1. 根目录:
2. arch
3. arm
4. mach-imx
5. 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)

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 int imx_iomuxv1_init(void __iomem *base, int numports);

#endif /* __MACH_IOMUX_V1_H__ */