CS1_PHYS)
  29 #define IDP_MEDIAQ_PHYS         (PXA_CS3_PHYS)
  30 #define IDP_IDE_PHYS            (PXA_CS5_PHYS + 0x03000000)
  31 #define IDP_ETH_PHYS            (PXA_CS5_PHYS + 0x03400000)
  32 #define IDP_COREVOLT_PHYS       (PXA_CS5_PHYS + 0x03800000)
  33 #define IDP_CPLD_PHYS           (PXA_CS5_PHYS + 0x03C00000)
  34
  35
  36 /*
  37  * virtual memory map
  38  */
  39
  40 #define IDP_COREVOLT_VIRT       (0xf0000000)
  41 #define IDP_COREVOLT_SIZE       (1*1024*1024)
  42
  43 #define IDP_CPLD_VIRT           (IDP_COREVOLT_VIRT + IDP_COREVOLT_SIZE)
  44 #define IDP_CPLD_SIZE           (1*1024*1024)
  45
  46 #if (IDP_CPLD_VIRT + IDP_CPLD_SIZE) > 0xfc000000
  47 #error Your custom IO space is getting a bit large !!
  48 #endif
  49
  50 #define CPLD_P2V(x)             ((x) - IDP_CPLD_PHYS + IDP_CPLD_VIRT)
  51 #define CPLD_V2P(x)             ((x) - IDP_CPLD_VIRT + IDP_CPLD_PHYS)
  52
  53 #ifndef __ASSEMBLY__
  54 #  define __CPLD_REG(x)         (*((volatile unsigned long *)CPLD_P2V(x)))
  55 #else
  56 #  define __CPLD_REG(x)         CPLD_P2V(x)
  57 #endif
  58
  59 /* board level registers in the CPLD: (offsets from CPLD_VIRT) */
  60
  61 #define _IDP_CPLD_REV                   (IDP_CPLD_PHYS + 0x00)
  62 #define _IDP_CPLD_PERIPH_PWR            (IDP_CPLD_PHYS + 0x04)
  63 #define _IDP_CPLD_LED_CONTROL           (IDP_CPLD_PHYS + 0x08)
  64 #define _IDP_CPLD_KB_COL_HIGH           (IDP_CPLD_PHYS + 0x0C)
  65 #define _IDP_CPLD_KB_COL_LOW            (IDP_CPLD_PHYS + 0x10)
  66 #define _IDP_CPLD_PCCARD_EN             (IDP_CPLD_PHYS + 0x14)
  67 #define _IDP_CPLD_GPIOH_DIR             (IDP_CPLD_PHYS + 0x18)
  68 #define _IDP_CPLD_GPIOH_VALUE           (IDP_CPLD_PHYS + 0x1C)
  69 #define _IDP_CPLD_GPIOL_DIR             (IDP_CPLD_PHYS + 0x20)
  70 #define _IDP_CPLD_GPIOL_VALUE           (IDP_CPLD_PHYS + 0x24)
  71 #define _IDP_CPLD_PCCARD_PWR            (IDP_CPLD_PHYS + 0x28)
  72 #define _IDP_CPLD_MISC_CTRL             (IDP_CPLD_PHYS + 0x2C)
  73 #define _IDP_CPLD_LCD                   (IDP_CPLD_PHYS + 0x30)
  74 #define _IDP_CPLD_FLASH_WE              (IDP_CPLD_PHYS + 0x34)
  75
  76 #define _IDP_CPLD_KB_ROW                (IDP_CPLD_PHYS + 0x50)
  77 #define _IDP_CPLD_PCCARD0_STATUS        (IDP_CPLD_PHYS + 0x54)
  78 #define _IDP_CPLD_PCCARD1_STATUS        (IDP_CPLD_PHYS + 0x58)
  79 #define _IDP_CPLD_MISC_STATUS           (IDP_CPLD_PHYS + 0x5C)
  80
  81 /* FPGA register virtual addresses */
  82
  83 #define IDP_CPLD_REV                    __CPLD_REG(_IDP_CPLD_REV)
  84 #define IDP_CPLD_PERIPH_PWR             __CPLD_REG(_IDP_CPLD_PERIPH_PWR)
  85 #define IDP_CPLD_LED_CONTROL            __CPLD_REG(_IDP_CPLD_LED_CONTROL)
  86 #define IDP_CPLD_KB_COL_HIGH            __CPLD_REG(_IDP_CPLD_KB_COL_HIGH)
  87 #define IDP_CPLD_KB_COL_LOW             __CPLD_REG(_IDP_CPLD_KB_COL_LOW)
  88 #define IDP_CPLD_PCCARD_EN              __CPLD_REG(_IDP_CPLD_PCCARD_EN)
  89 #define IDP_CPLD_GPIOH_DIR              __CPLD_REG(_IDP_CPLD_GPIOH_DIR)
  90 #define IDP_CPLD_GPIOH_VALUE            __CPLD_REG(_IDP_CPLD_GPIOH_VALUE)
  91 #define IDP_CPLD_GPIOL_DIR              __CPLD_REG(_IDP_CPLD_GPIOL_DIR)
  92 #define IDP_CPLD_GPIOL_VALUE            __CPLD_REG(_IDP_CPLD_GPIOL_VALUE)
  93 #define IDP_CPLD_PCCARD_PWR             __CPLD_REG(_IDP_CPLD_PCCARD_PWR)
  94 #define IDP_CPLD_MISC_CTRL              __CPLD_REG(_IDP_CPLD_MISC_CTRL)
  95 #define IDP_CPLD_LCD                    __CPLD_REG(_IDP_CPLD_LCD)
