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iomux-v1.h

/*
 * Copyright (C) 2008 by Sascha Hauer <kernel@pengutronix.de>
 * Copyright (C) 2009 by Holger Schurig <hs4233@mail.mn-solutions.de>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA 02110-1301, USA.
 */
#ifndef __MACH_IOMUX_V1_H__
#define __MACH_IOMUX_V1_H__

/*
*  GPIO Module and I/O Multiplexer
*  x = 0..3 for reg_A, reg_B, reg_C, reg_D
*/
#define MXC_DDIR(x)     (0x00 + ((x) << 8))
#define MXC_OCR1(x)     (0x04 + ((x) << 8))
#define MXC_OCR2(x)     (0x08 + ((x) << 8))
#define MXC_ICONFA1(x)  (0x0c + ((x) << 8))
#define MXC_ICONFA2(x)  (0x10 + ((x) << 8))
#define MXC_ICONFB1(x)  (0x14 + ((x) << 8))
#define MXC_ICONFB2(x)  (0x18 + ((x) << 8))
#define MXC_DR(x) (0x1c + ((x) << 8))
#define MXC_GIUS(x)     (0x20 + ((x) << 8))
#define MXC_SSR(x)      (0x24 + ((x) << 8))
#define MXC_ICR1(x)     (0x28 + ((x) << 8))
#define MXC_ICR2(x)     (0x2c + ((x) << 8))
#define MXC_IMR(x)      (0x30 + ((x) << 8))
#define MXC_ISR(x)      (0x34 + ((x) << 8))
#define MXC_GPR(x)      (0x38 + ((x) << 8))
#define MXC_SWR(x)      (0x3c + ((x) << 8))
#define MXC_PUEN(x)     (0x40 + ((x) << 8))

#define MX1_NUM_GPIO_PORT     4
#define MX21_NUM_GPIO_PORT    6
#define MX27_NUM_GPIO_PORT    6

#define GPIO_PIN_MASK 0x1f

#define GPIO_PORT_SHIFT 5
#define GPIO_PORT_MASK (0x7 << GPIO_PORT_SHIFT)

#define GPIO_PORTA      (0 << GPIO_PORT_SHIFT)
#define GPIO_PORTB      (1 << GPIO_PORT_SHIFT)
#define GPIO_PORTC      (2 << GPIO_PORT_SHIFT)
#define GPIO_PORTD      (3 << GPIO_PORT_SHIFT)
#define GPIO_PORTE      (4 << GPIO_PORT_SHIFT)
#define GPIO_PORTF      (5 << GPIO_PORT_SHIFT)

#define GPIO_OUT  (1 << 8)
#define GPIO_IN         (0 << 8)
#define GPIO_PUEN (1 << 9)

#define GPIO_PF         (1 << 10)
#define GPIO_AF         (1 << 11)

#define GPIO_OCR_SHIFT 12
#define GPIO_OCR_MASK   (3 << GPIO_OCR_SHIFT)
#define GPIO_AIN  (0 << GPIO_OCR_SHIFT)
#define GPIO_BIN  (1 << GPIO_OCR_SHIFT)
#define GPIO_CIN  (2 << GPIO_OCR_SHIFT)
#define GPIO_GPIO (3 << GPIO_OCR_SHIFT)

#define GPIO_AOUT_SHIFT 14
#define GPIO_AOUT_MASK  (3 << GPIO_AOUT_SHIFT)
#define GPIO_AOUT (0 << GPIO_AOUT_SHIFT)
#define GPIO_AOUT_ISR   (1 << GPIO_AOUT_SHIFT)
#define GPIO_AOUT_0     (2 << GPIO_AOUT_SHIFT)
#define GPIO_AOUT_1     (3 << GPIO_AOUT_SHIFT)

#define GPIO_BOUT_SHIFT 16
#define GPIO_BOUT_MASK  (3 << GPIO_BOUT_SHIFT)
#define GPIO_BOUT (0 << GPIO_BOUT_SHIFT)
#define GPIO_BOUT_ISR   (1 << GPIO_BOUT_SHIFT)
#define GPIO_BOUT_0     (2 << GPIO_BOUT_SHIFT)
#define GPIO_BOUT_1     (3 << GPIO_BOUT_SHIFT)

/* decode irq number to use with IMR(x), ISR(x) and friends */
#define IRQ_TO_REG(irq) ((irq - MXC_INTERNAL_IRQS) >> 5)

#define IRQ_GPIOA(x)  (MXC_GPIO_IRQ_START + x)
#define IRQ_GPIOB(x)  (IRQ_GPIOA(32) + x)
#define IRQ_GPIOC(x)  (IRQ_GPIOB(32) + x)
#define IRQ_GPIOD(x)  (IRQ_GPIOC(32) + x)
#define IRQ_GPIOE(x)  (IRQ_GPIOD(32) + x)
#define IRQ_GPIOF(x)  (IRQ_GPIOE(32) + x)

extern int mxc_gpio_mode(int gpio_mode);
extern int mxc_gpio_setup_multiple_pins(const int *pin_list, unsigned count,
            const char *label);
extern void mxc_gpio_release_multiple_pins(const int *pin_list, int count);

#endif /* __MACH_IOMUX_V1_H__ */

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