arch/arm/plat-mxc/include/mach/iomux.h

   1 /*
   2 * Copyright (C) 2008 by Sascha Hauer <kernel@pengutronix.de>
   3 * Copyright (C) 2009 by Holger Schurig <hs4233@mail.mn-solutions.de>
   4 *
   5 * This program is free software; you can redistribute it and/or
   6 * modify it under the terms of the GNU General Public License
   7 * as published by the Free Software Foundation; either version 2
   8 * of the License, or (at your option) any later version.
   9 * This program is distributed in the hope that it will be useful,
  10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 * GNU General Public License for more details.
  13 *
  14 * You should have received a copy of the GNU General Public License
  15 * along with this program; if not, write to the Free Software
  16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  17 * MA 02110-1301, USA.
  18 */
  19
  20 #ifndef _MXC_IOMUX_H
  21 #define _MXC_IOMUX_H
  22
  23 /*
  24 *  GPIO Module and I/O Multiplexer
  25 *  x = 0..3 for reg_A, reg_B, reg_C, reg_D
  26 */
  27 #define VA_GPIO_BASE    IO_ADDRESS(GPIO_BASE_ADDR)
  28 #define MXC_DDIR(x)    (0x00 + ((x) << 8))
  29 #define MXC_OCR1(x)    (0x04 + ((x) << 8))
  30 #define MXC_OCR2(x)    (0x08 + ((x) << 8))
  31 #define MXC_ICONFA1(x) (0x0c + ((x) << 8))
  32 #define MXC_ICONFA2(x) (0x10 + ((x) << 8))
  33 #define MXC_ICONFB1(x) (0x14 + ((x) << 8))
  34 #define MXC_ICONFB2(x) (0x18 + ((x) << 8))
  35 #define MXC_DR(x)      (0x1c + ((x) << 8))
  36 #define MXC_GIUS(x)    (0x20 + ((x) << 8))
  37 #define MXC_SSR(x)     (0x24 + ((x) << 8))
  38 #define MXC_ICR1(x)    (0x28 + ((x) << 8))
  39 #define MXC_ICR2(x)    (0x2c + ((x) << 8))
  40 #define MXC_IMR(x)     (0x30 + ((x) << 8))
  41 #define MXC_ISR(x)     (0x34 + ((x) << 8))
  42 #define MXC_GPR(x)     (0x38 + ((x) << 8))
  43 #define MXC_SWR(x)     (0x3c + ((x) << 8))
  44 #define MXC_PUEN(x)    (0x40 + ((x) << 8))
  45
  46 #ifdef CONFIG_ARCH_MX1
  47 # define GPIO_PORT_MAX  3
  48 #endif
  49 #ifdef CONFIG_ARCH_MX2
  50 # define GPIO_PORT_MAX  5
  51 #endif
  52
  53 #ifndef GPIO_PORT_MAX
  54 # error "GPIO config port count unknown!"
  55 #endif
  56
  57 #define GPIO_PIN_MASK 0x1f
  58
  59 #define GPIO_PORT_SHIFT 5
  60 #define GPIO_PORT_MASK (0x7 << GPIO_PORT_SHIFT)
  61
  62 #define GPIO_PORTA (0 << GPIO_PORT_SHIFT)
  63 #define GPIO_PORTB (1 << GPIO_PORT_SHIFT)
  64 #define GPIO_PORTC (2 << GPIO_PORT_SHIFT)
  65 #define GPIO_PORTD (3 << GPIO_PORT_SHIFT)
  66 #define GPIO_PORTE (4 << GPIO_PORT_SHIFT)
  67 #define GPIO_PORTF (5 << GPIO_PORT_SHIFT)
  68
  69 #define GPIO_OUT   (1 << 8)
  70 #define GPIO_IN    (0 << 8)
  71 #define GPIO_PUEN  (1 << 9)
  72
  73 #define GPIO_PF    (1 << 10)
  74 #define GPIO_AF    (1 << 11)
  75
  76 #define GPIO_OCR_SHIFT 12
  77 #define GPIO_OCR_MASK (3 << GPIO_OCR_SHIFT)
  78 #define GPIO_AIN   (0 << GPIO_OCR_SHIFT)
  79 #define GPIO_BIN   (1 << GPIO_OCR_SHIFT)
  80 #define GPIO_CIN   (2 << GPIO_OCR_SHIFT)
  81 #define GPIO_GPIO  (3 << GPIO_OCR_SHIFT)
  82
  83 #define GPIO_AOUT_SHIFT 14
  84 #define GPIO_AOUT_MASK (3 << GPIO_AOUT_SHIFT)
  85 #define GPIO_AOUT     (0 << GPIO_AOUT_SHIFT)
  86 #define GPIO_AOUT_ISR (1 << GPIO_AOUT_SHIFT)
  87 #define GPIO_AOUT_0   (2 << GPIO_AOUT_SHIFT)
  88 #define GPIO_AOUT_1   (3 << GPIO_AOUT_SHIFT)
  89
  90 #define GPIO_BOUT_SHIFT 16
  91 #define GPIO_BOUT_MASK (3 << GPIO_BOUT_SHIFT)
  92 #define GPIO_BOUT      (0 << GPIO_BOUT_SHIFT)
  93 #define GPIO_BOUT_ISR  (1 << GPIO_BOUT_SHIFT)
  94 #define GPIO_BOUT_0    (2 << GPIO_BOUT_SHIFT)
  95 #define GPIO_BOUT_1    (3 << GPIO_BOUT_SHIFT)
  96
  97
  98 #ifdef CONFIG_ARCH_MX1
  99 #include <mach/iomux-mx1.h>
 100 #endif
 101 #ifdef CONFIG_ARCH_MX2
 102 #include <mach/iomux-mx2x.h>
 103 #ifdef CONFIG_MACH_MX21
 104 #include <mach/iomux-mx21.h>
 105 #endif
 106 #ifdef CONFIG_MACH_MX27
 107 #include <mach/iomux-mx27.h>
 108 #endif
 109 #endif
 110
 111
 112 /* decode irq number to use with IMR(x), ISR(x) and friends */
 113 #define IRQ_TO_REG(irq) ((irq - MXC_INTERNAL_IRQS) >> 5)
 114
 115 #define IRQ_GPIOA(x)  (MXC_GPIO_IRQ_START + x)
 116 #define IRQ_GPIOB(x)  (IRQ_GPIOA(32) + x)
 117 #define IRQ_GPIOC(x)  (IRQ_GPIOB(32) + x)
 118 #define IRQ_GPIOD(x)  (IRQ_GPIOC(32) + x)
 119 #define IRQ_GPIOE(x)  (IRQ_GPIOD(32) + x)
 120
 121
 122 extern void mxc_gpio_mode(int gpio_mode);
 123 extern int mxc_gpio_setup_multiple_pins(const int *pin_list, unsigned count,
 124         const char *label);
 125 extern void mxc_gpio_release_multiple_pins(const int *pin_list, int count);
 126
 127 #endif