  96 #define IDP_CPLD_FLASH_WE               __CPLD_REG(_IDP_CPLD_FLASH_WE)
  97
  98 #define IDP_CPLD_KB_ROW                 __CPLD_REG(_IDP_CPLD_KB_ROW)
  99 #define IDP_CPLD_PCCARD0_STATUS         __CPLD_REG(_IDP_CPLD_PCCARD0_STATUS)
 100 #define IDP_CPLD_PCCARD1_STATUS         __CPLD_REG(_IDP_CPLD_PCCARD1_STATUS)
 101 #define IDP_CPLD_MISC_STATUS            __CPLD_REG(_IDP_CPLD_MISC_STATUS)
 102
 103
 104 /*
 105  * Bit masks for various registers
 106  */
 107
 108 // IDP_CPLD_PCCARD_PWR
 109 #define PCC0_PWR0       (1 << 0)
 110 #define PCC0_PWR1       (1 << 1)
 111 #define PCC0_PWR2       (1 << 2)
 112 #define PCC0_PWR3       (1 << 3)
 113 #define PCC1_PWR0       (1 << 4)
 114 #define PCC1_PWR1       (1 << 5)
 115 #define PCC1_PWR2       (1 << 6)
 116 #define PCC1_PWR3       (1 << 7)
 117
 118 // IDP_CPLD_PCCARD_EN
 119 #define PCC0_RESET      (1 << 6)
 120 #define PCC1_RESET      (1 << 7)
 121 #define PCC0_ENABLE     (1 << 0)
 122 #define PCC1_ENABLE     (1 << 1)
 123
 124 // IDP_CPLD_PCCARDx_STATUS
 125 #define _PCC_WRPROT     (1 << 7) // 7-4 read as low true
 126 #define _PCC_RESET      (1 << 6)
 127 #define _PCC_IRQ        (1 << 5)
 128 #define _PCC_INPACK     (1 << 4)
 129 #define PCC_BVD2        (1 << 3)
 130 #define PCC_BVD1        (1 << 2)
 131 #define PCC_VS2         (1 << 1)
 132 #define PCC_VS1         (1 << 0)
 133
 134 #define PCC_DETECT(x)   (GPLR(7 + (x)) & GPIO_bit(7 + (x)))
 135
 136 /* A listing of interrupts used by external hardware devices */
 137
 138 #define TOUCH_PANEL_IRQ                 IRQ_GPIO(5)
 139 #define IDE_IRQ                         IRQ_GPIO(21)
 140
 141 #define TOUCH_PANEL_IRQ_EDGE            IRQ_TYPE_EDGE_FALLING
 142
 143 #define ETHERNET_IRQ                    IRQ_GPIO(4)
 144 #define ETHERNET_IRQ_EDGE               IRQ_TYPE_EDGE_RISING
 145
 146 #define IDE_IRQ_EDGE                    IRQ_TYPE_EDGE_RISING
 147
 148 #define PCMCIA_S0_CD_VALID              IRQ_GPIO(7)
 149 #define PCMCIA_S0_CD_VALID_EDGE         IRQ_TYPE_EDGE_BOTH
 150
 151 #define PCMCIA_S1_CD_VALID              IRQ_GPIO(8)
 152 #define PCMCIA_S1_CD_VALID_EDGE         IRQ_TYPE_EDGE_BOTH
 153
 154 #define PCMCIA_S0_RDYINT                IRQ_GPIO(19)
 155 #define PCMCIA_S1_RDYINT                IRQ_GPIO(22)
 156
 157
 158 /*
 159  * Macros for LED Driver
 160  */
 161
 162 /* leds 0 = ON */
 163 #define IDP_HB_LED      (1<<5)
 164 #define IDP_BUSY_LED    (1<<6)
 165
 166 #define IDP_LEDS_MASK   (IDP_HB_LED | IDP_BUSY_LED)
 167
 168 /*
 169  * macros for MTD driver
 170  */
 171
 172 #define FLASH_WRITE_PROTECT_DISABLE()   ((IDP_CPLD_FLASH_WE) &= ~(0x1))
 173 #define FLASH_WRITE_PROTECT_ENABLE()    ((IDP_CPLD_FLASH_WE) |= (0x1))
 174
 175 /*
 176  * macros for matrix keyboard driver
 177  */
 178
 179 #define KEYBD_MATRIX_NUMBER_INPUTS      7
 180 #define KEYBD_MATRIX_NUMBER_OUTPUTS     14
 181
 182 #define KEYBD_MATRIX_INVERT_OUTPUT_LOGIC        FALSE
 183 #define KEYBD_MATRIX_INVERT_INPUT_LOGIC         FALSE
 184
 185 #define KEYBD_MATRIX_SETTLING_TIME_US                   100
 186 #define KEYBD_MATRIX_KEYSTATE_DEBOUNCE_CONSTANT         2
 187
 188 #define KEYBD_MATRIX_SET_OUTPUTS(outputs) \
 189 {\
 190         IDP_CPLD_KB_COL_LOW = outputs;\
 191         IDP_CPLD_KB_COL_HIGH = outputs >> 7;\
 192 }
 193
 194 #define KEYBD_MATRIX_GET_INPUTS(inputs) \
 195 {\
 196         inputs = (IDP_CPLD_KB_ROW & 0x7f);\
 197 }